执行flinkCDC同步时候报错了：
2023-08-10 14:50:48
java.lang.RuntimeException: One or more fetchers have encountered exception
at org.apache.flink.connector.base.source.reader.fetcher.SplitFetcherManager.checkErrors(SplitFetcherManager.java:261)
at org.apache.flink.connector.base.source.reader.SourceReaderBase.getNextFetch(SourceReaderBase.java:169)
at org.apache.flink.connector.base.source.reader.SourceReaderBase.pollNext(SourceReaderBase.java:131)
at org.apache.flink.streaming.api.operators.SourceOperator.emitNext(SourceOperator.java:417)
at org.apache.flink.streaming.runtime.io.StreamTaskSourceInput.emitNext(StreamTaskSourceInput.java:68)
at org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:65)
at org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:550)
at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:231)
at org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:839)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:788)
at org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:952)
at org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:931)
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:745)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:562)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: SplitFetcher thread 0 received unexpected exception while polling the records
at org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.runOnce(SplitFetcher.java:165)
at org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.run(SplitFetcher.java:114)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
... 1 more
Caused by: org.apache.flink.util.FlinkRuntimeException: Read split MySqlSnapshotSplit{tableId=_tenant.company_info, splitId='_tenant.company_info:0', splitKeyType=[`id` BIGINT NOT NULL], splitStart=null, splitEnd=null, highWatermark=null} error due to org.apache.flink.util.FlinkRuntimeException: Cannot read the binlog filename and position via 'SHOW MASTER STATUS'. Make sure your server is correctly configured.
at com.ververica.cdc.connectors.mysql.debezium.reader.SnapshotSplitReader.checkReadException(SnapshotSplitReader.java:306)
at com.ververica.cdc.connectors.mysql.debezium.reader.SnapshotSplitReader.pollSplitRecords(SnapshotSplitReader.java:253)
at com.ververica.cdc.connectors.mysql.source.reader.MySqlSplitReader.fetch(MySqlSplitReader.java:76)
at org.apache.flink.connector.base.source.reader.fetcher.FetchTask.run(FetchTask.java:58)
at org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.runOnce(SplitFetcher.java:162)
... 6 more
Caused by: io.debezium.DebeziumException: org.apache.flink.util.FlinkRuntimeException: Cannot read the binlog filename and position via 'SHOW MASTER STATUS'. Make sure your server is correctly configured
at com.ververica.cdc.connectors.mysql.debezium.task.MySqlSnapshotSplitReadTask.execute(MySqlSnapshotSplitReadTask.java:120)
at com.ververica.cdc.connectors.mysql.debezium.reader.SnapshotSplitReader.lambda$submitSplit$0(SnapshotSplitReader.java:130)
... 5 more
Caused by: org.apache.flink.util.FlinkRuntimeException: Cannot read the binlog filename and position via 'SHOW MASTER STATUS'. Make sure your server is correctly configured
at com.ververica.cdc.connectors.mysql.debezium.DebeziumUtils.lambda$currentBinlogOffset$0(DebeziumUtils.java:123)
at io.debezium.jdbc.JdbcConnection.queryAndMap(JdbcConnection.java:649)
at io.debezium.jdbc.JdbcConnection.queryAndMap(JdbcConnection.java:517)
at com.ververica.cdc.connectors.mysql.debezium.DebeziumUtils.currentBinlogOffset(DebeziumUtils.java:110)
at com.ververica.cdc.connectors.mysql.debezium.task.MySqlSnapshotSplitReadTask.doExecute(MySqlSnapshotSplitReadTask.java:143)
at com.ververica.cdc.connectors.mysql.debezium.task.MySqlSnapshotSplitReadTask.execute(MySqlSnapshotSplitReadTask.java:115)
... 6 more
Cannot read the binlog filename and position via 'SHOW MASTER STATUS'. Make sure your server is correctly configured。
无法通过“SHOW MASTER STATUS”读取binlog文件名和位置。确保服务器配置正确
去查看服务是否开启binlog
清楚了。没有开启开启binlog。开启了就好了。