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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5345) CheckAndPut doesn't work when value is empty byte[]
Date Fri, 10 Feb 2012 10:28:06 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205343#comment-13205343
] 

Hudson commented on HBASE-5345:
-------------------------------

Integrated in HBase-TRUNK #2656 (See [https://builds.apache.org/job/HBase-TRUNK/2656/])
    HBASE-5345  CheckAndPut doesn't work when value is empty byte[] (Evert Arckens)

tedyu : 
Files : 
* /hbase/trunk/CHANGES.txt
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
* /hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java

                
> 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
>            Assignee: Evert Arckens
>             Fix For: 0.94.0, 0.92.1
>
>         Attachments: 5345-v2.txt, 5345.txt, 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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