hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3581) Prevent memory intensive user tasks from taking down nodes
Date Tue, 02 Sep 2008 15:37:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12627715#action_12627715
] 

Hemanth Yamijala commented on HADOOP-3581:
------------------------------------------

Looks good to me. +1

> Prevent memory intensive user tasks from taking down nodes
> ----------------------------------------------------------
>
>                 Key: HADOOP-3581
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3581
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Hemanth Yamijala
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: HADOOP-3581-final.txt, HADOOP-3581.20080901.2.txt, HADOOP-3581.20080902.txt,
HADOOP-3581.6.0.txt, patch_3581_0.1.txt, patch_3581_3.3.txt, patch_3581_4.3.txt, patch_3581_4.4.txt,
patch_3581_5.0.txt, patch_3581_5.2.txt
>
>
> Sometimes user Map/Reduce applications can get extremely memory intensive, maybe due
to some inadvertent bugs in the user code, or the amount of data processed. When this happens,
the user tasks start to interfere with the proper execution of other processes on the node,
including other Hadoop daemons like the DataNode and TaskTracker. Thus, the node would become
unusable for any Hadoop tasks. There should be a way to prevent such tasks from bringing down
the node.

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


Mime
View raw message