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  1. Hadoop Common
  2. HADOOP-4961

ConcurrentModificationException in lease recovery of empty files.

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Details

    • Bug
    • Status: Closed
    • Blocker
    • Resolution: Fixed
    • 0.18.0
    • 0.18.3
    • None
    • None
    • Reviewed

    Description

      The problem is that internalReleaseLease() finalizes empty files, which removes these file path names from the lease. So this modifies the Collection of file names which LeaseManager.checkLeases() is iterating on.

      Attachments

        1. CMEinLeaseRecovery.patch
          4 kB
          Konstantin Shvachko
        2. CMEinLeaseRecovery-0-18.patch
          4 kB
          Konstantin Shvachko
        3. CMEinLeaseRecovery-0-19.patch
          5 kB
          Konstantin Shvachko
        4. TestLeaseExpire.java
          3 kB
          Tsz-wo Sze

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-4951 Lease monitor does not own the LeaseManager lock in changing leases.

          • Blocker - Blocks development and/or testing work, production could not run
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-3113 DFSOututStream.flush() should flush data to real block file on DataNode.

          • Major - Major loss of function.
          • Closed

          Activity

            People

              shv Konstantin Shvachko
              shv Konstantin Shvachko
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              Dates

                Created:
                Updated:
                Resolved: