diff --git a/client/src/main/java/com/alibaba/otter/canal/client/CanalMessageDeserializer.java b/client/src/main/java/com/alibaba/otter/canal/client/CanalMessageDeserializer.java
index b2206890..9d24a23b 100644
--- a/client/src/main/java/com/alibaba/otter/canal/client/CanalMessageDeserializer.java
+++ b/client/src/main/java/com/alibaba/otter/canal/client/CanalMessageDeserializer.java
@@ -32,10 +32,12 @@ public class CanalMessageDeserializer {
                         if (lazyParseEntry) {
                             // byteString
                             result.setRawEntries(messages.getMessagesList());
+                            result.setRaw(true);
                         } else {
                             for (ByteString byteString : messages.getMessagesList()) {
                                 result.addEntry(CanalEntry.Entry.parseFrom(byteString));
                             }
+                            result.setRaw(false);
                         }
                         return result;
                     }
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/JsonConversion.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/JsonConversion.java
index 020591f7..e61b6645 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/JsonConversion.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/JsonConversion.java
@@ -1,5 +1,9 @@
 package com.taobao.tddl.dbsync.binlog;
 
+import static com.taobao.tddl.dbsync.binlog.event.RowsLogBuffer.appendNumber2;
+import static com.taobao.tddl.dbsync.binlog.event.RowsLogBuffer.appendNumber4;
+import static com.taobao.tddl.dbsync.binlog.event.RowsLogBuffer.usecondsToStr;
+
 /**
  * 处理下MySQL json二进制转化为可读的字符串
  * 
@@ -330,12 +334,30 @@ public class JsonConversion {
                             long ultime = Math.abs(packed_value);
                             long intpart = ultime >> 24;
                             int frac = (int) (ultime % (1L << 24));
-                            text = String.format("%s%02d:%02d:%02d",
-                                packed_value >= 0 ? "" : "-",
-                                (int) ((intpart >> 12) % (1 << 10)),
-                                (int) ((intpart >> 6) % (1 << 6)),
-                                (int) (intpart % (1 << 6)));
-                            text = text + "." + usecondsToStr(frac, 6);
+                            // text = String.format("%s%02d:%02d:%02d",
+                            // packed_value >= 0 ? "" : "-",
+                            // (int) ((intpart >> 12) % (1 << 10)),
+                            // (int) ((intpart >> 6) % (1 << 6)),
+                            // (int) (intpart % (1 << 6)));
+                            // text = text + "." + usecondsToStr(frac, 6);
+                            StringBuilder builder = new StringBuilder(17);
+                            if (packed_value < 0) {
+                                builder.append('-');
+                            }
+
+                            int d = (int) ((intpart >> 12) % (1 << 10));
+                            if (d > 100) {
+                                builder.append(String.valueOf(d));
+                            } else {
+                                appendNumber2(builder, d);
+                            }
+                            builder.append(':');
+                            appendNumber2(builder, (int) ((intpart >> 6) % (1 << 6)));
+                            builder.append(':');
+                            appendNumber2(builder, (int) (intpart % (1 << 6)));
+
+                            builder.append('.').append(usecondsToStr(frac, 6));
+                            text = builder.toString();
                         }
                         buf.append('"').append(text).append('"');
                     } else if (m_field_type == LogEvent.MYSQL_TYPE_DATE || m_field_type == LogEvent.MYSQL_TYPE_DATETIME
@@ -351,14 +373,28 @@ public class JsonConversion {
                             long ymd = intpart >> 17;
                             long ym = ymd >> 5;
                             long hms = intpart % (1 << 17);
-                            text = String.format("%04d-%02d-%02d %02d:%02d:%02d",
-                                (int) (ym / 13),
-                                (int) (ym % 13),
-                                (int) (ymd % (1 << 5)),
-                                (int) (hms >> 12),
-                                (int) ((hms >> 6) % (1 << 6)),
-                                (int) (hms % (1 << 6)));
-                            text = text + "." + usecondsToStr(frac, 6);
+                            // text =
+                            // String.format("%04d-%02d-%02d %02d:%02d:%02d",
+                            // (int) (ym / 13),
+                            // (int) (ym % 13),
+                            // (int) (ymd % (1 << 5)),
+                            // (int) (hms >> 12),
+                            // (int) ((hms >> 6) % (1 << 6)),
+                            // (int) (hms % (1 << 6)));
+                            StringBuilder builder = new StringBuilder(26);
+                            appendNumber4(builder, (int) (ym / 13));
+                            builder.append('-');
+                            appendNumber2(builder, (int) (ym % 13));
+                            builder.append('-');
+                            appendNumber2(builder, (int) (ymd % (1 << 5)));
+                            builder.append(' ');
+                            appendNumber2(builder, (int) (hms >> 12));
+                            builder.append(':');
+                            appendNumber2(builder, (int) ((hms >> 6) % (1 << 6)));
+                            builder.append(':');
+                            appendNumber2(builder, (int) (hms % (1 << 6)));
+                            builder.append('.').append(usecondsToStr(frac, 6));
+                            text = builder.toString();
                         }
                         buf.append('"').append(text).append('"');
                     } else {
@@ -397,22 +433,4 @@ public class JsonConversion {
         OBJECT, ARRAY, STRING, INT, UINT, DOUBLE, LITERAL_NULL, LITERAL_TRUE, LITERAL_FALSE, OPAQUE, ERROR
     }
 
-    private static String usecondsToStr(int frac, int meta) {
-        String sec = String.valueOf(frac);
-        if (meta > 6) {
-            throw new IllegalArgumentException("unknow useconds meta : " + meta);
-        }
-
-        if (sec.length() < 6) {
-            StringBuilder result = new StringBuilder(6);
-            int len = 6 - sec.length();
-            for (; len > 0; len--) {
-                result.append('0');
-            }
-            result.append(sec);
-            sec = result.toString();
-        }
-
-        return sec.substring(0, meta);
-    }
 }
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/JsonDiffConversion.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/JsonDiffConversion.java
new file mode 100644
index 00000000..223b5d9c
--- /dev/null
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/JsonDiffConversion.java
@@ -0,0 +1,154 @@
+package com.taobao.tddl.dbsync.binlog;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.taobao.tddl.dbsync.binlog.JsonConversion.Json_Value;
+import com.taobao.tddl.dbsync.binlog.JsonConversion.Json_enum_type;
+
+/**
+ * 处理mysql8.0 parital json diff解析
+ * 
+ * @author agapple 2018年11月4日 下午3:53:46
+ * @since 1.1.2
+ */
+public class JsonDiffConversion {
+
+    /**
+     * The JSON value in the given path is replaced with a new value. It has the
+     * same effect as `JSON_REPLACE(col, path, value)`.
+     */
+    public static final int DIFF_OPERATION_REPLACE    = 0;
+    /**
+     * Add a new element at the given path. If the path specifies an array
+     * element, it has the same effect as `JSON_ARRAY_INSERT(col, path, value)`.
+     * If the path specifies an object member, it has the same effect as
+     * `JSON_INSERT(col, path, value)`.
+     */
+    public static final int DIFF_OPERATION_INSERT     = 1;
+    /**
+     * The JSON value at the given path is removed from an array or object. It
+     * has the same effect as `JSON_REMOVE(col, path)`.
+     */
+    public static final int DIFF_OPERATION_REMOVE     = 2;
+
+    public static final int JSON_DIFF_OPERATION_COUNT = 3;
+
+    public static StringBuilder print_json_diff(LogBuffer buffer, long len, String columnName, int columnIndex,
+                                                String charsetName) {
+        int position = buffer.position();
+        List<String> operation_names = new ArrayList<String>();
+        while (buffer.hasRemaining()) {
+            int operation_int = buffer.getUint8();
+            if (operation_int >= JSON_DIFF_OPERATION_COUNT) {
+                throw new IllegalArgumentException("reading operation type (invalid operation code)");
+            }
+
+            // skip path
+            long path_length = buffer.getPackedLong();
+            if (path_length > len) {
+                throw new IllegalArgumentException("skipping path");
+            }
+
+            // compute operation name
+            byte[] lastP = buffer.getData(buffer.position() + (int) path_length - 1, 1);
+            String operation_name = json_diff_operation_name(operation_int, lastP[0]);
+            operation_names.add(operation_name);
+
+            buffer.forward((int) path_length);
+            // skip value
+            if (operation_int != DIFF_OPERATION_REMOVE) {
+                long value_length = buffer.getPackedLong();
+                if (value_length > len) {
+                    throw new IllegalArgumentException("skipping path");
+                }
+
+                buffer.forward((int) value_length);
+            }
+        }
+
+        // Print function names in reverse order.
+        StringBuilder builder = new StringBuilder();
+        for (int i = operation_names.size() - 1; i >= 0; i--) {
+            if (i == 0 || operation_names.get(i - 1) != operation_names.get(i)) {
+                builder.append(operation_names.get(i)).append("(");
+            }
+        }
+
+        // Print column id
+        if (columnName != null) {
+            builder.append(columnName);
+        } else {
+            builder.append("@").append(columnIndex);
+        }
+
+        // In case this vector is empty (a no-op), make an early return
+        // after printing only the column name
+        if (operation_names.size() == 0) {
+            return builder;
+        }
+
+        // Print comma between column name and next function argument
+        builder.append(", ");
+        // Print paths and values.
+        buffer.position(position);
+        int diff_i = 0;
+        while (buffer.hasRemaining()) {
+            // Read operation
+            int operation_int = buffer.getUint8();
+
+            // Read path length
+            long path_length = buffer.getPackedLong();
+            // Print path
+            builder.append('\'').append(buffer.getFixString((int) path_length)).append('\'');
+
+            if (operation_int != DIFF_OPERATION_REMOVE) {
+                // Print comma between path and value
+                builder.append(", ");
+                // Read value length
+                long value_length = buffer.getPackedLong();
+
+                Json_Value jsonValue = JsonConversion.parse_value(buffer.getUint8(),
+                    buffer,
+                    value_length - 1,
+                    charsetName);
+                buffer.forward((int) value_length - 1);
+                // Read value
+                if (jsonValue.m_type == Json_enum_type.ERROR) {
+                    throw new IllegalArgumentException("parsing json value");
+                }
+                StringBuilder jsonBuilder = new StringBuilder();
+                jsonValue.toJsonString(jsonBuilder, charsetName);
+                builder.append(jsonBuilder);
+            }
+
+            // Print closing parenthesis
+            if (!buffer.hasRemaining() || operation_names.get(diff_i + 1) != operation_names.get(diff_i)) {
+                builder.append(")");
+            }
+
+            if (buffer.hasRemaining()) {
+                builder.append(", ");
+            }
+            diff_i++;
+        }
+
+        return builder;
+    }
+
+    private static String json_diff_operation_name(int operationType, int last_path_char) {
+        switch (operationType) {
+            case DIFF_OPERATION_REPLACE:
+                return "JSON_REPLACE";
+            case DIFF_OPERATION_INSERT:
+                if (last_path_char == ']') {
+                    return "JSON_ARRAY_INSERT";
+                } else {
+                    return "JSON_INSERT";
+                }
+            case DIFF_OPERATION_REMOVE:
+                return "JSON_REMOVE";
+        }
+        throw new IllegalArgumentException("illeagal operationType : " + operationType);
+    }
+}
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogBuffer.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogBuffer.java
index be61c99f..408eaa4e 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogBuffer.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogBuffer.java
@@ -1484,7 +1484,9 @@ public class LogBuffer {
 
         for (int bit = 0; bit < len; bit += 8) {
             int flag = ((int) buf[pos++]) & 0xff;
-            if (flag == 0) continue;
+            if (flag == 0) {
+                continue;
+            }
             if ((flag & 0x01) != 0) bitmap.set(bit);
             if ((flag & 0x02) != 0) bitmap.set(bit + 1);
             if ((flag & 0x04) != 0) bitmap.set(bit + 2);
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogDecoder.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogDecoder.java
index 639e9875..41739cf8 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogDecoder.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogDecoder.java
@@ -372,6 +372,14 @@ public final class LogDecoder {
                 header.putGtid(context.getGtidSet(), gtidLogEvent);
                 return event;
             }
+            case LogEvent.PARTIAL_UPDATE_ROWS_EVENT: {
+                RowsLogEvent event = new UpdateRowsLogEvent(header, buffer, descriptionEvent, true);
+                /* updating position in context */
+                logPosition.position = header.getLogPos();
+                event.fillTable(context);
+                header.putGtid(context.getGtidSet(), gtidLogEvent);
+                return event;
+            }
             case LogEvent.GTID_LOG_EVENT:
             case LogEvent.ANONYMOUS_GTID_LOG_EVENT: {
                 GtidLogEvent event = new GtidLogEvent(header, buffer, descriptionEvent);
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogEvent.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogEvent.java
index 8a5957d0..41208516 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogEvent.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/LogEvent.java
@@ -169,9 +169,15 @@ public abstract class LogEvent {
     /* Prepared XA transaction terminal event similar to Xid */
     public static final int    XA_PREPARE_LOG_EVENT                     = 38;
 
+    /**
+     * Extension of UPDATE_ROWS_EVENT, allowing partial values according to
+     * binlog_row_value_options.
+     */
+    public static final int    PARTIAL_UPDATE_ROWS_EVENT                = 39;
+
     // mariaDb 5.5.34
     /* New MySQL/Sun events are to be added right above this comment */
-    public static final int    MYSQL_EVENTS_END                         = 39;
+    public static final int    MYSQL_EVENTS_END                         = 49;
 
     public static final int    MARIA_EVENTS_BEGIN                       = 160;
     /* New Maria event numbers start from here */
@@ -361,6 +367,8 @@ public abstract class LogEvent {
                 return "Anonymous_Gtid";
             case PREVIOUS_GTIDS_LOG_EVENT:
                 return "Previous_gtids";
+            case PARTIAL_UPDATE_ROWS_EVENT:
+                return "Update_rows_partial";
             default:
                 return "Unknown"; /* impossible */
         }
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/FormatDescriptionLogEvent.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/FormatDescriptionLogEvent.java
index 8492e2d7..a14b9111 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/FormatDescriptionLogEvent.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/FormatDescriptionLogEvent.java
@@ -211,6 +211,7 @@ public final class FormatDescriptionLogEvent extends StartLogEventV3 {
                 postHeaderLen[TRANSACTION_CONTEXT_EVENT - 1] = TRANSACTION_CONTEXT_HEADER_LEN;
                 postHeaderLen[VIEW_CHANGE_EVENT - 1] = VIEW_CHANGE_HEADER_LEN;
                 postHeaderLen[XA_PREPARE_LOG_EVENT - 1] = XA_PREPARE_HEADER_LEN;
+                postHeaderLen[PARTIAL_UPDATE_ROWS_EVENT - 1] = ROWS_HEADER_LEN_V2;
 
