Hello Everyone,
I am using Zookeeper 3.5.1-alpha and I see a problem when I am using a 2 node
setup.
Node 1 Zookeeper logs:
2020-01-11 11:29:52,141 [myid:2147483653] - INFO
[QuorumPeerListener:QuorumCnxManager$Listener@631] - My election bind port:
0.0.0.0/0.0.0.0:61898
2020-01-11 11:29:52,149 [myid:2147483653] - ERROR
[WorkerSender[myid=2147483653]:NIOServerCnxnFactory$1@92] - Thread
Thread[WorkerSender[myid=2147483653],5,main] died
java.lang.NullPointerException
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(Unknown
Source)
at java.util.concurrent.LinkedBlockingQueue.poll(Unknown Source)
at
org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:462)
at java.lang.Thread.run(Unknown Source)
2020-01-11 11:29:52,161 [myid:2147483653] - INFO
[QuorumPeer[myid=2147483653](plain=/0:0:0:0:0:0:0:0:61896)(secure=disabled):QuorumPeer@986]
- LOOKING
Node 2 Zookeeper logs:
2020-01-11 11:29:51,852 [myid:2147483652] - WARN
[WorkerSender[myid=2147483652]:QuorumCnxManager@459] - Cannot open channel to
2147483653 at election address /128.0.0.5:61898
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at
org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:444)
at
org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:485)
at
org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:421)
at
org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:486)
at
org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:465)
at java.lang.Thread.run(Unknown Source)
Zookeeper server on the nodes never recover from this state and clients are
unable to connect to the server. Any hint on what the problem is based on the
back trace on Node 1 logs? Is this a Zookeeper server code issue or a setup
issue?
Thanks,
Pramod
