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Modifying the Configuration of the Original Cluster

  1. Modify the cluster configuration information in /opt/apache-zookeeper-3.6.3-bin-bcm/conf/zoo.cfg of the original cluster.
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    server.80=ceph1:2889:3889;2182
server.90=ceph2:2889:3889;2182
server.100=ceph3:2889:3889;2182
server.4=ceph4:2889:3889;2182
server.5=ceph5:2889:3889;2182
  2. Restart the ZooKeeper server on follower nodes in ascending order based on myid and then the leader node.

    ceph1 (follower):

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    /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh restart

    ceph2 (follower):

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    /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh restart

    ceph3 (leader):

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    /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh restart
  3. Run the /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status command on each node to check the original cluster status.
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    [root@ceph3 bin]# /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/apache-zookeeper-3.6.3-bin-bcm/bin/../conf/zoo.cfg
Client port found: 2182. Client address: localhost. Client SSL: false.
Mode: leader
[root@ceph1 bin]# /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/apache-zookeeper-3.6.3-bin-bcm/bin/../conf/zoo.cfg
Client port found: 2182. Client address: localhost. Client SSL: false.
Mode: follower
[root@ceph2 bin]# /opt/apache-zookeeper-3.6.3-bin-bcm/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/apache-zookeeper-3.6.3-bin-bcm/bin/../conf/zoo.cfg
Client port found: 2182. Client address: localhost. Client SSL: false.
Mode: follower