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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: While starting 3-nodes cluster hbase: WARN org.apache.zookeeper.ClientCnxn: Session 0x0 for server null
Date Tue, 23 Apr 2013 20:58:01 GMT
Hi John,

Are you ZK servers working fine also? It seems HBase is not able to
connect to them. Can you connect to ZK console and see the status
(like ls /)?

JM

2013/4/23 John Foxinhead <john.foxinhead@gmail.com>:
> Hi, I have a pseudo-distribuited version of Hbase running on a
> pseudo-distribuited version of Hadoop. This version works well, I tried
> also some java code to manage table, with jar running on the same host of
> the pseudo-distribuited cluster.
> Now I upgraded to a fully-distribuited version of hadoop and hbase. I have
> no problems with hadoop because i'm able to get-put files on the HDFS fully
> distribuited, so my problem is surely with hbase configuration, or
> something similar. Also SSH is working: i can login with ssh from the
> master node to all the slaves node. I also don't use map-reduce with
> Hadoop: i start hadoop with start-dfs on the namenode, and this command
> starts also the 2 datanodes on my cluster. My 3 nodes are debian virtual
> machines running on Virtualbox and they can ping each other.
> When, after starting HDFS and make sure that it works trying some put/get,
> i try to start hbase using the command bin/start-hbase.sh from $HBASE_HOME
> on the master, it seems that zookeeper don't start. I tried googling
> everywhere but i didn't find anything working.
> This is my log file error in master logs' directory:
>
> mar 23 apr 2013, 16.09.47, CEST Starting master on debian01
> core file size          (blocks, -c) 0
> data seg size           (kbytes, -d) unlimited
> scheduling priority             (-e) 0
> file size               (blocks, -f) unlimited
> pending signals                 (-i) 16382
> max locked memory       (kbytes, -l) 64
> max memory size         (kbytes, -m) unlimited
> open files                      (-n) 32768
> pipe size            (512 bytes, -p) 8
> POSIX message queues     (bytes, -q) 819200
> real-time priority              (-r) 0
> stack size              (kbytes, -s) 8192
> cpu time               (seconds, -t) unlimited
> max user processes              (-u) 32000
> virtual memory          (kbytes, -v) unlimited
> file locks                      (-x) unlimited
> 2013-04-23 16:09:47,691 INFO org.apache.hadoop.hbase.util.VersionInfo:
> HBase 0.94.5
> 2013-04-23 16:09:47,692 INFO org.apache.hadoop.hbase.util.VersionInfo:
> Subversion https://svn.apache.org/repos/asf/hbase/branches/0.94 -r 1443843
> 2013-04-23 16:09:47,692 INFO org.apache.hadoop.hbase.util.VersionInfo:
> Compiled by jenkins on Fri Feb  8 05:51:25 UTC 2013
> 2013-04-23 16:09:47,978 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012
> 17:52 GMT
> 2013-04-23 16:09:47,978 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:host.name=localhost
> 2013-04-23 16:09:47,978 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:java.version=1.7.0_17
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:java.vendor=Oracle Corporation
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:java.home=/usr/lib/jvm/java-7-oracle/jre
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server
> environment:java.class.path=/home/debian/hbase-0.94.5/bin/../conf:/usr/lib/jvm/java-7-oracle/lib/tools.jar:/home/debian/hbase-0.94.5/bin/..:/home/debian/hbase-0.94.5/bin/../hbase-0.94.5.jar:/home/debian/hbase-0.94.5/bin/../hbase-0.94.5-tests.jar:/home/debian/hbase-0.94.5/bin/../lib/activation-1.1.jar:/home/debian/hbase-0.94.5/bin/../lib/asm-3.1.jar:/home/debian/hbase-0.94.5/bin/../lib/avro-1.5.3.jar:/home/debian/hbase-0.94.5/bin/../lib/avro-ipc-1.5.3.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-beanutils-1.7.0.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-beanutils-core-1.8.0.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-cli-1.2.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-codec-1.4.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-collections-3.2.1.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-configuration-1.6.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-digester-1.8.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-el-1.0.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-httpclient-3.1.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-io-2.1.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-lang-2.5.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-logging-1.1.1.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-math-2.1.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-net-1.4.1.jar:/home/debian/hbase-0.94.5/bin/../lib/core-3.1.1.jar:/home/debian/hbase-0.94.5/bin/../lib/guava-11.0.2.jar:/home/debian/hbase-0.94.5/bin/../lib/hadoop-core-1.0.4.jar:/home/debian/hbase-0.94.5/bin/../lib/high-scale-lib-1.1.1.jar:/home/debian/hbase-0.94.5/bin/../lib/httpclient-4.1.2.jar:/home/debian/hbase-0.94.5/bin/../lib/httpcore-4.1.3.jar:/home/debian/hbase-0.94.5/bin/../lib/jackson-core-asl-1.8.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jackson-jaxrs-1.8.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jackson-mapper-asl-1.8.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jackson-xc-1.8.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jamon-runtime-2.3.1.jar:/home/debian/hbase-0.94.5/bin/../lib/jasper-compiler-5.5.23.jar:/home/debian/hbase-0.94.5/bin/../lib/jasper-runtime-5.5.23.jar:/home/debian/hbase-0.94.5/bin/../lib/jaxb-api-2.1.jar:/home/debian/hbase-0.94.5/bin/../lib/jaxb-impl-2.2.3-1.jar:/home/debian/hbase-0.94.5/bin/../lib/jersey-core-1.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jersey-json-1.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jersey-server-1.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jettison-1.1.jar:/home/debian/hbase-0.94.5/bin/../lib/jetty-6.1.26.jar:/home/debian/hbase-0.94.5/bin/../lib/jetty-util-6.1.26.jar:/home/debian/hbase-0.94.5/bin/../lib/jruby-complete-1.6.5.jar:/home/debian/hbase-0.94.5/bin/../lib/jsp-2.1-6.1.14.jar:/home/debian/hbase-0.94.5/bin/../lib/jsp-api-2.1-6.1.14.jar:/home/debian/hbase-0.94.5/bin/../lib/jsr305-1.3.9.jar:/home/debian/hbase-0.94.5/bin/../lib/junit-4.10-HBASE-1.jar:/home/debian/hbase-0.94.5/bin/../lib/libthrift-0.8.0.jar:/home/debian/hbase-0.94.5/bin/../lib/log4j-1.2.16.jar:/home/debian/hbase-0.94.5/bin/../lib/metrics-core-2.1.2.jar:/home/debian/hbase-0.94.5/bin/../lib/netty-3.2.4.Final.jar:/home/debian/hbase-0.94.5/bin/../lib/protobuf-java-2.4.0a.jar:/home/debian/hbase-0.94.5/bin/../lib/servlet-api-2.5-6.1.14.jar:/home/debian/hbase-0.94.5/bin/../lib/slf4j-api-1.4.3.jar:/home/debian/hbase-0.94.5/bin/../lib/slf4j-log4j12-1.4.3.jar:/home/debian/hbase-0.94.5/bin/../lib/snappy-java-1.0.3.2.jar:/home/debian/hbase-0.94.5/bin/../lib/stax-api-1.0.1.jar:/home/debian/hbase-0.94.5/bin/../lib/velocity-1.7.jar:/home/debian/hbase-0.94.5/bin/../lib/xmlenc-0.52.jar:/home/debian/hbase-0.94.5/bin/../lib/zookeeper-3.4.5.jar:/home/debian/hbase-0.94.5/lib:
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server
> environment:java.library.path=/home/debian/hbase-0.94.5/bin/../lib/native/Linux-amd64-64
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:java.io.tmpdir=/tmp
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:java.compiler=<NA>
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:os.name=Linux
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:os.arch=amd64
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:os.version=2.6.32-5-amd64
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:user.name=debian
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:user.home=/home/debian
> 2013-04-23 16:09:47,979 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Server environment:user.dir=/home/debian/hbase-0.94.5
> 2013-04-23 16:09:48,046 INFO org.apache.zookeeper.server.ZooKeeperServer:
> Created server with tickTime 2000 minSessionTimeout 4000 maxSessionTimeout
> 40000 datadir
> /home/debian/hbase-0.94.5/zookeeper-data/zookeeper_0/version-2 snapdir
> /home/debian/hbase-0.94.5/zookeeper-data/zookeeper_0/version-2
> 2013-04-23 16:09:48,135 INFO
> org.apache.zookeeper.server.NIOServerCnxnFactory: binding to port
> 0.0.0.0/0.0.0.0:2181
> 2013-04-23 16:09:48,142 INFO
> org.apache.zookeeper.server.persistence.FileTxnSnapLog: Snapshotting: 0x0
> to /home/debian/hbase-0.94.5/zookeeper-data/zookeeper_0/version-2/snapshot.0
> 2013-04-23 16:09:48,237 INFO
> org.apache.zookeeper.server.NIOServerCnxnFactory: Accepted socket
