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  1. Hadoop HDFS
  2. HDFS-9768

Reuse objectMapper instance in HDFS to improve the performance

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.7.1
    • 2.8.0, 3.0.0-alpha1
    • performance
    • None
    • Reviewed

    Description

      In HDFS-9724, it have reused the ObjectMapper instance to improve the performance in WebHDFS. But in other places, it still using ObjectMapper by new ObjectMapper(). We probably need a comprehensive review across the whole codebase to look for this pattern and modify them. In MAPREDUCE-6626, YARN-4668, these jiras also work for this.

      Attachments

        1. HDFS-9768.001.patch
          7 kB
          Yiqun Lin
        2. HDFS-9768.002.patch
          7 kB
          Yiqun Lin
        3. HDFS-9768.003.patch
          11 kB
          Yiqun Lin

        Issue Links

          is related to

          Sub-task - The sub-task of the issue HDFS-10560 DiskBalancer: Reuse ObjectMapper instance to improve the performance

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-10568 Reuse ObjectMapper instance in CombinedHostsFileReader and CombinedHostsFileWriter

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

          Improvement - An improvement or enhancement to an existing feature or task. YARN-4668 Reuse objectMapper instance in Yarn

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-6626 Reuse ObjectMapper instance in MapReduce

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Activity

            People

              linyiqun Yiqun Lin
              linyiqun Yiqun Lin
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              Dates

                Created:
                Updated:
                Resolved: