Error contacting service. It is probably not running.

比眉伴天荒 2023-07-01 08:57 8阅读 0赞

先启动其他俩个在启动这个主的

[root@CentOSA ~]#   cd  /opt/
    [root@CentOSA opt]# ls
    modules  rh  soft
    [root@CentOSA opt]# cd  modules/
    [root@CentOSA modules]# ls
    hadoop-2.7.2  jdk1.8.0_144  zookeeper-3.4.5
    [root@CentOSA modules]# cd  ..
    [root@CentOSA opt]# cd   soft/
    [root@CentOSA soft]# ls
    [root@CentOSA soft]# cd  /opt/modules/zookeeper-3.4.5
    You have new mail in /var/spool/mail/root
    [root@CentOSA zookeeper-3.4.5]#  bin/zkServer.sh restart
    JMX enabled by default
    Using config: /opt/modules/zookeeper-3.4.5/bin/../conf/zoo.cfg
    JMX enabled by default
    Using config: /opt/modules/zookeeper-3.4.5/bin/../conf/zoo.cfg
    Stopping zookeeper ... no zookeeper to stop (could not find file /opt/modules/zookeeper-3.4.5/zkData/zookeeper_server.pid)
    JMX enabled by default
    Using config: /opt/modules/zookeeper-3.4.5/bin/../conf/zoo.cfg
    Starting zookeeper ... STARTED
    [root@CentOSA zookeeper-3.4.5]#  bin/zkServer.sh status
    JMX enabled by default
    Using config: /opt/modules/zookeeper-3.4.5/bin/../conf/zoo.cfg
    Mode: follower
    [root@CentOSA zookeeper-3.4.5]#

[root@Hadoop zookeeper-3.4.5]# bin/zkServer.sh status
    JMX enabled by default
    Using config: /opt/modules/zookeeper-3.4.5/bin/../conf/zoo.cfg
    Error contacting service. It is probably not running.
    [root@Hadoop zookeeper-3.4.5]# ls
    bin        CHANGES.txt  contrib     docs             ivy.xml  LICENSE.txt  README_packaging.txt  recipes  zkData               zookeeper-3.4.5.jar.asc  zookeeper-3.4.5.jar.sha1
    build.xml  conf         dist-maven  ivysettings.xml  lib      NOTICE.txt   README.txt            src      zookeeper-3.4.5.jar  zookeeper-3.4.5.jar.md5  zookeeper.out
    [root@Hadoop zookeeper-3.4.5]# cat  zookeeper.out
    2020-01-20 20:46:11,709 [myid:] - INFO  [main:QuorumPeerConfig@101] - Reading configuration from: /opt/modules/zookeeper-3.4.5/bin/../conf/zoo.cfg
    2020-01-20 20:46:11,713 [myid:] - INFO  [main:QuorumPeerConfig@334] - Defaulting to majority quorums
    2020-01-20 20:46:11,716 [myid:1] - INFO  [main:DatadirCleanupManager@78] - autopurge.snapRetainCount set to 3
    2020-01-20 20:46:11,719 [myid:1] - INFO  [main:DatadirCleanupManager@79] - autopurge.purgeInterval set to 0
    2020-01-20 20:46:11,720 [myid:1] - INFO  [main:DatadirCleanupManager@101] - Purge task is not scheduled.
    2020-01-20 20:46:11,732 [myid:1] - INFO  [main:QuorumPeerMain@127] - Starting quorum peer
    2020-01-20 20:46:11,744 [myid:1] - INFO  [main:NIOServerCnxnFactory@94] - binding to port 0.0.0.0/0.0.0.0:2181
    2020-01-20 20:46:11,760 [myid:1] - INFO  [main:QuorumPeer@913] - tickTime set to 2000
    2020-01-20 20:46:11,760 [myid:1] - INFO  [main:QuorumPeer@933] - minSessionTimeout set to -1
    2020-01-20 20:46:11,760 [myid:1] - INFO  [main:QuorumPeer@944] - maxSessionTimeout set to -1
    2020-01-20 20:46:11,760 [myid:1] - INFO  [main:QuorumPeer@959] - initLimit set to 10
    2020-01-20 20:46:11,769 [myid:1] - INFO  [main:FileSnap@83] - Reading snapshot /opt/modules/zookeeper-3.4.5/zkData/version-2/snapshot.70000085c
    2020-01-20 20:46:11,886 [myid:1] - INFO  [Thread-1:QuorumCnxManager$Listener@486] - My election bind port: 0.0.0.0/0.0.0.0:3888
    2020-01-20 20:46:11,897 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:QuorumPeer@670] - LOOKING
    2020-01-20 20:46:11,898 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@740] - New election. My id =  1, proposed zxid=0x8000001a9
    2020-01-20 20:46:11,899 [myid:1] - INFO  [WorkerReceiver[myid=1]:FastLeaderElection@542] - Notification: 1 (n.leader), 0x8000001a9 (n.zxid), 0x1 (n.round), LOOKING (n.state), 1 (n.sid), 0x8 (n.peerEPoch), LOOKING (my state)
    2020-01-20 20:46:11,902 [myid:1] - WARN  [WorkerSender[myid=1]:QuorumCnxManager@368] - Cannot open channel to 2 at election address CentOSA/192.168.184.128:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
    	at org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:327)
    	at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:393)
    	at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:365)
    	at java.lang.Thread.run(Thread.java:748)
    2020-01-20 20:46:11,905 [myid:1] - WARN  [WorkerSender[myid=1]:QuorumCnxManager@368] - Cannot open channel to 3 at election address CentOSB/192.168.184.130:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:354)
    	at org.apache.zookeeper.server.quorum.QuorumCnxManager.toSend(QuorumCnxManager.java:327)
    	at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.process(FastLeaderElection.java:393)
    	at org.apache.zookeeper.server.quorum.FastLeaderElection$Messenger$WorkerSender.run(FastLeaderElection.java:365)
    	at java.lang.Thread.run(Thread.java:748)
    2020-01-20 20:46:12,106 [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 CentOSA/192.168.184.128:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:12,107 [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 CentOSB/192.168.184.130:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:12,107 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] - Notification time out: 400
    2020-01-20 20:46:12,509 [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 CentOSA/192.168.184.128:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:12,510 [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 CentOSB/192.168.184.130:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:12,510 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] - Notification time out: 800
    2020-01-20 20:46:13,312 [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 CentOSA/192.168.184.128:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:13,313 [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 CentOSB/192.168.184.130:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:13,313 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] - Notification time out: 1600
    2020-01-20 20:46:14,918 [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 CentOSA/192.168.184.128:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:14,919 [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 CentOSB/192.168.184.130:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:14,919 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] - Notification time out: 3200
    2020-01-20 20:46:16,599 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197] - Accepted socket connection from /127.0.0.1:34342
    2020-01-20 20:46:16,602 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@821] - Processing srvr command from /127.0.0.1:34342
    2020-01-20 20:46:16,606 [myid:1] - INFO  [Thread-2:NIOServerCnxn@1001] - Closed socket connection for client /127.0.0.1:34342 (no session established for client)
    2020-01-20 20:46:18,120 [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 CentOSA/192.168.184.128:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:18,120 [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 CentOSB/192.168.184.130:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:18,121 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] - Notification time out: 6400
    2020-01-20 20:46:24,522 [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 CentOSA/192.168.184.128:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:24,523 [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 CentOSB/192.168.184.130:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:24,523 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] - Notification time out: 12800
    2020-01-20 20:46:37,324 [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 CentOSA/192.168.184.128:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:37,325 [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 CentOSB/192.168.184.130:3888
    java.net.ConnectException: Connection refused (Connection refused)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	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)
    2020-01-20 20:46:37,325 [myid:1] - INFO  [QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@774] - Notification time out: 25600
    [root@Hadoop zookeeper-3.4.5]# pwd
    /opt/modules/zookeeper-3.4.5
    [root@Hadoop zookeeper-3.4.5]# bin/zkServer.sh restart
    JMX enabled by default
    Using config: /opt/modules/zookeeper-3.4.5/bin/../conf/zoo.cfg
    JMX enabled by default
    Using config: /opt/modules/zookeeper-3.4.5/bin/../conf/zoo.cfg
    Stopping zookeeper ... STOPPED
    JMX enabled by default
    Using config: /opt/modules/zookeeper-3.4.5/bin/../conf/zoo.cfg
    Starting zookeeper ... STARTED
    [root@Hadoop zookeeper-3.4.5]# bin/zkServer.sh status
    JMX enabled by default
    Using config: /opt/modules/zookeeper-3.4.5/bin/../conf/zoo.cfg
    Mode: follower
    [root@Hadoop zookeeper-3.4.5]#