> connection from /127.0.0.1:44820
> 2013-04-23 16:09:48,244 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Processing stat command from /127.0.0.1:44820
> 2013-04-23 16:09:48,246 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Stat command output
> 2013-04-23 16:09:48,247 INFO
> org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster: Started MiniZK
> Cluster and connect 1 ZK server on client port: 2181
> 2013-04-23 16:09:48,253 INFO org.apache.zookeeper.server.NIOServerCnxn:
> Closed socket connection for client /127.0.0.1:44820 (no session
> established for client)
> 2013-04-23 16:09:48,369 DEBUG org.apache.hadoop.hbase.master.HMaster: Set
> serverside HConnection retries=100
> 2013-04-23 16:09:48,871 INFO org.apache.hadoop.ipc.HBaseServer: Starting
> Thread-3
> 2013-04-23 16:09:48,871 INFO org.apache.hadoop.ipc.HBaseServer: Starting
> Thread-3
> 2013-04-23 16:09:48,872 INFO org.apache.hadoop.ipc.HBaseServer: Starting
> Thread-3
> 2013-04-23 16:09:48,872 INFO org.apache.hadoop.ipc.HBaseServer: Starting
> Thread-3
> 2013-04-23 16:09:48,872 INFO org.apache.hadoop.ipc.HBaseServer: Starting
> Thread-3
> 2013-04-23 16:09:48,872 INFO org.apache.hadoop.ipc.HBaseServer: Starting
> Thread-3
> 2013-04-23 16:09:48,873 INFO org.apache.hadoop.ipc.HBaseServer: Starting
> Thread-3
> 2013-04-23 16:09:48,873 INFO org.apache.hadoop.ipc.HBaseServer: Starting
> Thread-3
> 2013-04-23 16:09:48,873 INFO org.apache.hadoop.ipc.HBaseServer: Starting
> Thread-3
> 2013-04-23 16:09:48,879 INFO org.apache.hadoop.ipc.HBaseServer: Starting
> IPC Server listener on 60781
> 2013-04-23 16:09:48,894 INFO org.apache.hadoop.hbase.ipc.HBaseRpcMetrics:
> Initializing RPC Metrics with hostName=HMasterCommandLine$LocalHMaster,
> port=60781
> 2013-04-23 16:10:49,288 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT
> 2013-04-23 16:10:49,288 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:host.name=localhost
> 2013-04-23 16:10:49,288 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.version=1.7.0_17
> 2013-04-23 16:10:49,288 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.vendor=Oracle Corporation
> 2013-04-23 16:10:49,288 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.home=/usr/lib/jvm/java-7-oracle/jre
> 2013-04-23 16:10:49,288 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.class.path=/home/debian/hbase-0.94.5/bin/../conf:/usr/lib/jvm/java-7-oracle/lib/tools.jar:/home/debian/hbase-0.94.5/bin/..:/home/debian/hbase-0.94.5/bin/../hbase-0.94.5.jar:/home/debian/hbase-0.94.5/bin/../hbase-0.94.5-tests.jar:/home/debian/hbase-0.94.5/bin/../lib/activation-1.1.jar:/home/debian/hbase-0.94.5/bin/../lib/asm-3.1.jar:/home/debian/hbase-0.94.5/bin/../lib/avro-1.5.3.jar:/home/debian/hbase-0.94.5/bin/../lib/avro-ipc-1.5.3.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-beanutils-1.7.0.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-beanutils-core-1.8.0.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-cli-1.2.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-codec-1.4.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-collections-3.2.1.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-configuration-1.6.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-digester-1.8.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-el-1.0.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-httpclient-3.1.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-io-2.1.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-lang-2.5.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-logging-1.1.1.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-math-2.1.jar:/home/debian/hbase-0.94.5/bin/../lib/commons-net-1.4.1.jar:/home/debian/hbase-0.94.5/bin/../lib/core-3.1.1.jar:/home/debian/hbase-0.94.5/bin/../lib/guava-11.0.2.jar:/home/debian/hbase-0.94.5/bin/../lib/hadoop-core-1.0.4.jar:/home/debian/hbase-0.94.5/bin/../lib/high-scale-lib-1.1.1.jar:/home/debian/hbase-0.94.5/bin/../lib/httpclient-4.1.2.jar:/home/debian/hbase-0.94.5/bin/../lib/httpcore-4.1.3.jar:/home/debian/hbase-0.94.5/bin/../lib/jackson-core-asl-1.8.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jackson-jaxrs-1.8.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jackson-mapper-asl-1.8.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jackson-xc-1.8.