Xiao Chen created HADOOP-14688:
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Summary: Intern strings in KeyVersion and EncryptedKeyVersion
Key: HADOOP-14688
URL: https://issues.apache.org/jira/browse/HADOOP-14688
Project: Hadoop Common
Issue Type: Improvement
Components: kms
Reporter: Xiao Chen
Assignee: Xiao Chen
This is inspired by [~mi...@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.
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