                 // mariadb 10
                 postHeaderLen[ANNOTATE_ROWS_EVENT - 1] = ANNOTATE_ROWS_HEADER_LEN;
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/QueryLogEvent.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/QueryLogEvent.java
index f6e0459c..c732da99 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/QueryLogEvent.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/QueryLogEvent.java
@@ -1,6 +1,7 @@
 package com.taobao.tddl.dbsync.binlog.event;
 
 import java.io.IOException;
+import java.math.BigInteger;
 import java.nio.charset.Charset;
 
 import com.taobao.tddl.dbsync.binlog.CharsetConversion;
@@ -285,12 +286,12 @@ public class QueryLogEvent extends LogEvent {
                                                                   * type,
                                                                   * sql_mode
                                                                   */
-                                                         + 1 + 1 + 255 /*
-                                                                        * type,
-                                                                        * length
-                                                                        * ,
-                                                                        * catalog
-                                                                        */
+                                                         + 1 + 1 + 255/*
+                                                                       * type,
+                                                                       * length
+                                                                       * ,
+                                                                       * catalog
+                                                                       */
                                                          + 1 + 4 /*
                                                                   * type,
                                                                   * auto_increment
@@ -330,14 +331,32 @@ public class QueryLogEvent extends LogEvent {
                                                           * MariaDb type,
                                                           * sec_part of NOW()
                                                           */
-                                                         + 1 + (MAX_DBS_IN_EVENT_MTS * (1 + NAME_LEN)) + 3 + 1 + 32 * 3
-                                                         + 1 + 60/*
-                                                                  * type ,
-                                                                  * user_len ,
-                                                                  * user ,
-                                                                  * host_len ,
-                                                                  * host
-                                                                  */);
+                                                         + 1 + (MAX_DBS_IN_EVENT_MTS * (1 + NAME_LEN)) + 3 /*
+                                                                                                            * type
+                                                                                                            * ,
+                                                                                                            * microseconds
+                                                                                                            */+ 1 + 32
+                                                         * 3 + 1 + 60/*
+                                                                      * type ,
+                                                                      * user_len
+                                                                      * , user ,
+                                                                      * host_len
+                                                                      * , host
+                                                                      */)
+                                                        + 1 + 1 /*
+                                                                 * type,
+                                                                 * explicit_def
+                                                                 * ..ts
+                                                                 */+ 1 + 8 /*
+                                                                            * type,
+                                                                            * xid
+                                                                            * of
+                                                                            * DDL
+                                                                            */+ 1 + 2 /*
+                                                                                       * type
+                                                                                       * ,
+                                                                                       * default_collation_for_utf8mb4_number
+                                                                                       */+ 1 /* sql_require_primary_key */;
     /**
      * Fixed data part:
      * <ul>
@@ -394,7 +413,7 @@ public class QueryLogEvent extends LogEvent {
     // inspection by the DBA
     private final long      execTime;
     private final int       errorCode;
-    private final long      sessionId;                                                            /* thread_id */
+    private final long      sessionId;                                                                                     /* thread_id */
 
     /**
      * 'flags2' is a second set of flags (on top of those in Log_event), for
@@ -412,6 +431,8 @@ public class QueryLogEvent extends LogEvent {
     private int             clientCharset             = -1;
     private int             clientCollation           = -1;
     private int             serverCollation           = -1;
+    private int             tvSec                     = -1;
+    private BigInteger      ddlXid                    = BigInteger.valueOf(-1L);
     private String          charsetName;
 
     private String          timezone;
@@ -562,6 +583,21 @@ public class QueryLogEvent extends LogEvent {
      */
     public static final int Q_EXPLICIT_DEFAULTS_FOR_TIMESTAMP = 16;
 
+    /**
+     * The variable carries xid info of 2pc-aware (recoverable) DDL queries.
+     */
+    public static final int Q_DDL_LOGGED_WITH_XID             = 17;
+    /**
+     * This variable stores the default collation for the utf8mb4 character set.
+     * Used to support cross-version replication.
+     */
+    public static final int Q_DEFAULT_COLLATION_FOR_UTF8MB4   = 18;
+
+    /**
+     * Replicate sql_require_primary_key.
+     */
+    public static final int Q_SQL_REQUIRE_PRIMARY_KEY         = 19;
+
     /**
      * FROM MariaDB 5.5.34
      */
@@ -625,7 +661,7 @@ public class QueryLogEvent extends LogEvent {
                         break;
                     case Q_MICROSECONDS:
                         // when.tv_usec= uint3korr(pos);
-                        buffer.forward(3);
+                        tvSec = buffer.getInt24();
                         break;
                     case Q_UPDATED_DB_NAMES:
                         int mtsAccessedDbs = buffer.getUint8();
@@ -646,6 +682,19 @@ public class QueryLogEvent extends LogEvent {
                         }
                         break;
                     case Q_EXPLICIT_DEFAULTS_FOR_TIMESTAMP:
+                        // thd->variables.explicit_defaults_for_timestamp
+                        buffer.forward(1);
+                        break;
+                    case Q_DDL_LOGGED_WITH_XID:
+                        ddlXid = buffer.getUlong64();
+                        break;
+                    case Q_DEFAULT_COLLATION_FOR_UTF8MB4:
+                        // int2store(start,
+                        // default_collation_for_utf8mb4_number);
+                        buffer.forward(2);
+                        break;
+                    case Q_SQL_REQUIRE_PRIMARY_KEY:
+                        // *start++ = thd->variables.sql_require_primary_key;
                         buffer.forward(1);
                         break;
                     case Q_HRNOW:
@@ -657,8 +706,10 @@ public class QueryLogEvent extends LogEvent {
                          * That's why you must write status vars in growing
                          * order of code
                          */
-                        if (logger.isDebugEnabled()) logger.debug("Query_log_event has unknown status vars (first has code: "
-                                                                  + code + "), skipping the rest of them");
+                        if (logger.isDebugEnabled()) {
+                            logger.debug("Query_log_event has unknown status vars (first has code: " + code
+                                         + "), skipping the rest of them");
+                        }
                         break; // Break loop
                 }
             }
@@ -695,6 +746,12 @@ public class QueryLogEvent extends LogEvent {
                 return "Q_UPDATED_DB_NAMES";
             case Q_MICROSECONDS:
                 return "Q_MICROSECONDS";
+            case Q_DDL_LOGGED_WITH_XID:
+                return "Q_DDL_LOGGED_WITH_XID";
+            case Q_DEFAULT_COLLATION_FOR_UTF8MB4:
+                return "Q_DEFAULT_COLLATION_FOR_UTF8MB4";
+            case Q_SQL_REQUIRE_PRIMARY_KEY:
+                return "Q_SQL_REQUIRE_PRIMARY_KEY";
         }
         return "CODE#" + code;
     }
@@ -777,6 +834,14 @@ public class QueryLogEvent extends LogEvent {
         return serverCollation;
     }
 
+    public int getTvSec() {
+        return tvSec;
+    }
+
+    public BigInteger getDdlXid() {
+        return ddlXid;
+    }
+
     /**
      * Returns the sql_mode value.
      * <p>
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/RowsLogBuffer.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/RowsLogBuffer.java
index 8cd57332..013494d5 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/RowsLogBuffer.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/RowsLogBuffer.java
@@ -10,6 +10,7 @@ import org.apache.commons.logging.LogFactory;
 
 import com.taobao.tddl.dbsync.binlog.JsonConversion;
 import com.taobao.tddl.dbsync.binlog.JsonConversion.Json_Value;
+import com.taobao.tddl.dbsync.binlog.JsonDiffConversion;
 import com.taobao.tddl.dbsync.binlog.LogBuffer;
 import com.taobao.tddl.dbsync.binlog.LogEvent;
 
@@ -31,22 +32,33 @@ public final class RowsLogBuffer {
 
     private final LogBuffer    buffer;
     private final int          columnLen;
+    private final int          jsonColumnCount;
     private final String       charsetName;
-    // private Calendar cal;
 
     private final BitSet       nullBits;
     private int                nullBitIndex;
 
+    // Read value_options if this is AI for PARTIAL_UPDATE_ROWS_EVENT
+    private final boolean      partial;
+    private final BitSet       partialBits;
+
     private boolean            fNull;
     private int                javaType;
     private int                length;
     private Serializable       value;
 
-    public RowsLogBuffer(LogBuffer buffer, final int columnLen, String charsetName){
+    public RowsLogBuffer(LogBuffer buffer, final int columnLen, String charsetName, int jsonColumnCount, boolean partial){
         this.buffer = buffer;
         this.columnLen = columnLen;
         this.charsetName = charsetName;
+        this.partial = partial;
+        this.jsonColumnCount = jsonColumnCount;
         this.nullBits = new BitSet(columnLen);
+        this.partialBits = new BitSet(1);
+    }
+
+    public final boolean nextOneRow(BitSet columns) {
+        return nextOneRow(columns, false);
     }
 
     /**
@@ -55,18 +67,30 @@ public final class RowsLogBuffer {
      * @see mysql-5.1.60/sql/log_event.cc -
      * Rows_log_event::print_verbose_one_row
      */
-    public final boolean nextOneRow(BitSet columns) {
+    public final boolean nextOneRow(BitSet columns, boolean after) {
         final boolean hasOneRow = buffer.hasRemaining();
 
         if (hasOneRow) {
             int column = 0;
 
             for (int i = 0; i < columnLen; i++)
-                if (columns.get(i)) column++;
+                if (columns.get(i)) {
+                    column++;
+                }
 
+            if (after && partial) {
+                partialBits.clear();
+                long valueOptions = buffer.getPackedLong();
+                int PARTIAL_JSON_UPDATES = 1;
+                if ((valueOptions & PARTIAL_JSON_UPDATES) != 0) {
+                    partialBits.set(1);
+                    buffer.forward((jsonColumnCount + 7) / 8);
+                }
+            }
             nullBitIndex = 0;
             nullBits.clear();
             buffer.fillBitmap(nullBits, column);
+
         }
         return hasOneRow;
     }
@@ -77,8 +101,8 @@ public final class RowsLogBuffer {
      * @see mysql-5.1.60/sql/log_event.cc -
      * Rows_log_event::print_verbose_one_row
      */
-    public final Serializable nextValue(final int type, final int meta) {
-        return nextValue(type, meta, false);
+    public final Serializable nextValue(final String columName, final int columnIndex, final int type, final int meta) {
+        return nextValue(columName, columnIndex, type, meta, false);
     }
 
     /**
@@ -87,7 +111,8 @@ public final class RowsLogBuffer {
      * @see mysql-5.1.60/sql/log_event.cc -
      * Rows_log_event::print_verbose_one_row
      */
-    public final Serializable nextValue(final int type, final int meta, boolean isBinary) {
+    public final Serializable nextValue(final String columName, final int columnIndex, final int type, final int meta,
+                                        boolean isBinary) {
         fNull = nullBits.get(nullBitIndex++);
 
         if (fNull) {
@@ -97,7 +122,7 @@ public final class RowsLogBuffer {
             return null;
         } else {
             // Extracting field value from packed buffer.
-            return fetchValue(type, meta, isBinary);
+            return fetchValue(columName, columnIndex, type, meta, isBinary);
         }
     }
 
@@ -248,7 +273,7 @@ public final class RowsLogBuffer {
      * 
      * @see mysql-5.1.60/sql/log_event.cc - log_event_print_value
      */
-    final Serializable fetchValue(int type, final int meta, boolean isBinary) {
+    final Serializable fetchValue(String columnName, int columnIndex, int type, final int meta, boolean isBinary) {
         int len = 0;
 
         if (type == LogEvent.MYSQL_TYPE_STRING) {
@@ -610,7 +635,7 @@ public final class RowsLogBuffer {
                     // (u32 % 10000) / 100,
                     // u32 % 100);
 
-                    StringBuilder builder = new StringBuilder(12);
+                    StringBuilder builder = new StringBuilder(17);
                     if (i32 < 0) {
                         builder.append('-');
                     }
@@ -1041,17 +1066,34 @@ public final class RowsLogBuffer {
                     default:
                         throw new IllegalArgumentException("!! Unknown JSON packlen = " + meta);
                 }
-                if (0 == len) {
-                    // fixed issue #1 by lava, json column of zero length has no
-                    // value, value parsing should be skipped
-                    value = "";
-                } else {
+
+                if (partialBits.get(1)) {
+                    // print_json_diff
                     int position = buffer.position();
-                    Json_Value jsonValue = JsonConversion.parse_value(buffer.getUint8(), buffer, len - 1, charsetName);
-                    StringBuilder builder = new StringBuilder();
-                    jsonValue.toJsonString(builder, charsetName);
+                    StringBuilder builder = JsonDiffConversion.print_json_diff(buffer,
+                        len,
+                        columnName,
+                        columnIndex,
+                        charsetName);
                     value = builder.toString();
                     buffer.position(position + len);
+                } else {
+                    if (0 == len) {
+                        // fixed issue #1 by lava, json column of zero length
+                        // has no
+                        // value, value parsing should be skipped
+                        value = "";
+                    } else {
+                        int position = buffer.position();
+                        Json_Value jsonValue = JsonConversion.parse_value(buffer.getUint8(),
+                            buffer,
+                            len - 1,
+                            charsetName);
+                        StringBuilder builder = new StringBuilder();
+                        jsonValue.toJsonString(builder, charsetName);
+                        value = builder.toString();
+                        buffer.position(position + len);
+                    }
                 }
                 javaType = Types.VARCHAR;
                 length = len;
@@ -1120,7 +1162,7 @@ public final class RowsLogBuffer {
         return length;
     }
 