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jamon-runtime-2.3.1.jar:/home/debian/hbase-0.94.5/bin/../lib/jasper-compiler-5.5.23.jar:/home/debian/hbase-0.94.5/bin/../lib/jasper-runtime-5.5.23.jar:/home/debian/hbase-0.94.5/bin/../lib/jaxb-api-2.1.jar:/home/debian/hbase-0.94.5/bin/../lib/jaxb-impl-2.2.3-1.jar:/home/debian/hbase-0.94.5/bin/../lib/jersey-core-1.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jersey-json-1.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jersey-server-1.8.jar:/home/debian/hbase-0.94.5/bin/../lib/jettison-1.1.jar:/home/debian/hbase-0.94.5/bin/../lib/jetty-6.1.26.jar:/home/debian/hbase-0.94.5/bin/../lib/jetty-util-6.1.26.jar:/home/debian/hbase-0.94.5/bin/../lib/jruby-complete-1.6.5.jar:/home/debian/hbase-0.94.5/bin/../lib/jsp-2.1-6.1.14.jar:/home/debian/hbase-0.94.5/bin/../lib/jsp-api-2.1-6.1.14.jar:/home/debian/hbase-0.94.5/bin/../lib/jsr305-1.3.9.jar:/home/debian/hbase-0.94.5/bin/../lib/junit-4.10-HBASE-1.jar:/home/debian/hbase-0.94.5/bin/../lib/libthrift-0.8.0.jar:/home/debian/hbase-0.94.5/bin/../lib/log4j-1.2.16.jar:/home/debian/hbase-0.94.5/bin/../lib/metrics-core-2.1.2.jar:/home/debian/hbase-0.94.5/bin/../lib/netty-3.2.4.Final.jar:/home/debian/hbase-0.94.5/bin/../lib/protobuf-java-2.4.0a.jar:/home/debian/hbase-0.94.5/bin/../lib/servlet-api-2.5-6.1.14.jar:/home/debian/hbase-0.94.5/bin/../lib/slf4j-api-1.4.3.jar:/home/debian/hbase-0.94.5/bin/../lib/slf4j-log4j12-1.4.3.jar:/home/debian/hbase-0.94.5/bin/../lib/snappy-java-1.0.3.2.jar:/home/debian/hbase-0.94.5/bin/../lib/stax-api-1.0.1.jar:/home/debian/hbase-0.94.5/bin/../lib/velocity-1.7.jar:/home/debian/hbase-0.94.5/bin/../lib/xmlenc-0.52.jar:/home/debian/hbase-0.94.5/bin/../lib/zookeeper-3.4.5.jar:/home/debian/hbase-0.94.5/lib:
> 2013-04-23 16:10:49,288 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.library.path=/home/debian/hbase-0.94.5/bin/../lib/native/Linux-amd64-64
> 2013-04-23 16:10:49,292 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.io.tmpdir=/tmp
> 2013-04-23 16:10:49,292 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:java.compiler=<NA>
> 2013-04-23 16:10:49,292 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:os.name=Linux
> 2013-04-23 16:10:49,292 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:os.arch=amd64
> 2013-04-23 16:10:49,292 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:os.version=2.6.32-5-amd64
> 2013-04-23 16:10:49,292 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:user.name=debian
> 2013-04-23 16:10:49,292 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:user.home=/home/debian
> 2013-04-23 16:10:49,292 INFO org.apache.zookeeper.ZooKeeper: Client
> environment:user.dir=/home/debian/hbase-0.94.5
> 2013-04-23 16:10:49,293 INFO org.apache.zookeeper.ZooKeeper: Initiating
> client connection, connectString=zookeeper2:2181,zookeeper1:2181
> sessionTimeout=180000 watcher=master:60781
> 2013-04-23 16:10:49,329 INFO
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> this process is 3382@debian01
> 2013-04-23 16:10:49,336 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:49,337 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:49,462 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:49,463 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:49,463 WARN
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: Possibly transient
> ZooKeeper exception:
> org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for /hbase
> 2013-04-23 16:10:49,464 INFO org.apache.hadoop.hbase.util.RetryCounter:
> Sleeping 2000ms before retry #1...
> 2013-04-23 16:10:50,564 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:50,566 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:50,668 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:50,669 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:51,771 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:51,773 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:51,874 WARN
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: Possibly transient
> ZooKeeper exception:
> org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for /hbase
> 2013-04-23 16:10:51,875 INFO org.apache.hadoop.hbase.util.RetryCounter:
> Sleeping 4000ms before retry #2...
