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https://issues.apache.org/jira/browse/YARN-1700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13896145#comment-13896145
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Zhijie Shen commented on YARN-1700:
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bq. AHS sometimes threw NPE out of AppAttemptBlock.render because logUrl in
container report was null.
YARN-1685 is tackling the problem of NPE.
bq. I realized that this is because AHS may record containers that never launch.
See my previous comment:
https://issues.apache.org/jira/browse/YARN-1413?focusedCommentId=13866844&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13866844
> AHS records non-launched containers
> -----------------------------------
>
> Key: YARN-1700
> URL: https://issues.apache.org/jira/browse/YARN-1700
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.4.0
> Reporter: Gera Shegalov
> Assignee: Gera Shegalov
> Attachments: YARN-1700.v01.patch, YARN-1700.v02.patch
>
>
> When testing AHS with a MR sleep job, AHS sometimes threw NPE out of
> AppAttemptBlock.render because logUrl in container report was null. I
> realized that this is because AHS may record containers that never launch.
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