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Posted to mapreduce-dev@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2014/07/29 21:04:40 UTC

[jira] [Resolved] (MAPREDUCE-1142) When cache.local.size is hit on one disk, DistributedCacheManager aggressively deletes old files on other disks too.

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Allen Wittenauer resolved MAPREDUCE-1142.
-----------------------------------------

    Resolution: Fixed

> When cache.local.size is hit on one disk, DistributedCacheManager aggressively deletes old files on other disks too.
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1142
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1142
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>    Affects Versions: 0.20.2, 0.21.0, 0.22.0
>            Reporter: Vinod Kumar Vavilapalli
>
> When the size of distributed cache files goes beyond {{mapreduce.tasktracker.cache.local.size}} on one disk, {{TrackerDistributedCacheManager}} deletes old files on other disks too. May be this is a bit aggressive.
> An important problem with this excess effort is that issue observed at MAPREDUCE-1141 will be more often.



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