-    private String usecondsToStr(int frac, int meta) {
+    public static String usecondsToStr(int frac, int meta) {
         String sec = String.valueOf(frac);
         if (meta > 6) {
             throw new IllegalArgumentException("unknow useconds meta : " + meta);
@@ -1139,7 +1181,7 @@ public final class RowsLogBuffer {
         return sec.substring(0, meta);
     }
 
-    private void appendNumber4(StringBuilder builder, int d) {
+    public static void appendNumber4(StringBuilder builder, int d) {
         if (d >= 1000) {
             builder.append(digits[d / 1000])
                 .append(digits[(d / 100) % 10])
@@ -1151,7 +1193,7 @@ public final class RowsLogBuffer {
         }
     }
 
-    private void appendNumber3(StringBuilder builder, int d) {
+    public static void appendNumber3(StringBuilder builder, int d) {
         if (d >= 100) {
             builder.append(digits[d / 100]).append(digits[(d / 10) % 10]).append(digits[d % 10]);
         } else {
@@ -1160,7 +1202,7 @@ public final class RowsLogBuffer {
         }
     }
 
-    private void appendNumber2(StringBuilder builder, int d) {
+    public static void appendNumber2(StringBuilder builder, int d) {
         if (d >= 10) {
             builder.append(digits[(d / 10) % 10]).append(digits[d % 10]);
         } else {
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/RowsLogEvent.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/RowsLogEvent.java
index f2ce79b0..f11b0734 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/RowsLogEvent.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/RowsLogEvent.java
@@ -5,6 +5,7 @@ import java.util.BitSet;
 import com.taobao.tddl.dbsync.binlog.LogBuffer;
 import com.taobao.tddl.dbsync.binlog.LogContext;
 import com.taobao.tddl.dbsync.binlog.LogEvent;
+import com.taobao.tddl.dbsync.binlog.event.TableMapLogEvent.ColumnInfo;
 
 /**
  * Common base class for all row-containing log events.
@@ -61,6 +62,7 @@ public abstract class RowsLogEvent extends LogEvent {
 
     /** Bitmap denoting columns available */
     protected final int      columnLen;
+    protected final boolean  partial;
     protected final BitSet   columns;
 
     /**
@@ -71,6 +73,8 @@ public abstract class RowsLogEvent extends LogEvent {
      */
     protected final BitSet   changeColumns;
 
+    protected int            jsonColumnCount         = 0;
+
     /** XXX: Don't handle buffer in another thread. */
     private final LogBuffer  rowsBuf;                           /*
                                                                   * The rows in
@@ -109,6 +113,10 @@ public abstract class RowsLogEvent extends LogEvent {
     public static final int  RW_V_EXTRAINFO_TAG      = 0;
 
     public RowsLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent){
+        this(header, buffer, descriptionEvent, false);
+    }
+
+    public RowsLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent, boolean partial){
         super(header);
 
         final int commonHeaderLen = descriptionEvent.commonHeaderLen;
@@ -153,9 +161,11 @@ public abstract class RowsLogEvent extends LogEvent {
 
         buffer.position(commonHeaderLen + postHeaderLen + headerLen);
         columnLen = (int) buffer.getPackedLong();
+        this.partial = partial;
         columns = buffer.getBitmap(columnLen);
 
-        if (header.type == UPDATE_ROWS_EVENT_V1 || header.type == UPDATE_ROWS_EVENT) {
+        if (header.type == UPDATE_ROWS_EVENT_V1 || header.type == UPDATE_ROWS_EVENT
+            || header.type == PARTIAL_UPDATE_ROWS_EVENT) {
             changeColumns = buffer.getBitmap(columnLen);
         } else {
             changeColumns = columns;
@@ -175,6 +185,17 @@ public abstract class RowsLogEvent extends LogEvent {
             // delete original table map events stored in the map).
             context.clearAllTables();
         }
+
+        int jsonColumnCount = 0;
+        int columnCnt = table.getColumnCnt();
+        ColumnInfo[] columnInfo = table.getColumnInfo();
+        for (int i = 0; i < columnCnt; i++) {
+            ColumnInfo info = columnInfo[i];
+            if (info.type == LogEvent.MYSQL_TYPE_JSON) {
+                jsonColumnCount++;
+            }
+        }
+        this.jsonColumnCount = jsonColumnCount;
     }
 
     public final long getTableId() {
@@ -194,7 +215,7 @@ public abstract class RowsLogEvent extends LogEvent {
     }
 
     public final RowsLogBuffer getRowsBuf(String charsetName) {
-        return new RowsLogBuffer(rowsBuf, columnLen, charsetName);
+        return new RowsLogBuffer(rowsBuf, columnLen, charsetName, jsonColumnCount, partial);
     }
 
     public final int getFlags(final int flags) {
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/TableMapLogEvent.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/TableMapLogEvent.java
index e6550b27..18201ea9 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/TableMapLogEvent.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/TableMapLogEvent.java
@@ -1,6 +1,8 @@
 package com.taobao.tddl.dbsync.binlog.event;
 
+import java.util.ArrayList;
 import java.util.BitSet;
+import java.util.List;
 
 import com.taobao.tddl.dbsync.binlog.LogBuffer;
 import com.taobao.tddl.dbsync.binlog.LogEvent;
@@ -88,6 +90,17 @@ import com.taobao.tddl.dbsync.binlog.LogEvent;
  * first byte, the ninth is in the least significant bit of the second byte, and
  * so on.</td>
  * </tr>
+ * <tr>
+ * <td>optional metadata fields</td>
+ * <td>optional metadata fields are stored in Type, Length, Value(TLV) format.
+ * Type takes 1 byte. Length is a packed integer value. Values takes Length
+ * bytes.</td>
+ * <td>There are some optional metadata defined. They are listed in the table
+ * 
+ * @ref Table_table_map_event_optional_metadata. Optional metadata fields follow
+ * null_bits. Whether binlogging an optional metadata is decided by the server.
+ * The order is not defined, so they can be binlogged in any order. </td>
+ * </tr>
  * </table>
  * The table below lists all column types, along with the numerical identifier
  * for it and the size and interpretation of meta-data used to describe the
@@ -284,7 +297,6 @@ import com.taobao.tddl.dbsync.binlog.LogEvent;
  * of the geometry: 1, 2, 3, or 4.</td>
  * </tr>
  * </table>
- * 
  * @author <a href="mailto:changyuan.lh@taobao.com">Changyuan.lh</a>
  * @version 1.0
  */
@@ -322,20 +334,63 @@ public final class TableMapLogEvent extends LogEvent {
      */
     public static final class ColumnInfo {
 
-        public int type;
-        public int meta;
+        public int          type;
+        public int          meta;
+        public String       name;
+        public boolean      unsigned;
+        public boolean      pk;
+        public List<String> set_enum_values;
+        public int          charset;        // 可以通过CharsetUtil进行转化
+        public int          geoType;
+        public boolean      nullable;
+
+        @Override
+        public String toString() {
+            return "ColumnInfo [type=" + type + ", meta=" + meta + ", name=" + name + ", unsigned=" + unsigned
+                   + ", pk=" + pk + ", set_enum_values=" + set_enum_values + ", charset=" + charset + ", geoType="
+                   + geoType + ", nullable=" + nullable + "]";
+        }
     }
 
     protected final int          columnCnt;
-    protected final ColumnInfo[] columnInfo;         // buffer for field
-                                                      // metadata
+    protected final ColumnInfo[] columnInfo;                     // buffer
+                                                                  // for
+                                                                  // field
+                                                                  // metadata
 
     protected final long         tableId;
     protected BitSet             nullBits;
 
     /** TM = "Table Map" */
-    public static final int      TM_MAPID_OFFSET = 0;
-    public static final int      TM_FLAGS_OFFSET = 6;
+    public static final int      TM_MAPID_OFFSET         = 0;
+    public static final int      TM_FLAGS_OFFSET         = 6;
+
+    // UNSIGNED flag of numeric columns
+    public static final int      SIGNEDNESS              = 1;
+    // Default character set of string columns
+    public static final int      DEFAULT_CHARSET         = 2;
+    // Character set of string columns
+    public static final int      COLUMN_CHARSET          = 3;
+    public static final int      COLUMN_NAME             = 4;
+    // String value of SET columns
+    public static final int      SET_STR_VALUE           = 5;
+    // String value of ENUM columns
+    public static final int      ENUM_STR_VALUE          = 6;
+    // Real type of geometry columns
+    public static final int      GEOMETRY_TYPE           = 7;
+    // Primary key without prefix
+    public static final int      SIMPLE_PRIMARY_KEY      = 8;
+    // Primary key with prefix
+    public static final int      PRIMARY_KEY_WITH_PREFIX = 9;
+
+    private int                  default_charset;
+    private boolean              existOptionalMetaData   = false;
+
+    private static final class Pair {
+
+        public int col_index;
+        public int col_charset;
+    }
 
     /**
      * Constructor used by slave to read the event from the binary log.
@@ -379,7 +434,91 @@ public final class TableMapLogEvent extends LogEvent {
             final int fieldSize = (int) buffer.getPackedLong();
             decodeFields(buffer, fieldSize);
             nullBits = buffer.getBitmap(columnCnt);
+
+            for (int i = 0; i < columnCnt; i++) {
+                if (nullBits.get(i)) {
+                    columnInfo[i].nullable = true;
+                }
+            }
+            /*
+             * After null_bits field, there are some new fields for extra
+             * metadata.
+             */
+            existOptionalMetaData = false;
+            List<TableMapLogEvent.Pair> defaultCharsetPairs = null;
+            List<Integer> columnCharsets = null;
+            while (buffer.hasRemaining()) {
+                // optional metadata fields
+                int type = buffer.getUint8();
+                int len = (int) buffer.getPackedLong();
+
+                switch (type) {
+                    case SIGNEDNESS:
+                        parse_signedness(buffer, len);
+                        break;
+                    case DEFAULT_CHARSET:
+                        defaultCharsetPairs = parse_default_charset(buffer, len);
+                        break;
+                    case COLUMN_CHARSET:
+                        columnCharsets = parse_column_charset(buffer, len);
+                        break;
+                    case COLUMN_NAME:
+                        // set @@global.binlog_row_metadata='FULL'
+                        // 主要是补充列名相关信息
+                        existOptionalMetaData = true;
+                        parse_column_name(buffer, len);
+                        break;
+                    case SET_STR_VALUE:
+                        parse_set_str_value(buffer, len, true);
+                        break;
+                    case ENUM_STR_VALUE:
+                        parse_set_str_value(buffer, len, false);
+                        break;
+                    case GEOMETRY_TYPE:
+                        parse_geometry_type(buffer, len);
+                        break;
+                    case SIMPLE_PRIMARY_KEY:
+                        parse_simple_pk(buffer, len);
+                        break;
+                    case PRIMARY_KEY_WITH_PREFIX:
+                        parse_pk_with_prefix(buffer, len);
+                        break;
+                    default:
+                        throw new IllegalArgumentException("unknow type : " + type);
+                }
+            }
+
+            if (existOptionalMetaData) {
+                int index = 0;
+                int char_col_index = 0;
+                for (int i = 0; i < columnCnt; i++) {
+                    int cs = -1;
+                    int type = getRealType(columnInfo[i].type, columnInfo[i].meta);
+                    if (is_character_type(type)) {
+                        if (defaultCharsetPairs != null && !defaultCharsetPairs.isEmpty()) {
+                            if (index < defaultCharsetPairs.size()
+                                && char_col_index == defaultCharsetPairs.get(index).col_index) {
+                                cs = defaultCharsetPairs.get(index).col_charset;
+                                index++;
+                            } else {
+                                cs = default_charset;
+                            }
+
+                            char_col_index++;
+                        } else if (columnCharsets != null) {
+                            cs = columnCharsets.get(index);
+                            index++;
+                        }
+
+                        columnInfo[i].charset = cs;
+                    }
+                }
+            }
         }
+
+        // for (int i = 0; i < columnCnt; i++) {
+        // System.out.println(columnInfo[i]);
+        // }
     }
 
     /**
@@ -459,6 +598,192 @@ public final class TableMapLogEvent extends LogEvent {
         buffer.limit(limit);
     }
 
