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" > > > > > > > _________________________________________________________________ > Hotmail: Trusted email with powerful SPAM protection. > https://signup.live.com/signup.aspx?id=60969 >
