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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5345) CheckAndPut doesn't work when value is empty byte[]
Date Tue, 07 Feb 2012 16:24:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13202508#comment-13202508

Hadoop QA commented on HBASE-5345:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    -1 patch.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/910//console

This message is automatically generated.
> CheckAndPut doesn't work when value is empty byte[]
> ---------------------------------------------------
>                 Key: HBASE-5345
>                 URL: https://issues.apache.org/jira/browse/HBASE-5345
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.92.0
>            Reporter: Evert Arckens
>         Attachments: checkAndMutateEmpty-HBASE-5345.patch
> When a value contains an empty byte[] and then a checkAndPut is performed with an empty
byte[] , the operation will fail.
> For example:
> Put put = new Put(row1);
> put.add(fam1, qf1, new byte[0]);
> table.put(put);
> put = new Put(row1);
> put.add(fam1, qf1, val1);
> table.checkAndPut(row1, fam1, qf1, new byte[0], put); ---> false
> I think this is related to HBASE-3793 and HBASE-3468.
> Note that you will also get into this situation when first putting a null value ( put.add(fam1,qf1,null)
), as this value will then be regarded and returned as an empty byte[] upon a get.

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