canal 连续运行两天左右，就会出现 异常，不稳定

看不出来是什么影响的，canal 没有出错恢复的机制吗？

com.alibaba.otter.canal.parse.exception.CanalParseException: parse row data failed., at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:220) [canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:145) [canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.query(MysqlConnection.java:87) [canal.parse-1.0.25.jar:na], Caused by: com.alibaba.otter.canal.parse.exception.CanalParseException: com.google.common.util.concurrent.UncheckedExecutionException: java.io.IOException: should execute connector.connect() first, Caused by: com.google.common.util.concurrent.UncheckedExecutionException: java.io.IOException: should execute connector.connect() first, at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4832) ~[guava-18.0.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.getTableMeta(LogEventConvert.java:759) ~[canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.getTableMeta(TableMetaCache.java:160) ~[canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parseRowsEvent(LogEventConvert.java:428) ~[canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parse(LogEventConvert.java:114) ~[canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parse(LogEventConvert.java:66) ~[canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.AbstractEventParser.parseAndProfilingIfNecessary(AbstractEventParser.java:337) ~[canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3$1.sink(AbstractEventParser.java:184) ~[canal.parse-1.0.25.jar:na], at java.lang.Thread.run(Thread.java:748) [na:1.8.0_171], Caused by: java.io.IOException: should execute connector.connect() first, at com.alibaba.otter.canal.parse.driver.mysql.MysqlQueryExecutor.(MysqlQueryExecutor.java:30) ~[canal.parse.driver-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.getTableMetaByDB(TableMetaCache.java:80) ~[canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.access$000(TableMetaCache.java:30) ~[canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache$1.load(TableMetaCache.java:55) ~[canal.parse-1.0.25.jar:na], at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache$1.load(TableMetaCache.java:50) ~[canal.parse-1.0.25.jar:na], at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527) ~[guava-18.0.jar:na], at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319) ~[guava-18.0.jar:na], at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282) ~[guava-18.0.jar:na], at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197) ~[guava-18.0.jar:na], at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941) ~[guava-18.0.jar:na], at com.google.common.cache.LocalCache.get(LocalCache.java:3937) ~[guava-18.0.jar:na], at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824) ~[guava-18.0.jar:na], at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4830) ~[guava-18.0.jar:na], ... 10 common frames omitted

同时连接了3个数据库实例，只有其中一个实例down掉了，并且似乎没有办法恢复

原提问者GitHub用户libra1010