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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 updated TEZ-2186:
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Attachment: TEZ-2186.2.patch
Yes [~sseth]. It would be good to move to threadpool model as opposed to
managing them explicitly. The earlier patch had a minor bug due to which 42
errors happened, even though it was much less compared to original run. I have
fixed the issue in the latest patch and ran it with 50K x 50K. It ran
successfully without issues.
> 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
> 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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