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  1. Hadoop Common
  2. HADOOP-14688

Intern strings in KeyVersion and EncryptedKeyVersion

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 2.9.0, 3.0.0-beta1
    • kms
    • None

    Description

      This is inspired by misha@cloudera.com'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. GC root of the String.png
          134 kB
          Xiao Chen
        2. HADOOP-14688.01.patch
          2 kB
          Xiao Chen
        3. heapdump analysis.png
          66 kB
          Xiao Chen
        4. jxray.report
          91 kB
          Xiao Chen

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              xiaochen Xiao Chen
              xiaochen Xiao Chen
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              Dates

                Created:
                Updated:
                Resolved: