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https://issues.apache.org/jira/browse/STORM-255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13934690#comment-13934690
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vinceyang commented on STORM-255:
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[~seanzhong] issue STORM-23 seems fix port Conflict problem. but this issue
also caused resource leak problem. the worker should be killed,but not kill
sucess ,it will never be killed.
> supervisor shutdown worker bug Cause woker port Conflict
> --------------------------------------------------------
>
> Key: STORM-255
> URL: https://issues.apache.org/jira/browse/STORM-255
> Project: Apache Storm (Incubating)
> Issue Type: Bug
> Reporter: vinceyang
> Priority: Minor
>
> in our storm 300+ node storm cluster ,Encounter the problems：
> 1. cluster kill topology
> 2. supervisor try to kill worker，call ensure-process-killed! function ，the
> function call kill -9 to kill worker，but sometime the process not kill sucess
> and not throw exception. this function not do a ps to make sure worker was
> killed.
> 3. supervisor remove worker-pid-path ,
> 4. supervisor never know worker's pid and never killed it, the port Occupated
> by this worker never release
> 5.if other topology‘s worker assign worker to this port ，port Conflict
> occurred
>
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