美文网首页
Linux Centos7 环境搭建Docker部署Zookee

Linux Centos7 环境搭建Docker部署Zookee

作者: 朝槿木兮 | 来源:发表于2020-01-06 16:27 被阅读0次

    Zookeeper完全分布式集群服务

    准备好3台服务器:

    • [x]A-> centos-helios:192.168.19.1
    • [x]B-> centos-hestia:192.168.19.2
    • [x]C-> centos-hebe:192.168.19.3

    ⚠️ [注意事项]：
    1.一定要确定3台服务器之间可以相互通信
    2.如果是采用的阿里云等服务器的话,一定要配置主机名与IP映射，否则会连接拒绝等问题

    配置Zookeeper安装目录

    • 在3台宿主机配置zookeeper安装目录：/docker/zookeeper

    • 并且在文件夹创建 data 和logs 目录：mkdir -p /docker/zookeeper/data && mkdir -p /docker/zookeeper/logs

    mkdir -p /docker/zookeeper/data
mkdir -p /docker/zookeeper/logs
    • 授权文件目录：chmod -R 777 /docker/zookeeper/

    安装和部署Zookeeper

    拉取zookeeper镜像：docker pull zookeeper:3.5.6

    [root@centos-helios ~]# docker pull zookeeper:3.5.6
3.5.6: Pulling from library/zookeeper
8ec398bc0356: Pull complete 
8e866b095956: Pull complete 
e18af1784b1f: Pull complete 
9cec9f51936c: Pull complete 
475dcbe0e2e9: Pull complete 
222ebb7346b3: Pull complete 
f0552f5b3f6c: Pull complete 
cdfcdbc43b13: Pull complete 
Digest: sha256:6b6b5f7fb6a47d2b311df5af1718af5a425a679dbb844d77913fa68d1a8bf0fd
Status: Downloaded newer image for zookeeper:3.5.6
docker.io/library/zookeeper:3.5.6
[root@centos-helios ~]#

    ⚠️ [注意事项]：
    1.由于Zookeeper是一个常规的基础服务组件，我这直接拉取Docker hub镜像，有兴趣的可以自行构建镜像部署
    2.这里只对centos-helios有举例，另外2台需要执行相同操作，以下不再赘述

    临时安装Zookeeper服务：zookeeper-tmp-server

    docker run -itd -p 2181:2181 --restart always --name=zookeeper-tmp-server  --privileged=true \
-v /docker/develop/zookeeper/data:/data \
-v /docker/develop/zookeeper/datalog:/datalog \
-v /docker/develop/zookeeper/logs:/logs \
-e "ZOO_STANDALONE_ENABLED=true" \
-e "TZ=Asia/Shanghai" \
-e "ZOO_4LW_COMMANDS_WHITELIST=*" \
-e "ZOO_AUTOPURGE_SNAPRETAINCOUNT=5" \
-e "ZOO_AUTOPURGE_PURGEINTERVAL=24" \
-e "ZOO_MAX_CLIENT_CNXNS=64" \
-e "ZOO_TICK_TIME=2000" \
-e "ZOO_INIT_LIMIT=100" \
-e "ZOO_SYNC_LIMIT=5" \
zookeeper:3.5.6

    复制zookeeper-tmp-server的conf到/docker/zookeeper：
    1.查看容器列表：docker ps --format "table {{.ID}}\t{{.Names}}\t{{.Ports}}"

    [root@centos-helios zookeeper]# docker ps --format "table {{.ID}}\t{{.Names}}\t{{.Ports}}"
CONTAINER ID        NAMES                  PORTS
71ad055739b6        zookeeper-tmp-server   2888/tcp, 3888/tcp, 0.0.0.0:2181->2181/tcp, 8080/tcp
[root@centos-helios zookeeper]#

    2.执行Docker cp 命令：docker cp Zookeeper容器ID:/conf /docker/zookeeper/

    [root@centos-helios zookeeper]# docker cp 71ad055739b6:/conf /docker/zookeeper/
[root@centos-helios zookeeper]#

    centos-helios：docker cp 71ad055739b6:/conf /docker/zookeeper/
    centos-hebe：docker cp bf9df9966efb:/conf /docker/zookeeper/
    centos-hestia：docker cp 4b4f8e813c80:/conf /docker/zookeeper/

    编写zookeeper的zoo.cfg配置文件：
    1.服务器集群配置：

    • [x]centos-helios:192.168.19.1:2888:3888
    • [x]centos-hestia:192.168.19.2:2888:3888
    • [x]centos-hebe:192.168.19.3:2888:3888

    2.对应的配置文件配置如下：

    • [x]centos-helios:/docker/zookeeper/conf/zoo.cfg
    tickTime=2000
initLimit=100
syncLimit=5
dataDir=/data
dataLogDir=/datalog
clientPort=2181
quorumListenOnAllIPs=true
preAllocSize=64M
globalOutstandingLimit=100000
snapCount=50000
maxClientCnxns=64
minSessionTimeout=4000
maxSessionTimeout=40000
4lw.commands.whitelist=*
admin.enableServer=true
server.1=192.168.19.1:2888:3888
server.2=192.168.19.2:2888:3888
server.3=192.168.19.3:2888:3888
tcpKeepAlive=true
ipReachableTimeout=0
cnxTimeout=3
electionAlg=3
autopurge.snapRetainCount=5
autopurge.purgeInterval=24
#忽略ACL验证
skipACL=yes
forceSync=yes
    • [x]centos-hestia:/docker/zookeeper/conf/zoo.cfg
    tickTime=2000
initLimit=100
syncLimit=5
dataDir=/data
dataLogDir=/datalog
clientPort=2181
quorumListenOnAllIPs=true
preAllocSize=64M
globalOutstandingLimit=100000
snapCount=50000
maxClientCnxns=64
minSessionTimeout=4000
maxSessionTimeout=40000
4lw.commands.whitelist=*
admin.enableServer=true
server.1=192.168.19.1:2888:3888
server.2=192.168.19.2:2888:3888
server.3=192.168.19.3:2888:3888
tcpKeepAlive=true
ipReachableTimeout=0
cnxTimeout=3
electionAlg=3
autopurge.snapRetainCount=5
autopurge.purgeInterval=24
#忽略ACL验证
skipACL=yes
forceSync=yes
    • [x]centos-hebe:/docker/zookeeper/conf/zoo.cfg
    tickTime=2000
initLimit=100
syncLimit=5
dataDir=/data
dataLogDir=/datalog
clientPort=2181
quorumListenOnAllIPs=true
preAllocSize=64M
globalOutstandingLimit=100000
snapCount=50000
maxClientCnxns=64
minSessionTimeout=4000
maxSessionTimeout=40000
4lw.commands.whitelist=*
admin.enableServer=true
server.1=192.168.19.1:2888:3888
server.2=192.168.19.2:2888:3888
server.3=192.168.19.3:2888:3888
tcpKeepAlive=true
ipReachableTimeout=0
cnxTimeout=3
electionAlg=3
autopurge.snapRetainCount=5
autopurge.purgeInterval=24
#忽略ACL验证
skipACL=yes
forceSync=yes

    ⚠️ [注意事项]：如果是采用阿里云等云服务器部署,一般设置为：

    server.1=阿里云[外网IP OR 内网IP]:2888:3888
server.2=阿里云[外网IP OR 内网IP]:2888:3888
server.3=阿里云[外网IP OR 内网IP]:2888:3888

    编写正式安装Dcoekr命令：

    • [x]centos-helios：
    docker run -itd -p 2181:2181 -p 2888:2888 -p 3888:3888 --restart always --name=zookeeper-server --hostname zookeeper-server --privileged=true \
-v /docker/zookeeper/conf/zoo.cfg:/conf/zoo.cfg \
-v /docker/zookeeper/data:/data \
-v /docker/zookeeper/datalog:/datalog \
-v /docker/zookeeper/logs:/logs \
-e "TZ=Asia/Shanghai" \
-e "ZOO_MY_ID=1" \
-e "JAVA_OPTS=-server -Xms512m -Xmx512m -Xmn256m -Duser.home=/opt -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:+AlwaysPreTouch -XX:-UseBiasedLocking" \
zookeeper:3.5.6
    • [x]centos-hestia:
    docker run -itd -p 2181:2181 -p 2888:2888 -p 3888:3888 --restart always --name=zookeeper-server --hostname zookeeper-server --privileged=true \
-v /docker/zookeeper/conf/zoo.cfg:/conf/zoo.cfg \
-v /docker/zookeeper/data:/data \
-v /docker/zookeeper/datalog:/datalog \
-v /docker/zookeeper/logs:/logs \
-e "TZ=Asia/Shanghai" \
-e "ZOO_MY_ID=2" \
-e "JAVA_OPTS=-server -Xms512m -Xmx512m -Xmn256m -Duser.home=/opt -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:+AlwaysPreTouch -XX:-UseBiasedLocking" \
zookeeper:3.5.6
    • [x]centos-hebe：
    docker run -itd -p 2181:2181 -p 2888:2888 -p 3888:3888 --restart always --name=zookeeper-server --hostname zookeeper-server --privileged=true \
-v /docker/zookeeper/conf/zoo.cfg:/conf/zoo.cfg \
-v /docker/zookeeper/data:/data \
-v /docker/zookeeper/datalog:/datalog \
-v /docker/zookeeper/logs:/logs \
-e "TZ=Asia/Shanghai" \
-e "ZOO_MY_ID=3" \
-e "JAVA_OPTS=-server -Xms512m -Xmx512m -Xmn256m -Duser.home=/opt -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:+AlwaysPreTouch -XX:-UseBiasedLocking" \
zookeeper:3.5.6

