[jira] [Issue Comment Deleted] (HBASE-8458) Support for batch version of checkAndPut() and checkAndDelete()

["Toshihiro Suzuki (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-8458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Toshihiro Suzuki updated HBASE-8458:
------------------------------------
    Comment: was deleted

(was: I fixed the conflicts in the PR.

[~zhangduo] [~stack] Could you please review the PR when you get a chance?
https://github.com/apache/hbase/pull/1320)

> Support for batch version of checkAndPut() and checkAndDelete()
> ---------------------------------------------------------------
>
>                 Key: HBASE-8458
>                 URL: https://issues.apache.org/jira/browse/HBASE-8458
>             Project: HBase
>          Issue Type: New Feature
>          Components: Client, regionserver
>            Reporter: Hari Mankude
>            Assignee: Toshihiro Suzuki
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.4.0
>
>
> The use case is that the user has multiple threads loading hundreds of keys into a hbase table. Occasionally there are collisions in the keys being uploaded by different threads. So for correctness, it is required to do checkAndPut() instead of a put(). However, doing a checkAndPut() rpc for every key update is non optimal. It would be good to have a batch version of checkAndPut() similar to batch put(). The client can partition the keys on region boundaries.
> The jira is NOT looking for any type of cross-row locking or multi-row atomicity with checkAndPut()
> Batch version of checkAndDelete() is a similar requirement.



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