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Posted to issues@hbase.apache.org by "Cosmin Lehene (JIRA)" <ji...@apache.org> on 2010/06/15 16:23:25 UTC
[jira] Updated: (HBASE-2731) HBase won't start due to
NodeExistsException in Zookeeper based region assignment
[ https://issues.apache.org/jira/browse/HBASE-2731?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Cosmin Lehene updated HBASE-2731:
---------------------------------
Description:
We're getting zillions of these in HMaster when it starts assigning regions at startup and it doesn't seem to progress.
{code}
2010-06-15 06:30:00,287 WARN org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper:
<org.apache.hadoop.hbase.master.HMaster>Failed to create ZNode /hbase/UNASSIGNED/1766164500 in ZooKeeper^D
org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists for /hbase/UNASSIGNED/1766164500^D
at org.apache.zookeeper.KeeperException.create(KeeperException.java:110)^D
at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)^D
at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:637)^D
at org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.createZNodeIfNotExists(ZooKeeperWrapper.java:974)^D
at org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.createUnassignedRegion(ZooKeeperWrapper.java:1053)^D
at org.apache.hadoop.hbase.master.RegionManager.doRegionAssignment(RegionManager.java:355)^D
at org.apache.hadoop.hbase.master.RegionManager.assignRegions(RegionManager.java:312)^D
at org.apache.hadoop.hbase.master.RegionManager.assignRegionsToMultipleServers(RegionManager.java:292)^D
at org.apache.hadoop.hbase.master.RegionManager.assignRegions(RegionManager.java:221)^D
at org.apache.hadoop.hbase.master.ServerManager.processMsgs(ServerManager.java:500)^D
at org.apache.hadoop.hbase.master.ServerManager.processRegionServerAllsWell(ServerManager.java:425)^D
at org.apache.hadoop.hbase.master.ServerManager.regionServerReport(ServerManager.java:335)^D
at org.apache.hadoop.hbase.master.HMaster.regionServerReport(HMaster.java:700)^D
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)^D
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)^D
at java.lang.reflect.Method.invoke(Method.java:597)^D
at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:576)^D
at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:919)
{code}
was:
We're getting zillions of these in HMaster when it starts assigning regions at startup and it doesn't seem to progress.
{code}
2010-06-15 06:30:00,287 WARN org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: <org.apache.hadoop.hbase.master.HMaster>Failed to create ZNode /hbase/UNASSIGNED/1766164500 in ZooKeeper^D
org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists for /hbase/UNASSIGNED/1766164500^D
at org.apache.zookeeper.KeeperException.create(KeeperException.java:110)^D
at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)^D
at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:637)^D
at org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.createZNodeIfNotExists(ZooKeeperWrapper.java:974)^D
at org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.createUnassignedRegion(ZooKeeperWrapper.java:1053)^D
at org.apache.hadoop.hbase.master.RegionManager.doRegionAssignment(RegionManager.java:355)^D
at org.apache.hadoop.hbase.master.RegionManager.assignRegions(RegionManager.java:312)^D
at org.apache.hadoop.hbase.master.RegionManager.assignRegionsToMultipleServers(RegionManager.java:292)^D
at org.apache.hadoop.hbase.master.RegionManager.assignRegions(RegionManager.java:221)^D
at org.apache.hadoop.hbase.master.ServerManager.processMsgs(ServerManager.java:500)^D
at org.apache.hadoop.hbase.master.ServerManager.processRegionServerAllsWell(ServerManager.java:425)^D
at org.apache.hadoop.hbase.master.ServerManager.regionServerReport(ServerManager.java:335)^D
at org.apache.hadoop.hbase.master.HMaster.regionServerReport(HMaster.java:700)^D
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)^D
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)^D
at java.lang.reflect.Method.invoke(Method.java:597)^D
at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:576)^D
at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:919)
{code}
> HBase won't start due to NodeExistsException in Zookeeper based region assignment
> ---------------------------------------------------------------------------------
>
> Key: HBASE-2731
> URL: https://issues.apache.org/jira/browse/HBASE-2731
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 0.21.0
> Reporter: Cosmin Lehene
> Priority: Blocker
> Fix For: 0.21.0
>
>
> We're getting zillions of these in HMaster when it starts assigning regions at startup and it doesn't seem to progress.
> {code}
> 2010-06-15 06:30:00,287 WARN org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper:
> <org.apache.hadoop.hbase.master.HMaster>Failed to create ZNode /hbase/UNASSIGNED/1766164500 in ZooKeeper^D
> org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = NodeExists for /hbase/UNASSIGNED/1766164500^D
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:110)^D
> at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)^D
> at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:637)^D
> at org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.createZNodeIfNotExists(ZooKeeperWrapper.java:974)^D
> at org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.createUnassignedRegion(ZooKeeperWrapper.java:1053)^D
> at org.apache.hadoop.hbase.master.RegionManager.doRegionAssignment(RegionManager.java:355)^D
> at org.apache.hadoop.hbase.master.RegionManager.assignRegions(RegionManager.java:312)^D
> at org.apache.hadoop.hbase.master.RegionManager.assignRegionsToMultipleServers(RegionManager.java:292)^D
> at org.apache.hadoop.hbase.master.RegionManager.assignRegions(RegionManager.java:221)^D
> at org.apache.hadoop.hbase.master.ServerManager.processMsgs(ServerManager.java:500)^D
> at org.apache.hadoop.hbase.master.ServerManager.processRegionServerAllsWell(ServerManager.java:425)^D
> at org.apache.hadoop.hbase.master.ServerManager.regionServerReport(ServerManager.java:335)^D
> at org.apache.hadoop.hbase.master.HMaster.regionServerReport(HMaster.java:700)^D
> at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)^D
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)^D
> at java.lang.reflect.Method.invoke(Method.java:597)^D
> at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:576)^D
> at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:919)
> {code}
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