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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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Siddharth Seth updated TEZ-2186:
--------------------------------
    Attachment: noopexample.txt

Example to reproduce this.
Run with 
hadoop jar $TEZ_EXAMPLE_JAR noop   20000 2000  ScatterGather  1

> 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: 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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