Question

我在Kafka上运行了debezium mysql源连接器。我添加了另一个使用相同数据库但数据格式不同的debezium mysql源连接器。结果，我的第一个连接器开始显示以下错误：

[2019-07-11 10:29:09,125] ERROR WorkerSourceTask{id=debezium-connector-0} Task threw an uncaught and unrecoverable exception 
(org.apache.kafka.connect.runtime.WorkerTask:177)
org.apache.kafka.connect.errors.ConnectException: Encountered change event for table db.user whose schema isn't known to this connector
at io.debezium.connector.mysql.AbstractReader.wrap(AbstractReader.java:230)
at io.debezium.connector.mysql.AbstractReader.failed(AbstractReader.java:208)
at io.debezium.connector.mysql.BinlogReader.handleEvent(BinlogReader.java:508)
at com.github.shyiko.mysql.binlog.BinaryLogClient.notifyEventListeners(BinaryLogClient.java:1095)
at com.github.shyiko.mysql.binlog.BinaryLogClient.listenForEventPackets(BinaryLogClient.java:943)
at com.github.shyiko.mysql.binlog.BinaryLogClient.connect(BinaryLogClient.java:580)
at com.github.shyiko.mysql.binlog.BinaryLogClient$7.run(BinaryLogClient.java:825)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.kafka.connect.errors.ConnectException: Encountered change event for table db.user whose schema isn't known to this connector
at io.debezium.connector.mysql.BinlogReader.informAboutUnknownTableIfRequired(BinlogReader.java:758)
at io.debezium.connector.mysql.BinlogReader.handleUpdateTableMetadata(BinlogReader.java:733)
at io.debezium.connector.mysql.BinlogReader.handleEvent(BinlogReader.java:492)
... 5 more
[2019-07-11 10:29:09,125] ERROR WorkerSourceTask{id=debezium- 
connector-krazybee-0} Task is being killed and will not recover 
until manually restarted 
(org.apache.kafka.connect.runtime.WorkerTask:178)
[2019-07-11 10:29:09,125] INFO Stopping MySQL connector task 
(io.debezium.connector.mysql.MySqlConnectorTask:430)
[2019-07-11 10:29:09,125] INFO ChainedReader: Stopping the binlog 
reader (io.debezium.connector.mysql.ChainedReader:121)
[2019-07-11 10:29:09,126] INFO Discarding 0 unsent record(s) due 
to the connector shutting down 
(io.debezium.connector.mysql.BinlogReader:129)
[2019-07-11 10:29:09,126] INFO Discarding 0 unsent record(s) due to the connector shutting down (io.debezium.connector.mysql.BinlogReader:129)

我已使用REST API重新启动了debezium连接器。

尽管据我所知，debezium连接器在数据库历史记录模式中存在不匹配，但是无法弄清楚如何在不删除现有连接器的情况下进行纠正。

我还使用PUT请求向现有连接器重新加载了以前的值，但没有用。

Answer 1

我相信您对两个连接器使用相同的database.history.kafka.topic。您应该为每个实例使用unqiue主题。

Debezium CDC连接器任务出现错误：javax.management.InstanceAlreadyExistsException

1 个答案: