canal.deployer-1.1.4阿里的版本。监听了一张表，然后我在这张表新增字段，然后爆了下面的错。请问是什么错。改怎么解决呢。
`2020-10-28 09:09:52.975 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] ERROR com.alibaba.otter.canal.common.alarm.LogAlarmHandler - destination:example[java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires.
at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102)
at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:263)
at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:258)
at java.lang.Thread.run(Thread.java:748)
]
2020-10-28 09:10:05.029 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] WARN c.a.o.c.p.inbound.mysql.rds.RdsBinlogEventParserProxy - ---> begin to find start position, it will be long time for reset or first position
2020-10-28 09:10:05.046 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] WARN c.a.o.c.p.inbound.mysql.rds.RdsBinlogEventParserProxy - ---> find start position successfully, EntryPosition[included=false,journalName=mysql-bin.002144,position=1248777,serverId=1657987186,gtid=25c59d87-751c-11e9-9a60-506b4bc22a72:1-58296017,timestamp=1603431907000] cost : 17ms , the next step is binlog dump
2020-10-28 09:10:05.080 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] ERROR c.a.o.canal.parse.inbound.mysql.dbsync.DirectLogFetcher - I/O error while reading from client socket
java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires.
at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102) ~[canal.parse-1.1.4.jar:na]
at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:263) [canal.parse-1.1.4.jar:na]
at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:258) [canal.parse-1.1.4.jar:na]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_221]
2020-10-28 09:10:05.080 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] ERROR c.a.o.c.p.inbound.mysql.rds.RdsBinlogEventParserProxy - dump address rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 has an error, retrying. caused by
java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires.
at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102) ~[canal.parse-1.1.4.jar:na]
at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:263) ~[canal.parse-1.1.4.jar:na]
at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:258) ~[canal.parse-1.1.4.jar:na]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_221]
2020-10-28 09:10:05.080 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] ERROR com.alibaba.otter.canal.common.alarm.LogAlarmHandler - destination:example[java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires.
at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102)
at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:263)
at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:258)
at java.lang.Thread.run(Thread.java:748)
]
2020-10-28 09:10:17.764 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] WARN c.a.o.c.p.inbound.mysql.rds.RdsBinlogEventParserProxy - ---> begin to find start position, it will be long time for reset or first position
2020-10-28 09:10:17.784 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] WARN c.a.o.c.p.inbound.mysql.rds.RdsBinlogEventParserProxy - ---> find start position successfully, EntryPosition[included=false,journalName=mysql-bin.002144,position=1248777,serverId=1657987186,gtid=25c59d87-751c-11e9-9a60-506b4bc22a72:1-58296017,timestamp=1603431907000] cost : 19ms , the next step is binlog dump
2020-10-28 09:10:17.810 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] ERROR c.a.o.canal.parse.inbound.mysql.dbsync.DirectLogFetcher - I/O error while reading from client socket
java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires.
at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102) ~[canal.parse-1.1.4.jar:na]
at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:263) [canal.parse-1.1.4.jar:na]
at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:258) [canal.parse-1.1.4.jar:na]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_221]
2020-10-28 09:10:17.810 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] ERROR c.a.o.c.p.inbound.mysql.rds.RdsBinlogEventParserProxy - dump address rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 has an error, retrying. caused by
java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires.
at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102) ~[canal.parse-1.1.4.jar:na]
at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:263) ~[canal.parse-1.1.4.jar:na]
at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:258) ~[canal.parse-1.1.4.jar:na]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_221]
2020-10-28 09:10:17.811 [destination = example , address = rm-uf6t1yrnj50u66206ao.mysql.rds.aliyuncs.com/47.101.21.97:3306 , EventParser] ERROR com.alibaba.otter.canal.common.alarm.LogAlarmHandler - destination:example[java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires.
at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102)
at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:263)
at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:258)
at java.lang.Thread.run(Thread.java:748)
`
