[jira] [Commented] (OOZIE-2110) cancel delegation token of launcher jobs that stay till child jobs finish

["Abdoul Karim (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OOZIE-2110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14719978#comment-14719978 ] 

Abdoul Karim commented on OOZIE-2110:
-------------------------------------

[~rohini] Hi, What should be the value for mapreduce.job.complete.cancel.delegation.tokens? I am having this issue, but with your two command i don't know what to set. Thanks for the clarification. Abdoul

> cancel delegation token of launcher jobs that stay till child jobs finish
> -------------------------------------------------------------------------
>
>                 Key: OOZIE-2110
>                 URL: https://issues.apache.org/jira/browse/OOZIE-2110
>             Project: Oozie
>          Issue Type: Bug
>    Affects Versions: trunk
>            Reporter: Ryota Egashira
>            Assignee: Ryota Egashira
>             Fix For: 4.2.0
>
>         Attachments: OOZIE-2110-v2.patch, OOZIE-2110.patch
>
>
> set mapreduce.job.complete.cancel.delegation.tokens=true for launcher job that wait for child jobs to finish (most of actions, pig,hive,java, distcp, etc). this is currently set to false.
> keep mapreduce.job.complete.cancel.delegation.tokens=false for launcher job that exits right after a child job launched (mapred action), such that it does not delete delegation token while child job still running.
> this change reduce the load on Namenode in terms of the number of tokens it has to maintain. 



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)