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  1. Hadoop Common
  2. HADOOP-803

Reducing memory consumption on Namenode : Part 1

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.12.0
    • Component/s: None
    • Labels:
      None

      Description

      There appears to be some places in Namenode that allow reducing memory consumption without intrusive code or feature changes. This bug is an initial attempt making those changes. Please include your thoughts as well.

      One change I am planning to make :

      Currently one copy of each block exists for each of the replicas and one copy for blockMap. I think they are all supposed to be same.

        Attachments

        1. block-refs-2.patch
          6 kB
          Raghu Angadi
        2. block-refs-3.patch
          8 kB
          Raghu Angadi
        3. block-refs-5.patch
          8 kB
          Raghu Angadi
        4. HADOOP-803.patch
          13 kB
          Raghu Angadi
        5. HADOOP-803-2.patch
          13 kB
          Raghu Angadi
        6. HADOOP-803_3.patch
          18 kB
          Raghu Angadi
        7. NameNodeMemoryHogs.txt
          1 kB
          Raghu Angadi
        8. HADOOP-803_4.patch
          18 kB
          Doug Cutting
        9. HADOOP-803_5.patch
          18 kB
          Raghu Angadi

          Activity

            People

            • Assignee:
              rangadi Raghu Angadi
              Reporter:
              rangadi Raghu Angadi
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              Dates

              • Created:
                Updated:
                Resolved: