Zookeeper-3.7.1 Cluster Construction

一、Zookeeper-3.7.1 Cluster Construction

1 配置 zoo.cfg

vim /opt/zookeeper-371/conf/zoo.cfg

## 心跳检查的时间 2秒
tickTime=2000
## 初始化时 连接到服务器端的间隔次数，总时间10*2=20秒
initLimit=10
## ZK Leader 和follower 之间通讯的次数，总时间5*2=10秒
syncLimit=5
## 存储内存中数据快照的位置，如果不设置参数，更新事务日志将被存储到默认位置。
dataDir=/opt/zookeeper-371/zkData
## ZK 服务器端的监听端口  
clientPort=2181
## ZK 端口号，默认8080
admin.serverPort=9091

## 添加集群信息
server.1=192.168.121.11:2888:3888
server.2=192.168.121.12:2888:3888
server.3=192.168.121.13:2888:3888

## 分发节点
scp /opt/zookeeper-371/conf/zoo.cfg root@192.168.121.12:/opt/zookeeper-371/conf/zoo.cfg
scp /opt/zookeeper-371/conf/zoo.cfg root@192.168.121.13:/opt/zookeeper-371/conf/zoo.cfg

三台机器配置信息都一致的！

2 集群信息

## server.A=B:C:D
## A:节点在集群中的唯一ID，需要与dataDir/myid文件中的内容保持一致，取值范围为1~255
## B：节点的服务器IP地址
## C：集群中Follower节点与Leader 节点之间通信的端口
## D：当集群中的Follower节点宕机或出现故障时，集群进行重新选举Leader时所使用的端口

3 数字与配置文件中的 节点ID 数据一致

## 192.168.121.11
echo 1 > /opt/zookeeper-371/zkData/myid

## 192.168.121.12
echo 2 > /opt/zookeeper-371/zkData/myid

## 192.168.121.13
echo 3 > /opt/zookeeper-371/zkData/myid

4 启动

## 启动
/opt/zookeeper-371/bin/zkServer.sh start
## 状态
/opt/zookeeper-371/bin/zkServer.sh status

## 测试可以使用前台启动
/opt/zookeeper-371/bin/zkServer.sh start-foreground

5 查看状态信息

查看代码

 ##
[root@master01 zkData]# /opt/zookeeper-371/bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper-371/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@master01 zkData]# /opt/zookeeper-371/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper-371/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: follower
##
[root@localhost conf]# /opt/zookeeper-371/bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper-371/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@localhost conf]# /opt/zookeeper-371/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper-371/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: follower
##
[root@localhost conf]# /opt/zookeeper-371/bin/zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper-371/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@localhost conf]# /opt/zookeeper-371/bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper-371/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: leader

6 查看每台节点网络连接情况

[root@master01 ~]# netstat -natp | egrep '(2888|3888)'
tcp6       0      0 192.168.121.11:3888     :::*                    LISTEN      1627/java          
tcp6       0      0 192.168.121.11:3888     192.168.121.13:49952    ESTABLISHED 1627/java          
tcp6       0      0 192.168.121.11:3888     192.168.121.12:52270    ESTABLISHED 1627/java          
tcp6       0      0 192.168.121.11:56810    192.168.121.13:2888     ESTABLISHED 1627/java 

7 创建节点

## 进入客户端
/opt/zookeeper-371/bin/zkCli.sh
## 创建节点
create /iyuyixyz hello
## 查看节点信息
ls -s /iyuyixyz

## stat结构。好比Unix/Linux文件系统中文件的stat结构
stat /iyuyixyz

## 删除一个节点
delete /iyuyixyz

## 看下节点数据是否同步

 

X、One Step Success

 

Y、Error message

 

Z、Related Links

openEuler XXX Cluster Initialization Configuration：https://www.cnblogs.com/huaxiayuyi/p/16899214.html

Installing Zookeeper-3.7.1 openEuler：https://www.cnblogs.com/huaxiayuyi/p/16897875.html