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https://issues.apache.org/jira/browse/YARN-2052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14048216#comment-14048216
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Tsuyoshi OZAWA commented on YARN-2052:
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Thank you for the review and comments, Jian, Vinod, and Bikas!
> ContainerId creation after work preserving restart is broken
> ------------------------------------------------------------
>
> Key: YARN-2052
> URL: https://issues.apache.org/jira/browse/YARN-2052
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Tsuyoshi OZAWA
> Assignee: Tsuyoshi OZAWA
> Fix For: 2.5.0
>
> Attachments: YARN-2052.1.patch, YARN-2052.10.patch,
> YARN-2052.11.patch, YARN-2052.12.patch, YARN-2052.2.patch, YARN-2052.3.patch,
> YARN-2052.4.patch, YARN-2052.5.patch, YARN-2052.6.patch, YARN-2052.7.patch,
> YARN-2052.8.patch, YARN-2052.9.patch, YARN-2052.9.patch
>
>
> Container ids are made unique by using the app identifier and appending a
> monotonically increasing sequence number to it. Since container creation is a
> high churn activity the RM does not store the sequence number per app. So
> after restart it does not know what the new sequence number should be for new
> allocations.
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