[jira] [Created] (NIFI-9603) When a processor group is stopped or started in the UI, the thread cannot execute any tasks

["liuke (Jira)" <ji...@apache.org>]

liuke created NIFI-9603:
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             Summary: When a processor group is stopped or started in the UI, the thread 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
         Attachments: description.docx

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 interface activethreadcount 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 300 thread, one of which is timed_ Waiting, stack information is，The remaining 299 are waiting and the stack information is



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