ubuntu-12.04 – Zookeeper合奏未出现

我试图在 documentation之后配置3个节点的集合.所有这些节点都在Linux Ubuntu上.
 在所有三个节点配置文件看起来像这样：

在$ZOOKEEPER_HOME / conf下的zoo.cfg

tickTime=2000
dataDir=/home/zkuser/zookeeper_data
clientPort=2181
initLimit=5
synclimit=2
server.1=ip.of.zk1:2888:3888
server.2=ip.of.zk2:2888:3888
server.3=ip.of.zk3:2888:3888

我还在/ home / zkuser / zookeeper_data /目录下放置了各自的“myid”文件.
这个myid文件包含1在节点(ip.of.zk1)上,依此类推.

当我使用bin / zkServer.sh启动zk服务器时,在控制台上没有显示任何异常.
但是,当我打开bin目录下的zookeeper.out文件时,我看到以下错误.

2014-11-04 00:23:49,120 [myid:3] - WARN  [WorkerSender[myid=3]:QuorumCnxManager@382] - Cannot open channel to 1 at election address /ip.of.zk1:3888
java.net.noroutetoHostException: No route to host
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:327)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:193)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180)
    at java.net.socksSocketImpl.connect(SocksSocketImpl.java:385)
    at java.net.socket.connect(Socket.java:546)
    at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:368)
    at org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:341)
    at org.apache.zookeeper.server.quorum.FastleaderElection$Messenger$WorkerSender.process(FastleaderElection.java:449)
    at org.apache.zookeeper.server.quorum.FastleaderElection$Messenger$WorkerSender.run(FastleaderElection.java:430)
    at java.lang.Thread.run(Thread.java:701)
2014-11-04 00:23:49,123 [myid:3] - WARN  [WorkerSender[myid=3]:QuorumCnxManager@382] - Cannot open channel to 2 at election address /ip.of.zk2:3888
java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:327)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:193)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180)
    at java.net.socksSocketImpl.connect(SocksSocketImpl.java:385)
    at java.net.socket.connect(Socket.java:546)
    at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:368)
    at org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:341)
    at org.apache.zookeeper.server.quorum.FastleaderElection$Messenger$WorkerSender.process(FastleaderElection.java:449)
    at org.apache.zookeeper.server.quorum.FastleaderElection$Messenger$WorkerSender.run(FastleaderElection.java:430)
    at java.lang.Thread.run(Thread.java:701)

注意：我已经在每台机器上使用iptables打开了相应的端口.
例如 ：
Chain INPUT(政策接受)

target     prot opt source               destination         
ACCEPT     all  --  IP.of.ZK1       anywhere            
ACCEPT     all  --  IP.of.ZK2       anywhere            
ACCEPT     all  --  IP.of.ZK3       anywhere            

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

谁能告诉我我失踪了什么？

问候,
JE

解决方法

确保这件事：

>您已在所有3台服务器上启动Zookeeper服务器
>通过运行echo ruok |,所有服务器都以非错误模式运行netcat ip.of.zk2 2181.如果没问题,服务器应该回复imok(仅供参考,这是一个list of all supported 4-letter commands)
> / home / zkuser / zookeeper_data / myid分别包含每个服务器的值1/2/3
>您可以从第一台服务器ping其他2台服务器

如果有兴趣,我创建了一个vagrant ansible脚本来创建一个3节点的虚拟Zookeeper集群,请参阅https://github.com/mkrcah/virtual-zookeeper-cluster