[jira] [Created] (HDFS-12152) [SPS]: Re-arrange StoragePolicySatisfyWorker stopping sequence to improve thread cleanup time

["Rakesh R (JIRA)" <ji...@apache.org>]

Rakesh R created HDFS-12152:
-------------------------------

             Summary: [SPS]: Re-arrange StoragePolicySatisfyWorker stopping sequence to improve thread cleanup time
                 Key: HDFS-12152
                 URL: https://issues.apache.org/jira/browse/HDFS-12152
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Rakesh R
            Assignee: Rakesh R


This jira to improve the StoragePolicySatisfyWorker#stop sequence of steps to improve the thread interruption and graceful shutdown quickly.

I have observed that [TestDataNodeUUID#testUUIDRegeneration|https://builds.apache.org/job/PreCommit-HDFS-Build/20271/testReport/org.apache.hadoop.hdfs.server.datanode/TestDataNodeUUID/testUUIDRegeneration/] test case is getting timed out frequently. When analyzing, it looks like the below function is always taking 3 secs waiting period. Probably, we could improve the thread interruption sequence so that the thread should finish #run method quickly.

{code}
StoragePolicySatisfyWorker.java

  void waitToFinishWorkerThread() {
    try {
      movementTrackerThread.join(3000);
    } catch (InterruptedException ignore) {
      // ignore
    }
  }
{code}



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