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 "Amar Kamat (JIRA)" <ji...@apache.org> on 2007/10/30 10:33:50 UTC

[jira] Updated: (HADOOP-1984) some reducer stuck at copy phase and progress extremely slowly

     [ https://issues.apache.org/jira/browse/HADOOP-1984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amar Kamat updated HADOOP-1984:
-------------------------------

    Attachment: HADOOP-1984.patch

> some reducer stuck at copy phase and progress extremely slowly
> --------------------------------------------------------------
>
>                 Key: HADOOP-1984
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1984
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.14.0
>            Reporter: Runping Qi
>            Priority: Critical
>         Attachments: HADOOP-1984.patch
>
>
> In many cases, some reducers got stuck at copy phase, progressing extremely slowly.
> The entire cluster seems doing nothing. This causes a very bad long tails of otherwise well tuned map/red jobs.

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