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Posted to yarn-issues@hadoop.apache.org by "Lohit Vijayarenu (JIRA)" <ji...@apache.org> on 2013/02/14 01:02:12 UTC

[jira] [Created] (YARN-402) Dispatcher warn message is too late

Lohit Vijayarenu created YARN-402:
-------------------------------------

             Summary: Dispatcher warn message is too late
                 Key: YARN-402
                 URL: https://issues.apache.org/jira/browse/YARN-402
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Lohit Vijayarenu
            Priority: Minor


AsyncDispatcher throws out Warn when capacity remaining is less than 1000
{noformat}
if (remCapacity < 1000) {
        LOG.warn("Very low remaining capacity in the event-queue: "
            + remCapacity);
      }
{noformat}

What would be useful is to warn much before that, may be half full instead of when queue is completely full. I see that eventQueue capacity is int value. So, if one warn's queue has only 1000 capacity left, then service definitely has serious problem.

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