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

["Vinod K V (JIRA)" <ji...@apache.org>]

When cache.local.size is hit on one disk, DistributedCacheManager aggressively deletes old files on other disks too.
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                 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 K V


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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