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Posted to issues@hbase.apache.org by "Jonathan Gray (JIRA)" <ji...@apache.org> on 2010/06/21 18:32:24 UTC
[jira] Assigned: (HBASE-2758) META region stuck in
RS2ZK_REGION_OPENED state
[ https://issues.apache.org/jira/browse/HBASE-2758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Gray reassigned HBASE-2758:
------------------------------------
Assignee: Karthik Ranganathan
Assigning to Karthik so he sees
> META region stuck in RS2ZK_REGION_OPENED state
> ----------------------------------------------
>
> Key: HBASE-2758
> URL: https://issues.apache.org/jira/browse/HBASE-2758
> Project: HBase
> Issue Type: Bug
> Components: master, regionserver
> Affects Versions: 0.21.0
> Reporter: Todd Lipcon
> Assignee: Karthik Ranganathan
> Priority: Blocker
>
> In cluster testing trunk, I ended up with a situation where META was unassigned and no amount of restarting various pieces would fix it. On master startup, I see:
> 2010-06-20 21:08:05,431 DEBUG org.apache.hadoop.hbase.master.BaseScanner: Current assignment of .META.,,1.1028785192 is not valid; serverAddress=, startCode=0 unknown.
> 2010-06-20 21:08:05,436 DEBUG org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: While creating UNASSIGNED region 1028785192 exists, state = RS2ZK_REGION_OPENED
> 2010-06-20 21:08:05,438 WARN org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: <monster01.sf.cloudera.com:/hbase,org.apache.hadoop.hbase.master.HMaster>Failed to create ZNode /hbase/UNASSIGNED/1028785192 in ZooKeeper
> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists for /hbase/UNASSIGNED/1028785192
> 2010-06-20 21:08:05,438 DEBUG org.apache.hadoop.hbase.master.RegionManager: Created UNASSIGNED zNode .META.,,1.1028785192 in state M2ZK_REGION_OFFLINE
> then on the RS:
> 2010-06-20 21:08:05,899 ERROR org.apache.hadoop.hbase.regionserver.RSZookeeperUpdater: ZNode /hbase/UNASSIGNED/1028785192 is not in CLOSED/OFFLINE state (state = RS2ZK_REGION_OPENED), will NOT open region.
> 2010-06-20 21:08:05,899 ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: Error opening .META.,,1.1028785192
> java.io.IOException: ZNode /hbase/UNASSIGNED/1028785192 is not in CLOSED/OFFLINE state (state = RS2ZK_REGION_OPENED), will NOT open region.
> and the region never opens
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