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Date: Mon, 20 Feb 2012 22:19:43 +0000 (UTC)
From: "Hudson (Commented) (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HBASE-5279) NPE in Master after upgrading to
 0.92.0
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    [ https://issues.apache.org/jira/browse/HBASE-5279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13212159#comment-13212159 ] 

Hudson commented on HBASE-5279:
-------------------------------

Integrated in HBase-0.92-security #91 (See [https://builds.apache.org/job/HBase-0.92-security/91/])
    HBASE-5279 NPE in Master after upgrading to 0.92.0 (Revision 1245769)

     Result = FAILURE
stack : 
Files : 
* /hbase/branches/0.92/CHANGES.txt
* /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/catalog/MetaReader.java
* /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java

                
> NPE in Master after upgrading to 0.92.0
> ---------------------------------------
>
>                 Key: HBASE-5279
>                 URL: https://issues.apache.org/jira/browse/HBASE-5279
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.92.0
>            Reporter: Tobias Herbert
>            Priority: Critical
>             Fix For: 0.92.1
>
>         Attachments: HBASE-5279-v2.patch, HBASE-5279.patch
>
>
> I have upgraded my environment from 0.90.4 to 0.92.0
> after the table migration I get the following error in the master (permanent)
> {noformat}
> 2012-01-25 18:23:48,648 FATAL master-namenode,60000,1327512209588 org.apache.hadoop.hbase.master.HMaster - Unhandled exception. Starting shutdown.
> java.lang.NullPointerException
>         at org.apache.hadoop.hbase.master.AssignmentManager.rebuildUserRegions(AssignmentManager.java:2190)
>         at org.apache.hadoop.hbase.master.AssignmentManager.joinCluster(AssignmentManager.java:323)
>         at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:501)
>         at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:326)
>         at java.lang.Thread.run(Thread.java:662)
> 2012-01-25 18:23:48,650 INFO namenode,60000,1327512209588 org.apache.hadoop.hbase.master.HMaster - Aborting
> {noformat}
> I think that's because I had a hard crash in the cluster a while ago - and the following WARN since then
> {noformat}
> 2012-01-25 21:20:47,121 WARN namenode,60000,1327513078123-CatalogJanitor org.apache.hadoop.hbase.master.CatalogJanitor - REGIONINFO_QUALIFIER is empty in keyvalues={emails,,xxx./info:server/1314336400471/Put/vlen=38, emails,,1314189353300.xxx./info:serverstartcode/1314336400471/Put/vlen=8}
> {noformat}
> my patch was simple to go around the NPE (as the other code around the lines)
> but I don't know if that's correct

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