运行一段时间 总是报这个错误, 版本1.0.26
com.alibaba.otter.canal.parse.exception.CanalParseException: parse row data failed. 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.TableMetaCache.getTableMeta(TableMetaCache.java:160) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.getTableMeta(LogEventConvert.java:759) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parseRowsEvent(LogEventConvert.java:428) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parse(LogEventConvert.java:114) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parse(LogEventConvert.java:66) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.AbstractEventParser.parseAndProfilingIfNecessary(AbstractEventParser.java:337) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3$1.sink(AbstractEventParser.java:184) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:145) [canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:220) [canal.parse-1.0.26-SNAPSHOT.jar:na] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_161] 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-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.query(MysqlConnection.java:87) [canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.getTableMetaByDB(TableMetaCache.java:80) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.access$000(TableMetaCache.java:30) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache$1.load(TableMetaCache.java:55) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache$1.load(TableMetaCache.java:50) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.google.common.cache.LocalCache$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$Segment.get(LocalCache.java:2197) ~[guava-18.0.jar:na] at com.google.common.cache.LocalCache.get(LocalCache.java:3937) ~[guava-18.0.jar:na] at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941) ~[guava-18.0.jar:na] at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824) ~[guava-18.0.jar:na] at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4830) ~[guava-18.0.jar:na] ... 10 common frames omitted 2018-07-17 10:48:26.646 [destination = example , address = /172.16.203.11:3309 , EventParser] ERROR c.a.otter.canal.parse.inbound.mysql.MysqlEventParser - dump address 172.16.203.11/172.16.203.11:3309 has an error, retrying. caused by com.alibaba.otter.canal.parse.exception.CanalParseException: com.alibaba.otter.canal.parse.exception.CanalParseException: parse row data failed. Caused by: com.alibaba.otter.canal.parse.exception.CanalParseException: parse row data failed. Caused by: com.alibaba.otter.canal.parse.exception.CanalParseException: com.google.common.util.concurrent.UncheckedExecutionException: java.io.IOException: should execute connector.connect() first Caused by: com.google.common.util.concurrent.UncheckedExecutionException: java.io.IOException: should execute connector.connect() first at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4832) ~[guava-18.0.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.getTableMeta(TableMetaCache.java:160) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.getTableMeta(LogEventConvert.java:759) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parseRowsEvent(LogEventConvert.java:428) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parse(LogEventConvert.java:114) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parse(LogEventConvert.java:66) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.AbstractEventParser.parseAndProfilingIfNecessary(AbstractEventParser.java:337) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3$1.sink(AbstractEventParser.java:184) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:145) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:220) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_161] 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-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.query(MysqlConnection.java:87) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.getTableMetaByDB(TableMetaCache.java:80) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.access$000(TableMetaCache.java:30) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache$1.load(TableMetaCache.java:55) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache$1.load(TableMetaCache.java:50) ~[canal.parse-1.0.26-SNAPSHOT.jar:na] at com.google.common.cache.LocalCache$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$Segment.get(LocalCache.java:2197) ~[guava-18.0.jar:na] at com.google.common.cache.LocalCache.get(LocalCache.java:3937) ~[guava-18.0.jar:na] at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941) ~[guava-18.0.jar:na] at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824) ~[guava-18.0.jar:na] at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4830) ~[guava-18.0.jar:na] ... 10 common frames omitted 2018-07-17 10:48:26.646 [destination = example , address = /172.16.203.11:3309 , EventParser] ERROR com.alibaba.otter.canal.common.alarm.LogAlarmHandler - destination:example[com.alibaba.otter.canal.parse.exception.CanalParseException: com.alibaba.otter.canal.parse.exception.CanalParseException: parse row data failed. Caused by: com.alibaba.otter.canal.parse.exception.CanalParseException: parse row data failed. Caused by: com.alibaba.otter.canal.parse.exception.CanalParseException: com.google.common.util.concurrent.UncheckedExecutionException: java.io.IOException: should execute connector.connect() first Caused by: com.google.common.util.concurrent.UncheckedExecutionException: java.io.IOException: should execute connector.connect() first at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4832) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.getTableMeta(TableMetaCache.java:160) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.getTableMeta(LogEventConvert.java:759) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parseRowsEvent(LogEventConvert.java:428) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parse(LogEventConvert.java:114) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parse(LogEventConvert.java:66) at com.alibaba.otter.canal.parse.inbound.AbstractEventParser.parseAndProfilingIfNecessary(AbstractEventParser.java:337) at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3$1.sink(AbstractEventParser.java:184) at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:145) at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:220) at java.lang.Thread.run(Thread.java:748) Caused by: java.io.IOException: should execute connector.connect() first at com.alibaba.otter.canal.parse.driver.mysql.MysqlQueryExecutor.(MysqlQueryExecutor.java:30) at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.query(MysqlConnection.java:87) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.getTableMetaByDB(TableMetaCache.java:80) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.access$000(TableMetaCache.java:30) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache$1.load(TableMetaCache.java:55) at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache$1.load(TableMetaCache.java:50) at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527) at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319) at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282) at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197) at com.google.common.cache.LocalCache.get(LocalCache.java:3937) at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941) at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824) at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4830) ... 10 more ]
原提问者GitHub用户zyheric
Canal Server 在解析 Binlog 数据时出现了异常,并且在异常信息中提示 "java.io.IOException: should execute connector.connect() first"。这种情况通常是由于 Canal Server 和数据库之间的连接断开或者无法建立连接导致的。
针对这种情况,可能的原因如下:
数据库连接问题:Canal Server 无法连接到数据库,或者与数据库之间的连接中断,导致解析 Binlog 数据失败。 Canal Server 版本问题:Canal Server 的版本与数据库不兼容,存在 bug 或者其他问题,导致解析 Binlog 数据失败。 针对这种情况,您可以按照以下步骤进行排查和解决问题:
检查数据库连接:确保 Canal Server 和数据库之间的连接正常,可以尝试通过命令行或者其他工具连接到数据库,检查连接是否正常。 检查 Canal Server 配置:检查 Canal Server 的配置信息,确保连接信息、用户名密码等配置正确。 升级或降级 Canal Server 版本:如果验证数据库连接正常且配置信息无误,可以尝试升级或降级 Canal Server 版本,避免版本不兼容导致的问题。
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