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https://issues.apache.org/jira/browse/YARN-875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13710357#comment-13710357
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Bikas Saha commented on YARN-875:
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wrt NMClientAsync, we should probably check if silently ignoring exceptions can
lead to incorrectness. While its good to be inconsistent I would currently
trade of consistency with correctness as of now. Ignoring exceptions can lead
to correctness issues in scheduling.
> Application can hang if AMRMClientAsync callback thread has exception
> ---------------------------------------------------------------------
>
> Key: YARN-875
> URL: https://issues.apache.org/jira/browse/YARN-875
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.1.0-beta
> Reporter: Bikas Saha
> Assignee: Xuan Gong
> Attachments: YARN-875.1.patch, YARN-875.1.patch, YARN-875.2.patch
>
>
> Currently that thread will die and then never callback. App can hang.
> Possible solution could be to catch Throwable in the callback and then call
> client.onError().
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