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https://issues.apache.org/jira/browse/NIFI-9603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17480073#comment-17480073
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liuke commented on NIFI-9603:
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At present, the company's production environment cannot be upgraded
immediately. Can you help us look at this problem first? If it can't be solved,
we'll consider upgrading to the latest version. Thank you.
> When a processor group is stopped or started in the UI, the thread pool
> cannot execute any tasks
> ------------------------------------------------------------------------------------------------
>
> Key: NIFI-9603
> URL: https://issues.apache.org/jira/browse/NIFI-9603
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.9.0
> Environment: nifi version:1.9.0
> Server：CentOS Linux release 7.9.2009
> Deployment mode: 5-node cluster
> The maximum timer driven thread count is set to 350
> JDK version is "1.8.0_181"
> Reporter: liuke
> Priority: Major
> Attachments: description.pdf, dump.log, nifi-app_2022-01-21_09.34.log
>
> Original Estimate: 192h
> Remaining Estimate: 192h
>
> See the attachment for the picture
>
> Problem phenomenon
> # This problem is probably triggered when a processor group (including
> multiple processors) is stopped in the interface
> # Nifi cluster UI “Active Thread Count”becomes 0
> # The task cannot be executed. The UI shows that the thread is stuck
> # Analysis using jstack，The stack information is intercepted many times at a
> long time interval, and the information is the following results: total
> 350 thread, one of which is timed_ Waiting, The remaining 349 are waiting
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