Disabling a table can return too soon if one region is pending open
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Key: HBASE-2067
URL: https://issues.apache.org/jira/browse/HBASE-2067
Project: Hadoop HBase
Issue Type: Sub-task
Affects Versions: 0.20.2
Reporter: Jean-Daniel Cryans
Assignee: Jean-Daniel Cryans
Fix For: 0.20.3, 0.21.0
Still using my test I was grepping for "Duplicate assignment" and found that:
{code}
2009-12-22 01:43:31,450 DEBUG [IPC Server handler 3 on 60000]
master.ChangeTableState(70): Processing unserved regions
2009-12-22 01:43:31,450 INFO [RegionServer:2.worker]
regionserver.HRegion(343): region table8,,1261474997182/1735800584 available;
sequence id is 0
2009-12-22 01:43:31,451 DEBUG [IPC Server handler 3 on 60000]
master.ChangeTableState(102): Removed server and startcode from row and set
online=false: table8,,1261474997182
2009-12-22 01:43:31,451 DEBUG [IPC Server handler 3 on 60000]
master.ChangeTableState(120): Processing regions currently being
served2009-12-22 01:43:31,451 DEBUG [main]
client.HConnectionManager$TableServers(776): Cache hit for row <> in tableName
.META.: location server 192.168.1.103:54769, location region
name .META.,,1
2009-12-22 01:43:31,456 DEBUG [main]
client.HConnectionManager$TableServers(554): Rowscanned=1, rowsOffline=1
2009-12-22 01:43:31,456 INFO [main] client.HBaseAdmin(414): Disabled table8
2009-12-22 01:43:31,459 DEBUG [IPC Server handler 1 on 60000]
regionserver.HRegion(2003): DELETING region
hdfs://localhost:54729/user/jdcryans/table8/1735800584
2009-12-22 01:43:31,461 INFO [IPC Server handler 1 on 60000]
master.HMaster(807): deleted table: table8
2009-12-22 01:43:31,464 INFO [main] client.HBaseAdmin(302): Deleted table8
...
2009-12-22 01:43:31,541 INFO [IPC Server handler 2 on 60000]
master.ServerManager(421): Processing MSG_REPORT_PROCESS_OPEN:
table8,,1261474997182 from 192.168.1.103,54771,1261
474989274; 1 of 2
2009-12-22 01:43:31,541 INFO [IPC Server handler 2 on 60000]
master.ServerManager(421): Processing MSG_REPORT_OPEN: table8,,1261474997182
from 192.168.1.103,54771,1261474989274; 2 of 2
2009-12-22 01:43:31,541 DEBUG [IPC Server handler 2 on 60000]
master.ServerManager(567): region server 192.168.1.103:54771 should not have
opened region table8,,1261474997182
2009-12-22 01:43:31,542 INFO [RegionServer:2] regionserver.HRegionServer(475):
MSG_REGION_CLOSE_WITHOUT_REPORT: table8,,1261474997182: Duplicate assignment
2009-12-22 01:43:31,542 INFO [RegionServer:2.worker]
regionserver.HRegionServer$Worker(1332): Worker:
MSG_REGION_CLOSE_WITHOUT_REPORT: table8,,1261474997182: Duplicate assignm
ent
{code}
So the region is marked as offline while it's pending open. The thread in
HCM.TableServer sees that as if the region was closed but it's not and it's
reporting just a little bit after.
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