+    private void parse_signedness(LogBuffer buffer, int length) {
+        // stores the signedness flags extracted from field
+        List<Boolean> datas = new ArrayList<Boolean>();
+        for (int i = 0; i < length; i++) {
+            int ut = buffer.getUint8();
+            for (int c = 0x80; c != 0; c >>= 1) {
+                datas.add((ut & c) > 0);
+            }
+        }
+
+        int index = 0;
+        for (int i = 0; i < columnCnt; i++) {
+            if (is_numeric_type(columnInfo[i].type)) {
+                columnInfo[i].unsigned = datas.get(index);
+                index++;
+            }
+        }
+    }
+
+    private List<TableMapLogEvent.Pair> parse_default_charset(LogBuffer buffer, int length) {
+        // stores collation numbers extracted from field.
+        int limit = buffer.position() + length;
+        this.default_charset = (int) buffer.getPackedLong();
+        List<TableMapLogEvent.Pair> datas = new ArrayList<TableMapLogEvent.Pair>();
+        while (buffer.hasRemaining() && buffer.position() < limit) {
+            int col_index = (int) buffer.getPackedLong();
+            int col_charset = (int) buffer.getPackedLong();
+
+            Pair pair = new Pair();
+            pair.col_index = col_index;
+            pair.col_charset = col_charset;
+            datas.add(pair);
+        }
+
+        return datas;
+    }
+
+    private List<Integer> parse_column_charset(LogBuffer buffer, int length) {
+        // stores collation numbers extracted from field.
+        int limit = buffer.position() + length;
+        List<Integer> datas = new ArrayList<Integer>();
+        while (buffer.hasRemaining() && buffer.position() < limit) {
+            int col_charset = (int) buffer.getPackedLong();
+            datas.add(col_charset);
+        }
+
+        return datas;
+    }
+
+    private void parse_column_name(LogBuffer buffer, int length) {
+        // stores column names extracted from field
+        int limit = buffer.position() + length;
+        int index = 0;
+        while (buffer.hasRemaining() && buffer.position() < limit) {
+            int len = (int) buffer.getPackedLong();
+            columnInfo[index++].name = buffer.getFixString(len);
+        }
+    }
+
+    private void parse_set_str_value(LogBuffer buffer, int length, boolean set) {
+        // stores SET/ENUM column's string values extracted from
+        // field. Each SET/ENUM column's string values are stored
+        // into a string separate vector. All of them are stored
+        // in 'vec'.
+        int limit = buffer.position() + length;
+        List<List<String>> datas = new ArrayList<List<String>>();
+        while (buffer.hasRemaining() && buffer.position() < limit) {
+            int count = (int) buffer.getPackedLong();
+            List<String> data = new ArrayList<String>(count);
+            for (int i = 0; i < count; i++) {
+                int len1 = (int) buffer.getPackedLong();
+                data.add(buffer.getFixString(len1));
+            }
+
+            datas.add(data);
+        }
+
+        int index = 0;
+        for (int i = 0; i < columnCnt; i++) {
+            if (set && getRealType(columnInfo[i].type, columnInfo[i].meta) == LogEvent.MYSQL_TYPE_SET) {
+                columnInfo[i].set_enum_values = datas.get(index);
+                index++;
+            }
+
+            if (!set && getRealType(columnInfo[i].type, columnInfo[i].meta) == LogEvent.MYSQL_TYPE_ENUM) {
+                columnInfo[i].set_enum_values = datas.get(index);
+                index++;
+            }
+        }
+    }
+
+    private void parse_geometry_type(LogBuffer buffer, int length) {
+        // stores geometry column's types extracted from field.
+        int limit = buffer.position() + length;
+
+        List<Integer> datas = new ArrayList<Integer>();
+        while (buffer.hasRemaining() && buffer.position() < limit) {
+            int col_type = (int) buffer.getPackedLong();
+            datas.add(col_type);
+        }
+
+        int index = 0;
+        for (int i = 0; i < columnCnt; i++) {
+            if (columnInfo[i].type == LogEvent.MYSQL_TYPE_GEOMETRY) {
+                columnInfo[i].geoType = datas.get(index);
+                index++;
+            }
+        }
+    }
+
+    private void parse_simple_pk(LogBuffer buffer, int length) {
+        // stores primary key's column information extracted from
+        // field. Each column has an index and a prefix which are
+        // stored as a unit_pair. prefix is always 0 for
+        // SIMPLE_PRIMARY_KEY field.
+
+        int limit = buffer.position() + length;
+        while (buffer.hasRemaining() && buffer.position() < limit) {
+            int col_index = (int) buffer.getPackedLong();
+            columnInfo[col_index].pk = true;
+        }
+    }
+
+    private void parse_pk_with_prefix(LogBuffer buffer, int length) {
+        // stores primary key's column information extracted from
+        // field. Each column has an index and a prefix which are
+        // stored as a unit_pair.
+        int limit = buffer.position() + length;
+        while (buffer.hasRemaining() && buffer.position() < limit) {
+            int col_index = (int) buffer.getPackedLong();
+            // prefix length, 比如 char(32)
+            @SuppressWarnings("unused")
+            int col_prefix = (int) buffer.getPackedLong();
+            columnInfo[col_index].pk = true;
+        }
+    }
+
+    private boolean is_numeric_type(int type) {
+        switch (type) {
+            case MYSQL_TYPE_TINY:
+            case MYSQL_TYPE_SHORT:
+            case MYSQL_TYPE_INT24:
+            case MYSQL_TYPE_LONG:
+            case MYSQL_TYPE_LONGLONG:
+            case MYSQL_TYPE_NEWDECIMAL:
+            case MYSQL_TYPE_FLOAT:
+            case MYSQL_TYPE_DOUBLE:
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    private boolean is_character_type(int type) {
+        switch (type) {
+            case MYSQL_TYPE_STRING:
+            case MYSQL_TYPE_VAR_STRING:
+            case MYSQL_TYPE_VARCHAR:
+            case MYSQL_TYPE_BLOB:
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    private int getRealType(int type, int meta) {
+        if (type == LogEvent.MYSQL_TYPE_STRING) {
+            if (meta >= 256) {
+                int byte0 = meta >> 8;
+                if ((byte0 & 0x30) != 0x30) {
+                    /* a long CHAR() field: see #37426 */
+                    type = byte0 | 0x30;
+                } else {
+                    switch (byte0) {
+                        case LogEvent.MYSQL_TYPE_SET:
+                        case LogEvent.MYSQL_TYPE_ENUM:
+                        case LogEvent.MYSQL_TYPE_STRING:
+                            type = byte0;
+                    }
+                }
+            }
+        }
+
+        return type;
+    }
+
     public final String getDbName() {
         return dbname;
     }
@@ -478,4 +803,13 @@ public final class TableMapLogEvent extends LogEvent {
     public final long getTableId() {
         return tableId;
     }
+
+    public boolean isExistOptionalMetaData() {
+        return existOptionalMetaData;
+    }
+
+    public void setExistOptionalMetaData(boolean existOptional) {
+        this.existOptionalMetaData = existOptional;
+    }
+
 }
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/UpdateRowsLogEvent.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/UpdateRowsLogEvent.java
index f5e5866e..b604e04d 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/UpdateRowsLogEvent.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/UpdateRowsLogEvent.java
@@ -14,6 +14,11 @@ import com.taobao.tddl.dbsync.binlog.LogBuffer;
 public final class UpdateRowsLogEvent extends RowsLogEvent {
 
     public UpdateRowsLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent){
-        super(header, buffer, descriptionEvent);
+        super(header, buffer, descriptionEvent, false);
+    }
+
+    public UpdateRowsLogEvent(LogHeader header, LogBuffer buffer, FormatDescriptionLogEvent descriptionEvent,
+                              boolean partial){
+        super(header, buffer, descriptionEvent, partial);
     }
 }
diff --git a/dbsync/src/test/java/com/taobao/tddl/dbsync/binlog/DirectLogFetcherTest.java b/dbsync/src/test/java/com/taobao/tddl/dbsync/binlog/DirectLogFetcherTest.java
index c48082df..3648da68 100644
--- a/dbsync/src/test/java/com/taobao/tddl/dbsync/binlog/DirectLogFetcherTest.java
+++ b/dbsync/src/test/java/com/taobao/tddl/dbsync/binlog/DirectLogFetcherTest.java
@@ -45,6 +45,7 @@ public class DirectLogFetcherTest extends BaseLogFetcherTest {
                         parseRowsEvent((WriteRowsLogEvent) event);
                         break;
                     case LogEvent.UPDATE_ROWS_EVENT_V1:
+                    case LogEvent.PARTIAL_UPDATE_ROWS_EVENT:
                     case LogEvent.UPDATE_ROWS_EVENT:
                         parseRowsEvent((UpdateRowsLogEvent) event);
                         break;
diff --git a/dbsync/src/test/java/com/taobao/tddl/dbsync/binlog/FileLogFetcherTest.java b/dbsync/src/test/java/com/taobao/tddl/dbsync/binlog/FileLogFetcherTest.java
index 7673f71b..aada3de8 100644
--- a/dbsync/src/test/java/com/taobao/tddl/dbsync/binlog/FileLogFetcherTest.java
+++ b/dbsync/src/test/java/com/taobao/tddl/dbsync/binlog/FileLogFetcherTest.java
@@ -53,6 +53,7 @@ public class FileLogFetcherTest extends BaseLogFetcherTest {
                             parseRowsEvent((WriteRowsLogEvent) event);
                             break;
                         case LogEvent.UPDATE_ROWS_EVENT_V1:
+                        case LogEvent.PARTIAL_UPDATE_ROWS_EVENT:
                         case LogEvent.UPDATE_ROWS_EVENT:
                             parseRowsEvent((UpdateRowsLogEvent) event);
                             break;
diff --git a/driver/src/main/java/com/alibaba/otter/canal/parse/driver/mysql/socket/BioSocketChannel.java b/driver/src/main/java/com/alibaba/otter/canal/parse/driver/mysql/socket/BioSocketChannel.java
index 8de2acfd..dfa2783f 100644
--- a/driver/src/main/java/com/alibaba/otter/canal/parse/driver/mysql/socket/BioSocketChannel.java
+++ b/driver/src/main/java/com/alibaba/otter/canal/parse/driver/mysql/socket/BioSocketChannel.java
@@ -88,8 +88,9 @@ public class BioSocketChannel implements SocketChannel {
             }
         }
         if (remain > 0 && accTimeout >= timeout) {
-            throw new SocketTimeoutException("Timeout occurred, failed to read " + readSize + " bytes in " + timeout
-                                             + " milliseconds.");
+            throw new SocketTimeoutException("Timeout occurred, failed to read total " + readSize + " bytes in "
+                                             + timeout + " milliseconds, actual read only " + (readSize - remain)
+                                             + " bytes");
         }
         return data;
     }
@@ -120,8 +121,8 @@ public class BioSocketChannel implements SocketChannel {
         }
 
         if (n < len && accTimeout >= timeout) {
-            throw new SocketTimeoutException("Timeout occurred, failed to read " + len + " bytes in " + timeout
-                                             + " milliseconds.");
+            throw new SocketTimeoutException("Timeout occurred, failed to read total " + len + " bytes in " + timeout
+                                             + " milliseconds, actual read only " + n + " bytes");
         }
     }
 
