Hi All,

I tried to set up a multi-server cluster in two machines, following the
instructions on the website.
I set up 5 servers (named 1~5) in two machines. The configuration is as
follows.

tickTime=2000
initLimit=10
syncLimit=5
clientPort=2181
dataDir=/var/zookeeper/1

server.1=testing.machine1:2900:3900
server.2=testing.machine1:2901:3901
server.3=testing.machine1:2902:3902
server.4=testing.machine2:2903:3903
server.5=testing.machine2:2904:3904
When I set up the cluster, there was a problem in all the five servers.
2012-10-05 17:51:43,555 [myid:1] - WARN
[QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@368] - Cannot
open channel to 2 at election address testing.machine1/192.168.0.101:3901
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:384)
    at java.net.Socket.connect(Socket.java:546)
    at
org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
    at
org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
    at
org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
    at
org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
2012-10-05 17:51:43,556 [myid:1] - WARN
[QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@368] - Cannot
open channel to 3 at election address testing.machine1/192.168.0.101:3902
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:384)
    at java.net.Socket.connect(Socket.java:546)
    at
org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
    at
org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
    at
org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
    at
org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
2012-10-05 17:51:43,557 [myid:1] - INFO
[QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@190] - Have
smaller server identifier, so dropping the connection: (4, 1)
2012-10-05 17:51:43,558 [myid:1] - INFO
[QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] -
Notification time out: 60000
I tried in zookeeper-3.3.6 and zookeeper-3.4.4, and got the same problem.
Could anyone help me?

Thanks
Frank

Were those the early error messages, or after you had started all
servers and waited a bit? I'd suggest you start them all, then tail
one of the logs and see what's going on once everyone is started.
Ensure that you have the "myid" files correct - that each server has a
distinct server id.

Not sure it will help but try this? (specify count as 5)
https://github.com/phunt/zkconf

Patrick

On Fri, Oct 5, 2012 at 3:03 AM, Frank Zheng <[EMAIL PROTECTED]> wrote:
> Hi All,
>
> I tried to set up a multi-server cluster in two machines, following the
> instructions on the website.
> I set up 5 servers (named 1~5) in two machines. The configuration is as
> follows.
>
> tickTime=2000
> initLimit=10
> syncLimit=5
> clientPort=2181
> dataDir=/var/zookeeper/1
>
> server.1=testing.machine1:2900:3900
> server.2=testing.machine1:2901:3901
> server.3=testing.machine1:2902:3902
> server.4=testing.machine2:2903:3903
> server.5=testing.machine2:2904:3904
>
>
> When I set up the cluster, there was a problem in all the five servers.
>
>
> 2012-10-05 17:51:43,555 [myid:1] - WARN
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@368] - Cannot
> open channel to 2 at election address testing.machine1/192.168.0.101:3901
> 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:384)
>     at java.net.Socket.connect(Socket.java:546)
>     at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
>     at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
>     at
> org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
>     at
> org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
> 2012-10-05 17:51:43,556 [myid:1] - WARN
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@368] - Cannot
> open channel to 3 at election address testing.machine1/192.168.0.101:3902
> 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:384)
>     at java.net.Socket.connect(Socket.java:546)
>     at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
>     at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
>     at
> org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
>     at
> org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
> 2012-10-05 17:51:43,557 [myid:1] - INFO
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@190] - Have
> smaller server identifier, so dropping the connection: (4, 1)
> 2012-10-05 17:51:43,558 [myid:1] - INFO
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] -
> Notification time out: 60000
>
>
> I tried in zookeeper-3.3.6 and zookeeper-3.4.4, and got the same problem.
> Could anyone help me?
>
> Thanks
> Frank

I rechecked myid files. There was no problem.
And the error messages displayed after I had started all servers.

In one machine, the error messages are as follows.

2012-10-08 18:06:29,261 [myid:2] - WARN
[QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:QuorumCnxManager@368] - Cannot
open channel to 3 at election address testing.machine1/192.168.0.101:3902
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:384)
    at java.net.Socket.connect(Socket.java:546)
    at
org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
    at
org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
    at
org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
    at
org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
2012-10-08 18:06:29,262 [myid:2] - INFO
[QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:QuorumCnxManager@190] - Have
smaller server identifier, so dropping the connection: (4, 2)
2012-10-08 18:06:29,262 [myid:2] - INFO
[QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:FastLeaderElection@774] -
Notification time out: 60000

In the other machine, the error messages are like this.

