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https://issues.apache.org/jira/browse/TEZ-2186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rajesh Balamohan resolved TEZ-2186.
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Resolution: Fixed
Thanks [~hitesh]. Committed to branch-0.5 and branch-0.6 as well.
> OOM with a simple scatter gather job with re-use
> ------------------------------------------------
>
> Key: TEZ-2186
> URL: https://issues.apache.org/jira/browse/TEZ-2186
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Siddharth Seth
> Assignee: Rajesh Balamohan
> Fix For: 0.7.0
>
> Attachments: TEZ-2186.1.patch, TEZ-2186.2.patch, noopexample.txt
>
>
> With a no-op scatter gather job, 20K x 2K, on a 20 node cluster with 20 2GB
> containers per node - reducers end up failing with OOM errors. Haven't been
> able to generate a heap dump yet. Will add details as they're found.
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