[jira] [Created] (TWILL-145) Potential race condition when restart all is called for a Twill runnable

["Henry Saputra (JIRA)" <ji...@apache.org>]

Henry Saputra created TWILL-145:
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             Summary: Potential race condition when restart all is called for a Twill runnable
                 Key: TWILL-145
                 URL: https://issues.apache.org/jira/browse/TWILL-145
             Project: Apache Twill
          Issue Type: Bug
          Components: yarn
    Affects Versions: 0.6.0-incubating
            Reporter: Henry Saputra


Found this issue from careful eyes of [~chtyim]

When sending restart instance to all for a particular TwillRunnable, it could have race condition where the heartbeat thread run right after all containers have been released which make the check:

     // Looks for containers requests.
      if (provisioning.isEmpty() && runnableContainerRequests.isEmpty() && runningContainers.isEmpty()) {
        LOG.info("All containers completed. Shutting down application master.");
        break;
      }

This could happen when all running containers are empty and new runnableContainerRequests has not been added.



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