diff --git a/driver/src/main/java/com/alibaba/otter/canal/parse/driver/mysql/utils/CharsetUtil.java b/driver/src/main/java/com/alibaba/otter/canal/parse/driver/mysql/utils/CharsetUtil.java
new file mode 100644
index 00000000..ba98a87f
--- /dev/null
+++ b/driver/src/main/java/com/alibaba/otter/canal/parse/driver/mysql/utils/CharsetUtil.java
@@ -0,0 +1,258 @@
+package com.alibaba.otter.canal.parse.driver.mysql.utils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.commons.lang.StringUtils;
+
+/**
+ * mysql collation转换mapping关系表
+ * 
+ * @author agapple 2018年11月5日 下午1:01:15
+ * @since 1.1.2
+ */
+public class CharsetUtil {
+
+    private static final String[]             INDEX_TO_CHARSET = new String[2048];
+    private static final Map<String, Integer> CHARSET_TO_INDEX = new HashMap<String, Integer>();
+    static {
+        INDEX_TO_CHARSET[1] = "big5";
+        INDEX_TO_CHARSET[84] = "big5";
+
+        INDEX_TO_CHARSET[3] = "dec8";
+        INDEX_TO_CHARSET[69] = "dec8";
+
+        INDEX_TO_CHARSET[4] = "cp850";
+        INDEX_TO_CHARSET[80] = "cp850";
+
+        INDEX_TO_CHARSET[6] = "hp8";
+        INDEX_TO_CHARSET[72] = "hp8";
+
+        INDEX_TO_CHARSET[7] = "koi8r";
+        INDEX_TO_CHARSET[74] = "koi8r";
+
+        INDEX_TO_CHARSET[5] = "latin1";
+        INDEX_TO_CHARSET[8] = "latin1";
+        INDEX_TO_CHARSET[15] = "latin1";
+        INDEX_TO_CHARSET[31] = "latin1";
+        INDEX_TO_CHARSET[47] = "latin1";
+        INDEX_TO_CHARSET[48] = "latin1";
+        INDEX_TO_CHARSET[49] = "latin1";
+        INDEX_TO_CHARSET[94] = "latin1";
+
+        INDEX_TO_CHARSET[9] = "latin2";
+        INDEX_TO_CHARSET[21] = "latin2";
+        INDEX_TO_CHARSET[27] = "latin2";
+        INDEX_TO_CHARSET[77] = "latin2";
+
+        INDEX_TO_CHARSET[10] = "swe7";
+        INDEX_TO_CHARSET[82] = "swe7";
+
+        INDEX_TO_CHARSET[11] = "ascii";
+        INDEX_TO_CHARSET[65] = "ascii";
+
+        INDEX_TO_CHARSET[12] = "ujis";
+        INDEX_TO_CHARSET[91] = "ujis";
+
+        INDEX_TO_CHARSET[13] = "sjis";
+        INDEX_TO_CHARSET[88] = "sjis";
+
+        INDEX_TO_CHARSET[16] = "hebrew";
+        INDEX_TO_CHARSET[71] = "hebrew";
+
+        INDEX_TO_CHARSET[18] = "tis620";
+        INDEX_TO_CHARSET[69] = "tis620";
+
+        INDEX_TO_CHARSET[19] = "euckr";
+        INDEX_TO_CHARSET[85] = "euckr";
+
+        INDEX_TO_CHARSET[22] = "koi8u";
+        INDEX_TO_CHARSET[75] = "koi8u";
+
+        INDEX_TO_CHARSET[24] = "gb2312";
+        INDEX_TO_CHARSET[86] = "gb2312";
+
+        INDEX_TO_CHARSET[25] = "greek";
+        INDEX_TO_CHARSET[70] = "greek";
+
+        INDEX_TO_CHARSET[26] = "cp1250";
+        INDEX_TO_CHARSET[34] = "cp1250";
+        INDEX_TO_CHARSET[44] = "cp1250";
+        INDEX_TO_CHARSET[66] = "cp1250";
+        INDEX_TO_CHARSET[99] = "cp1250";
+
+        INDEX_TO_CHARSET[28] = "gbk";
+        INDEX_TO_CHARSET[87] = "gbk";
+
+        INDEX_TO_CHARSET[30] = "latin5";
+        INDEX_TO_CHARSET[78] = "latin5";
+
+        INDEX_TO_CHARSET[32] = "armscii8";
+        INDEX_TO_CHARSET[64] = "armscii8";
+
+        INDEX_TO_CHARSET[33] = "utf8";
+        INDEX_TO_CHARSET[83] = "utf8";
+        for (int i = 192; i <= 223; i++) {
+            INDEX_TO_CHARSET[i] = "utf8";
+        }
+        for (int i = 336; i <= 337; i++) {
+            INDEX_TO_CHARSET[i] = "utf8";
+        }
+        for (int i = 352; i <= 357; i++) {
+            INDEX_TO_CHARSET[i] = "utf8";
+        }
+        INDEX_TO_CHARSET[368] = "utf8";
+        INDEX_TO_CHARSET[2047] = "utf8";
+
+        INDEX_TO_CHARSET[35] = "ucs2";
+        INDEX_TO_CHARSET[90] = "ucs2";
+        for (int i = 128; i <= 151; i++) {
+            INDEX_TO_CHARSET[i] = "ucs2";
+        }
+        INDEX_TO_CHARSET[159] = "ucs2";
+        for (int i = 358; i <= 360; i++) {
+            INDEX_TO_CHARSET[i] = "ucs2";
+        }
+
+        INDEX_TO_CHARSET[36] = "cp866";
+        INDEX_TO_CHARSET[68] = "cp866";
+
+        INDEX_TO_CHARSET[37] = "keybcs2";
+        INDEX_TO_CHARSET[73] = "keybcs2";
+
+        INDEX_TO_CHARSET[38] = "macce";
+        INDEX_TO_CHARSET[43] = "macce";
+
+        INDEX_TO_CHARSET[39] = "macroman";
+        INDEX_TO_CHARSET[53] = "macroman";
+
+        INDEX_TO_CHARSET[40] = "cp852";
+        INDEX_TO_CHARSET[81] = "cp852";
+
+        INDEX_TO_CHARSET[20] = "latin7";
+        INDEX_TO_CHARSET[41] = "latin7";
+        INDEX_TO_CHARSET[42] = "latin7";
+        INDEX_TO_CHARSET[79] = "latin7";
+
+        INDEX_TO_CHARSET[45] = "utf8mb4";
+        INDEX_TO_CHARSET[46] = "utf8mb4";
+        for (int i = 224; i <= 247; i++) {
+            INDEX_TO_CHARSET[i] = "utf8mb4";
+        }
+        for (int i = 255; i <= 271; i++) {
+            INDEX_TO_CHARSET[i] = "utf8mb4";
+        }
+        for (int i = 273; i <= 275; i++) {
+            INDEX_TO_CHARSET[i] = "utf8mb4";
+        }
+        for (int i = 277; i <= 294; i++) {
+            INDEX_TO_CHARSET[i] = "utf8mb4";
+        }
+        for (int i = 296; i <= 298; i++) {
+            INDEX_TO_CHARSET[i] = "utf8mb4";
+        }
+        INDEX_TO_CHARSET[300] = "utf8mb4";
+        for (int i = 303; i <= 307; i++) {
+            INDEX_TO_CHARSET[i] = "utf8mb4";
+        }
+        INDEX_TO_CHARSET[326] = "utf8mb4";
+        INDEX_TO_CHARSET[328] = "utf8mb4";
+
+        INDEX_TO_CHARSET[14] = "cp1251";
+        INDEX_TO_CHARSET[23] = "cp1251";
+        INDEX_TO_CHARSET[50] = "cp1251";
+        INDEX_TO_CHARSET[51] = "cp1251";
+        INDEX_TO_CHARSET[52] = "cp1251";
+
+        INDEX_TO_CHARSET[54] = "utf16";
+        INDEX_TO_CHARSET[55] = "utf16";
+        for (int i = 101; i <= 124; i++) {
+            INDEX_TO_CHARSET[i] = "utf16";
+        }
+        INDEX_TO_CHARSET[327] = "utf16";
+
+        INDEX_TO_CHARSET[56] = "utf16le";
+        INDEX_TO_CHARSET[62] = "utf16le";
+
+        INDEX_TO_CHARSET[57] = "cp1256";
+        INDEX_TO_CHARSET[67] = "cp1256";
+
+        INDEX_TO_CHARSET[29] = "cp1257";
+        INDEX_TO_CHARSET[58] = "cp1257";
+        INDEX_TO_CHARSET[59] = "cp1257";
+
+        INDEX_TO_CHARSET[60] = "utf32";
+        INDEX_TO_CHARSET[61] = "utf32";
+        for (int i = 160; i <= 183; i++) {
+            INDEX_TO_CHARSET[i] = "utf32";
+        }
+        INDEX_TO_CHARSET[391] = "utf32";
+
+        INDEX_TO_CHARSET[63] = "binary";
+
+        INDEX_TO_CHARSET[92] = "geostd8";
+        INDEX_TO_CHARSET[93] = "geostd8";
+
+        INDEX_TO_CHARSET[95] = "cp932";
+        INDEX_TO_CHARSET[96] = "cp932";
+
+        INDEX_TO_CHARSET[97] = "eucjpms";
+        INDEX_TO_CHARSET[98] = "eucjpms";
+
+        for (int i = 248; i <= 250; i++) {
+            INDEX_TO_CHARSET[i] = "gb18030";
+        }
+
+        // charset --> index
+        for (int i = 0; i < 2048; i++) {
+            String charset = INDEX_TO_CHARSET[i];
+            if (charset != null && CHARSET_TO_INDEX.get(charset) == null) {
+                CHARSET_TO_INDEX.put(charset, i);
+            }
+        }
+        CHARSET_TO_INDEX.put("iso-8859-1", 14);
+        CHARSET_TO_INDEX.put("iso_8859_1", 14);
+        CHARSET_TO_INDEX.put("utf-8", 33);
+        CHARSET_TO_INDEX.put("utf8mb4", 45);
+    }
+
+    public static final String getCharset(int index) {
+        return INDEX_TO_CHARSET[index];
+    }
+
+    public static final int getIndex(String charset) {
+        if (charset == null || charset.length() == 0) {
+            return 0;
+        } else {
+            Integer i = CHARSET_TO_INDEX.get(charset.toLowerCase());
+            return (i == null) ? 0 : i.intValue();
+        }
+    }
+
+    /**
+     * 'utf8' COLLATE 'utf8_general_ci'
+     * 
+     * @param charset
+     * @return
+     */
+    public static final String collateCharset(String charset) {
+        String[] output = StringUtils.split(charset, "COLLATE");
+        return output[0].replace('\'', ' ').trim();
+    }
+
+    public static String getJavaCharset(String charset) {
+        if ("utf8".equals(charset)) {
+            return charset;
+        }
+
+        if (StringUtils.endsWithIgnoreCase(charset, "utf8mb4")) {
+            return "utf-8";
+        }
+
+        if (StringUtils.endsWithIgnoreCase(charset, "binary")) {
+            return "iso_8859_1";
+        }
+
+        return charset;
+    }
+}
diff --git a/driver/src/test/java/com/alibaba/otter/canal/parse/driver/mysql/CharsetUtilTest.java b/driver/src/test/java/com/alibaba/otter/canal/parse/driver/mysql/CharsetUtilTest.java
new file mode 100644
index 00000000..09837d09
--- /dev/null
+++ b/driver/src/test/java/com/alibaba/otter/canal/parse/driver/mysql/CharsetUtilTest.java
@@ -0,0 +1,51 @@
+package com.alibaba.otter.canal.parse.driver.mysql;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.alibaba.otter.canal.parse.driver.mysql.utils.CharsetUtil;
+
+public class CharsetUtilTest {
+
+    @Test
+    public void testLatin1() {
+        int charsetIndex = 5;
+        String charset = "latin1";
+        Assert.assertTrue(charset.equals(CharsetUtil.getCharset(charsetIndex)));
+    }
+
+    @Test
+    public void testGbk() {
+        int charsetIndex = 87;
+        String charset = "gbk";
+        Assert.assertTrue(charset.equals(CharsetUtil.getCharset(charsetIndex)));
+    }
+
+    @Test
+    public void testGb2312() {
+        int charsetIndex = 24;
+        String charset = "gb2312";
+        Assert.assertTrue(charset.equals(CharsetUtil.getCharset(charsetIndex)));
+    }
+
+    @Test
+    public void testUtf8() {
+        int charsetIndex = 213;
+        String charset = "utf8";
+        Assert.assertTrue(charset.equals(CharsetUtil.getCharset(charsetIndex)));
+    }
+
+    @Test
+    public void testUtf8mb4() {
+        int charsetIndex = 235;
+        String charset = "utf8mb4";
+        Assert.assertTrue(charset.equals(CharsetUtil.getCharset(charsetIndex)));
+    }
+
+    @Test
+    public void testBinary() {
+        int charsetIndex = 63;
+        String charset = "binary";
+        Assert.assertTrue(charset.equals(CharsetUtil.getCharset(charsetIndex)));
+    }
+}
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/AbstractEventParser.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/AbstractEventParser.java
index dbb40287..8902c05e 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/AbstractEventParser.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/AbstractEventParser.java
@@ -353,7 +353,11 @@ public abstract class AbstractEventParser<EVENT> extends AbstractCanalLifeCycle
         eventSink.interrupt();
 
         if (multiStageCoprocessor != null && multiStageCoprocessor.isStart()) {
-            multiStageCoprocessor.stop();
+            try {
+                multiStageCoprocessor.stop();
+            } catch (Throwable t) {
+                logger.debug("multi processor rejected:", t);
+            }
         }
 
         try {
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/AbstractMysqlEventParser.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/AbstractMysqlEventParser.java
index 8050186d..5e94e40b 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/AbstractMysqlEventParser.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/AbstractMysqlEventParser.java
@@ -60,6 +60,7 @@ public abstract class AbstractMysqlEventParser extends AbstractEventParser {
         convert.setFilterQueryDdl(filterQueryDdl);
         convert.setFilterRows(filterRows);
         convert.setFilterTableError(filterTableError);
+        convert.setUseDruidDdlFilter(useDruidDdlFilter);
         return convert;
     }
 
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java
index 4348dc29..e3056cb9 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java
@@ -37,21 +37,23 @@ import com.taobao.tddl.dbsync.binlog.LogBuffer;
 import com.taobao.tddl.dbsync.binlog.LogContext;
 import com.taobao.tddl.dbsync.binlog.LogDecoder;
 import com.taobao.tddl.dbsync.binlog.LogEvent;
+import com.taobao.tddl.dbsync.binlog.event.FormatDescriptionLogEvent;
 
 public class MysqlConnection implements ErosaConnection {
 
-    private static final Logger logger      = LoggerFactory.getLogger(MysqlConnection.class);
+    private static final Logger logger         = LoggerFactory.getLogger(MysqlConnection.class);
 
     private MysqlConnector      connector;
     private long                slaveId;
-    private Charset             charset     = Charset.forName("UTF-8");
+    private Charset             charset        = Charset.forName("UTF-8");
     private BinlogFormat        binlogFormat;
     private BinlogImage         binlogImage;
 
     // tsdb releated
     private AuthenticationInfo  authInfo;
-    protected int               connTimeout = 5 * 1000;                                      // 5秒
-    protected int               soTimeout   = 60 * 60 * 1000;                                // 1小时
+    protected int               connTimeout    = 5 * 1000;                                      // 5秒
+    protected int               soTimeout      = 60 * 60 * 1000;                                // 1小时
+    private int                 binlogChecksum = LogEvent.BINLOG_CHECKSUM_ALG_OFF;
     // dump binlog bytes, 暂不包括meta与TSDB
     private AtomicLong          receivedBinlogBytes;
 
@@ -118,7 +120,7 @@ public class MysqlConnection implements ErosaConnection {
      */
     public void seek(String binlogfilename, Long binlogPosition, SinkFunction func) throws IOException {
         updateSettings();
-
+        loadBinlogChecksum();
         sendBinlogDump(binlogfilename, binlogPosition);
         DirectLogFetcher fetcher = new DirectLogFetcher(connector.getReceiveBufferSize());
         fetcher.start(connector.getChannel());
@@ -128,6 +130,7 @@ public class MysqlConnection implements ErosaConnection {
         decoder.handle(LogEvent.QUERY_EVENT);
         decoder.handle(LogEvent.XID_EVENT);
         LogContext context = new LogContext();
+        context.setFormatDescription(new FormatDescriptionLogEvent(4, binlogChecksum));
         while (fetcher.fetch()) {
             accumulateReceivedBytes(fetcher.limit());
             LogEvent event = null;
@@ -145,12 +148,14 @@ public class MysqlConnection implements ErosaConnection {
 
     public void dump(String binlogfilename, Long binlogPosition, SinkFunction func) throws IOException {
         updateSettings();
+        loadBinlogChecksum();
         sendRegisterSlave();
         sendBinlogDump(binlogfilename, binlogPosition);
         DirectLogFetcher fetcher = new DirectLogFetcher(connector.getReceiveBufferSize());
         fetcher.start(connector.getChannel());
         LogDecoder decoder = new LogDecoder(LogEvent.UNKNOWN_EVENT, LogEvent.ENUM_END_EVENT);
         LogContext context = new LogContext();
+        context.setFormatDescription(new FormatDescriptionLogEvent(4, binlogChecksum));
         while (fetcher.fetch()) {
             accumulateReceivedBytes(fetcher.limit());
             LogEvent event = null;
@@ -173,6 +178,7 @@ public class MysqlConnection implements ErosaConnection {
     @Override
     public void dump(GTIDSet gtidSet, SinkFunction func) throws IOException {
         updateSettings();
+        loadBinlogChecksum();
         sendBinlogDumpGTID(gtidSet);
 
         DirectLogFetcher fetcher = new DirectLogFetcher(connector.getReceiveBufferSize());
@@ -180,6 +186,7 @@ public class MysqlConnection implements ErosaConnection {
             fetcher.start(connector.getChannel());
             LogDecoder decoder = new LogDecoder(LogEvent.UNKNOWN_EVENT, LogEvent.ENUM_END_EVENT);
             LogContext context = new LogContext();
+            context.setFormatDescription(new FormatDescriptionLogEvent(4, binlogChecksum));
             // fix bug: #890 将gtid传输至context中，供decode使用
             context.setGtidSet(gtidSet);
             while (fetcher.fetch()) {
@@ -207,9 +214,11 @@ public class MysqlConnection implements ErosaConnection {
     @Override
     public void dump(String binlogfilename, Long binlogPosition, MultiStageCoprocessor coprocessor) throws IOException {
         updateSettings();
+        loadBinlogChecksum();
         sendRegisterSlave();
         sendBinlogDump(binlogfilename, binlogPosition);
         ((MysqlMultiStageCoprocessor) coprocessor).setConnection(this);
+        ((MysqlMultiStageCoprocessor) coprocessor).setBinlogChecksum(binlogChecksum);
         DirectLogFetcher fetcher = new DirectLogFetcher(connector.getReceiveBufferSize());
         try {
             fetcher.start(connector.getChannel());
@@ -234,9 +243,10 @@ public class MysqlConnection implements ErosaConnection {
     @Override
     public void dump(GTIDSet gtidSet, MultiStageCoprocessor coprocessor) throws IOException {
         updateSettings();
+        loadBinlogChecksum();
         sendBinlogDumpGTID(gtidSet);
-
         ((MysqlMultiStageCoprocessor) coprocessor).setConnection(this);
+        ((MysqlMultiStageCoprocessor) coprocessor).setBinlogChecksum(binlogChecksum);
         DirectLogFetcher fetcher = new DirectLogFetcher(connector.getReceiveBufferSize());
         try {
             fetcher.start(connector.getChannel());
@@ -482,6 +492,52 @@ public class MysqlConnection implements ErosaConnection {
         }
     }
 
