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https://issues.apache.org/jira/browse/HBASE-7?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12899087#action_12899087
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Luke Forehand commented on HBASE-7:
-----------------------------------
I just ran this utility on our corrupt META table and got this exception:
Exception in thread "main" java.io.IOException: Two entries in META are same
REGION => {NAME => 'feedData,20100717
0463ff1d352930dc354f35358d3d11997c2fa050,1281549071340.d905798b9e7dca1c24a09a908bd1081c.',
STARTKEY => '20100717 0463ff1d352930dc354f35358d3d11997c2fa050', ENDKEY =>
'20100717 25beb50790d72e3e2bf1fbebc0656dbcd82cdbd3', ENCODED =>
d905798b9e7dca1c24a09a908bd1081c, TABLE => {{NAME => 'feedData', FAMILIES =>
[{NAME => 'core', BLOOMFILTER => 'NONE', REPLICATION_SCOPE => '0', COMPRESSION
=> 'LZO', VERSIONS => '3', TTL => '2147483647', BLOCKSIZE => '131072',
IN_MEMORY => 'false', BLOCKCACHE => 'true'}, {NAME => 'tf', BLOOMFILTER =>
'NONE', REPLICATION_SCOPE => '0', COMPRESSION => 'LZO', VERSIONS => '3', TTL =>
'2147483647', BLOCKSIZE => '131072', IN_MEMORY => 'false', BLOCKCACHE =>
'true'}, {NAME => 'tfidf', BLOOMFILTER => 'NONE', REPLICATION_SCOPE => '0',
COMPRESSION => 'LZO', VERSIONS => '3', TTL => '2147483647', BLOCKSIZE =>
'131072', IN_MEMORY => 'false', BLOCKCACHE => 'true'}]}}
at
org.apache.hadoop.hbase.client.HBaseFsck$1.processRow(HBaseFsck.java:420)
at
org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:156)
at
org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:68)
at
org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:53)
at com.ni.ods.hadoop.utils.HBaseFsck.getMetaEntries(HBaseFsck.java:435)
at com.ni.ods.hadoop.utils.HBaseFsck.doWork(HBaseFsck.java:109)
at com.ni.ods.hadoop.utils.HBaseFsck.main(HBaseFsck.java:522)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:186)
> [hbase] Provide a HBase checker and repair tool similar to fsck
> ---------------------------------------------------------------
>
> Key: HBASE-7
> URL: https://issues.apache.org/jira/browse/HBASE-7
> Project: HBase
> Issue Type: New Feature
> Components: util
> Reporter: Jim Kellerman
> Assignee: dhruba borthakur
> Fix For: 0.90.0
>
> Attachments: add_region.rb, check_meta.rb, check_meta.rb,
> HBASE-7.patch, hbase.fsck1.txt, HBaseConfiguration.java, HBaseFsck.java,
> patch.txt
>
>
> We need a tool to verify (and repair) HBase much like fsck
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