2012-10-08 10:08:37,076 [myid:5] - WARN
[WorkerSender[myid=5]:QuorumCnxManager@368] - Cannot open channel to 3 at
election address testing.machine1/192.168.0.101:3902
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:384)
    at java.net.Socket.connect(Socket.java:546)
    at
org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
    at
org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:327)
    at
org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:393)
    at
org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:365)
    at java.lang.Thread.run(Thread.java:679)
2012-10-08 10:08:37,079 [myid:5] - INFO
[WorkerReceiver[myid=5]:FastLeaderElection@542] - Notification: 5
(n.leader), 0x0 (n.zxid), 0x1 (n.round), LOOKING (n.state), 4 (n.sid), 0x0
(n.peerEPoch), LOOKING (my state)
2012-10-08 10:08:37,079 [myid:5] - INFO
[WorkerReceiver[myid=5]:FastLeaderElection@542] - Notification: 5
(n.leader), 0x0 (n.zxid), 0x1 (n.round), LOOKING (n.state), 5 (n.sid), 0x0
(n.peerEPoch), LOOKING (my state)
These two kinds of error messages keep showing again and again.
When I tried to set up a client and connect on server, an error came up.

[root@testing zookeeper-3.4.4]# bin/zkCli.sh -server testing.machine2:2184
Connecting to testing.machine2:2184
2012-10-08 10:10:38,734 [myid:] - INFO  [main:Environment@100] - Client
environment:zookeeper.version=3.4.4-1386507, built on 09/17/2012 08:33 GMT
2012-10-08 10:10:38,737 [myid:] - INFO  [main:Environment@100] - Client
environment:host.name=testing.machine2
2012-10-08 10:10:38,737 [myid:] - INFO  [main:Environment@100] - Client
environment:java.version=1.6.0_22
2012-10-08 10:10:38,737 [myid:] - INFO  [main:Environment@100] - Client
environment:java.vendor=Sun Microsystems Inc.
2012-10-08 10:10:38,738 [myid:] - INFO  [main:Environment@100] - Client
environment:java.home=/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre
2012-10-08 10:10:38,738 [myid:] - INFO  [main:Environment@100] - Client
environment:java.class.path=/usr/zookeeper-3.4.4/bin/../build/classes:/usr/zookeeper-3.4.4/bin/../build/lib/*.jar:/usr/zookeeper-3.4.4/bin/../lib/slf4j-log4j12-1.6.1.jar:/usr/zookeeper-3.4.4/bin/../lib/slf4j-api-1.6.1.jar:/usr/zookeeper-3.4.4/bin/../lib/netty-3.2.2.Final.jar:/usr/zookeeper-3.4.4/bin/../lib/log4j-1.2.15.jar:/usr/zookeeper-3.4.4/bin/../lib/jline-0.9.94.jar:/usr/zookeeper-3.4.4/bin/../zookeeper-3.4.4.jar:/usr/zookeeper-3.4.4/bin/../src/java/lib/*.jar:/usr/zookeeper-3.4.4/bin/../conf:
2012-10-08 10:10:38,738 [myid:] - INFO  [main:Environment@100] - Client
environment:java.library.path=/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/lib/amd64/server:/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/lib/amd64:/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/../lib/amd64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2012-10-08 10:10:38,738 [myid:] - INFO  [main:Environment@100] - Client
environment:java.io.tmpdir=/tmp
2012-10-08 10:10:38,739 [myid:] - INFO  [main:Environment@100] - Client
environment:java.compiler=<NA>
2012-10-08 10:10:38,739 [myid:] - INFO  [main:Environment@100] - Client
environment:os.name=Linux
2012-10-08 10:10:38,739 [myid:] - INFO  [main:Environment@100] - Client
environment:os.arch=amd64
2012-10-08 10:10:38,739 [myid:] - INFO  [main:Environment@100] - Client
environment:os.version=2.6.32-220.el6.x86_64
2012-10-08 10:10:38,740 [myid:] - INFO  [main:Environment@100] - Client
environment:user.name=root
2012-10-08 10:10:38,740 [myid:] - INFO  [main:Environment@100] - Client
environment:user.home=/root
2012-10-08 10:10:38,740 [myid:] - INFO  [main:Environment@100] - Client
environment:user.dir=/usr/zookeeper-3.4.4
2012-10-08 10:10:38,741 [myid:] - INFO  [main:ZooKeeper@433] - Initiating
client connection, connectString=testing.machine2:2184 sessionTimeout=30000
watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@657d5d2a
Welcome to ZooKeeper!
2012-

