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https://issues.apache.org/jira/browse/HBASE-10077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13913322#comment-13913322
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Andrew Purtell commented on HBASE-10077:
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bq. So one Mutation write will involve write to 2 WALs.
Maybe. If the edit spans families and the families are partitioned to different
WALs.
bq. Atomicity for 2 WAL writes (?)
Most likely not.
The thing about security is, as soon as you need it, you must accept something
else that sucks :-), be it a performance drop, or this.
> 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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