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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-763) AMRMClientAsync should stop heartbeating after receiving shutdown from RM
Date Thu, 11 Jul 2013 07:23:50 GMT

    [ https://issues.apache.org/jira/browse/YARN-763?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13705556#comment-13705556

Bikas Saha commented on YARN-763:

We can simply create another version of the TestCallbackHandler that calls asyncClient.stop()
when asyncClient calls its getProgress() method. After the stop() has completed the method
can set a flag and notifyAll(this). The main test thread can wait() on the handler object
and check that the flag is set when it gets notified. Else it waits again. This way if the
callback thread is deadlocked then test thread will not exit and the test will fail with timeout.
To verify, the test should fail with join() and pass without it. Similar logic is used in
other tests.

Please lets not sleep(1000) as this just slows down the testing. Lets sleep(50) and set the
heartbeat interval to 10. This allows for 5 heartbeats and so the verification that actual
heartbeat count == 1 is accurate.
> AMRMClientAsync should stop heartbeating after receiving shutdown from RM
> -------------------------------------------------------------------------
>                 Key: YARN-763
>                 URL: https://issues.apache.org/jira/browse/YARN-763
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Bikas Saha
>            Assignee: Xuan Gong
>         Attachments: YARN-763.1.patch, YARN-763.2.patch, YARN-763.3.patch, YARN-763.4.patch,
YARN-763.5.patch, YARN-763.6.patch, YARN-763.7.patch

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