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https://issues.apache.org/jira/browse/HBASE-7801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13631476#comment-13631476
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Lars Hofhansl commented on HBASE-7801:
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We have a silent agreement that attributes starting with _ are for internal use
only (same for the cluster id), I agree that that should have been documented
somewhere.
As for catching the exception... Not sure what we should do in this case, other
than throwing an Exception. Or you mean you want to catch and ignore it and
then check the value of writeToWAL? Could do that too, but it seems a bit
overkill. I'd rather know in the client code if there's something wrong the
enum.
> 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,
> 7801-0.94-v4.txt, 7801-0.94-v5.txt, 7801-0.94-v6.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-v10.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, hbase-7801-addendum.patch
>
>
> 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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