> 2013-04-23 16:10:51,875 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:51,876 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:52,978 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:52,980 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:53,081 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:53,083 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:54,198 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:54,199 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:54,299 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:54,301 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:55,403 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:55,404 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:55,505 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:55,506 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:56,608 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:56,613 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:56,714 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:56,716 WARN
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: Possibly transient
> ZooKeeper exception:
> org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for /hbase
> 2013-04-23 16:10:56,716 INFO org.apache.hadoop.hbase.util.RetryCounter:
> Sleeping 8000ms before retry #3...
> 2013-04-23 16:10:56,717 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:57,818 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:57,820 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:57,922 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:57,923 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:59,027 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:59,029 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:10:59,130 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:10:59,132 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:11:00,234 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:11:00,236 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:11:00,338 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:11:00,340 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:11:01,442 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:11:01,442 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:11:01,543 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:11:01,543 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:11:02,645 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:11:02,647 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:11:02,748 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:11:02,750 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:11:03,852 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:11:03,854 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:11:03,955 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:11:03,957 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:11:05,059 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server jobtracker/192.168.1.111:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:11:05,060 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
> 2013-04-23 16:11:05,162 WARN
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: Possibly transient
> ZooKeeper exception:
> org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for /hbase
> 2013-04-23 16:11:05,163 ERROR
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: ZooKeeper exists
> failed after 3 retries
> 2013-04-23 16:11:05,163 ERROR
> org.apache.hadoop.hbase.master.HMasterCommandLine: Failed to start master
> java.lang.RuntimeException: Failed construction of Master: class
> org.apache.hadoop.hbase.master.HMasterCommandLine$LocalHMasterKeeperErrorCode
> = ConnectionLoss for /hbase
>     at
> org.apache.hadoop.hbase.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:134)
>     at
> org.apache.hadoop.hbase.LocalHBaseCluster.addMaster(LocalHBaseCluster.java:197)
>     at
> org.apache.hadoop.hbase.LocalHBaseCluster.<init>(LocalHBaseCluster.java:147)
>     at
> org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:146)
>     at
> org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:104)
>     at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
>     at
> org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:76)
