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fixed issue #483 , support show slave hosts

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agapple
2018-01-10 14:35:26 +08:00
parent 9316a3df6d
commit 91ac0e30aa
4 changed files with 195 additions and 4 deletions
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35
parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java
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@@ -14,7 +14,9 @@ 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.client.SemiAckCommandPacket;
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;
@@ -130,6 +132,7 @@ public class MysqlConnection implements ErosaConnection {
public void dump(String binlogfilename, Long binlogPosition, SinkFunction func) throws IOException {
updateSettings();
sendRegisterSlave();
sendBinlogDump(binlogfilename, binlogPosition);
DirectLogFetcher fetcher = new DirectLogFetcher(connector.getReceiveBufferSize());
fetcher.start(connector.getChannel());
@@ -157,11 +160,40 @@ public class MysqlConnection implements ErosaConnection {
throw new NullPointerException("Not implement yet");
}
private void sendRegisterSlave() throws IOException {
RegisterSlaveCommandPacket cmd = new RegisterSlaveCommandPacket();
cmd.reportHost = authInfo.getAddress().getAddress().getHostAddress();
cmd.reportPasswd = authInfo.getPassword();
cmd.reportUser = authInfo.getUsername();
cmd.reportPort = authInfo.getAddress().getPort(); // 暂时先用master节点的port
cmd.serverId = this.slaveId;
byte[] cmdBody = cmd.toBytes();
logger.info("Register slave {}", cmd);
HeaderPacket header = new HeaderPacket();
header.setPacketBodyLength(cmdBody.length);
header.setPacketSequenceNumber((byte) 0x00);
PacketManager.writePkg(connector.getChannel(), header.toBytes(), cmdBody);
header = PacketManager.readHeader(connector.getChannel(), 4);
byte[] body = PacketManager.readBytes(connector.getChannel(), header.getPacketBodyLength());
assert body != null;
if (body[0] < 0) {
if (body[0] == -1) {
ErrorPacket err = new ErrorPacket();
err.fromBytes(body);
throw new IOException("Error When doing Register slave:" + err.toString());
} else {
throw new IOException("unpexpected packet with field_count=" + body[0]);
}
}
}
private void sendBinlogDump(String binlogfilename, Long binlogPosition) throws IOException {
BinlogDumpCommandPacket binlogDumpCmd = new BinlogDumpCommandPacket();
binlogDumpCmd.binlogFileName = binlogfilename;
binlogDumpCmd.binlogPosition = binlogPosition;
// binlogDumpCmd.slaveServerId = this.slaveId;
binlogDumpCmd.slaveServerId = this.slaveId;
byte[] cmdBody = binlogDumpCmd.toBytes();
@@ -185,7 +217,6 @@ public class MysqlConnection implements ErosaConnection {
semiAckHeader.setPacketBodyLength(cmdBody.length);
semiAckHeader.setPacketSequenceNumber((byte) 0x00);
PacketManager.writePkg(connector.getChannel(), semiAckHeader.toBytes(), cmdBody);
}
public MysqlConnection fork() {