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https://issues.apache.org/jira/browse/YARN-2562?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14155868#comment-14155868
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Tsuyoshi OZAWA commented on YARN-2562:
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My concern at first was that AppMaster won't work with new RM because of the
change of containerId's format. However, we can change it since the protocol
between AM and RM is changed and old AppMaster won't work in any case. Then
it's better to use the format Vinod mentioned at first. Updating a patch soon.
> ContainerId@toString() is unreadable for epoch >0 after YARN-2182
> -----------------------------------------------------------------
>
> Key: YARN-2562
> URL: https://issues.apache.org/jira/browse/YARN-2562
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Tsuyoshi OZAWA
> Priority: Critical
> Attachments: YARN-2562.1.patch, YARN-2562.2.patch
>
>
> ContainerID string format is unreadable for RMs that restarted at least once
> (epoch > 0) after YARN-2182. For e.g,
> container_1410901177871_0001_01_000005_17.
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