时不时会报异常，然后就同步不了，产生大量日志

开始报：

pid:3 nid:3 exception:canal:canal-mkkq:java.io.IOException: Connection reset by peer at sun.nio.ch.FileDispatcherImpl.read0(Native Method) at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39) at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) at sun.nio.ch.IOUtil.read(IOUtil.java:197) at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch0(DirectLogFetcher.java:154) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:70) at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:113) at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:209) at java.lang.Thread.run(Thread.java:745)

然后报大量的：

pid:3 nid:3 exception:canal:canal-mkkq:java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = Could not find first log file name in binary log index file at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:95) at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:113) at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:209) at java.lang.Thread.run(Thread.java:745)

中间间隔性的报：

pid:3 nid:3 exception:mainstem:pid:3 canal elapsed 50 seconds no data

这种不稳定性，导致每天需要上来看看没有报异常才能保证业务正常运行了

原提问者GitHub用户 duson