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https://issues.apache.org/jira/browse/HBASE-10077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13912679#comment-13912679
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Anoop Sam John commented on HBASE-10077:
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So one Mutation write will involve write to 2 WALs.  Atomicity for 2 WAL writes 
(?)

> Per family WAL encryption
> -------------------------
>
>                 Key: HBASE-10077
>                 URL: https://issues.apache.org/jira/browse/HBASE-10077
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.98.0
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>
> HBASE-7544 introduces WAL encryption to prevent the leakage of protected data 
> to disk by way of WAL files. However it is currently enabled globally for the 
> regionserver. Encryption of WAL entries should depend on whether or not an 
> entry in the WAL is to be stored within an encrypted column family.



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