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Posted to mapreduce-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2013/06/05 23:03:21 UTC

[jira] [Created] (MAPREDUCE-5305) AggregatedLogDeletionService may delete recent stuff if its clock is out of sync

Steve Loughran created MAPREDUCE-5305:
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             Summary: AggregatedLogDeletionService may delete recent stuff if its clock is out of sync
                 Key: MAPREDUCE-5305
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5305
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: jobhistoryserver
    Affects Versions: 3.0.0, 2.1.0-beta
            Reporter: Steve Loughran
            Priority: Minor


The {{AggregatedLogDeletionService}} compares file time with current time before deciding whether to delete things. If the clock on the system is sufficiently wrong, it may overreact.

If this is felt to be an issue, the fix would be for it to create a file on the DFS, stat it, and work out out the offset.

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