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https://issues.apache.org/jira/browse/HBASE-16283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15393573#comment-15393573
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Allan Yang commented on HBASE-16283:
------------------------------------
Those are two cases just to show the issue. I'm not intend to include these two
test into the project. Do you think we need to add batch append/increment test
case?
> Batch Append/Increment will always fail if set ReturnResults to false
> ---------------------------------------------------------------------
>
> Key: HBASE-16283
> URL: https://issues.apache.org/jira/browse/HBASE-16283
> Project: HBase
> Issue Type: Bug
> Components: API
> Affects Versions: 2.0.0, 1.1.5, 1.2.2
> Reporter: Allan Yang
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: FailedCase.java, HBASE-16283.patch, HBASE-16283v2.patch
>
>
> If set Append/Increment's ReturnResult attribute to false, and batch the
> appends/increments to server. The batch operation will always return false.
> The reason is that, since return result is set to false, append/increment
> will return null instead of Result object. But in
> ResponseConverter#getResults, there is some check code
> {code}
> if (requestRegionActionCount != responseRegionActionResultCount) {
> throw new IllegalStateException("Request mutation count=" +
> requestRegionActionCount +
> " does not match response mutation result count=" +
> responseRegionActionResultCount);
> }
> {code}
> That means if the result count is not meet with request mutation count, it
> will fail the request.
> The solution is simple, instead of returning a null result, returning a empty
> result if ReturnResult set to false.
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