Ensure ids/nodes are correct in zoo.cfg and zookeeper is running on each. Also any changes to ports being open? If it’s aws, beck security groups. Node 1 cannot talk to the other two nodes.
> On Aug 16, 2018, at 6:02 PM, Raghav <raghavas...@gmail.com> wrote: > > Hi > > Our 3 node Zookeeper ensemble got powered down, and upon powering up the > zookeeper could get quorum and kept throwing these errors. As a result our > Kafka cluster was unusable. What is the best way to revive ZK cluster in > such situations ? Please suggest. > > > 2018-08-17_00:59:18.87009 2018-08-17 00:59:18,869 [myid:1] - WARN > [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@584] - Cannot > open channel to 2 at election address /1.1.1.143:3888 > 2018-08-17_00:59:18.87011 java.net.ConnectException: Connection refused > 2018-08-17_00:59:18.87011 at > java.net.PlainSocketImpl.socketConnect(Native Method) > 2018-08-17_00:59:18.87011 at > java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345) > 2018-08-17_00:59:18.87012 at > java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) > 2018-08-17_00:59:18.87012 at > java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) > 2018-08-17_00:59:18.87013 at > java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) > 2018-08-17_00:59:18.87013 at java.net.Socket.connect(Socket.java:589) > 2018-08-17_00:59:18.87013 at > org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:558) > 2018-08-17_00:59:18.87014 at > org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:610) > 2018-08-17_00:59:18.87014 at > org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:838) > 2018-08-17_00:59:18.87014 at > org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:957) > 2018-08-17_00:59:18.87034 2018-08-17 00:59:18,870 [myid:1] - INFO > [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumPeer$QuorumServer@184] - > Resolved hostname: 1.1.1.143 to address: /1.1.1.143 > 2018-08-17_00:59:18.87095 2018-08-17 00:59:18,870 [myid:1] - WARN > [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumCnxManager@584] - Cannot > open channel to 3 at election address /1.1.1.144:3888 > 2018-08-17_00:59:18.87097 java.net.ConnectException: Connection refused > 2018-08-17_00:59:18.87097 at > java.net.PlainSocketImpl.socketConnect(Native Method) > 2018-08-17_00:59:18.87097 at > java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345) > 2018-08-17_00:59:18.87098 at > java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) > 2018-08-17_00:59:18.87098 at > java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) > 2018-08-17_00:59:18.87098 at > java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) > 2018-08-17_00:59:18.87098 at java.net.Socket.connect(Socket.java:589) > 2018-08-17_00:59:18.87099 at > org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:558) > 2018-08-17_00:59:18.87099 at > org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:610) > 2018-08-17_00:59:18.87099 at > org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:838) > 2018-08-17_00:59:18.87099 at > org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:957) > > Thanks. > > R
