Hi,
We have an empty table that is somehow in a bad state that I'm unable
to disable or drop. We're running 0.90.0 on CDH3b2. Is there a way
that I can manually remove this table from HBase without making a mess
of things?
The table has 2 CFs and it's empty. When I do a scan I get this:
org.apache.hadoop.hbase.NotServingRegionException:
org.apache.hadoop.hbase.NotServingRegionException: Region is not
online: kpd_user_info2,,1300458908181.412ae74e76cc4000da10233b3e6f163e.
at
org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2319)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:1764)
at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:570)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1036)
And when I try to disable it, the command hangs and this message
appears in the HBase master every 40 seconds:
2011-03-29 14:27:39,373 INFO
org.apache.hadoop.hbase.master.AssignmentManager: Regions in
transition timed out:
kpd_user_info2,,1300458908181.412ae74e76cc4000da10233b3e6f163e.
state=PENDING_CLOSE, ts=1301434029373
2011-03-29 14:27:39,374 INFO
org.apache.hadoop.hbase.master.AssignmentManager: Region has been
PENDING_CLOSE for too long, running forced unassign again on
region=kpd_user_info2,,1300458908181.412ae74e76cc4000da10233b3e6f163e.
2011-03-29 14:27:39,376 DEBUG
org.apache.hadoop.hbase.master.AssignmentManager: Starting
unassignment of region
kpd_user_info2,,1300458908181.412ae74e76cc4000da10233b3e6f163e.
(offlining)
2011-03-29 14:27:39,376 DEBUG
org.apache.hadoop.hbase.master.AssignmentManager: Attempting to
unassign region
kpd_user_info2,,1300458908181.412ae74e76cc4000da10233b3e6f163e. which
is already pending close but forcing an additional close
2011-03-29 14:27:39,382 DEBUG
org.apache.hadoop.hbase.master.AssignmentManager: Server
serverName=hadoop-wkr-r52-n1.somedomain.com,60020,1299170041690,
load=(requests=0, regions=0, usedHeap=0, maxHeap=0) returned
org.apache.hadoop.hbase.NotServingRegionException:
org.apache.hadoop.hbase.NotServingRegionException: Received close for
kpd_user_info2,,1300458908181.412ae74e76cc4000da10233b3e6f163e. but we
are not serving it for 412ae74e76cc4000da10233b3e6f163e
What would happen if I manually removed it's regions from .META. and
it's directory from HDFS?
thanks,
Bill