I find the problem.
The IP Address of my computer changed !

On Mon, Oct 8, 2012 at 10:11 AM, Frank Zheng <[EMAIL PROTECTED]>wrote:

> I rechecked myid files. There was no problem.
> And the error messages displayed after I had started all servers.
>
> In one machine, the error messages are as follows.
>
> 2012-10-08 18:06:29,261 [myid:2] - WARN
> [QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:QuorumCnxManager@368] - Cannot
> open channel to 3 at election address testing.machine1/192.168.0.101:3902
>
> 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:384)
>     at java.net.Socket.connect(Socket.java:546)
>     at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
>     at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
>     at
> org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
>     at
> org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
> 2012-10-08 18:06:29,262 [myid:2] - INFO
> [QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:QuorumCnxManager@190] - Have
> smaller server identifier, so dropping the connection: (4, 2)
> 2012-10-08 18:06:29,262 [myid:2] - INFO
> [QuorumPeer[myid=2]/0:0:0:0:0:0:0:0:2182:FastLeaderElection@774] -
> Notification time out: 60000
>
> In the other machine, the error messages are like this.
>
> 2012-10-08 10:08:37,076 [myid:5] - WARN
> [WorkerSender[myid=5]:QuorumCnxManager@368] - Cannot open channel to 3 at
> election address testing.machine1/192.168.0.101:3902
>
> 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:384)
>     at java.net.Socket.connect(Socket.java:546)
>     at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
>     at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:327)
>     at
> org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:393)
>     at
> org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:365)
>     at java.lang.Thread.run(Thread.java:679)
> 2012-10-08 10:08:37,079 [myid:5] - INFO
> [WorkerReceiver[myid=5]:FastLeaderElection@542] - Notification: 5
> (n.leader), 0x0 (n.zxid), 0x1 (n.round), LOOKING (n.state), 4 (n.sid), 0x0
> (n.peerEPoch), LOOKING (my state)
> 2012-10-08 10:08:37,079 [myid:5] - INFO
> [WorkerReceiver[myid=5]:FastLeaderElection@542] - Notification: 5
> (n.leader), 0x0 (n.zxid), 0x1 (n.round), LOOKING (n.state), 5 (n.sid), 0x0
> (n.peerEPoch), LOOKING (my state)
>
>
> These two kinds of error messages keep showing again and again.
> When I tried to set up a client and connect on server, an error came up.
>
> [root@testing zookeeper-3.4.4]# bin/zkCli.sh -server testing.machine2:2184
> Connecting to testing.machine2:2184
> 2012-10-08 10:10:38,734 [myid:] - INFO  [main:Environment@100] - Client
> environment:zookeeper.version=3.4.4-1386507, built on 09/17/2012 08:33 GMT
> 2012-10-08 10:10:38,737 [myid:] - INFO  [main:Environment@100] - Client
> environment:host.name=testing.machine2
> 2012-10-08 10:10:38,737 [myid:] - INFO  [main:Environment@100] - Client
> environment:java.version=1.6.0_22
Sincerely,
Zheng Yu
Mobile:  (852) 60670059
Email:    [EMAIL PROTECTED]

Hi Frank, Without seeing logs is hard to say, but given the messages you posted, I wonder if it is an ipv6 related issue.

