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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4551) Change WebHDFS buffersize behavior to improve default performance
Date Thu, 07 Mar 2013 03:08:14 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13595491#comment-13595491
] 

Tsz Wo (Nicholas), SZE commented on HDFS-4551:
----------------------------------------------

Then, how is the performance of 4KB?  Is it similar to 64KB?  If not, we probably should increase
the value.  Could you check it?  Thank you in advance!
                
> Change WebHDFS buffersize behavior to improve default performance
> -----------------------------------------------------------------
>
>                 Key: HDFS-4551
>                 URL: https://issues.apache.org/jira/browse/HDFS-4551
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: webhdfs
>    Affects Versions: 1.1.2
>            Reporter: Mark Wagner
>            Assignee: Mark Wagner
>         Attachments: HDFS-4551.1.patch
>
>
> Currently on 1.X branch, the buffer size used to copy bytes to network defaults to io.file.buffer.size.
This causes performance problems if that buffersize is large.

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