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https://issues.apache.org/jira/browse/STORM-532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14178537#comment-14178537
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ASF GitHub Bot commented on STORM-532:
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Github user xiaokang commented on the pull request:
https://github.com/apache/storm/pull/296#issuecomment-59948431
Supervisor and workers needed to be restarted if we change the
WorkerHeartbeat data structure by adding a process-id field. It may be more
easy to read worker and its child process id from the worker pids dir.
> Supervisor should restart worker immediately, if the worker process does not
> exist any more
> --------------------------------------------------------------------------------------------
>
> Key: STORM-532
> URL: https://issues.apache.org/jira/browse/STORM-532
> Project: Apache Storm
> Issue Type: Improvement
> Affects Versions: 0.10.0
> Reporter: caofangkun
> Priority: Minor
>
> For now
> if the worker process does not exist any more
> Supervisor will have to wait a few seconds for worker heartbeart timeout and
> restart worker .
> If supervisor knows the worker processid and check if the process exists in
> the sync-processes thread ,may need less time to restart worker.
> 1: record worker process id in the worker local heartbeart
> 2: in supervisor sync-processes ,get process id from worker local heartbeat
> and check if the process exits
> 3: if not restart it immediately
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