Binlog Dump 状态
Binlog Dump 状态一共4个
1 Sending binlog event to slave
已经读出来,正在发送
2 Finished reading one binlog; switching to next binlog
The thread has finished reading a binary log file and is opening the next one to send to the slave.
3 Master has sent all binlog to slave; waiting for binlog to be updated
等着新的binlog产生
4 Waiting to finalize termination
线程停止时候一个短暂状态