Often this is related to the port(s) being blocked by a firewall. Perhaps
you could check this (2888/3888) in both directions? Telnet can help:
https://help.maximumasp.com/KB/a445/connectivity-testing-with-ping-telnet-tracert-and-pathping-.aspx

Patrick

2010/5/7 chen peng <chenpeng0...@hotmail.com>

>
> Hi all
>   I have a question: after installation of the zookeeper according to
> the doc for zookeeper(
>
> http://hadoop.apache.org/zookeeper/docs/current/zookeeperAdmin.html#sc_systemReq),
> abnormalities emerge as follows:
> ------------------------------------------------------
> JMX enabled by default
> Using
> config: /home/baeeq/hadoop-0.20.2/zookeeper-3.2.2/bin/../conf/zoo.cfg
> Starting zookeeper ...
> STARTED
> 2010-05-08 13:37:28,273 - INFO  [main:quorumpeercon...@80] - Reading
> configuration
> from: /home/baeeq/hadoop-0.20.2/zookeeper-3.2.2/bin/../conf/zoo.cfg
> 2010-05-08 13:37:28,284 - INFO  [main:quorumpeercon...@232] - Defaulting
> to majority quorums
> 2010-05-08 13:37:28,299 - INFO  [main:quorumpeerm...@118] - Starting
> quorum peer
> 2010-05-08 13:37:28,331 - INFO  [Thread-1:quorumcnxmanager$liste...@409]
> - My election bind port: 3888
> 2010-05-08 13:37:28,342 - INFO
> [QuorumPeer:/0:0:0:0:0:0:0:0:2181:quorump...@514] - LOOKING
> 2010-05-08 13:37:28,345 - INFO
> [QuorumPeer:/0:0:0:0:0:0:0:0:2181:fastleaderelect...@579] - New
> election: -1
> 2010-05-08 13:37:28,351 - WARN  [WorkerSender
> Thread:quorumcnxmana...@336] - Cannot open channel to 2 at election
> address /192.168.1.3:3888
> java.net.ConnectException: Connection refused
>        at sun.nio.ch.Net.connect(Native Method)
>        at
> sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:507)
>        at java.nio.channels.SocketChannel.open(SocketChannel.java:146)
>        at
>
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:323)
>        at
>
> org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:302)
>        at org.apache.zookeeper.server.quorum.FastLeaderElection
> $Messenger$WorkerSender.process(FastLeaderElection.java:323)
>        at org.apache.zookeeper.server.quorum.FastLeaderElection
> $Messenger$WorkerSender.run(FastLeaderElection.java:296)
>        at java.lang.Thread.run(Thread.java:619)
> 2010-05-08 13:37:28,352 - INFO
> [QuorumPeer:/0:0:0:0:0:0:0:0:2181:fastleaderelect...@618] -
> Notification: 1, -1, 1, 1, LOOKING, LOOKING, 1
> 2010-05-08 13:37:28,353 - INFO
> [QuorumPeer:/0:0:0:0:0:0:0:0:2181:fastleaderelect...@642] - Adding vote
> 2010-05-08 13:37:28,557 - WARN
> [QuorumPeer:/0:0:0:0:0:0:0:0:2181:quorumcnxmana...@336] - Cannot open
> channel to 2 at election address /192.168.1.3:3888
> java.net.ConnectException: Connection refused
>        at sun.nio.ch.Net.connect(Native Method)
>        at
> sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:507)
>        at java.nio.channels.SocketChannel.open(SocketChannel.java:146)
>        at
>
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:323)
>        at
>
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:356)
>        at
>
> org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:603)
>        at
> org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:515)
> 2010-05-08 13:37:28,559 - INFO
> [QuorumPeer:/0:0:0:0:0:0:0:0:2181:fastleaderelect...@612] - Notification
> time out: 400
> 2010-05-08 13:37:28,961 - WARN
> [QuorumPeer:/0:0:0:0:0:0:0:0:2181:quorumcnxmana...@336] - Cannot open
> channel to 2 at election address /192.168.1.3:3888
> java.net.ConnectException: Connection refused
>        at sun.nio.ch.Net.connect(Native Method)
>        at
> sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:507)
>        at java.nio.channels.SocketChannel.open(SocketChannel.java:146)
>        at
>
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:323).....
> ------------------------------------------------------
> fileinfo for zoo.cfg is listed below:
>        tickTime=2000
>        initLimit=10
>        syncLimit=5
>        dataDir=/home/baeeq/hadoop-0.20.2/zookeeper-data
>        clientPort=2181
>        server.1=192.168.1.2:2888:3888
>        server.2=192.168.1.3:2888:3888
>
> PS: It works well on the single computer after deleting
> "server.1=192.168.1.2:2888:3888 server.2=192.168.1.3:2888:3888"
>
>
>
>
>
>
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