HBase standalone failed to connect (fail to create table)

I am trying to deploy Hbase in standalone mode following this article: http://hbase.apache.org/book.html#quickstart. The version is 0.92.1-cdh4.1.2 But I am getting these errors when try to create a table: Error message: ``` 13/04/01 14:07:10 ERROR zookeeper.RecoverableZooKeeper: ZooKeeper exists failed after 3 retries 13/04/01 14:07:10 WARN zookeeper.ZKUtil: hconnection Unable to set watcher on znode /hbase/master org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/master at org.apache.zookeeper.KeeperException.create(KeeperException.java:99) at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1021) at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:154) at org.apache.hadoop.hbase.zookeeper.ZKUtil.watchAndCheckExists(ZKUtil.java:226) at org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.start(ZooKeeperNodeTracker.java:82) at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.setupZookeeperTrackers(HConnectionManager.java:580) at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.<init>(HConnectionManager.java:569) ``` Output log: ``` 13/04/01 14:06:39 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=localhost:2181 sessionTimeout=180000 watcher=hconnection 13/04/01 14:06:39 INFO zookeeper.RecoverableZooKeeper: The identifier of this process is 10231@localhost 13/04/01 14:06:39 INFO zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration) 13/04/01 14:06:39 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068) 13/04/01 14:06:39 WARN zookeeper.RecoverableZooKeeper: Possibly transient ZooKeeper exception: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid ``` My configurations: - Added JAVA_HOME in hbase-env.sh hbase_site.xml ``` <name>hbase.rootdir</name> <value>file:///home/hadoop/data</value> ``` ``` <name>hbase.zookeeper.property.dataDir</name> <value>file:///home/hadoop/zookeeper</value> ``` I have tried to modify /etc/hosts, which looks likes this (oracle is the hostname): ``` 127.0.0.1 localhost oracle ``` or ``` [server ip] localhost oracle ``` But these do not work for me. My exact codes are: ``` [usr@oracle bin]$ ./start-hbase.sh starting master, logging to /home/hadoop/hbase-0.94.6/bin/../logs/hbase-usr-master-oracle.out [usr@oracle bin]$ hbase shell 13/04/01 14:57:55 WARN conf.Configuration: hadoop.native.lib is deprecated. Instead, use io.native.lib.available HBase Shell; enter 'help<RETURN>' for list of supported commands. Type "exit<RETURN>" to leave the HBase Shell Version 0.92.1-cdh4.1.2, rUnknown, Thu Nov 1 18:02:07 PDT 2012 hbase(main):001:0> create 'test','cf' ``` Thanks in advance!