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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-3023) NPE processing server crash in MetaReader. getServerUserRegions
Date Tue, 21 Sep 2010 22:01:40 GMT

     [ https://issues.apache.org/jira/browse/HBASE-3023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-3023:
-------------------------

    Attachment: 3023.txt

Patch that allows that the return from metaRowToRegionPair may contain a null address (updated
javadoc to match).

> NPE processing server crash in MetaReader. getServerUserRegions
> ---------------------------------------------------------------
>
>                 Key: HBASE-3023
>                 URL: https://issues.apache.org/jira/browse/HBASE-3023
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>             Fix For: 0.90.0
>
>         Attachments: 3023.txt
>
>
> {code}
> 2010-09-21 18:28:30,856 ERROR
> org.apache.hadoop.hbase.executor.EventHandler: Caught throwable while
> processing event M_SERVER_SHUTDOWN
> java.lang.NullPointerException
>        at org.apache.hadoop.hbase.catalog.MetaReader.getServerUserRegions(MetaReader.java:413)
>        at org.apache.hadoop.hbase.master.handler.ServerShutdownHandler.process(ServerShutdownHandler.java:106)
>        at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:150)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>        at java.lang.Thread.run(Thread.java:619)
> {code}
> Problem is that there was no server set in .META. yet for a particular row but we went
ahead tried to use the server as though it non-null.

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