Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
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      Description

      I believe there is a race condition in org.apache.hadoop.chukwa.util.PidFile. The problem is that the creation and deletion of the file is not protected by any lock. Client A can delete the file just before Client B tries to acquire a lock. If at that moment Client C tries to create the file, it will succeed. Client B and Client C will both succeed in acquiring a lock because there are two different files (one is hidden because it was deleted after being opened). I have tested similar code on OS X and this is what happened.

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            • Assignee:
              eyang Eric Yang
              Reporter:
              cbfiddle Alan Snyder
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                Updated:
                Resolved: