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  1. Hadoop HDFS
  2. HDFS-7434

DatanodeID hashCode should not be mutable

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.0.0-alpha, 3.0.0-alpha1
    • 2.7.0
    • namenode
    • None
    • Reviewed

    Description

      Mutable hash codes may lead to orphaned instances in a collection. Instances must always be removed prior to modification of hash code values, and re-inserted. Although current code appears to do this, the mutable hash code is a landmine.

      Attachments

        1. HDFS-7434.patch
          10 kB
          Daryn Sharp

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-7433 Optimize performance of DatanodeManager's node map

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

          Activity

            People

              daryn Daryn Sharp
              daryn Daryn Sharp
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              Dates

                Created:
                Updated:
                Resolved: