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  1. Hadoop Common
  2. HADOOP-14688

Intern strings in KeyVersion and EncryptedKeyVersion

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.9.0, 3.0.0-beta1
    • Component/s: kms
    • Labels:
      None
    • Target Version/s:

      Description

      This is inspired by Misha Dmitriev's work on HDFS-11383.

      The key names and key version names are usually the same for a bunch of KeyVersion and EncryptedKeyVersion. We should not create duplicate objects for them.

      This is more important to HDFS-10899, where we try to re-encrypt all files' EDEKs in a given EZ. Those EDEKs all has the same key name, and mostly using no more than a couple of key version names.

        Attachments

        1. HADOOP-14688.01.patch
          2 kB
          Xiao Chen
        2. heapdump analysis.png
          66 kB
          Xiao Chen
        3. GC root of the String.png
          134 kB
          Xiao Chen
        4. jxray.report
          91 kB
          Xiao Chen

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              • Assignee:
                xiaochen Xiao Chen
                Reporter:
                xiaochen Xiao Chen
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                • Created:
                  Updated:
                  Resolved: