[jira] [Created] (HADOOP-14519) Client$Connection#waitForWork may suffer spurious wakeup

["John Zhuge (JIRA)" <ji...@apache.org>]

John Zhuge created HADOOP-14519:
-----------------------------------

             Summary: Client$Connection#waitForWork may suffer spurious wakeup
                 Key: HADOOP-14519
                 URL: https://issues.apache.org/jira/browse/HADOOP-14519
             Project: Hadoop Common
          Issue Type: Bug
          Components: ipc
    Affects Versions: 2.8.0
            Reporter: John Zhuge
            Assignee: John Zhuge
            Priority: Critical


{{Client$Connection#waitForWork}} may suffer spurious wakeup because the {{wait}} is not surrounded by a loop. See [https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html#wait()].

{code:title=Client$Connection#waitForWork}
      if (calls.isEmpty() && !shouldCloseConnection.get() && running.get())  {
        long timeout = maxIdleTime-
              (Time.now()-lastActivity.get());
        if (timeout>0) {
          try {
            wait(timeout);                          <<<<<<==== spurious wakeup
          } catch (InterruptedException e) {}
        }
      }
{code}



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