Hadoop QA commented on ZOOKEEPER-596:

+1 overall.  Here are the results of testing the latest attachment 
  against trunk revision 892001.

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

    +1 tests included.  The patch appears to include 9 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac 
compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of 
release audit warnings.

    +1 core tests.  The patch passed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: 
Findbugs warnings: 
Console output: 

This message is automatically generated.

> The last logged zxid calculated by zookeeper servers could cause problems in 
> leader election if data gets corrupted.
> --------------------------------------------------------------------------------------------------------------------
>                 Key: ZOOKEEPER-596
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-596
>             Project: Zookeeper
>          Issue Type: Bug
>    Affects Versions: 3.2.1
>            Reporter: Mahadev konar
>            Assignee: Mahadev konar
>             Fix For: 3.3.0
>         Attachments: ZOOKEEPER-596.patch, ZOOKEEPER-596.patch, 
> ZOOKEEPER-596.patch, ZOOKEEPER-596.patch, ZOOKEEPER-596.patch, 
> ZOOKEEPER-596.patch
> It is possible that the last loggged zxid as reported by all the servers 
> during leader election is not the last zxid that the server can upload data 
> to. It is very much possible that some transaction or snapshot gets corrupted 
> and the servers actually do not have valid data till last logged zxid. We 
> need to make sure that what the servers report as there last logged zxid, 
> they are able to load data till that zxid.

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