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https://issues.apache.org/jira/browse/YARN-2182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14107893#comment-14107893
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Tsuyoshi OZAWA commented on YARN-2182:
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s/Changed to prefix epoch to ContainerId#toString()/Updated
ContainerId#toString() to suffix epoch/
> Update ContainerId#toString() to avoid conflicts before and after RM restart
> ----------------------------------------------------------------------------
>
> Key: YARN-2182
> URL: https://issues.apache.org/jira/browse/YARN-2182
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Tsuyoshi OZAWA
> Assignee: Tsuyoshi OZAWA
> Attachments: YARN-2182.1.patch
>
>
> ContainerId#toString() doesn't include any information about current cluster
> id. This leads conflict between container ids. We can avoid the conflicts
> without breaking backward compatibility by using epoch introduced on
> YARN-2052.
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