+    /**
+     * 获取主库checksum信息
+     * 
+     * <pre>
+     * mariadb区别于mysql会在binlog的第一个事件Rotate_Event里也会采用checksum逻辑,而mysql是在第二个binlog事件之后才感知是否需要处理checksum
+     * 导致maraidb只要是开启checksum就会出现binlog文件名解析乱码
+     * fixed issue : https://github.com/alibaba/canal/issues/1081
+     * </pre>
+     */
+    private void loadBinlogChecksum() {
+        if (checkMariaDB()) {
+            ResultSetPacket rs = null;
+            try {
+                rs = query("select @@global.binlog_checksum");
+            } catch (IOException e) {
+                throw new CanalParseException(e);
+            }
+
+            List<String> columnValues = rs.getFieldValues();
+            if (columnValues != null && columnValues.size() >= 1 && columnValues.get(0).toUpperCase().equals("CRC32")) {
+                binlogChecksum = LogEvent.BINLOG_CHECKSUM_ALG_CRC32;
+            } else {
+                binlogChecksum = LogEvent.BINLOG_CHECKSUM_ALG_OFF;
+            }
+        }
+    }
+
+    /**
+     * 获取是否为mariadb
+     */
+    private boolean checkMariaDB() {
+        ResultSetPacket rs = null;
+        try {
+            rs = query("SELECT @@version");
+        } catch (IOException e) {
+            throw new CanalParseException(e);
+        }
+
+        List<String> columnValues = rs.getFieldValues();
+        if (columnValues != null && columnValues.size() >= 1) {
+            return StringUtils.containsIgnoreCase(columnValues.get(0), "MariaDB");
+        }
+
+        return false;
+    }
+
     private void accumulateReceivedBytes(long x) {
         if (receivedBinlogBytes != null) {
             receivedBinlogBytes.addAndGet(x);
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlEventParser.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlEventParser.java
index df9c952c..e8ca45e3 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlEventParser.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlEventParser.java
@@ -69,6 +69,7 @@ public class MysqlEventParser extends AbstractMysqlEventParser implements CanalE
     // update by yishun.chen,特殊异常处理参数
     private int                  dumpErrorCount                    = 0;        // binlogDump失败异常计数
     private int                  dumpErrorCountThreshold           = 2;        // binlogDump失败异常计数阀值
+    private boolean              rdsOssMode                        = false;
 
     protected ErosaConnection buildErosaConnection() {
         return buildMysqlConnection(this.runningInfo);
@@ -352,7 +353,7 @@ public class MysqlEventParser extends AbstractMysqlEventParser implements CanalE
                 return logPosition.getPostion();
             }
 
-            if (masterPosition!=null && StringUtils.isNotEmpty(masterPosition.getGtid())) {
+            if (masterPosition != null && StringUtils.isNotEmpty(masterPosition.getGtid())) {
                 return masterPosition;
             }
         }
@@ -493,6 +494,12 @@ public class MysqlEventParser extends AbstractMysqlEventParser implements CanalE
                         dumpErrorCount = 0;
                         return findPosition;
                     }
+
+                    Long timestamp = logPosition.getPostion().getTimestamp();
+                    if (isRdsOssMode() && (timestamp != null && timestamp > 0)) {
+                        // 如果binlog位点不存在，并且属于timestamp不为空,可以返回null走到oss binlog处理
+                        return null;
+                    }
                 }
                 // 其余情况
                 logger.warn("prepare to find start position just last position\n {}",
@@ -745,14 +752,13 @@ public class MysqlEventParser extends AbstractMysqlEventParser implements CanalE
                             logPosition.setPostion(entryPosition);
                         }
 
-                        if (entry == null) {
-                            return true;
-                        }
-
-                        String logfilename = entry.getHeader().getLogfileName();
-                        Long logfileoffset = entry.getHeader().getLogfileOffset();
-                        Long logposTimestamp = entry.getHeader().getExecuteTime();
-                        Long serverId = entry.getHeader().getServerId();
+                        // 直接用event的位点来处理,解决一个binlog文件里没有任何事件导致死循环无法退出的问题
+                        String logfilename = event.getHeader().getLogFileName();
+                        // 记录的是binlog end offest,
+                        // 因为与其对比的offest是show master status里的end offest
+                        Long logfileoffset = event.getHeader().getLogPos();
+                        Long logposTimestamp = event.getHeader().getWhen() * 1000;
+                        Long serverId = event.getHeader().getServerId();
 
                         // 如果最小的一条记录都不满足条件，可直接退出
                         if (logposTimestamp >= startTimestamp) {
@@ -764,6 +770,10 @@ public class MysqlEventParser extends AbstractMysqlEventParser implements CanalE
                             return false;
                         }
 
+                        if (entry == null) {
+                            return true;
+                        }
+
                         // 记录一下上一个事务结束的位置，即下一个事务的position
                         // position = current +
                         // data.length，代表该事务的下一条offest，避免多余的事务重复
@@ -905,4 +915,12 @@ public class MysqlEventParser extends AbstractMysqlEventParser implements CanalE
         this.dumpErrorCountThreshold = dumpErrorCountThreshold;
     }
 
+    public boolean isRdsOssMode() {
+        return rdsOssMode;
+    }
+
+    public void setRdsOssMode(boolean rdsOssMode) {
+        this.rdsOssMode = rdsOssMode;
+    }
+
 }
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlMultiStageCoprocessor.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlMultiStageCoprocessor.java
index 3db8ecc4..703de818 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlMultiStageCoprocessor.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlMultiStageCoprocessor.java
@@ -33,6 +33,7 @@ import com.taobao.tddl.dbsync.binlog.LogContext;
 import com.taobao.tddl.dbsync.binlog.LogDecoder;
 import com.taobao.tddl.dbsync.binlog.LogEvent;
 import com.taobao.tddl.dbsync.binlog.event.DeleteRowsLogEvent;
+import com.taobao.tddl.dbsync.binlog.event.FormatDescriptionLogEvent;
 import com.taobao.tddl.dbsync.binlog.event.RowsLogEvent;
 import com.taobao.tddl.dbsync.binlog.event.UpdateRowsLogEvent;
 import com.taobao.tddl.dbsync.binlog.event.WriteRowsLogEvent;
@@ -69,6 +70,7 @@ public class MysqlMultiStageCoprocessor extends AbstractCanalLifeCycle implement
     private WorkerPool<MessageEvent>          workerPool;
     private BatchEventProcessor<MessageEvent> simpleParserStage;
     private BatchEventProcessor<MessageEvent> sinkStoreStage;
+    private LogContext                        logContext;
 
     public MysqlMultiStageCoprocessor(int ringBufferSize, int parserThreadCount, LogEventConvert logEventConvert,
                                       EventTransactionBuffer transactionBuffer, String destination){
@@ -95,9 +97,10 @@ public class MysqlMultiStageCoprocessor extends AbstractCanalLifeCycle implement
         SequenceBarrier sequenceBarrier = disruptorMsgBuffer.newBarrier();
         ExceptionHandler exceptionHandler = new SimpleFatalExceptionHandler();
         // stage 2
+        this.logContext = new LogContext();
         simpleParserStage = new BatchEventProcessor<MessageEvent>(disruptorMsgBuffer,
             sequenceBarrier,
-            new SimpleParserStage());
+            new SimpleParserStage(logContext));
         simpleParserStage.setExceptionHandler(exceptionHandler);
         disruptorMsgBuffer.addGatingSequences(simpleParserStage.getSequence());
 
@@ -128,6 +131,12 @@ public class MysqlMultiStageCoprocessor extends AbstractCanalLifeCycle implement
         workerPool.start(parserExecutor);
     }
 
+    public void setBinlogChecksum(int binlogChecksum) {
+        if (binlogChecksum != LogEvent.BINLOG_CHECKSUM_ALG_OFF) {
+            logContext.setFormatDescription(new FormatDescriptionLogEvent(4, binlogChecksum));
+        }
+    }
+
     @Override
     public void stop() {
         // fix bug #968，对于pool与
@@ -239,9 +248,9 @@ public class MysqlMultiStageCoprocessor extends AbstractCanalLifeCycle implement
         private LogDecoder decoder;
         private LogContext context;
 
-        public SimpleParserStage(){
+        public SimpleParserStage(LogContext context){
             decoder = new LogDecoder(LogEvent.UNKNOWN_EVENT, LogEvent.ENUM_END_EVENT);
-            context = new LogContext();
+            this.context = context;
             if (gtidSet != null) {
                 context.setGtidSet(gtidSet);
             }
@@ -266,6 +275,7 @@ public class MysqlMultiStageCoprocessor extends AbstractCanalLifeCycle implement
                         needDmlParse = true;
                         break;
                     case LogEvent.UPDATE_ROWS_EVENT_V1:
+                    case LogEvent.PARTIAL_UPDATE_ROWS_EVENT:
                     case LogEvent.UPDATE_ROWS_EVENT:
                         tableMeta = logEventConvert.parseRowsEventForTableMeta((UpdateRowsLogEvent) logEvent);
                         needDmlParse = true;
@@ -468,4 +478,5 @@ public class MysqlMultiStageCoprocessor extends AbstractCanalLifeCycle implement
     public void setGtidSet(GTIDSet gtidSet) {
         this.gtidSet = gtidSet;
     }
+
 }
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync/LogEventConvert.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync/LogEventConvert.java
index ec71465b..5c5432c6 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync/LogEventConvert.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync/LogEventConvert.java
@@ -120,6 +120,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
             case LogEvent.WRITE_ROWS_EVENT:
                 return parseRowsEvent((WriteRowsLogEvent) logEvent);
             case LogEvent.UPDATE_ROWS_EVENT_V1:
+            case LogEvent.PARTIAL_UPDATE_ROWS_EVENT:
             case LogEvent.UPDATE_ROWS_EVENT:
                 return parseRowsEvent((UpdateRowsLogEvent) logEvent);
             case LogEvent.DELETE_ROWS_EVENT_V1:
@@ -260,7 +261,9 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
                 return null;
             }
 
-            if (!isSeek) {
+            boolean isDml = (type == EventType.INSERT || type == EventType.UPDATE || type == EventType.DELETE);
+
+            if (!isSeek && !isDml) {
                 // 使用新的表结构元数据管理方式
                 EntryPosition position = createPosition(event.getHeader());
                 tableMetaCache.apply(position, event.getDbName(), queryString, null);
@@ -268,8 +271,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
 
             Header header = createHeader(event.getHeader(), schemaName, tableName, type);
             RowChange.Builder rowChangeBuider = RowChange.newBuilder();
-            if (type != EventType.QUERY && type != EventType.INSERT && type != EventType.UPDATE
-                && type != EventType.DELETE) {
+            if (type != EventType.QUERY && !isDml) {
                 rowChangeBuider.setIsDdl(true);
             }
             rowChangeBuider.setSql(queryString);
@@ -503,7 +505,8 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
             int type = event.getHeader().getType();
             if (LogEvent.WRITE_ROWS_EVENT_V1 == type || LogEvent.WRITE_ROWS_EVENT == type) {
                 eventType = EventType.INSERT;
-            } else if (LogEvent.UPDATE_ROWS_EVENT_V1 == type || LogEvent.UPDATE_ROWS_EVENT == type) {
+            } else if (LogEvent.UPDATE_ROWS_EVENT_V1 == type || LogEvent.UPDATE_ROWS_EVENT == type
+                       || LogEvent.PARTIAL_UPDATE_ROWS_EVENT == type) {
                 eventType = EventType.UPDATE;
             } else if (LogEvent.DELETE_ROWS_EVENT_V1 == type || LogEvent.DELETE_ROWS_EVENT == type) {
                 eventType = EventType.DELETE;
@@ -522,7 +525,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
 
             boolean tableError = false;
             int rowsCount = 0;
-            while (buffer.nextOneRow(columns)) {
+            while (buffer.nextOneRow(columns, false)) {
                 // 处理row记录
                 RowData.Builder rowDataBuilder = RowData.newBuilder();
                 if (EventType.INSERT == eventType) {
@@ -534,7 +537,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
                 } else {
                     // update需要处理before/after
                     tableError |= parseOneRow(rowDataBuilder, event, buffer, columns, false, tableMeta);
-                    if (!buffer.nextOneRow(changeColumns)) {
+                    if (!buffer.nextOneRow(changeColumns, true)) {
                         rowChangeBuider.addRowDatas(rowDataBuilder.build());
                         break;
                     }
@@ -567,8 +570,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
     }
 
     private EntryPosition createPosition(LogHeader logHeader) {
-        return new EntryPosition(logHeader.getLogFileName(),
-            logHeader.getLogPos(),
+        return new EntryPosition(logHeader.getLogFileName(), logHeader.getLogPos() - logHeader.getEventLen(), // startPos
             logHeader.getWhen() * 1000L,
             logHeader.getServerId()); // 记录到秒
     }
@@ -577,7 +579,8 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
                                 boolean isAfter, TableMeta tableMeta) throws UnsupportedEncodingException {
         int columnCnt = event.getTable().getColumnCnt();
         ColumnInfo[] columnInfo = event.getTable().getColumnInfo();
-
+        // mysql8.0针对set @@global.binlog_row_metadata='FULL' 可以记录部分的metadata信息
+        boolean existOptionalMetaData = event.getTable().isExistOptionalMetaData();
         boolean tableError = false;
         // check table fileds count，只能处理加字段
         boolean existRDSNoPrimaryKey = false;
@@ -631,22 +634,43 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
                 continue;
             }
 
