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  1. Hadoop Common
  2. HADOOP-6670

UserGroupInformation doesn't support use in hash tables

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.22.0
    • security
    • None

    Description

      The UserGroupInformation objects are mutable, but they are used as keys in hash tables. This leads to serious problems in the FileSystem cache and RPC connection cache. We need to change the hashCode to be the identity hash code of the Subject and change equals to use == between the Subjects.

      Attachments

        1. 6670-gridmix-test.bugfix.patch
          2 kB
          Devaraj Das
        2. c6670-02.patch
          6 kB
          Kan Zhang
        3. c6670-03.patch
          6 kB
          Kan Zhang
        4. fs-close.patch
          12 kB
          Owen O'Malley
        5. fs-close.patch
          9 kB
          Owen O'Malley
        6. fs-close.patch
          13 kB
          Owen O'Malley

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-12529 UserGroupInformation equals method depend on the subject object address

          • Major - Major loss of function.
          • Open

          Activity

            People

              omalley Owen O'Malley
              omalley Owen O'Malley
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              Dates

                Created:
                Updated:
                Resolved: