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Posted to common-issues@hadoop.apache.org by "Xiao Chen (JIRA)" <ji...@apache.org> on 2017/08/16 17:48:00 UTC
[jira] [Updated] (HADOOP-14688) Intern strings in KeyVersion and
EncryptedKeyVersion
[ https://issues.apache.org/jira/browse/HADOOP-14688?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiao Chen updated HADOOP-14688:
-------------------------------
Attachment: jxray.report
> 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
> 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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