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https://issues.apache.org/jira/browse/SAMZA-1724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16495479#comment-16495479
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ASF GitHub Bot commented on SAMZA-1724:
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Github user asfgit closed the pull request at:
https://github.com/apache/samza/pull/538
> Guarantee exit from ApplicationRunnerMain during deploys
> --------------------------------------------------------
>
> Key: SAMZA-1724
> URL: https://issues.apache.org/jira/browse/SAMZA-1724
> Project: Samza
> Issue Type: Bug
> Reporter: Prateek Maheshwari
> Assignee: Prateek Maheshwari
> Priority: Major
>
> When running in YARN, control script runs ApplicationRunnerMain to
> start/stop/get status for jobs. It parses the output of the process after it
> exits and looks for a particular string to check job status.
> Currently ApplicationRunnerMain's main method just returns at the end of
> execution. This can cause the process to get stuck (i.e. not exit) if there
> are still non-daemon threads running becuase some code didn't't shut down its
> executor services during shutdown.
> We should directly exit with System.exit(0) at the end of main to guarantee
> shutdown.
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