>     at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:1927)
> Caused by: org.apache.hadoop.hbase.ZooKeeperConnectionException:
> master:60781 Unexpected KeeperException creating base node
>     at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.createBaseZNodes(ZooKeeperWatcher.java:171)
>     at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeperWatcher.java:155)
>     at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:307)
>     at
> org.apache.hadoop.hbase.master.HMasterCommandLine$LocalHMaster.<init>(HMasterCommandLine.java:221)
>     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>     at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
>     at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>     at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
>     at
> org.apache.hadoop.hbase.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:131)
>     ... 7 more
> Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for /hbase
>     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:1041)
>     at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1069)
>     at
> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:199)
>     at
> org.apache.hadoop.hbase.zookeeper.ZKUtil.createAndFailSilent(ZKUtil.java:1091)
>     at
> org.apache.hadoop.hbase.zookeeper.ZKUtil.createAndFailSilent(ZKUtil.java:1081)
>     at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.createBaseZNodes(ZooKeeperWatcher.java:162)
>     ... 15 more
> 2013-04-23 16:11:05,168 INFO org.apache.zookeeper.ClientCnxn: Opening
> socket connection to server datanode1/192.168.1.112:2181. Will not attempt
> to authenticate using SASL (unknown error)
> 2013-04-23 16:11:05,170 WARN org.apache.zookeeper.ClientCnxn: Session 0x0
> for server null, unexpected error, closing socket connection and attempting
> reconnect
> java.net.ConnectException: Connessione rifiutata
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
>     at
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
>
>
>
>
> Also theese are my configuration files:
>
>
> hbase-site.xml:
>
> <configuration>
>   <property>
>     <name>dfs.support.append</name>
>     <value>true</value>
>   </property>
>   <property>
>     <name>hbase.rootdir</name>
>     <value>hdfs://namenode:9000/hbase</value>
>   </property>
>   <property>
>     <name>hbase.cluster.distribuited</name>
>     <value>true</value>
>   </property>
>   <property>
>     <name>hbase.zookeeper.quorum</name>
>     <value>zookeeper1,zookeeper2</value>
>   </property>
>   <property>
>     <name>hbase.zookeeper.property.dataDir</name>
>     <value>/home/debian/hbase-0.94.5/zookeeper-data</value>
>   </property>
>   <property>
>     <name>hbase.zookeeper.property.maxClientCnxns</name>
>     <value>1000</value>
>   </property>
> </configuration>
>
>
> in hbase-env.sh i modified only classpath and java_home and i uncommented
> "export HBASE_MANAGES_ZK=true"
>
>
> file "regionservers":
> regionserver1
> regionserver2
>
>
> file "/etc/hosts":
> 127.0.0.1    localhost
> 127.0.0.1    debian01
> #  HADOOP
> 192.168.1.111    jobtracker
> 192.168.1.112    datanode1
> 192.168.1.121    namenode
> 192.168.1.122    datanode3
> 192.168.1.131    datanode2
> 192.168.1.132    tasktracker1
> #  HBASE
> 192.168.1.121    master
> 192.168.1.111    zookeeper1
> 192.168.1.112    zookeeper2
> 192.168.1.111    regionserver1
> 192.168.1.112    regionserver2
>
>
> (i wrote jobtracker, but i use it in slaves file on namenode, so it is a
> datanode, not a jobtracker)
> I made this configuration with hosts file so that i can simply change the
> roles of the nodes on my cluster changing the hosts file without make lots
> of change in hbase/hadoop configuration, because sometimes i use hbase on a
> cluster on my host, but sometimes i work with 2 friends of mine, so i have
> to change the roles sometimes. I want to start master on the same node of
> namenode, and start on hadoop's datanode both zookeeper and regionserver. I
> dedicated 1024 MB of ram for each virtual machine and i did'n modify
> heapsizes, so that each virtual machine can use all the ram, that, is very
> low to run hadoop and hbase, but this is my situation, i can't do better.
>
> What's the problem?

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