zookeeper集群部署

# zookeeper集群部署（docker-compose）

服务器IP：
10.150.100.21
10.150.100.22
10.150.100.23

基础配置

#创建目录，授权

mkdir -p /data/ck-cluster && cd /data/ck-cluster
mkdir -p zookeeper/{zookeeper_conf,zookeeper_data,zookeeper_logs} && chown -R 1001:0 zookeeper/

#创建配置文件,这里的data 是容器内部目录，与docker-compose对应挂载

cat >zookeeper/zookeeper_conf/zoo.cfg<<'EOF'
dataDir=/data/zookeeper/data
dataLogDir=/data/zookeeper/logs
clientPort=2181
tickTime=2000
initLimit=5
syncLimit=2
autopurge.snapRetainCount=3
autopurge.purgeInterval=0
maxClientCnxns=60

server.1=10.150.100.21:2888:3888
server.2=10.150.100.22:2888:3888
server.3=10.150.100.23:2888:3888
EOF


#三台服务器都写入 myid
root@ck-cluster01:/opt/ck-cluster# cd /data/ck-cluster && echo 1 > zookeeper/zookeeper_data/myid && chown -R 1001:0 zookeeper/
root@ck-cluster02:/opt/ck-cluster# cd /data/ck-cluster && echo 2 > zookeeper/zookeeper_data/myid && chown -R 1001:0 zookeeper/
root@ck-cluster03:/opt/ck-cluster# cd /data/ck-cluster && echo 3 > zookeeper/zookeeper_data/myid && chown -R 1001:0 zookeeper/

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配置docker-compose

cd /data/ck-cluster
cat >docker-compose.yaml<<'EOF'
version: '3'

services:
  gtrc_zookeeper:
    restart: always
    image: bitnami/zookeeper:3.4.14
    container_name: gtrc_zookeeper
    privileged: true
    environment:
      - TZ=Asia/Shanghai
      - ZK_HEAP_SIZE="1G"
      - ZK_JVM_FLAGS="-server -XX:+UseG1GC -XX:MaxGCPauseMillis=200 -XX:InitiatingHeapOccupancyPercent=35 -XX:+ExplicitGCInvokesConcurrent -Djava.awt.headless=true -Djava.net.preferIPv4Stack=true"
    volumes:
      - /etc/localtime:/etc/localtime
      - ./zookeeper/zookeeper_data:/data/zookeeper/data
      - ./zookeeper/zookeeper_logs:/data/zookeeper/logs
      - ./zookeeper/zookeeper_conf/zoo.cfg:/opt/bitnami/zookeeper/conf/zoo.cfg
#    ports:
#      - "0.0.0.0:2181:2181"
#      - "0.0.0.0:2888:2888"
#      - "0.0.0.0:3888:3888"
    entrypoint: ["/opt/bitnami/zookeeper/bin/zkServer.sh","start-foreground"]
    network_mode: host
EOF

#启动容器
docker-compose -f docker-compose.yaml up -d

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# zookeeper集群部署

# 安装jdk环境

jdk环境配置🤞🤞

# zookeeper安装

zookeeper-Apache下载地址 (opens new window)

# 配置zookeeper集群

wget https://archive.apache.org/dist/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz 
tar xf zookeeper-3.4.14.tar.gz -C /opt 
ln -s /opt/zookeeper-3.4.14/ /opt/zookeeper
cd /opt/zookeeper/

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配置zoo.cfg

mkdir -p /data/zookeeper/{data,logs}
vi /opt/zookeeper/conf/zoo.cfg

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单机模式示例

dataDir=/data/zookeeper/data
dataLogDir=/data/zookeeper/logs
clientPort=2181
tickTime=2000
initLimit=5
syncLimit=2
autopurge.snapRetainCount=3
autopurge.purgeInterval=0
maxClientCnxns=60

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集群模式

添加hosts,或者DNS解析

tickTime=2000
initLimit=10
syncLimit=5
dataDir=/data/zookeeper/data
dataLogDir=/data/zookeeper/logs
clientPort=2181
server.1=hdss14-12.host.com:2888:3888
server.2=hdss14-21.host.com:2888:3888
server.3=hdss14-22.host.com:2888:3888

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添加myid

注意这个myid要与zoo.cfg里面的 server.ID 对应

[root@hdss14-12 src]# echo '1' > /data/zookeeper/data/myid 
[root@hdss14-21 src]# echo '2' > /data/zookeeper/data/myid 
[root@hdss14-22 src]# echo '3' > /data/zookeeper/data/myid

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# 启动，检查

#启动
/opt/zookeeper/bin/zkServer.sh start 

#三台都执行，再检查
/opt/zookeeper/bin/zkServer.sh status

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zookeeper启动异常，检查

bash -x /opt/zookeeper/bin/zkServer.sh start
找到java 执行的那条命令，在命令行执行，查看报错日志

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[root@hdss14-12 zookeeper]# ./bin/zkServer.sh status 
ZooKeeper JMX enabled by default 
Using config: /opt/zookeeper/bin/../conf/zoo.cfg 
Mode: follower 
[root@hdss14-21 zookeeper]# ./bin/zkServer.sh status 
ZooKeeper JMX enabled by default 
Using config: /opt/zookeeper/bin/../conf/zoo.cfg 
Mode: leader 
[root@hdss14-22 zookeeper]# ./bin/zkServer.sh status 
ZooKeeper JMX enabled by default 
Using config: /opt/zookeeper/bin/../conf/zoo.cfg 
Mode: follower

# zookeeper添加到systemd

创建用户，修改权限

groupadd zookeeper
useradd  -M -s /sbin/nologin -g zookeeper zookeeper
chown -R zookeeper.zookeeper /data/zookeeper/

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添加zookeeper systemd

vi /usr/lib/systemd/system/zookeeper.service

[Unit]
Description=ZooKeeper Service
After=network.target
After=syslog.target

[Service]
Environment=ZOO_LOG_DIR=/data/zookeeper/logs
Environment=JAVA_HOME=/usr/local/jdk1.8
PIDFile=/data/zookeeper/data/zookeeper_server.pid
SyslogIdentifier=zookeeper

Type=forking
User=zookeeper
Group=zookeeper
ExecStart=/opt/zookeeper/bin/zkServer.sh start /opt/zookeeper/conf/zoo.cfg
ExecStop=/opt/zookeeper/bin/zkServer.sh stop /opt/zookeeper/conf/zoo.cfg
ExecReload=/bin/kill -HUP $MAINPID

[Install]
WantedBy=default.target

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上次更新: 2025/05/09, 11:56:38

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