【flinkCDC】Cannot read the binlog filename and position via ‘SHOW MASTER STATUS‘

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。

windows mysql5.7 开启binlog

Linux mysql5.7开启 binlog