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From "Lin Yiqun (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-10185) TestHFlushInterrupted verifies interrupt state incorrectly
Date Mon, 21 Mar 2016 04:07:25 GMT
Lin Yiqun created HDFS-10185:

             Summary: TestHFlushInterrupted verifies interrupt state incorrectly
                 Key: HDFS-10185
                 URL: https://issues.apache.org/jira/browse/HDFS-10185
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: test
            Reporter: Lin Yiqun
            Assignee: Lin Yiqun

In unit test {{TestHFlush#testHFlushInterrupted}}, there were some places verifying interrupt
state incorrectly. As follow:
      try {
        // If we made it past the hflush(), then that means that the ack made it back
       // from the pipeline before we got to the wait() call. In that case we should
        // still have interrupted status.
      } catch (InterruptedIOException ie) {
        System.out.println("Got expected exception during flush");
When stm do the {{hflush}} operation, it will throw interrupted exception and the {{assertTrue(Thread.interrupted())}}
will not be execute. And if you put this before the {{hflush}}, this method will clear interrupted
state and the expected exception will not be throw. The similar problem also appears after
in stm.close.
So we should use a way to get state without clearing interrupted state like {{Thread.currentThread().isInterrupted()}}.

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