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https://issues.apache.org/jira/browse/FLINK-34866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17923896#comment-17923896
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Yohei Yoshimuta commented on FLINK-34866:
-----------------------------------------
I encountered the same issue before, but upgrading Flink-CDC to 3.3.0 resolved
it in my case. I believe this issue can now be closed.
> [Bug] Meet NoClassDefFoundError when add new table in mysql cdc source
> ----------------------------------------------------------------------
>
> Key: FLINK-34866
> URL: https://issues.apache.org/jira/browse/FLINK-34866
> Project: Flink
> Issue Type: Bug
> Components: Flink CDC
> Reporter: Flink CDC Issue Import
> Priority: Major
> Labels: github-import
>
> ### Search before asking
> - [X] I searched in the
> [issues|https://github.com/ververica/flink-cdc-connectors/issues) and found
> nothing similar.
> ### Flink version
> 1.18
> ### Flink CDC version
> 3.0.1
> ### Database and its version
> source: mysql: 5.7
> sink: file system
> ### Minimal reproduce step
> 1. create mysql cdc flink job
> 2. add new table in mysql source
> meet exception:
> java.lang.RuntimeException: One or more fetchers have encountered exception
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcherManager.checkErrors(SplitFetcherManager.java:263)
> at
> org.apache.flink.connector.base.source.reader.SourceReaderBase.getNextFetch(SourceReaderBase.java:185)
> at
> org.apache.flink.connector.base.source.reader.SourceReaderBase.pollNext(SourceReaderBase.java:147)
> at
> org.apache.flink.streaming.api.operators.SourceOperator.emitNext(SourceOperator.java:419)
> 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:562)
> at
> org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:231)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:858)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:807)
> at
> org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:953)
> at
> org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:932)
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:746)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:562)
> at java.lang.Thread.run(Thread.java:750)
> Caused by: java.lang.NoClassDefFoundError:
> com/ververica/cdc/common/utils/StringUtils
> at
> com.ververica.cdc.connectors.mysql.source.utils.RecordUtils.isTableChangeRecord(RecordUtils.java:395)
> at
> com.ververica.cdc.connectors.mysql.debezium.reader.BinlogSplitReader.shouldEmit(BinlogSplitReader.java:258)
> at
> com.ververica.cdc.connectors.mysql.debezium.reader.BinlogSplitReader.pollSplitRecords(BinlogSplitReader.java:165)
> at
> com.ververica.cdc.connectors.mysql.source.reader.MySqlSplitReader.pollSplitRecords(MySqlSplitReader.java:125)
> at
> com.ververica.cdc.connectors.mysql.source.reader.MySqlSplitReader.fetch(MySqlSplitReader.java:87)
> 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:165)
> at
> org.apache.flink.connector.base.source.reader.fetcher.SplitFetcher.run(SplitFetcher.java:117)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624]
> ... 1 more
> ### What did you expect to see?
> should not capture exception when add new table on mysql cdc source
> ### What did you see instead?
> meet java.lang.NoClassDefFoundError Exception and job failover
> ### Anything else?
> _No response_
> ### Are you willing to submit a PR?
> - [X] I'm willing to submit a PR!
> ---------------- Imported from GitHub ----------------
> Url: https://github.com/apache/flink-cdc/issues/3035
> Created by: [pengmide|https://github.com/pengmide]
> Labels: bug,
> Created at: Fri Jan 26 09:20:19 CST 2024
> State: open
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