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Date: Wed, 19 May 2010 00:36:53 -0400 (EDT)
From: "stack (JIRA)" <jira@apache.org>
To: hbase-dev@hadoop.apache.org
Subject: [jira] Resolved: (HBASE-2561) Scanning .META. while split in
 progress yields IllegalArgumentException
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     [ https://issues.apache.org/jira/browse/HBASE-2561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack resolved HBASE-2561.
--------------------------

     Hadoop Flags: [Reviewed]
    Fix Version/s: 0.21.0
       Resolution: Fixed

I tried it.  Scan still works.  Committing.  Unit test is kinda hard to do in here.  You could do standalone but patch looks like it does the job and its small change.

> Scanning .META. while split in progress yields IllegalArgumentException
> -----------------------------------------------------------------------
>
>                 Key: HBASE-2561
>                 URL: https://issues.apache.org/jira/browse/HBASE-2561
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.21.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Critical
>             Fix For: 0.21.0
>
>         Attachments: hbase-2561.txt
>
>
> Running scan '.META.' from the shell throws IllegalArgumentException if a split is running at the same time:
> hbase(main):004:0> scan '.META.'
> ROW                          COLUMN+CELL                                                                      
>  VerifiableEditor,,127414503 column=info:regioninfo, timestamp=1274145178356, value=REGION => {NAME => 'Verifi
>  3318                        ableEditor,,1274145033318', STARTKEY => '', ENDKEY => '-1942612687<1274143362177>
>                              ', ENCODED => 1741581486, OFFLINE => true, SPLIT => true, TABLE => {{NAME => 'Ver
>                              ifiableEditor', FAMILIES => [{NAME => 'info', REPLICATION_SCOPE => '0', COMPRESSI
>                              ON => 'NONE', VERSIONS => '3', TTL => '2147483647', BLOCKSIZE => '65536', IN_MEMO
>                              RY => 'false', BLOCKCACHE => 'true'}]}}                                          
>  VerifiableEditor,,127414503 column=info:server, timestamp=1274145178356, value=                              
>  3318                                                                                                         
> ERROR: java.lang.IllegalArgumentException: offset (0) + length (8) exceed the capacity of the array: 0

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