以ceph4，ceph5作为新节点为例，加入新集群。

参考安装ZooKeeper安装zookeeper软件包。

配置新节点的myid，ceph4 myid（4），ceph5 myid（5）

ceph4：

       
            mkdir /opt/apache-zookeeper-3.6.3-bin-bcm/zkData
echo 4 > /opt/apache-zookeeper-3.6.3-bin-bcm/zkData/myid

ceph5：

       
            mkdir /opt/apache-zookeeper-3.6.3-bin-bcm/zkData
echo 5 > /opt/apache-zookeeper-3.6.3-bin-bcm/zkData/myid

配置新节点的配置文件/opt/apache-zookeeper-3.6.3-bin-bcm/conf/zoo.cfg

       
        
          
          
            # The number of milliseconds of each tick
tickTime=1000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=2
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
dataDir=/opt/apache-zookeeper-3.6.3-bin-bcm/zkData
# the port at which the clients will connect
clientPort=2182
# the maximum number of client connections.
# increase this if you need to handle more clients
maxClientCnxns=333
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
autopurge.purgeInterval=3

## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true
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
4lw.commands.whitelist=*

           

         

       
      

启动新节点zookeeper服务

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

查询新节点的zookeeper服务状态

       
            [root@ceph4 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@ceph5 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/bin-bcm/../conf/zoo.cfg
Client port found: 2182. Client address: localhost. Client SSL: false.
Mode: follower

新节点加入集群