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https://issues.apache.org/jira/browse/HBASE-7801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13627292#comment-13627292
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Enis Soztutar commented on HBASE-7801:
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+1 from me, the API looks very good now. 

Just a note, below is technically incompatible, but we do not care I guess at 
this point. Actually using 6 is cleaner.
{code}
-  optional bool writeToWAL = 6 [default = true];
+  optional Durability durability = 6 [default = USE_DEFAULT];
{code}
                
> 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: 0.94.6, 0.95.0
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 0.98.0, 0.94.7, 0.95.1
>
>         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, 7801-0.96-v6.txt, 7801-0.96-v7.txt, 
> 7801-0.96-v8.txt, 7801-0.96-v9.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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