-Flavio

On Oct 5, 2012, at 12:03 PM, Frank Zheng wrote:

> Hi All,
>
> I tried to set up a multi-server cluster in two machines, following the
> instructions on the website.
> I set up 5 servers (named 1~5) in two machines. The configuration is as
> follows.
>
> tickTime=2000
> initLimit=10
> syncLimit=5
> clientPort=2181
> dataDir=/var/zookeeper/1
>
> server.1=testing.machine1:2900:3900
> server.2=testing.machine1:2901:3901
> server.3=testing.machine1:2902:3902
> server.4=testing.machine2:2903:3903
> server.5=testing.machine2:2904:3904
>
>
> When I set up the cluster, there was a problem in all the five servers.
>
>
> 2012-10-05 17:51:43,555 [myid:1] - WARN
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@368] - Cannot
> open channel to 2 at election address testing.machine1/192.168.0.101:3901
> 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:384)
>    at java.net.Socket.connect(Socket.java:546)
>    at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
>    at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
>    at
> org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
>    at
> org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
> 2012-10-05 17:51:43,556 [myid:1] - WARN
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@368] - Cannot
> open channel to 3 at election address testing.machine1/192.168.0.101:3902
> 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:384)
>    at java.net.Socket.connect(Socket.java:546)
>    at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
>    at
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
>    at
> org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
>    at
> org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
> 2012-10-05 17:51:43,557 [myid:1] - INFO
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@190] - Have
> smaller server identifier, so dropping the connection: (4, 1)
> 2012-10-05 17:51:43,558 [myid:1] - INFO
> [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] -
> Notification time out: 60000
>
>
> I tried in zookeeper-3.3.6 and zookeeper-3.4.4, and got the same problem.
> Could anyone help me?
>
> Thanks
> Frank

Hi,

The log file is called "currentEpoch", which contains just a number 0. All
five servers has the same log file.
Some days ago, I succeed in setting up this multi server cluster.
But from last week, this problem keeps showing up.
On Sat, Oct 6, 2012 at 6:50 PM, Flavio Junqueira <[EMAIL PROTECTED]> wrote:

> Hi Frank, Without seeing logs is hard to say, but given the messages you
> posted, I wonder if it is an ipv6 related issue.
>
> -Flavio
>
> On Oct 5, 2012, at 12:03 PM, Frank Zheng wrote:
>
> > Hi All,
> >
> > I tried to set up a multi-server cluster in two machines, following the
> > instructions on the website.
> > I set up 5 servers (named 1~5) in two machines. The configuration is as
> > follows.
> >
> > tickTime=2000
> > initLimit=10
> > syncLimit=5
> > clientPort=2181
> > dataDir=/var/zookeeper/1
> >
> > server.1=testing.machine1:2900:3900
> > server.2=testing.machine1:2901:3901
> > server.3=testing.machine1:2902:3902
> > server.4=testing.machine2:2903:3903
> > server.5=testing.machine2:2904:3904
> >
> >
> > When I set up the cluster, there was a problem in all the five servers.
> >
> >
> > 2012-10-05 17:51:43,555 [myid:1] - WARN
> > [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@368] - Cannot
> > open channel to 2 at election address testing.machine1/
> 192.168.0.101:3901
> > 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:384)
> >    at java.net.Socket.connect(Socket.java:546)
> >    at
> >
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
> >    at
> >
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
> >    at
> >
> org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
> >    at
> > org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
> > 2012-10-05 17:51:43,556 [myid:1] - WARN
> > [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@368] - Cannot
> > open channel to 3 at election address testing.machine1/
> 192.168.0.101:3902
> > 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:384)
> >    at java.net.Socket.connect(Socket.java:546)
> >    at
> >
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
> >    at
> >
> org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:388)
> >    at
> >
> org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:765)
> >    at
> > org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:716)
> > 2012-10-05 17:51:43,557 [myid:1] - INFO
> > [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@190] - Have
> > smaller server identifier, so dropping the connection: (4, 1)
> > 2012-10-05 17:51:43,558 [myid:1] - INFO
> > [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] -
> > Notification time out: 60000
> >
> >
> > I tried in zookeeper-3.3.6 and zookeeper-3.4.4, and got the same problem.
> > Could anyone help me?
> >
> > Thanks
> > Frank
>
>
--
Sincerely,
Zheng Yu
Mobile:  (852) 60670059
Email:    [EMAIL PROTECTED]