hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Omkar Aradhya K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14407) DistCp - Introduce a configurable copy buffer size
Date Fri, 19 May 2017 08:05:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16017038#comment-16017038

Omkar Aradhya K S commented on HADOOP-14407:

I committed to trunk. When trying to backport to branch-2, saw quite some conflicts. Would
you please help doing branch-2 version and other ones you prefer?

[~yzhangal] Thanks. OK, I will work on the branch-2 patch today.

> DistCp - Introduce a configurable copy buffer size
> --------------------------------------------------
>                 Key: HADOOP-14407
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14407
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: tools/distcp
>    Affects Versions: 2.9.0
>            Reporter: Omkar Aradhya K S
>            Assignee: Omkar Aradhya K S
>             Fix For: 2.9.0, 3.0.0-alpha3
>         Attachments: HADOOP-14407.001.patch, HADOOP-14407.002.patch, HADOOP-14407.002.patch,
HADOOP-14407.003.patch, HADOOP-14407.004.patch, HADOOP-14407.004.patch, TotalTime-vs-CopyBufferSize.jpg
> Currently, the RetriableFileCopyCommand has a fixed copy buffer size of just 8KB. We
have noticed in our performance tests that with bigger buffer sizes we saw upto ~3x performance
boost. Hence, making the copy buffer size a configurable setting via the new parameter <copybuffersize>.

This message was sent by Atlassian JIRA

To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-issues-help@hadoop.apache.org

View raw message