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https://issues.apache.org/jira/browse/HBASE-4720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13286033#comment-13286033
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Hudson commented on HBASE-4720:
-------------------------------

Integrated in HBase-TRUNK #2956 (See 
[https://builds.apache.org/job/HBase-TRUNK/2956/])
    HBASE-4720 Implement atomic update operations (checkAndPut, checkAndDelete) 
for REST client/server (Revision 1344398)

     Result = FAILURE
stack : 
Files : 
* 
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/rest/RowResource.java
* 
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/rest/TableResource.java
* 
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/rest/client/RemoteHTable.java
* 
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/rest/TestRowResource.java

                
> Implement atomic update operations (checkAndPut, checkAndDelete) for REST 
> client/server 
> ----------------------------------------------------------------------------------------
>
>                 Key: HBASE-4720
>                 URL: https://issues.apache.org/jira/browse/HBASE-4720
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Daniel Lord
>            Assignee: Mubarak Seyed
>             Fix For: 0.92.1, 0.96.0, 0.94.1
>
>         Attachments: 4720_trunk.patch, 4720_trunk_v2.patch, 
> 4720_trunk_v3.1.patch, 4720_trunk_v3.patch, 4720_trunk_v3.patch, 
> HBASE-4720.trunk.v1.patch, HBASE-4720.trunk.v2.patch, 
> HBASE-4720.trunk.v3.patch, HBASE-4720.trunk.v4.patch, 
> HBASE-4720.trunk.v5.patch, HBASE-4720.trunk.v6.patch, 
> HBASE-4720.trunk.v7.patch, HBASE-4720.v1.patch, HBASE-4720.v3.patch
>
>
> I have several large application/HBase clusters where an application node 
> will occasionally need to talk to HBase from a different cluster.  In order 
> to help ensure some of my consistency guarantees I have a sentinel table that 
> is updated atomically as users interact with the system.  This works quite 
> well for the "regular" hbase client but the REST client does not implement 
> the checkAndPut and checkAndDelete operations.  This exposes the application 
> to some race conditions that have to be worked around.  It would be ideal if 
> the same checkAndPut/checkAndDelete operations could be supported by the REST 
> client.

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