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https://issues.apache.org/jira/browse/FLINK-4212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Greg Hogan updated FLINK-4212:
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Summary: Lock PID file when starting daemons (was: Lock on pid file when
starting daemons)
> Lock PID file when starting daemons
> -----------------------------------
>
> Key: FLINK-4212
> URL: https://issues.apache.org/jira/browse/FLINK-4212
> Project: Flink
> Issue Type: Improvement
> Components: Startup Shell Scripts
> Affects Versions: 1.1.0
> Reporter: Greg Hogan
> Assignee: Greg Hogan
>
> As noted on the mailing list (0), when multiple TaskManagers are started in
> parallel (using pdsh) there is a race condition on updating the pid: 1) the
> pid file is first read to parse the process' index, 2) the process is
> started, and 3) on success the daemon pid is appended to the pid file.
> We could use a tool such as {{flock}} to lock on the pid file while starting
> the Flink daemon.
> 0:
> http://mail-archives.apache.org/mod_mbox/flink-user/201607.mbox/%3CCA%2BssbKXw954Bz_sBRwP6db0FntWyGWzTyP7wJZ5nhOeQnof3kg%40mail.gmail.com%3E
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