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Posted to mapreduce-issues@hadoop.apache.org by "Peter Bacsko (JIRA)" <ji...@apache.org> on 2017/09/08 13:06:00 UTC

[jira] [Updated] (MAPREDUCE-6954) Disable erasure coding for files that are uploaded to the MR staging area

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6954?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Peter Bacsko updated MAPREDUCE-6954:
------------------------------------
    Attachment: MAPREDUCE-6954-001.patch

> Disable erasure coding for files that are uploaded to the MR staging area
> -------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6954
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6954
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: client
>    Affects Versions: 3.0.0-alpha4
>            Reporter: Peter Bacsko
>            Assignee: Peter Bacsko
>         Attachments: MAPREDUCE-6954-001.patch
>
>
> Depending on the encoder/decoder used and the type or MR workload, EC might negatively affect the performance of an MR job if too many files are localized.
> In such a scenario, users might want to disable EC in the staging area to speed up the execution.



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