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  1. Hive
  2. HIVE-16183

Fix potential thread safety issues with static variables

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 2.3.0
    • HiveServer2
    • None

    Description

      Many concurrency issues (HIVE-12768, HIVE-16175, HIVE-16060) have been found with respect to class static variable usages. With fact that HS2 supports concurrent compilation and task execution as well as some backend engines (such as Spark) running multiple tasks in a single JVM, traditional assumption (or mindset) of single threaded execution needs to be abandoned.

      This purpose of this JIRA is to do a global scan of static variables in Hive code base, and correct potential thread-safety issues. However, it's not meant to be exhaustive.

      Attachments

        1. HIVE-16183.patch
          77 kB
          Xuefu Zhang
        2. HIVE-16183.1.patch
          80 kB
          Xuefu Zhang
        3. HIVE-16183.2.patch
          76 kB
          Xuefu Zhang
        4. HIVE-16183.3.patch
          78 kB
          Xuefu Zhang
        5. HIVE-16183.4.patch
          78 kB
          Xuefu Zhang
        6. HIVE-16183.4.patch
          78 kB
          Xuefu Zhang
        7. HIVE-16183.4.patch
          79 kB
          Xuefu Zhang

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-16196 UDFJson having thread-safety issues

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link https://reviews.apache.org/r/57586/

          Activity

            People

              xuefuz Xuefu Zhang
              xuefuz Xuefu Zhang
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              Dates

                Created:
                Updated:
                Resolved: