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修复：MASTER_HEARTBEAT_PERIOD 的计量单位是秒（可以包含3位小数表示毫秒），但不是纳秒。

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This commit is contained in:
Wu-Jianqiang
2018-02-26 16:31:58 +08:00
parent 8ad603fea4
commit 06e7f44114
1 changed files with 8 additions and 2 deletions
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10
parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java
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@@ -297,9 +297,15 @@ public class MysqlConnection implements ErosaConnection {
logger.warn("update mariadb_slave_capability failed", e);
}
long periodNano = TimeUnit.SECONDS.toNanos(MASTER_HEARTBEAT_PERIOD_SECONDS);
/**
* MASTER_HEARTBEAT_PERIOD sets the interval in seconds between replication heartbeats.
* Whenever the master's binary log is updated with an event, the waiting period for the next heartbeat is reset.
* interval is a decimal value having the range 0 to 4294967 seconds and a resolution in milliseconds;
* the smallest nonzero value is 0.001. Heartbeats are sent by the master only if there are no unsent events
* in the binary log file for a period longer than interval.
*/
try {
update("SET @master_heartbeat_period=" + periodNano);
update("SET @master_heartbeat_period=" + MASTER_HEARTBEAT_PERIOD_SECONDS);
} catch (Exception e) {
logger.warn("update master_heartbeat_period failed", e);
}