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Posted to reviews@iotdb.apache.org by GitBox <gi...@apache.org> on 2022/08/25 08:30:43 UTC

[GitHub] [iotdb] xingtanzjr commented on pull request #7126: [IOTDB-4235] Fix deadlock in cancel query and timeout detect thread

xingtanzjr commented on PR #7126:
URL: https://github.com/apache/iotdb/pull/7126#issuecomment-1226948952

   This fix also explains the issue that lots of write operations are suspended, which leads to increase of InternalServiceRPC threads. 
   
   The direct cause is that all threads in pool `MPPCoordinator` are occupied when the stateMachine revoking `releaseResource()`. They are blocked when invoking SourceHandle.abort(), which is caused by the issue in this PR


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