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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4854) Capacity Scheduler should read the reclaim-capacity-interval config value from its own config file
Date Tue, 23 Dec 2008 08:17:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4854?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Hemanth Yamijala updated HADOOP-4854:

       Resolution: Fixed
    Fix Version/s: 0.20.0
     Hadoop Flags: [Reviewed]
           Status: Resolved  (was: Patch Available)

I just committed this to trunk and the Hadoop 0.20 branch. Thanks, Sreekanth !

I have only committed the documentation source (the xml files), and not the generated Forrest
documentation following the new practice for committing documentation

> Capacity Scheduler should read the reclaim-capacity-interval config value from its own
config file
> --------------------------------------------------------------------------------------------------
>                 Key: HADOOP-4854
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4854
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/capacity-sched
>            Reporter: Vivek Ratan
>            Assignee: Sreekanth Ramakrishnan
>            Priority: Minor
>             Fix For: 0.20.0
>         Attachments: HADOOP-4854-1.patch, HADOOP-4854-2.patch, HADOOP-4854-3.patch, HADOOP-4854-4.patch,
> The Capacity Scheduler needs to know the time interval for checking whether capacity
needs to be reclaimed. This is represented by the static variable RECLAIM_CAPACITY_INTERVAL.
This value is currently read as follows: 
> {code}
>     RECLAIM_CAPACITY_INTERVAL = conf.getLong("mapred.capacity-scheduler.reclaimCapacity.interval",
> {code}
> This is incorrect for the following reasons: 
> * ""mapred.capacity-scheduler.reclaimCapacity.interval" is not present in any of the
config files: hadoop-site.xml or capacity-scheduler.xml.
> * "mapred.capacity-scheduler.reclaimCapacity.interval" should be specified in the scheduler's
config file, capacity-scheduler.xml. It should be read through org.apache.hadoop.mapred.CapacitySchedulerConf.

> * The Forrest documentation for the Capacity Scheduler should describe this setting.
We should probably create a new sub-section under 'Configuration', titled 'Configuring properties
for the Scheduler'. 

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