    后续服务配置

    1.开放端口[2181 2888 3888]

    • [1].启动防火墙:systemctl start firewalld.service
    • [2].查看防火墙状态：systemctl status firewalld.service
    • [3].开放端口:firewall-cmd --zone=public --add-port=端口号/tcp --permanent
    firewall-cmd --zone=public --add-port=2181/tcp --permanent
firewall-cmd --zone=public --add-port=2888/tcp --permanent
firewall-cmd --zone=public --add-port=3888/tcp --permanent
    • [4].加载初始化防火墙生效：firewall-cmd --reload
    • [5].停用防火墙：systemctl stop firewalld.service

    ⚠️ [注意事项]：
    1.如果是Centos7以及以上系统，防火墙默认是firewall,对于Centos7版本请自行进行配置
    2.依据实测，对于2888和3888等端口必须开放，否则在使用Zookeeper服务的时候会报连接[KeeperErrorCode = ConnectionLoss]错误

    2.配置启动以及测试zookeeper服务:

    • [x]启动容器Zookeeper服务顺序:A->B->C-重启A
    • [x]进入容器输入：bin/zkServer.sh status
      centos-helios:
    root@zookeeper-server:/apache-zookeeper-3.5.6-bin# bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower
root@zookeeper-server:/apache-zookeeper-3.5.6-bin#

    centos-hestia:

    root@zookeeper-server:/apache-zookeeper-3.5.6-bin# bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: leader
root@zookeeper-server:/apache-zookeeper-3.5.6-bin#

    centos-hebe:

    root@zookeeper-server:/apache-zookeeper-3.5.6-bin# bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower
root@zookeeper-server:/apache-zookeeper-3.5.6-bin#

    ⚠️ [注意事项]：
    1.Zookeeper的集群服务采用的是Leader-Follower线程模型，如上所述。
    2.Zookeeper使用了ZAB(Zookeeper Atomic Broadcast)协议，保证了leader,follower的一致性，leader 负责数据的读写，而follower只负责数据的读，如果follower遇到写操作，会提交到leader。

    版权声明：本文为博主原创文章，遵循相关版权协议，如若转载或者分享请附上原文出处链接和链接来源。

    相关文章

      网友评论

          本文标题：Linux Centos7 环境搭建Docker部署Zookee

          本文链接：https://www.haomeiwen.com/subject/qkpkactx.html

          延伸阅读

          深度阅读

          • 您也可以注册成为美文阅读网的作者，发表您的原创作品、分享您的心情！

          栏目导航

          热点阅读

          关于我们|服务条款|联系我们|Linux Centos7 环境搭建Docker部署Zookee|投稿指南|网站地图|RSS订阅|排版工具|手机版

          提供经典美文摘抄,优美散文欣赏,现代诗歌精选,短篇小说,心情随笔,表白情书范文,故事会在线阅读欣赏

          Copyright © 2014-2023 Haomeiwen.com All Rights Reserved. 好美文阅读网 版权所有

          备案信息：桂公网安备 45052102000051号 · 桂ICP备13007215号-3

          本站所收录作品、热点评论等信息部分来源互联网，目的只是为了系统归纳学习和传递资讯

          所有作品版权归原创作者所有，与本站立场无关，如不慎侵犯了你的权益，请联系我们告知，我们将做删除处理！