Lots of concurrent table deletes messes up .META. prefetch
----------------------------------------------------------
Key: HBASE-3761
URL: https://issues.apache.org/jira/browse/HBASE-3761
Project: HBase
Issue Type: Bug
Reporter: stack
Priority: Minor
Creating hundreds of tables with hundreds of regions I ran into this issue
doing mass table delete:
{code}
11/04/09 10:26:06 WARN client.HConnectionManager$HConnectionImplementation:
Encountered problems when prefetch META table:
org.apache.hadoop.hbase.TableNotFoundException: Cannot find row in .META. for
table: bbb_48, row=bbb_48,T�D��iy%��,99999999999999
at
org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:136)
at
org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:95)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.prefetchRegionCache(HConnectionManager.java:648)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:702)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:593)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.relocateRegion(HConnectionManager.java:564)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getRegionLocation(HConnectionManager.java:415)
at
org.apache.hadoop.hbase.client.ServerCallable.instantiateServer(ServerCallable.java:57)
at
org.apache.hadoop.hbase.client.ScannerCallable.instantiateServer(ScannerCallable.java:63)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getRegionServerWithRetries(HConnectionManager.java:1011)
at
org.apache.hadoop.hbase.client.HTable$ClientScanner.nextScanner(HTable.java:1077)
at
org.apache.hadoop.hbase.client.HTable$ClientScanner.initialize(HTable.java:1000)
at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:533)
{code}
The table was probably removed between start of prefetch scan and next
invocation.
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