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https://issues.apache.org/jira/browse/HBASE-2504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean-Daniel Cryans resolved HBASE-2504.
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Resolution: Invalid
I think you should use an official release instead of checking out directly
from SVN, I would use the latest candidate for 0.20.4 if I was a new user.
Also, unless you are quite sure you found an HBase bug, I would suggest first
writing to the hbase-user mailing list so that we can help you with the triage.
Closing this jira now.
> Double assigned znodes in regionserver
> --------------------------------------
>
> Key: HBASE-2504
> URL: https://issues.apache.org/jira/browse/HBASE-2504
> Project: Hadoop HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.20.3
> Reporter: Miklos Kurucz
> Attachments: stackdump
>
>
> regionserver log:
> Thu Apr 29 13:34:27 CEST 2010 Starting regionserver on dell102
> ...
> 2010-04-29 13:34:29,656 INFO org.apache.zookeeper.ClientCnxn: Opening socket
> connection to server dell147/10.1.3.147:2181
> 2010-04-29 13:34:29,657 INFO org.apache.zookeeper.ClientCnxn: Socket
> connection established to dell147/10.1.3.147:2181, initiating session
> 2010-04-29 13:34:29,678 INFO org.apache.zookeeper.ClientCnxn: Session
> establishment complete on server dell147/10.1.3.147:2181, sessionid =
> 0x284958aa550001, negotiated timeout = 60000
> ...
> 2010-04-29 14:13:30,096 INFO org.apache.zookeeper.ZooKeeper: Initiating
> client connection, connectString=dell149:2181,dell148:2181,dell147:2181
> sessionTimeout=60000
> watcher=org.apache.hadoop.hbase.client.hconnectionmanager$clientzkwatc...@46d895e1
> 2010-04-29 14:13:30,096 INFO org.apache.zookeeper.ClientCnxn: Opening socket
> connection to server dell147/10.1.3.147:2181
> 2010-04-29 14:13:30,161 INFO org.apache.zookeeper.ClientCnxn: Socket
> connection established to dell147/10.1.3.147:2181, initiating session
> 2010-04-29 14:13:30,194 INFO org.apache.zookeeper.ClientCnxn: Session
> establishment complete on server dell147/10.1.3.147:2181, sessionid =
> 0x284958aa550014, negotiated timeout = 60000
> 2010-04-29 14:13:30,195 DEBUG
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.1.3.123:60020
> 2010-04-29 14:13:30,226 DEBUG
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Found ROOT at
> 10.1.3.123:60020
> 2010-04-29 14:13:30,243 DEBUG
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers: Cached
> location for .META.,,1 is 10.1.3.125:60020
> 2010-04-29 14:13:30,247 DEBUG
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Read ZNode /hbase/master
> got 10.1.3.150:60000
> ...
> 2010-04-29 22:06:01,637 INFO org.apache.zookeeper.ZooKeeper: Session:
> 0x284958aa550014 closed
> 2010-04-29 22:06:02,012 DEBUG
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Closed connection with
> ZooKeeper
> Clearly the reinitializeZooKeeper() method was called for some reason.
> Unfortunately:
> hbase(main):005:0> zk 'get /hbase/rs/1272540873161'
> 10.1.3.102:60020
> cZxid = 0x5f0000002b
> ctime = Thu Apr 29 13:34:33 CEST 2010
> mZxid = 0x5f0000003e
> mtime = Thu Apr 29 13:34:33 CEST 2010
> pZxid = 0x5f0000002b
> cversion = 0
> dataVersion = 1
> aclVersion = 0
> ephemeralOwner = 0x284958aa550001
> dataLength = 16
> numChildren = 0
> The owner of the zookeeper node is the first session which was never closed.
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