You are viewing a plain text version of this content. The canonical link for it is here.

Posted to common-dev@hadoop.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2007/12/15 13:07:43 UTC

[jira] Commented: (HADOOP-1965) Handle map output buffers better

    [ https://issues.apache.org/jira/browse/HADOOP-1965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12552056 ] 

Hudson commented on HADOOP-1965:
--------------------------------

Integrated in Hadoop-Nightly #333 (See [http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/333/])

> Handle map output buffers better
> --------------------------------
>
>                 Key: HADOOP-1965
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1965
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.16.0
>            Reporter: Devaraj Das
>            Assignee: Amar Kamat
>             Fix For: 0.16.0
>
>         Attachments: 1965_single_proc_150mb_gziped.jpeg, 1965_single_proc_150mb_gziped.pdf, 1965_single_proc_150mb_gziped_breakup.png, HADOOP-1965-1.patch, HADOOP-1965-Benchmark.patch, HADOOP-1965-Benchmark.patch, HADOOP-1965-Benchmark.patch, HADOOP-1965-Benchmark.patch, HADOOP-1965-Benchmark.patch
>
>
> Today, the map task stops calling the map method while sort/spill is using the (single instance of) map output buffer. One improvement that can be done to improve performance of the map task is to have another buffer for writing the map outputs to, while sort/spill is using the first buffer.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.