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Guanghao Zhang commented on HBASE-9899:
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Thanks [~stack]. But the master branch need the addendum patch too...... And it has been included
in patch for branch-1.
> for idempotent operation dups, return the result instead of throwing conflict exception
> ---------------------------------------------------------------------------------------
>
> Key: HBASE-9899
> URL: https://issues.apache.org/jira/browse/HBASE-9899
> Project: HBase
> Issue Type: Improvement
> Reporter: Sergey Shelukhin
> Assignee: Guanghao Zhang
> Fix For: 2.0.0, 1.3.0, 1.4.0
>
> Attachments: HBASE-9899-addendum.patch, HBASE-9899-branch-1.patch, HBASE-9899-branch-1.patch,
HBASE-9899-branch-1.patch, HBASE-9899-v1.patch, HBASE-9899-v2.patch, HBASE-9899-v3.patch,
HBASE-9899-v3.patch, HBASE-9899-v4.patch, HBASE-9899-v4.patch
>
>
> After HBASE-3787, we could store mvcc in operation context, and use it to convert the
modification request into read on dups instead of throwing OperationConflictException.
> MVCC tracking will have to be aware of such MVCC numbers present. Given that scanners
are usually relatively short-lived, that would prevent low watermark from advancing for quite
a bit more time
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