I eventually figured it out: my zkClient was running on vm/guest os with zookeeper on host and vm/host port mapping was broken...
On Fri, Feb 27, 2015 at 1:17 PM, Jiangjie Qin <j...@linkedin.com.invalid> wrote: > Do you mean you were not able to connect to zookeeper after retry? > We see this error in the log from time to time, but the zkClient will > retry and usually it will succeed. Can you verify if you were finally be > able to connect or not? > > Jiangjie (Becket) Qin > > On 2/27/15, 12:53 AM, "Victor L" <vlyamt...@gmail.com> wrote: > > >I seem to unable to connect single instance of Kafka server to single > >instance of local zookeeper server on local host (Ubuntu 14.04LTS/ open > >jdk > >1.7.0_75): > > > >[2015-02-27 08:10:11,467] INFO Initiating client connection, > >connectString=localhost:2181 sessionTimeout=6000 > >watcher=org.I0Itec.zkclient.ZkClient@5513425f > >(org.apache.zookeeper.ZooKeeper) > >[2015-02-27 08:10:11,502] INFO Opening socket connection to server > >localhost/127.0.0.1:2181 (org.apache.zookeeper.ClientCnxn) > >[2015-02-27 08:10:11,506] WARN Session 0x0 for server null, unexpected > >error, closing socket connection and attempting reconnect > >(org.apache.zookeeper.ClientCnxn) > >java.net.ConnectException: Connection refused > > at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) > > at > >sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739) > > at > >org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1146) > > > >One thread describes ipv6 as possible cause for this problem: > >https://gist.github.com/akiatoji/f1a5ca319325788cf287 > >so, i disabled ipv6, but no luck. It must be the common problem, Is there > >some FAQ i've missed? How can i troubleshoot it? > >