-            if (existRDSNoPrimaryKey && i == columnCnt - 1 && info.type == LogEvent.MYSQL_TYPE_LONGLONG) {
-                // 不解析最后一列
-                buffer.nextValue(info.type, info.meta, false);
-                continue;
-            }
-
-            Column.Builder columnBuilder = Column.newBuilder();
-
             FieldMeta fieldMeta = null;
             if (tableMeta != null && !tableError) {
                 // 处理file meta
                 fieldMeta = tableMeta.getFields().get(i);
+            }
+
+            if (existRDSNoPrimaryKey && i == columnCnt - 1 && info.type == LogEvent.MYSQL_TYPE_LONGLONG) {
+                // 不解析最后一列
+                buffer.nextValue(fieldMeta.getColumnName(), i, info.type, info.meta, false);
+                continue;
+            }
+
+            if (fieldMeta != null && existOptionalMetaData) {
+                // check column info
+                boolean check = StringUtils.equalsIgnoreCase(fieldMeta.getColumnName(), info.name);
+                check &= (fieldMeta.isUnsigned() == info.unsigned);
+                check &= (fieldMeta.isNullable() == info.nullable);
+
+                if (!check) {
+                    throw new CanalParseException("MySQL8.0 unmatch column metadata & pls submit issue , db : "
+                                                  + fieldMeta.toString() + " , binlog : " + info.toString()
+                                                  + " , on : " + event.getHeader().getLogFileName() + ":"
+                                                  + event.getHeader().getLogPos());
+                }
+            }
+
+            Column.Builder columnBuilder = Column.newBuilder();
+            if (fieldMeta != null) {
                 columnBuilder.setName(fieldMeta.getColumnName());
                 columnBuilder.setIsKey(fieldMeta.isKey());
                 // 增加mysql type类型,issue 73
                 columnBuilder.setMysqlType(fieldMeta.getColumnType());
+            } else if (existOptionalMetaData) {
+                columnBuilder.setName(info.name);
+                columnBuilder.setIsKey(info.pk);
+                // mysql8.0里没有mysql type类型
+                // columnBuilder.setMysqlType(fieldMeta.getColumnType());
             }
             columnBuilder.setIndex(i);
             columnBuilder.setIsNull(false);
@@ -664,12 +688,8 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
                     isSingleBit = true;
                 }
             }
-            buffer.nextValue(info.type, info.meta, isBinary);
-            if (existRDSNoPrimaryKey && i == columnCnt - 1 && info.type == LogEvent.MYSQL_TYPE_LONGLONG) {
-                // 不解析最后一列
-                continue;
-            }
 
+            buffer.nextValue(fieldMeta.getColumnName(), i, info.type, info.meta, isBinary);
             int javaType = buffer.getJavaType();
             if (buffer.isNull()) {
                 columnBuilder.setIsNull(true);
@@ -683,7 +703,8 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
                     case Types.BIGINT:
                         // 处理unsigned类型
                         Number number = (Number) value;
-                        if (fieldMeta != null && fieldMeta.isUnsigned() && number.longValue() < 0) {
+                        boolean isUnsigned = (fieldMeta != null ? fieldMeta.isUnsigned() : (existOptionalMetaData ? info.unsigned : false));
+                        if (isUnsigned && number.longValue() < 0) {
                             switch (buffer.getLength()) {
                                 case 1: /* MYSQL_TYPE_TINY */
                                     columnBuilder.setValue(String.valueOf(Integer.valueOf(TINYINT_MAX_VALUE
@@ -772,7 +793,6 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
                     default:
                         columnBuilder.setValue(value.toString());
                 }
-
             }
 
             columnBuilder.setSqlType(javaType);
@@ -818,6 +838,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
         Header.Builder headerBuilder = Header.newBuilder();
         headerBuilder.setVersion(version);
         headerBuilder.setLogfileName(logHeader.getLogFileName());
+        // 记录的是该binlog的start offest
         headerBuilder.setLogfileOffset(logHeader.getLogPos() - logHeader.getEventLen());
         headerBuilder.setServerId(logHeader.getServerId());
         headerBuilder.setServerenCode(UTF_8);// 经过java输出后所有的编码为unicode
@@ -981,4 +1002,8 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
     public void setFilterRows(boolean filterRows) {
         this.filterRows = filterRows;
     }
+
+    public void setUseDruidDdlFilter(boolean useDruidDdlFilter) {
+        this.useDruidDdlFilter = useDruidDdlFilter;
+    }
 }
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/BinlogDownloadQueue.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/BinlogDownloadQueue.java
index e132514b..b90b89d5 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/BinlogDownloadQueue.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/BinlogDownloadQueue.java
@@ -41,6 +41,7 @@ import org.apache.http.ssl.TrustStrategy;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import com.alibaba.otter.canal.parse.exception.CanalParseException;
 import com.alibaba.otter.canal.parse.inbound.mysql.rds.data.BinlogFile;
 
 /**
@@ -103,6 +104,9 @@ public class BinlogDownloadQueue {
 
     public BinlogFile tryOne() throws Throwable {
         BinlogFile binlogFile = binlogList.poll();
+        if (binlogFile == null) {
+            throw new CanalParseException("download binlog is null");
+        }
         download(binlogFile);
         hostId = binlogFile.getHostInstanceID();
         this.currentSize++;
@@ -131,7 +135,7 @@ public class BinlogDownloadQueue {
         if (StringUtils.isNotEmpty(needCompareName) && StringUtils.endsWith(needCompareName, "tar")) {
             needCompareName = needCompareName.substring(0, needCompareName.indexOf("."));
         }
-        return fileName.equalsIgnoreCase(needCompareName) && binlogList.isEmpty();
+        return (needCompareName == null || fileName.equalsIgnoreCase(needCompareName)) && binlogList.isEmpty();
     }
 
     public void prepare() throws InterruptedException {
@@ -162,6 +166,14 @@ public class BinlogDownloadQueue {
         this.currentSize = 0;
         binlogList.clear();
         downloadQueue.clear();
+        try {
+            downloadThread.interrupt();
+            downloadThread.join();// 等待其结束
+        } catch (InterruptedException e) {
+            // ignore
+        } finally {
+            downloadThread = null;
+        }
     }
 
     private void download(BinlogFile binlogFile) throws Throwable {
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsBinlogEventParserProxy.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsBinlogEventParserProxy.java
index 3c38ed0c..f3a220b0 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsBinlogEventParserProxy.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsBinlogEventParserProxy.java
@@ -22,14 +22,14 @@ import com.alibaba.otter.canal.parse.inbound.mysql.MysqlEventParser;
  */
 public class RdsBinlogEventParserProxy extends MysqlEventParser {
 
-    private String                    rdsOpenApiUrl             = "https://rds.aliyuncs.com/";    // openapi地址
-    private String                    accesskey;                                                  // 云账号的ak
-    private String                    secretkey;                                                  // 云账号sk
-    private String                    instanceId;                                                 // rds实例id
-    private String                    directory;                                                  // binlog目录
-    private int                       batchFileSize             = 4;                              // 最多下载的binlog文件数量
+    private String                    rdsOpenApiUrl             = "https://rds.aliyuncs.com/"; // openapi地址
+    private String                    accesskey;                                              // 云账号的ak
+    private String                    secretkey;                                              // 云账号sk
+    private String                    instanceId;                                             // rds实例id
+    private String                    directory;                                              // binlog目录
+    private int                       batchFileSize             = 4;                          // 最多下载的binlog文件数量
 
-    private RdsLocalBinlogEventParser rdsLocalBinlogEventParser = new RdsLocalBinlogEventParser();
+    private RdsLocalBinlogEventParser rdsLocalBinlogEventParser = null;
     private ExecutorService           executorService           = Executors.newSingleThreadExecutor(new ThreadFactory() {
 
                                                                     @Override
@@ -43,8 +43,11 @@ public class RdsBinlogEventParserProxy extends MysqlEventParser {
 
     @Override
     public void start() {
-        if (StringUtils.isNotEmpty(accesskey) && StringUtils.isNotEmpty(secretkey)
+        if (rdsLocalBinlogEventParser == null && StringUtils.isNotEmpty(accesskey) && StringUtils.isNotEmpty(secretkey)
             && StringUtils.isNotEmpty(instanceId)) {
+            rdsLocalBinlogEventParser = new RdsLocalBinlogEventParser();
+            // rds oss mode
+            setRdsOssMode(true);
             final ParserExceptionHandler targetHandler = this.getParserExceptionHandler();
             if (directory == null) {
                 directory = System.getProperty("java.io.tmpdir", "/tmp") + "/" + destination;
@@ -119,10 +122,18 @@ public class RdsBinlogEventParserProxy extends MysqlEventParser {
                         long serverId = rdsBinlogEventParserProxy.getServerId();
                         rdsLocalBinlogEventParser.setServerId(serverId);
                         rdsBinlogEventParserProxy.stop();
+                    } catch (Throwable e) {
+                        logger.info("handle exception failed", e);
+                    }
+
+                    try {
                         logger.info("start rds mysql binlog parser!");
                         rdsLocalBinlogEventParser.start();
                     } catch (Throwable e) {
                         logger.info("handle exception failed", e);
+                        rdsLocalBinlogEventParser.stop();
+                        RdsBinlogEventParserProxy rdsBinlogEventParserProxy = RdsBinlogEventParserProxy.this;
+                        rdsBinlogEventParserProxy.start();// 继续重试
                     }
                 }
             });
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsLocalBinlogEventParser.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsLocalBinlogEventParser.java
index aac14d99..2e0960fe 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsLocalBinlogEventParser.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsLocalBinlogEventParser.java
@@ -57,7 +57,11 @@ public class RdsLocalBinlogEventParser extends LocalBinlogEventParser implements
             if (entryPosition == null) {
                 throw new PositionNotFoundException("position not found!");
             }
-            long startTimeInMill = entryPosition.getTimestamp();
+            Long startTimeInMill = entryPosition.getTimestamp();
+            if (startTimeInMill == null || startTimeInMill <= 0) {
+                throw new PositionNotFoundException("position timestamp is empty!");
+            }
+
             startTime = startTimeInMill;
             List<BinlogFile> binlogFiles = RdsBinlogOpenApi.listBinlogFiles(url,
                 accesskey,
@@ -65,6 +69,10 @@ public class RdsLocalBinlogEventParser extends LocalBinlogEventParser implements
                 instanceId,
                 new Date(startTime),
                 new Date(endTime));
+            if (binlogFiles.isEmpty()) {
+                throw new CanalParseException("start timestamp : " + startTimeInMill + " binlog files is empty");
+            }
+
             binlogDownloadQueue = new BinlogDownloadQueue(binlogFiles, batchFileSize, directory);
             binlogDownloadQueue.silenceDownload();
             needWait = true;
diff --git a/parse/src/test/java/com/alibaba/otter/canal/parse/DirectLogFetcherTest.java b/parse/src/test/java/com/alibaba/otter/canal/parse/DirectLogFetcherTest.java
index aa48f9a3..fd01e6a8 100644
--- a/parse/src/test/java/com/alibaba/otter/canal/parse/DirectLogFetcherTest.java
+++ b/parse/src/test/java/com/alibaba/otter/canal/parse/DirectLogFetcherTest.java
@@ -1,7 +1,12 @@
 package com.alibaba.otter.canal.parse;
 
 import java.io.IOException;
+import java.io.Serializable;
+import java.io.UnsupportedEncodingException;
 import java.net.InetSocketAddress;
+import java.nio.charset.Charset;
+import java.util.BitSet;
+import java.util.List;
 
 import org.apache.commons.lang.StringUtils;
 import org.junit.Assert;
@@ -10,29 +15,49 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.alibaba.otter.canal.parse.driver.mysql.MysqlConnector;
+import com.alibaba.otter.canal.parse.driver.mysql.MysqlQueryExecutor;
 import com.alibaba.otter.canal.parse.driver.mysql.MysqlUpdateExecutor;
 import com.alibaba.otter.canal.parse.driver.mysql.packets.HeaderPacket;
 import com.alibaba.otter.canal.parse.driver.mysql.packets.client.BinlogDumpCommandPacket;
 import com.alibaba.otter.canal.parse.driver.mysql.packets.client.RegisterSlaveCommandPacket;
 import com.alibaba.otter.canal.parse.driver.mysql.packets.server.ErrorPacket;
+import com.alibaba.otter.canal.parse.driver.mysql.packets.server.ResultSetPacket;
 import com.alibaba.otter.canal.parse.driver.mysql.utils.PacketManager;
+import com.alibaba.otter.canal.parse.exception.CanalParseException;
 import com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher;
 import com.taobao.tddl.dbsync.binlog.LogContext;
 import com.taobao.tddl.dbsync.binlog.LogDecoder;
 import com.taobao.tddl.dbsync.binlog.LogEvent;
+import com.taobao.tddl.dbsync.binlog.event.DeleteRowsLogEvent;
+import com.taobao.tddl.dbsync.binlog.event.FormatDescriptionLogEvent;
+import com.taobao.tddl.dbsync.binlog.event.QueryLogEvent;
 import com.taobao.tddl.dbsync.binlog.event.RotateLogEvent;
+import com.taobao.tddl.dbsync.binlog.event.RowsLogBuffer;
+import com.taobao.tddl.dbsync.binlog.event.RowsLogEvent;
+import com.taobao.tddl.dbsync.binlog.event.RowsQueryLogEvent;
+import com.taobao.tddl.dbsync.binlog.event.TableMapLogEvent;
+import com.taobao.tddl.dbsync.binlog.event.TableMapLogEvent.ColumnInfo;
+import com.taobao.tddl.dbsync.binlog.event.UpdateRowsLogEvent;
+import com.taobao.tddl.dbsync.binlog.event.WriteRowsLogEvent;
+import com.taobao.tddl.dbsync.binlog.event.XidLogEvent;
+import com.taobao.tddl.dbsync.binlog.event.mariadb.AnnotateRowsEvent;
 
 public class DirectLogFetcherTest {
 
     protected final Logger logger = LoggerFactory.getLogger(this.getClass());
+    protected String       binlogFileName = "mysql-bin.000001";
+    protected Charset      charset        = Charset.forName("utf-8");
+    private boolean        isMariaDB;
+    private int            binlogChecksum;
 
