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https://issues.apache.org/jira/browse/HBASE-7801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13624315#comment-13624315
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Lars Hofhansl commented on HBASE-7801:
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[~enis] Anoop had the same question above. I do think the column family setting 
should take precedence, unless we want rethink this completely. For example an 
option in the WriteGuarantee enum could be USE_DEFAULT, which would do whatever 
was setup for the CF.

The CF should probably also have an option to avoid writing the WAL entries... 
But that's for another jira.
                
> Allow a deferred sync option per Mutation.
> ------------------------------------------
>
>                 Key: HBASE-7801
>                 URL: https://issues.apache.org/jira/browse/HBASE-7801
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: 0.95.0, 0.94.6
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 0.95.1, 0.98.0, 0.94.7
>
>         Attachments: 7801-0.94-v1.txt, 7801-0.94-v2.txt, 7801-0.94-v3.txt, 
> 7801-0.96-full-v2.txt, 7801-0.96-full-v3.txt, 7801-0.96-full-v4.txt, 
> 7801-0.96-full-v5.txt, 7801-0.96-v1.txt
>
>
> Won't have time for parent. But a deferred sync option on a per operation 
> basis comes up quite frequently.
> In 0.96 this can be handled cleanly via protobufs and 0.94 we can have a 
> special mutation attribute.
> For batch operation we'd take the safest sync option of any of the mutations. 
> I.e. if there is at least one that wants to be flushed we'd sync the batch, 
> if there's none of those but at least one that wants deferred flush we defer 
> flush the batch, etc.

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