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From Rahul <rahu...@incture.com>
Subject Re: Zookeeper error: Cannot open channel to X at election address
Date Mon, 22 Jun 2015 04:10:13 GMT
Hi Raúl,

  I tried the command you suggested and I am not getting any response. I tried the same command
for the port 2181 and that is bound to zookeeper, this was the result for port 2181

tcp6       0      0 :::2181                 :::*                  
 LISTEN      0          63007       6778/java

  Does this means zookeeper is not bound to the port 3888? The only place where I have mentioned
port 3888 is in the config file at server.1=x.x.x.x:2888:3888. Should I make other configuration
changes? 

-- 
Rahul J
Technical Lead
Incture

On June 22, 2015 at 5:56:56 AM, Raúl Gutiérrez Segalés (rgs@itevenworks.net) wrote:

HI Rahul,  

are you sure all servers are actually binding port 3888 on the right  
interface (or on 0.0.0.0) and not on the loopback (127.0.0.1)? What does  
netstat -apentu | grep -i listen | grep 3888 say?  


-rgs  

On 19 June 2015 at 22:22, Rahul <rahul.j@incture.com> wrote:  

> I have installed zookeeper in 3 different aws servers. The following is  
> the configuration in all the servers  
>  
> tickTime=2000  
> initLimit=10  
> syncLimit=5  
> dataDir=/var/zookeeper  
> clientPort=2181  
> server.1=x.x.x.x:2888:3888  
> server.2=x.x.x.x:2888:3888  
> server.3=x.x.x.x:2888:3888  
> All the three instance have a myid file at var/zookeeper with appropriate  
> id in it. All the three servers have all ports open from the aws console.  
> But when I run the zookeeper server, I get the following error in all the  
> instances.  
>  
>  
> All the three instance have a myid file at var/zookeeper with appropriate  
> id in it. All the three servers have all ports open from the aws console.  
> But when I run the zookeeper server, I get the following error in all the  
> instances.  
>  
> 2015-06-19 12:09:22,989 [myid:1] - WARN  
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@382]  
> - Cannot open channel to 2 at election address /x.x.x.x:3888  
> java.net.ConnectException: Connection refused  
> at java.net.PlainSocketImpl.socketConnect(Native Method)  
> at  
> java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)  
> at  
> java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) 

> at  
> java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)  
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)  
> at java.net.Socket.connect(Socket.java:579)  
> at  
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:368)
 
> at  
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:402)
 
> at  
> org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:840)
 
> at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:762)  
> 2015-06-19 12:09:23,170 [myid:1] - WARN  
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@382]  
> - Cannot open channel to 3 at election address /x.x.x.x:3888  
> java.net.ConnectException: Connection refused  
> at java.net.PlainSocketImpl.socketConnect(Native Method)  
> at  
> java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)  
> at  
> java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) 

> at  
> java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)  
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)  
> at java.net.Socket.connect(Socket.java:579)  
> at  
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:368)
 
> at  
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:402)
 
> at  
> org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:840)
 
> at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:762)  
> 2015-06-19 12:09:23,170 [myid:1] - INFO  
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] -  
> Notification time out: 25600  
> —  
> Rahul  

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