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https://issues.apache.org/jira/browse/FLINK-6611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16013951#comment-16013951
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Greg Hogan commented on FLINK-6611:
-----------------------------------
It is sometimes desirable to run multiple TaskManagers on the same node so we
cannot simply overwrite the PID file. This situation cannot be prevented after,
for example, a hard reboot.
> When TaskManager or JobManager restart after crash the PID file contain also
> the old PID
> ----------------------------------------------------------------------------------------
>
> Key: FLINK-6611
> URL: https://issues.apache.org/jira/browse/FLINK-6611
> Project: Flink
> Issue Type: Task
> Components: Startup Shell Scripts
> Reporter: Mauro Cortellazzi
> Assignee: Mauro Cortellazzi
> Priority: Trivial
>
> When TaskManager or JobManager restart after crash the PID file contain also
> the old PID.
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