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Posted to dev@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2009/12/28 19:19:29 UTC
[jira] Resolved: (HBASE-2067) Disabling a table can return too soon
if one region is pending open
[ https://issues.apache.org/jira/browse/HBASE-2067?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Daniel Cryans resolved HBASE-2067.
---------------------------------------
Resolution: Duplicate
Fixed by HBASE-2065
> Disabling a table can return too soon if one region is pending open
> -------------------------------------------------------------------
>
> 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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