     @Test
     public void testSimple() {
         DirectLogFetcher fetcher = new DirectLogFetcher();
         try {
-            MysqlConnector connector = new MysqlConnector(new InetSocketAddress("127.0.0.1", 3306), "xxxx", "xxxx");
+            MysqlConnector connector = new MysqlConnector(new InetSocketAddress("127.0.0.1", 3306), "root", "hello");
             connector.connect();
             updateSettings(connector);
+            loadBinlogChecksum(connector);
             sendRegisterSlave(connector, 3);
             sendBinlogDump(connector, "mysql-bin.000001", 4L, 3);
 
@@ -40,6 +65,8 @@ public class DirectLogFetcherTest {
 
             LogDecoder decoder = new LogDecoder(LogEvent.UNKNOWN_EVENT, LogEvent.ENUM_END_EVENT);
             LogContext context = new LogContext();
+            context.setFormatDescription(new FormatDescriptionLogEvent(4, binlogChecksum));
+
             while (fetcher.fetch()) {
                 LogEvent event = null;
                 event = decoder.decode(fetcher, context);
@@ -57,21 +84,22 @@ public class DirectLogFetcherTest {
                         break;
                     case LogEvent.WRITE_ROWS_EVENT_V1:
                     case LogEvent.WRITE_ROWS_EVENT:
-                        // parseRowsEvent((WriteRowsLogEvent) event);
+                        parseRowsEvent((WriteRowsLogEvent) event);
                         break;
                     case LogEvent.UPDATE_ROWS_EVENT_V1:
+                    case LogEvent.PARTIAL_UPDATE_ROWS_EVENT:
                     case LogEvent.UPDATE_ROWS_EVENT:
-                        // parseRowsEvent((UpdateRowsLogEvent) event);
+                        parseRowsEvent((UpdateRowsLogEvent) event);
                         break;
                     case LogEvent.DELETE_ROWS_EVENT_V1:
                     case LogEvent.DELETE_ROWS_EVENT:
-                        // parseRowsEvent((DeleteRowsLogEvent) event);
+                        parseRowsEvent((DeleteRowsLogEvent) event);
                         break;
                     case LogEvent.QUERY_EVENT:
-                        // parseQueryEvent((QueryLogEvent) event);
+                        parseQueryEvent((QueryLogEvent) event);
                         break;
                     case LogEvent.ROWS_QUERY_LOG_EVENT:
-                        // parseRowsQueryEvent((RowsQueryLogEvent) event);
+                        parseRowsQueryEvent((RowsQueryLogEvent) event);
                         break;
                     case LogEvent.ANNOTATE_ROWS_EVENT:
                         break;
@@ -188,9 +216,141 @@ public class DirectLogFetcherTest {
         }
     }
 
+    private void loadBinlogChecksum(MysqlConnector connector) {
+        checkMariaDB(connector);
+        if (isMariaDB) {
+            ResultSetPacket rs = null;
+            try {
+                rs = query("select @@global.binlog_checksum", connector);
+            } catch (IOException e) {
+                throw new CanalParseException(e);
+            }
+
+            List<String> columnValues = rs.getFieldValues();
+            if (columnValues != null && columnValues.size() >= 1 && columnValues.get(0).toUpperCase().equals("CRC32")) {
+                binlogChecksum = LogEvent.BINLOG_CHECKSUM_ALG_CRC32;
+            } else {
+                binlogChecksum = LogEvent.BINLOG_CHECKSUM_ALG_OFF;
+            }
+        }
+    }
+
+    private void checkMariaDB(MysqlConnector connector) {
+        ResultSetPacket rs = null;
+        try {
+            rs = query("SELECT @@version", connector);
+        } catch (IOException e) {
+            throw new CanalParseException(e);
+        }
+
+        List<String> columnValues = rs.getFieldValues();
+        if (columnValues != null && columnValues.size() >= 1) {
+            isMariaDB = StringUtils.containsIgnoreCase(columnValues.get(0), "MariaDB");
+        }
+    }
+
+    public ResultSetPacket query(String cmd, MysqlConnector connector) throws IOException {
+        MysqlQueryExecutor exector = new MysqlQueryExecutor(connector);
+        return exector.query(cmd);
+    }
+
     public void update(String cmd, MysqlConnector connector) throws IOException {
         MysqlUpdateExecutor exector = new MysqlUpdateExecutor(connector);
         exector.update(cmd);
     }
 
+    protected void parseQueryEvent(QueryLogEvent event) {
+        System.out.println(String.format("================> binlog[%s:%s] , name[%s]",
+            binlogFileName,
+            event.getHeader().getLogPos() - event.getHeader().getEventLen(),
+            event.getCatalog()));
+        System.out.println("sql : " + event.getQuery());
+    }
+
+    protected void parseRowsQueryEvent(RowsQueryLogEvent event) throws Exception {
+        System.out.println(String.format("================> binlog[%s:%s]", binlogFileName, event.getHeader()
+            .getLogPos() - event.getHeader().getEventLen()));
+        System.out.println("sql : " + new String(event.getRowsQuery().getBytes("ISO-8859-1"), charset.name()));
+    }
+
+    protected void parseAnnotateRowsEvent(AnnotateRowsEvent event) throws Exception {
+        System.out.println(String.format("================> binlog[%s:%s]", binlogFileName, event.getHeader()
+            .getLogPos() - event.getHeader().getEventLen()));
+        System.out.println("sql : " + new String(event.getRowsQuery().getBytes("ISO-8859-1"), charset.name()));
+    }
+
+    protected void parseXidEvent(XidLogEvent event) throws Exception {
+        System.out.println(String.format("================> binlog[%s:%s]", binlogFileName, event.getHeader()
+            .getLogPos() - event.getHeader().getEventLen()));
+        System.out.println("xid : " + event.getXid());
+    }
+
+    protected void parseRowsEvent(RowsLogEvent event) {
+        try {
+            System.out.println(String.format("================> binlog[%s:%s] , name[%s,%s]",
+                binlogFileName,
+                event.getHeader().getLogPos() - event.getHeader().getEventLen(),
+                event.getTable().getDbName(),
+                event.getTable().getTableName()));
+            RowsLogBuffer buffer = event.getRowsBuf(charset.name());
+            BitSet columns = event.getColumns();
+            BitSet changeColumns = event.getChangeColumns();
+            while (buffer.nextOneRow(columns)) {
+                // 处理row记录
+                int type = event.getHeader().getType();
+                if (LogEvent.WRITE_ROWS_EVENT_V1 == type || LogEvent.WRITE_ROWS_EVENT == type) {
+                    // insert的记录放在before字段中
+                    parseOneRow(event, buffer, columns, true);
+                } else if (LogEvent.DELETE_ROWS_EVENT_V1 == type || LogEvent.DELETE_ROWS_EVENT == type) {
+                    // delete的记录放在before字段中
+                    parseOneRow(event, buffer, columns, false);
+                } else {
+                    // update需要处理before/after
+                    System.out.println("-------> before");
+                    parseOneRow(event, buffer, columns, false);
+                    if (!buffer.nextOneRow(changeColumns, true)) {
+                        break;
+                    }
+                    System.out.println("-------> after");
+                    parseOneRow(event, buffer, changeColumns, true);
+                }
+
+            }
+        } catch (Exception e) {
+            throw new RuntimeException("parse row data failed.", e);
+        }
+    }
+
+    protected void parseOneRow(RowsLogEvent event, RowsLogBuffer buffer, BitSet cols, boolean isAfter)
+                                                                                                      throws UnsupportedEncodingException {
+        TableMapLogEvent map = event.getTable();
+        if (map == null) {
+            throw new RuntimeException("not found TableMap with tid=" + event.getTableId());
+        }
+
+        final int columnCnt = map.getColumnCnt();
+        final ColumnInfo[] columnInfo = map.getColumnInfo();
+
+        for (int i = 0; i < columnCnt; i++) {
+            if (!cols.get(i)) {
+                continue;
+            }
+
+            ColumnInfo info = columnInfo[i];
+            buffer.nextValue(null, i, info.type, info.meta);
+
+            if (buffer.isNull()) {
+                //
+            } else {
+                final Serializable value = buffer.getValue();
+                if (value instanceof byte[]) {
+                    System.out.println(new String((byte[]) value));
+                } else {
+                    System.out.println(value);
+                }
+            }
+        }
+
+    }
+
 }
diff --git a/parse/src/test/java/com/alibaba/otter/canal/parse/MysqlBinlogParsePerformanceTest.java b/parse/src/test/java/com/alibaba/otter/canal/parse/MysqlBinlogParsePerformanceTest.java
index 79b88375..70b2dbd7 100644
--- a/parse/src/test/java/com/alibaba/otter/canal/parse/MysqlBinlogParsePerformanceTest.java
+++ b/parse/src/test/java/com/alibaba/otter/canal/parse/MysqlBinlogParsePerformanceTest.java
@@ -89,6 +89,7 @@ public class MysqlBinlogParsePerformanceTest {
                     parseRowsEvent((WriteRowsLogEvent) event, sum);
                     break;
                 case LogEvent.UPDATE_ROWS_EVENT_V1:
+                case LogEvent.PARTIAL_UPDATE_ROWS_EVENT:
                 case LogEvent.UPDATE_ROWS_EVENT:
                     parseRowsEvent((UpdateRowsLogEvent) event, sum);
                     break;
@@ -154,7 +155,7 @@ public class MysqlBinlogParsePerformanceTest {
                     parseOneRow(event, buffer, columns, false);
                 } else {
                     parseOneRow(event, buffer, columns, false);
-                    if (!buffer.nextOneRow(changeColumns)) {
+                    if (!buffer.nextOneRow(changeColumns, true)) {
                         break;
                     }
                     parseOneRow(event, buffer, changeColumns, true);
@@ -182,7 +183,7 @@ public class MysqlBinlogParsePerformanceTest {
             }
 
             ColumnInfo info = columnInfo[i];
-            buffer.nextValue(info.type, info.meta);
+            buffer.nextValue(null, i, info.type, info.meta);
             if (buffer.isNull()) {
             } else {
                 buffer.getValue();
diff --git a/server/src/main/java/com/alibaba/otter/canal/common/CanalMessageSerializer.java b/server/src/main/java/com/alibaba/otter/canal/common/CanalMessageSerializer.java
index 665dbf55..fda5dc65 100644
--- a/server/src/main/java/com/alibaba/otter/canal/common/CanalMessageSerializer.java
+++ b/server/src/main/java/com/alibaba/otter/canal/common/CanalMessageSerializer.java
@@ -16,7 +16,7 @@ import com.google.protobuf.WireFormat;
 public class CanalMessageSerializer {
 
     @SuppressWarnings("deprecation")
-    public static byte[] serializer(Message data) {
+    public static byte[] serializer(Message data, boolean filterTransactionEntry) {
         try {
             if (data != null) {
                 if (data.getId() != -1) {
@@ -53,8 +53,14 @@ public class CanalMessageSerializer {
                         output.checkNoSpaceLeft();
                         return body;
                     } else if (!CollectionUtils.isEmpty(data.getEntries())) {
+                        // mq模式只会走到非rowEntry模式
                         CanalPacket.Messages.Builder messageBuilder = CanalPacket.Messages.newBuilder();
                         for (CanalEntry.Entry entry : data.getEntries()) {
+                            if (filterTransactionEntry
+                                && (entry.getEntryType() == CanalEntry.EntryType.TRANSACTIONBEGIN || entry.getEntryType() == CanalEntry.EntryType.TRANSACTIONEND)) {
+                                continue;
+                            }
+
                             messageBuilder.addMessages(entry.toByteString());
                         }
 
diff --git a/server/src/main/java/com/alibaba/otter/canal/kafka/MessageSerializer.java b/server/src/main/java/com/alibaba/otter/canal/kafka/MessageSerializer.java
index 77caa0a6..39c297d8 100644
--- a/server/src/main/java/com/alibaba/otter/canal/kafka/MessageSerializer.java
+++ b/server/src/main/java/com/alibaba/otter/canal/kafka/MessageSerializer.java
@@ -2,6 +2,7 @@ package com.alibaba.otter.canal.kafka;
 
 import java.util.Map;
 
+import org.apache.commons.lang.BooleanUtils;
 import org.apache.kafka.common.serialization.Serializer;
 
 import com.alibaba.otter.canal.common.CanalMessageSerializer;
@@ -15,13 +16,20 @@ import com.alibaba.otter.canal.protocol.Message;
  */
 public class MessageSerializer implements Serializer<Message> {
 
+    private boolean filterTransactionEntry = false;
+
+    public MessageSerializer(){
+        this.filterTransactionEntry = BooleanUtils.toBoolean(System.getProperty("canal.instance.filter.transaction.entry",
+            "false"));
+    }
+
     @Override
     public void configure(Map<String, ?> configs, boolean isKey) {
     }
 
     @Override
     public byte[] serialize(String topic, Message data) {
-        return CanalMessageSerializer.serializer(data);
+        return CanalMessageSerializer.serializer(data, filterTransactionEntry);
     }
 
     @Override
diff --git a/server/src/main/java/com/alibaba/otter/canal/rocketmq/CanalRocketMQProducer.java b/server/src/main/java/com/alibaba/otter/canal/rocketmq/CanalRocketMQProducer.java
index 1cc6b109..6173cebd 100644
--- a/server/src/main/java/com/alibaba/otter/canal/rocketmq/CanalRocketMQProducer.java
+++ b/server/src/main/java/com/alibaba/otter/canal/rocketmq/CanalRocketMQProducer.java
@@ -47,7 +47,8 @@ public class CanalRocketMQProducer implements CanalMQProducer {
                      Callback callback) {
         if (!mqProperties.getFlatMessage()) {
             try {
-                Message message = new Message(destination.getTopic(), CanalMessageSerializer.serializer(data));
+                Message message = new Message(destination.getTopic(), CanalMessageSerializer.serializer(data,
+                    mqProperties.isFilterTransactionEntry()));
                 logger.debug("send message:{} to destination:{}, partition: {}",
                     message,
                     destination.getCanalDestination(),