Region fails to split
---------------------
Key: HBASE-3312
URL: https://issues.apache.org/jira/browse/HBASE-3312
Project: HBase
Issue Type: Bug
Reporter: Andrew Purtell
Priority: Critical
Fix For: 0.90.0
"SplitTransaction: Split row is not inside region key range or is equal to
startkey".
I stopped writers after realizing one region of the table was growing unbounded:
{noformat}
webtable,DE0CBA1D6CDFCDD6CBC1065D2C9C1CA17BDA0FAF,1291557809928.
deccb20bcbf8e634008cf093105c4fc5.
stores=3, storefiles=10, storefileSizeMB=6753, memstoreSizeMB=2,
storefileIndexSizeMB=2
{noformat}
In the regionserver log, every compaction of this region fails to split with
the following messages:
{noformat}
2010-12-05 09:04:50,156 INFO org.apache.hadoop.hbase.regionserver.HRegion:
Starting compaction on region webtable,DE0CBA1D6CDFCDD6CBC1065D2C9C1CA17BDA0FAF,
1291557809928.deccb20bcbf8e634008cf093105c4fc5.
2010-12-05 09:04:50,156 INFO org.apache.hadoop.hbase.regionserver.HRegion:
completed compaction on region
webtable,DE0CBA1D6CDFCDD6CBC1065D2C9C1CA17BDA0FAF,
1291557809928.deccb20bcbf8e634008cf093105c4fc5. after 0sec
2010-12-05 09:04:50,156 INFO
org.apache.hadoop.hbase.regionserver.SplitTransaction:
Split row is not inside region key range or is equal to startkey:
DE0CBA1D6CDFCDD6CBC1065D2C9C1CA17BDA0FAF
{noformat}
However there are many rows in the region:
{noformat}
10/12/05 09:33:33 DEBUG client.HTable$ClientScanner: Advancing internal scanner
to startKey at 'DE0CBA1D6CDFCDD6CBC1065D2C9C1CA17BDA0FAF'
[...]
Current count: 258000, row: DE424FBDBD15FF3B3E9D0C3DB149ECD29B0F615B
Current count: 259000, row: DF27251479D6C91B27AA9B1561070A53011A6D1E
10/12/05 09:33:36 DEBUG client.HTable$ClientScanner: Finished with region
REGION =>
{NAME => 'webtable,DE0CBA1D6CDFCDD6CBC1065D2C9C1CA17BDA0FAF,
1291557809928.deccb20bcbf8e634008cf093105c4fc5.',
STARTKEY => 'DE0CBA1D6CDFCDD6CBC1065D2C9C1CA17BDA0FAF',
ENDKEY => 'DF76CF458433DB5D0CB2C50042452B296E3721A7',
ENCODED => deccb20bcbf8e634008cf093105c4fc5, TABLE => {{NAME => 'webtable',
FAMILIES => [{NAME => 'content', BLOOMFILTER => 'NONE', REPLICATION_SCOPE =>
'0',
VERSIONS => '2147483647', COMPRESSION => 'LZO', TTL => '2147483647',
BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE => 'false'},
{NAME => 'info', BLOOMFILTER => 'NONE', REPLICATION_SCOPE => '0',
VERSIONS => '2147483647', COMPRESSION => 'LZO', TTL => '2147483647',
BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE => 'false'},
{NAME => 'url', BLOOMFILTER => 'NONE', REPLICATION_SCOPE => '0',
VERSIONS => '1', COMPRESSION => 'LZO', TTL => '2147483647',
BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE => 'false'}]}}
10/12/05 09:33:36 DEBUG client.HTable$ClientScanner: Advancing internal scanner
to startKey at 'DF76CF458433DB5D0CB2C50042452B296E3721A7'
{noformat}
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