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Zookeeper, mail # user - Cannot Open Channel at Election Address


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Frank Zheng 2012-10-05, 10:03
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Patrick Hunt 2012-10-06, 14:25
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Frank Zheng 2012-10-08, 02:11
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Frank Zheng 2012-10-08, 03:03
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Flavio Junqueira 2012-10-06, 10:50
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Re: Cannot Open Channel at Election Address
Frank Zheng 2012-10-08, 01:59
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]