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From "stack (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5279) NPE in Master after upgrading to 0.92.0
Date Wed, 25 Jan 2012 21:45:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13193363#comment-13193363
] 

stack commented on HBASE-5279:
------------------------------

Skipping should be fine.  You have a scan of .META. from before upgrade?

Are you up now?
                
> 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
>         Attachments: 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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