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Posted to common-dev@hadoop.apache.org by "Khaled Elmeleegy (JIRA)" <ji...@apache.org> on 2009/04/07 01:02:12 UTC
[jira] Updated: (HADOOP-5632) Jobtracker leaves tasktrackers
underutilized
[ https://issues.apache.org/jira/browse/HADOOP-5632?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Khaled Elmeleegy updated HADOOP-5632:
-------------------------------------
Attachment: jobtracker20.patch
The heavy weight /light weight handlers
> Jobtracker leaves tasktrackers underutilized
> --------------------------------------------
>
> Key: HADOOP-5632
> URL: https://issues.apache.org/jira/browse/HADOOP-5632
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Affects Versions: 0.18.0, 0.18.1, 0.18.2, 0.18.3, 0.19.0, 0.19.1, 0.20.0
> Environment: 2x HT 2.8GHz Intel Xeon, 3GB RAM, 4x 250GB HD linux boxes, 100 node cluster
> Reporter: Khaled Elmeleegy
> Fix For: 0.20.0
>
> Attachments: jobtracker20.patch
>
>
> For some workloads, the jobtracker doesn't keep all the slots utilized even under heavy load.
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