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Posted to mapreduce-issues@hadoop.apache.org by "Sharad Agarwal (JIRA)" <ji...@apache.org> on 2009/08/11 19:34:14 UTC

[jira] Commented: (MAPREDUCE-817) Add a cache for retired jobs with minimal job info and provide a way to access history file url

    [ https://issues.apache.org/jira/browse/MAPREDUCE-817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12741980#action_12741980 ] 

Sharad Agarwal commented on MAPREDUCE-817:
------------------------------------------

test patch passed
ant test passed except TestCapacityScheduler which has a jira MAPREDUCE-848

> Add a cache for retired jobs with minimal job info and provide a way to access history file url
> -----------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-817
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-817
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: client, jobtracker
>            Reporter: Sharad Agarwal
>            Assignee: Sharad Agarwal
>         Attachments: 817_v1.patch, 817_v2.patch, 817_v3.patch
>
>
> MAPREDUCE-814 will provide a way to keep the job history files in HDFS. There should be a way to get the url for the completed job history fie. The completed jobs can be purged from memory more aggressively from jobtracker since the clients can retrieve the information from history file. Jobtracker can just maintain the very basic info about the completed jobs.

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