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  1. Hadoop HDFS
  2. HDFS-12947

Limit the number of Snapshots allowed to be created for a Snapshottable Directory

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 3.1.0
    • snapshots
    • None
    • Reviewed

    Description

      Currently, A snapshottable directory is able to accommodate 65,536 snapshots. In case a directory has large no of snapshots , deletion of any of the earlier snapshots take a lot of time which might lead to namenode crash (HDFS-11225).

      This jira is introduced to limit the no of the snapshots under a snapshottable directory to a reasonable value(say 10) which can be overriden.

      Attachments

        1. HDFS-12947.001.patch
          8 kB
          Shashikant Banerjee
        2. HDFS-12947.002.patch
          9 kB
          Shashikant Banerjee
        3. HDFS-12947.003.patch
          13 kB
          Shashikant Banerjee
        4. HDFS-12947.004.patch
          13 kB
          Shashikant Banerjee

        Issue Links

          is a child of

          Bug - A problem which impairs or prevents the functions of the product. HDFS-11225 NameNode crashed because deleteSnapshot held FSNamesystem lock too long

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Activity

            People

              shashikant Shashikant Banerjee
              shashikant Shashikant Banerjee
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              Dates

                Created:
                Updated:
                Resolved: