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  1. Hadoop HDFS
  2. HDFS-980

Convert FSNamesystem lock to ReadWriteLock

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 0.22.0
    • Fix Version/s: None
    • Component/s: namenode
    • Labels:
      None

      Description

      As Dhruba noted here there would be substantial benefits to converting the FSNamesystem lock over to a ReadWriteLock. The first would be an ability to provide concurrent readers with a throughput increase, and the second would be more safety for operations like in HDFS-909.

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        relates to

        Bug - A problem which impairs or prevents the functions of the product. HDFS-909 Race condition between rollEditLog or rollFSImage ant FSEditsLog.write operations corrupts edits log

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

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            • Assignee:
              Unassigned
              Reporter:
              tlipcon Todd Lipcon

              Dates

              • Created:
                Updated:
                Resolved:

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