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  1. Hadoop HDFS
  2. HDFS-980

Convert FSNamesystem lock to ReadWriteLock

        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.

            Issue Links

            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

              Activity

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              dhruba dhruba borthakur added a comment -

              Duplicate of HDFS-1093

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              dhruba dhruba borthakur added a comment - Duplicate of HDFS-1093

                People

                • Assignee:
                  Unassigned
                  Reporter:
                  tlipcon Todd Lipcon
                • Votes:
                  1 Vote for this issue
                  Watchers:
                  6 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved:

                    Development