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https://issues.apache.org/jira/browse/HBASE-19384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16272158#comment-16272158
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Rajeshbabu Chintaguntla commented on HBASE-19384:
-------------------------------------------------

Ping  [~anoop.hbase] [~elserj] [~sergey.soldatov] [~an...@apache.org]. 

> Results returned by preAppend hook in a coprocessor are replaced with null 
> from other coprocessor even on bypass
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-19384
>                 URL: https://issues.apache.org/jira/browse/HBASE-19384
>             Project: HBase
>          Issue Type: Bug
>          Components: Coprocessors
>            Reporter: Rajeshbabu Chintaguntla
>            Assignee: Rajeshbabu Chintaguntla
>             Fix For: 3.0.0, 2.0.0-beta-1
>
>
> Phoenix adding multiple coprocessors for a table and one of them has 
> preAppend and preIncrement implementation and bypass the operations by 
> returning the results. But the other coprocessors which doesn't have any 
> implementation returning null and the results returned by previous 
> coprocessor are override by null and always going with default implementation 
> of append and increment operations. But it's not the case with old versions 
> and works fine on bypass.



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