canal 程序启动 运行一段时间后，就一直报这个超时的错！

`2018-08-21 05:51:48.895 [destination = zaful , address = /127.0.0.1:3306 , EventParser] WARN c.a.otter.canal.parse.inbound.mysql.MysqlEventParser - prepare to find start position just last position {"identity":{"slaveId":-1,"sourceAddress":{"address":"127.0.0.1","port":3306}},"postion":{"gtid":"","included":false,"journalName":"binlog.002535","position":157229530,"serverId":97153,"timestamp":1534833018000}} 2018-08-21 05:51:48.895 [destination = zaful , address = /127.0.0.1:3306 , EventParser] WARN c.a.otter.canal.parse.inbound.mysql.MysqlEventParser - find start position : EntryPosition[included=false,journalName=binlog.002535,position=157229530,serverId=97153,gtid=,timestamp=1534833018000] 2018-08-21 05:52:36.469 [destination = zaful , address = /127.0.0.1:3306 , EventParser] ERROR c.a.o.canal.parse.inbound.mysql.dbsync.DirectLogFetcher - Socket timeout expired, closing connection java.net.SocketTimeoutException: Timeout occurred, failed to read 9471 bytes in 25000 milliseconds. at com.alibaba.otter.canal.parse.driver.mysql.socket.BioSocketChannel.read(BioSocketChannel.java:123) ~[canal.parse.driver-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch0(DirectLogFetcher.java:174) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:85) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:206) [canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:240) [canal.parse-1.0.26-SNAPSHOT.jar:na] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91] 2018-08-21 05:52:36.470 [destination = zaful , address = /127.0.0.1:3306 , EventParser] ERROR c.a.otter.canal.parse.inbound.mysql.MysqlEventParser - dump address 127.0.0.1/127.0.0.1:3306 has an error, retrying. **caused by _### **###

java.net.SocketTimeoutException: Timeout occurred, failed to read 9471 bytes in 25000 milliseconds

_. at com.alibaba.otter.canal.parse.driver.mysql.socket.BioSocketChannel.read(BioSocketChannel.java:123) ~[canal.parse.driver-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch0(DirectLogFetcher.java:174) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:85) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:206) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:240) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91] 2018-08-21 05:52:36.470 [destination = zaful , address = /127.0.0.1:3306 , EventParser] ERROR com.alibaba.otter.canal.common.alarm.LogAlarmHandler - destination:zaful[java.net.SocketTimeoutException: Timeout occurred, failed to read 9471 bytes in 25000 milliseconds. at com.alibaba.otter.canal.parse.driver.mysql.socket.BioSocketChannel.read(BioSocketChannel.java:123) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch0(DirectLogFetcher.java:174) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:85) at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:206) at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:240) at java.lang.Thread.run(Thread.java:745) ]`

程序启动 运行一段时间后，就一直报这个错！每次fetch超时后，就会kill掉和Mysql的connection，然后又重试，接着又超时，一直这样子死循环，重启也没有用，但是删除掉meta.dat后，能够正常运行一段时间，之后又会报超时的错误。 实在不能理解在有很多binlog文件没有消费的情况下，为什么读几kb数据花25s都读不完！！ 有遇到相同问题的同仁吗？

原提问者GitHub用户fangchunsheng