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From Raghav <raghavas...@gmail.com>
Subject Please help: Zookeeper not coming up after power down
Date Fri, 17 Aug 2018 01:02:59 GMT
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

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