NPE in processRegionInTransition causing master abort
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Key: HBASE-3346
URL: https://issues.apache.org/jira/browse/HBASE-3346
Project: HBase
Issue Type: Bug
Components: master
Affects Versions: 0.90.0
Reporter: Todd Lipcon
Priority: Blocker
After the abort in HBASE-3345, I restarted the master, and it crashed again
during startup
2010-12-13 12:57:00,367 DEBUG
org.apache.hadoop.hbase.master.handler.ClosedRegionHandler: Handling CLOSED
event for c5005ca650c7e3bdbab4c8d3e9b7c618
2010-12-13 12:57:00,367 DEBUG org.apache.hadoop.hbase.master.AssignmentManager:
Table being disabled so deleting ZK node and removing from regions in
transition, skipping assignment of region usertable
2010-12-13 12:57:00,367 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign:
master:60000-0x12c780205200116 Deleting existing unassigned node for
c5005ca650c7e3bdbab4c8d3e9b7c618 that is in expected state
2010-12-13 12:57:00,367 DEBUG org.apache.hadoop.hbase.zookeeper.ZKUtil:
master:60000-0x12c780205200116 Retrieved 127 byte(s) of data from znode
/hbase/unassigned/c5005ca650c7e3bdbab4c8d3e9b7c618; data=
2010-12-13 12:57:00,373 DEBUG
org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher:
master:60000-0x12c780205200116 Received ZooKeeper Event, type=NodeDeleted,
state=SyncConnected, path=/hbase/unassigned/
2010-12-13 12:57:00,374 DEBUG
org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher:
master:60000-0x12c780205200116 Received ZooKeeper Event,
type=NodeChildrenChanged, state=SyncConnected, path=/hbase/una
2010-12-13 12:57:00,374 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign:
master:60000-0x12c780205200116 Successfully deleted unassigned node for region
c5005ca650c7e3bdbab4c8d3e9b7c618 in expected sta
2010-12-13 12:57:00,374 DEBUG org.apache.hadoop.hbase.zookeeper.ZKUtil:
master:60000-0x12c780205200116 Retrieved 114 byte(s) of data from znode
/hbase/unassigned/3dc9df76f111271c150c853716ce1f07 and se
2010-12-13 12:57:00,376 FATAL org.apache.hadoop.hbase.master.HMaster: Unhandled
exception. Starting shutdown.
java.lang.NullPointerException
at
org.apache.hadoop.hbase.master.AssignmentManager.processRegionInTransition(AssignmentManager.java:263)
at
org.apache.hadoop.hbase.master.AssignmentManager.processFailover(AssignmentManager.java:222)
at
org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:392)
at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:274)
2010-12-13 12:57:00,377 INFO org.apache.hadoop.hbase.master.HMaster: Aborting
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