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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14688) Intern strings in KeyVersion and EncryptedKeyVersion
Date Tue, 24 Apr 2018 20:56:07 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16450978#comment-16450978
] 

Hudson commented on HADOOP-14688:
---------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14057 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/14057/])
HADOOP-14688. Intern strings in KeyVersion and EncryptedKeyVersion. (xyao: rev 89ec91cb004ff36b3b7f327167cb3b45b8baadd2)
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/KeyProviderCryptoExtension.java
* (edit) hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/KeyProvider.java


> 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
>            Priority: Major
>             Fix For: 2.9.0, 3.0.0-beta1
>
>         Attachments: GC root of the String.png, HADOOP-14688.01.patch, heapdump analysis.png,
jxray.report
>
>
> 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.



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