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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HBASE-2026) NPE in StoreScanner on compaction
Date Mon, 28 Dec 2009 18:43:29 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jean-Daniel Cryans resolved HBASE-2026.
---------------------------------------

    Resolution: Fixed
      Assignee: Jean-Daniel Cryans

I'm committing my patch to both branch and trunk as it at least won't throw an NPE. If someone
is ever able to unit test it, that would be great, because I wasn't able to.

> NPE in StoreScanner on compaction
> ---------------------------------
>
>                 Key: HBASE-2026
>                 URL: https://issues.apache.org/jira/browse/HBASE-2026
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.2
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 0.20.3, 0.21.0
>
>         Attachments: HBASE-2026.patch
>
>
> From Zhenyu:
> {code}
> 2009-12-01 00:35:05,321 INFO org.apache.hadoop.hbase.regionserver.HRegion: Starting compaction
on region ip_info_238,41.214.148.221,1259132082707
> 2009-12-01 00:35:05,572 WARN org.apache.hadoop.hbase.regionserver.Store: Not in setorg.apache.hadoop.hbase.regionserver.StoreScanner@7f821a6c
> 2009-12-01 00:35:05,572 WARN org.apache.hadoop.hbase.regionserver.Store: Not in setorg.apache.hadoop.hbase.regionserver.StoreScanner@7f821a6c
> 2009-12-01 00:35:05,572 ERROR org.apache.hadoop.hbase.regionserver.CompactSplitThread:
Compaction failed for region ip_info_238,41.214.148.221,1259132082707
> java.lang.NullPointerException
> 	at org.apache.hadoop.hbase.regionserver.StoreScanner.updateReaders(StoreScanner.java:250)
> 	at org.apache.hadoop.hbase.regionserver.Store.notifyChangedReadersObservers(Store.java:628)
> ...
> {code}

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