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https://issues.apache.org/jira/browse/FLINK-27611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zili Chen resolved FLINK-27611.
-------------------------------
Resolution: Fixed
https://github.com/apache/flink/pull/20725
> ConcurrentModificationException during Flink-Pulsar checkpoint notification
> ---------------------------------------------------------------------------
>
> Key: FLINK-27611
> URL: https://issues.apache.org/jira/browse/FLINK-27611
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Pulsar
> Affects Versions: 1.15.0
> Reporter: Jason Kania
> Assignee: Yufan Sheng
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.16.0, 1.14.6, 1.15.3
>
>
> When attempting to run a job that was working in 1.12.7, but upgraded to
> 1.15.0, the following exception is occurring outside of the control of my own
> code:
>
> java.util.ConcurrentModificationException
> at
> java.base/java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1208)
> at java.base/java.util.TreeMap$EntryIterator.next(TreeMap.java:1244)
> at java.base/java.util.TreeMap$EntryIterator.next(TreeMap.java:1239)
> at
> org.apache.flink.connector.pulsar.source.reader.source.PulsarUnorderedSourceReader.notifyCheckpointComplete(PulsarUnorderedSourceReader.java:129)
> at
> org.apache.flink.streaming.api.operators.SourceOperator.notifyCheckpointComplete(SourceOperator.java:511)
> at
> org.apache.flink.streaming.runtime.tasks.StreamOperatorWrapper.notifyCheckpointComplete(StreamOperatorWrapper.java:104)
> at
> org.apache.flink.streaming.runtime.tasks.RegularOperatorChain.notifyCheckpointComplete(RegularOperatorChain.java:145)
> at
> org.apache.flink.streaming.runtime.tasks.SubtaskCheckpointCoordinatorImpl.notifyCheckpoint(SubtaskCheckpointCoordinatorImpl.java:409)
> at
> org.apache.flink.streaming.runtime.tasks.SubtaskCheckpointCoordinatorImpl.notifyCheckpointComplete(SubtaskCheckpointCoordinatorImpl.java:343)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.notifyCheckpointComplete(StreamTask.java:1384)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$notifyCheckpointCompleteAsync$14(StreamTask.java:1325)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$notifyCheckpointOperation$17(StreamTask.java:1364)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.runThrowing(StreamTaskActionExecutor.java:50)
> at org.apache.flink.streaming.runtime.tasks.mailbox.Mail.run(Mail.java:90)
> at
> org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMailsWhenDefaultActionUnavailable(MailboxProcessor.java:338)
> at
> org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMail(MailboxProcessor.java:324)
> at
> org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:201)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:804)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:753)
> at
> org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:948)
> at
> org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:927)
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:741)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:563)
> at java.base/java.lang.Thread.run(Thread.java:829)
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