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https://issues.apache.org/jira/browse/ARTEMIS-1891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16492579#comment-16492579
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ASF GitHub Bot commented on ARTEMIS-1891:
-----------------------------------------

Github user franz1981 commented on the issue:

    https://github.com/apache/activemq-artemis/pull/2114
  
    Please clean up commits by squashing them into one, add a test (if 
possible) and consider to improve
    both the JIRA and commit message with a clear explanation of what is 
fixing, why and how :+1: 


> Sending synchronization finished packet starves when thread pool is full
> ------------------------------------------------------------------------
>
>                 Key: ARTEMIS-1891
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1891
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>          Components: Broker
>            Reporter: yangwei
>            Priority: Major
>         Attachments: synchronization_timeout.stack
>
>
> After sending pages, the thread will hold the storage manager write lock and 
> send synchronization finished packet(use the parent thread pool) to the 
> backup node. At the same time, thread pool is full bcs they are waiting for 
> the storage manager read lock to write the page or journal, leading to 
> replication starting failure.



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