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https://issues.apache.org/jira/browse/HBASE-19437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Ping Tsai updated HBASE-19437:
-----------------------------------
Release Note: The result from server is changed from null to
Result.EMPTY_RESULT when Append/Increment operation can't retrieve any data
from server, (was: If Mutation#isReturnResults is false and
RegionObserver#preAppendAfterRowLock doesn't return null, the result from
server is changed from null to Result.EMPTY_RESULT)
> Batch operation can't handle the null result for Append/Increment
> -----------------------------------------------------------------
>
> Key: HBASE-19437
> URL: https://issues.apache.org/jira/browse/HBASE-19437
> Project: HBase
> Issue Type: Bug
> Components: Usability
> Reporter: Chia-Ping Tsai
> Assignee: Chia-Ping Tsai
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: HBASE-19437.v0.patch, HBASE-19437.v0.patch
>
>
> But the Table#append and #increment can handle the null result...that is an
> inconsistent behavior for user.
> I have noticed two scenarios that server will return null result to user.
> # postAppend/postIncrement return null
> # mutation.isReturnResults() is false and
> preIncrementAfterRowLock/preAppendAfterRowLock doesn't return null
> We should wrap the null to empty result on server side. CP user should throw
> Exception rather than return null if they intend to say something is broken.
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