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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12303) Change default EC cell size to 1MB for better performance
Date Thu, 17 Aug 2017 17:00:06 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16130821#comment-16130821
] 

Andrew Wang commented on HDFS-12303:
------------------------------------

Hi Wei, thanks for working on this! A single review comment:

* I notice there's still an old reference to XOR-64k in TestDistCpUtils

Toggling the JIRA status doesn't retrigger precommit, you'd need to re-upload the same patch.
I ran a few of the failed tests and saw that they succeeded. Hoping it's just a flake.

> Change default EC cell size to 1MB for better performance
> ---------------------------------------------------------
>
>                 Key: HDFS-12303
>                 URL: https://issues.apache.org/jira/browse/HDFS-12303
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Wei Zhou
>            Assignee: Wei Zhou
>            Priority: Blocker
>              Labels: hdfs-ec-3.0-must-do
>         Attachments: HDFS-12303.00.patch
>
>
> As discussed in HDFS-11814, 1MB cell size shows better performance than others during
the tests.



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