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From Mario Lassnig <mario.lass...@cern.ch>
Subject Repairing a table
Date Tue, 12 Jun 2012 09:48:19 GMT
Hello,

I'm a bit stuck repairing a faulty table (on Hbase 0.92.1-cdh4.0.0, Hadoop 
2.0.0-cdh4.0.0)

There is a region in transition that doesn't finish:

Region	State
bf2025f4bc154914b5942af4e72ea063 
counter_traces,1329773878.35_766a0b4df75e4381a686fbc07db9e333,1339425291230.bf2025f4bc154914b5942af4e72ea063.

state=OFFLINE, ts=Tue Jun 12 11:43:53 CEST 2012 (0s ago), server=null

When I run sudo -u hbase hbase hbck -repair, I get this:

Number of empty REGIONINFO_QUALIFIER rows in .META.: 0
ERROR: Region { meta => 
counter_traces,1329773878.35_766a0b4df75e4381a686fbc07db9e333,1339425291230.bf2025f4bc154914b5942af4e72ea063.,

hdfs => 
hdfs://hbase001:8020/hbase/counter_traces/bf2025f4bc154914b5942af4e72ea063, 
deployed =>  } not deployed on any region server.
Trying to fix unassigned region...
12/06/12 11:44:40 INFO util.HBaseFsckRepair: Region still in transition, waiting 
for it to become assigned: {NAME => 
'counter_traces,1329773878.35_766a0b4df75e4381a686fbc07db9e333,1339425291230.bf2025f4bc154914b5942af4e72ea063.',

STARTKEY => '1329773878.35_766a0b4df75e4381a686fbc07db9e333', ENDKEY => 
'1329793347.58_163865765c0a11e184ab003048f0e77e', ENCODED => 
bf2025f4bc154914b5942af4e72ea063,}

and it just loops.

If I don't do the -repair, I get this:

Number of empty REGIONINFO_QUALIFIER rows in .META.: 0
ERROR: Region { meta => 
counter_traces,1329773878.35_766a0b4df75e4381a686fbc07db9e333,1339425291230.bf2025f4bc154914b5942af4e72ea063.,

hdfs => 
hdfs://hbase001:8020/hbase/counter_traces/bf2025f4bc154914b5942af4e72ea063, 
deployed =>  } not deployed on any region server.
ERROR: Region { meta => 
counter_traces,1329816776.95_95b5561f3c1e496598421359a19ac665,1339425297099.ee1fd808d954c9adc9ed95ec2f29d119.,

hdfs => 
hdfs://hbase001:8020/hbase/counter_traces/ee1fd808d954c9adc9ed95ec2f29d119, 
deployed =>  } not deployed on any region server.
12/06/12 11:45:59 DEBUG util.HBaseFsck: There are 134 region info entries
ERROR: There is a hole in the region chain between 
1329773878.35_766a0b4df75e4381a686fbc07db9e333 and 
1329793347.58_163865765c0a11e184ab003048f0e77e.  You need to create a new 
.regioninfo and region dir in hdfs to plug the hole.
ERROR: There is a hole in the region chain between 
1329816776.95_95b5561f3c1e496598421359a19ac665 and 
1329847231.75_b3c50776778b43e088dd7ed865e11331.  You need to create a new 
.regioninfo and region dir in hdfs to plug the hole.
ERROR: Found inconsistency in table counter_traces



I've run -repair a couple of times before, and it helped. But this time,
not anymore.

Ok, so this states to do a manual intervention to fix this. Could someone
point me in the right direction on how to do this? A recipe, webpage, example,
anything will help.

Thank you,
Mario



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