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https://issues.apache.org/jira/browse/HDFS-6987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14132267#comment-14132267
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Zhe Zhang commented on HDFS-6987:
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The above question was answered offline -- only {{CipherSuite}} is shared in an
EZ.
> Move CipherSuite xattr information up to the encryption zone root
> -----------------------------------------------------------------
>
> Key: HDFS-6987
> URL: https://issues.apache.org/jira/browse/HDFS-6987
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: encryption
> Affects Versions: 2.6.0
> Reporter: Andrew Wang
> Assignee: Zhe Zhang
>
> All files within a single EZ need to be encrypted with the same CipherSuite.
> Because of this, I think we can store the CipherSuite once in the EZ rather
> than on each file.
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