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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2026) NPE in StoreScanner on compaction
Date Thu, 03 Dec 2009 20:13:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12785478#action_12785478
] 

Jean-Daniel Cryans commented on HBASE-2026:
-------------------------------------------

Easy fix I'm not sure... We could check for null and then not set the row but I'm not sure
what's going to be the resulting behavior. I'm also not even sure how we can get into that
state, I'll try to write a unit test.

> 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
>             Fix For: 0.20.3, 0.21.0
>
>
> 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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