Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-12172

Reduce EZ lookup overhead

    XMLWordPrintableJSON

    Details

    • Type: Improvement
    • Status: Patch Available
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 2.7.0
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None
    • Target Version/s:

      Description

      A number of inefficiencies exist in EZ lookups. These are amplified by frequent operations like list status. Once one encryption zone exists, all operations take the performance penalty.

      Ex. Operations should not perform redundant lookups. EZ path reconstruction should be lazy since it's not required in the common case. Renames do not need to reallocate new IIPs to check parent dirs for EZ.

        Attachments

        1. HDFS-12172.002.patch
          17 kB
          Wei-Chiu Chuang
        2. HDFS-12172.003.patch
          20 kB
          Wei-Chiu Chuang
        3. HDFS-12172.004.patch
          21 kB
          Wei-Chiu Chuang
        4. HDFS-12172.01.patch
          21 kB
          Xiao Chen
        5. HDFS-12172.patch
          20 kB
          Daryn Sharp

          Activity

            People

            • Assignee:
              daryn Daryn Sharp
              Reporter:
              daryn Daryn Sharp
            • Votes:
              0 Vote for this issue
              Watchers:
              7 Start watching this issue

              Dates

              • Created:
                Updated: