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From "Tsuyoshi OZAWA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2052) ContainerId creation after work preserving restart is broken
Date Thu, 12 Jun 2014 01:48:02 GMT

    [ https://issues.apache.org/jira/browse/YARN-2052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14028717#comment-14028717
] 

Tsuyoshi OZAWA commented on YARN-2052:
--------------------------------------

s/epoch number is/epoch number should be/

> 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
>
> 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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