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Posted to mapreduce-dev@hadoop.apache.org by "Zheng Shao (JIRA)" <ji...@apache.org> on 2009/12/16 08:38:18 UTC

[jira] Created: (MAPREDUCE-1302) TrackerDistributedCacheManager can delete file asynchronously

TrackerDistributedCacheManager can delete file asynchronously
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                 Key: MAPREDUCE-1302
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1302
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
            Reporter: Zheng Shao
            Assignee: Zheng Shao


With the help of AsyncDiskService from MAPREDUCE-1213, we should be able to delete files from distributed cache asynchronously.

That will help make task initialization faster, because task initialization calls the code that localizes files into the cache and may delete some other files.
The deletion can slow down the task initialization speed.


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