hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2244) META gets inconsistent in a number of crash scenarios
Date Sat, 20 Feb 2010 23:40:27 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12836280#action_12836280
] 

stack commented on HBASE-2244:
------------------------------

I'm on it.  Patch soon.

> META gets inconsistent in a number of crash scenarios
> -----------------------------------------------------
>
>                 Key: HBASE-2244
>                 URL: https://issues.apache.org/jira/browse/HBASE-2244
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: Kannan Muthukkaruppan
>            Assignee: stack
>            Priority: Critical
>             Fix For: 0.20.4
>
>
> (Forking this issue off from HBASE-2235).
> During load testing, in a number of failure scenarios (unexpected region server deaths)
etc., we notice that META can get inconsistent. This primarily happens for regions which are
in the process of being split. Manually running add_table.rb seems to fix the tables meta
data just fine. 
> But it would be good to do automatic cleansing (as part of META scanners work) and/or
avoid these inconsistent states altogether.
> For example, for a particular startkey, I see all these entries:
> {code}
> test1,1204765,1266569946560 column=info:regioninfo, timestamp=1266581302018, value=REGION
=> {NAME => 'test1,
>                              1204765,1266569946560', STARTKEY => '1204765', ENDKEY
=> '1441091', ENCODED => 18
>                              19368969, OFFLINE => true, SPLIT => true, TABLE =>
{{NAME => 'test1', FAMILIES =>
>                               [{NAME => 'actions', VERSIONS => '3', COMPRESSION
=> 'NONE', TTL => '2147483647'
>                              , BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE
=> 'true'}]}}
>  test1,1204765,1266569946560 column=info:server, timestamp=1266570029133, value=10.129.68.212:60020
>  test1,1204765,1266569946560 column=info:serverstartcode, timestamp=1266570029133, value=1266562597546
>  test1,1204765,1266569946560 column=info:splitB, timestamp=1266581302018, value=\x00\x071441091\x00\x00\x00\x0
>                              1\x26\xE6\x1F\xDF\x27\x1Btest1,1290703,1266581233447\x00\x071290703\x00\x00\x00\x
>                              05\x05test1\x00\x00\x00\x00\x00\x02\x00\x00\x00\x07IS_ROOT\x00\x00\x00\x05false\x
>                              00\x00\x00\x07IS_META\x00\x00\x00\x05false\x00\x00\x00\x01\x07\x07actions\x00\x00
>                              \x00\x07\x00\x00\x00\x0BBLOOMFILTER\x00\x00\x00\x05false\x00\x00\x00\x0BCOMPRESSI
>                              ON\x00\x00\x00\x04NONE\x00\x00\x00\x08VERSIONS\x00\x00\x00\x013\x00\x00\x00\x03TT
>                              L\x00\x00\x00\x0A2147483647\x00\x00\x00\x09BLOCKSIZE\x00\x00\x00\x0565536\x00\x00
>                              \x00\x09IN_MEMORY\x00\x00\x00\x05false\x00\x00\x00\x0ABLOCKCACHE\x00\x00\x00\x04t
>                              rueh\x0FQ\xCF
>  test1,1204765,1266581233447 column=info:regioninfo, timestamp=1266609172177, value=REGION
=> {NAME => 'test1,
>                              1204765,1266581233447', STARTKEY => '1204765', ENDKEY
=> '1290703', ENCODED => 13
>                              73493090, OFFLINE => true, SPLIT => true, TABLE =>
{{NAME => 'test1', FAMILIES =>
>                               [{NAME => 'actions', VERSIONS => '3', COMPRESSION
=> 'NONE', TTL => '2147483647'
>                              , BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE
=> 'true'}]}}
>  test1,1204765,1266581233447 column=info:server, timestamp=1266604768670, value=10.129.68.213:60020
>  test1,1204765,1266581233447 column=info:serverstartcode, timestamp=1266604768670, value=1266562597511
>  test1,1204765,1266581233447 column=info:splitA, timestamp=1266609172177, value=\x00\x071226169\x00\x00\x00\x0
>                              1\x26\xE7\xCA,\x7D\x1Btest1,1204765,1266609171581\x00\x071204765\x00\x00\x00\x05\
>                              x05test1\x00\x00\x00\x00\x00\x02\x00\x00\x00\x07IS_ROOT\x00\x00\x00\x05false\x00\
>                              x00\x00\x07IS_META\x00\x00\x00\x05false\x00\x00\x00\x01\x07\x07actions\x00\x00\x0
>                              0\x07\x00\x00\x00\x0BBLOOMFILTER\x00\x00\x00\x05false\x00\x00\x00\x0BCOMPRESSION\
>                              x00\x00\x00\x04NONE\x00\x00\x00\x08VERSIONS\x00\x00\x00\x013\x00\x00\x00\x03TTL\x
>                              00\x00\x00\x0A2147483647\x00\x00\x00\x09BLOCKSIZE\x00\x00\x00\x0565536\x00\x00\x0
>                              0\x09IN_MEMORY\x00\x00\x00\x05false\x00\x00\x00\x0ABLOCKCACHE\x00\x00\x00\x04true
>                              \xB9\xBD\xFEO
>  test1,1204765,1266581233447 column=info:splitB, timestamp=1266609172177, value=\x00\x071290703\x00\x00\x00\x0
>                              1\x26\xE7\xCA,\x7D\x1Btest1,1226169,1266609171581\x00\x071226169\x00\x00\x00\x05\
>                              x05test1\x00\x00\x00\x00\x00\x02\x00\x00\x00\x07IS_ROOT\x00\x00\x00\x05false\x00\
>                              x00\x00\x07IS_META\x00\x00\x00\x05false\x00\x00\x00\x01\x07\x07actions\x00\x00\x0
>                              0\x07\x00\x00\x00\x0BBLOOMFILTER\x00\x00\x00\x05false\x00\x00\x00\x0BCOMPRESSION\
>                              x00\x00\x00\x04NONE\x00\x00\x00\x08VERSIONS\x00\x00\x00\x013\x00\x00\x00\x03TTL\x
>                              00\x00\x00\x0A2147483647\x00\x00\x00\x09BLOCKSIZE\x00\x00\x00\x0565536\x00\x00\x0
>                              0\x09IN_MEMORY\x00\x00\x00\x05false\x00\x00\x00\x0ABLOCKCACHE\x00\x00\x00\x04true
>                              \xE1\xDF\xF8p
>  test1,1204765,1266609171581 column=info:regioninfo, timestamp=1266609172212, value=REGION
=> {NAME => 'test1,
>                              1204765,1266609171581', STARTKEY => '1204765', ENDKEY
=> '1226169', ENCODED => 21
>                              34878372, TABLE => {{NAME => 'test1', FAMILIES =>
[{NAME => 'actions', VERSIONS =
>                              > '3', COMPRESSION => 'NONE', TTL => '2147483647',
BLOCKSIZE => '65536', IN_MEMOR
>                              Y => 'false', BLOCKCACHE => 'true'}]}}
> {code}

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message