#### 部署zookeeper集群
1、先部署zookeeper集群一般是3个节点,安装zookeeper 依赖java 环境先安装 jdk
yum install java-1.8.0-openjdk-devel -y
java -version #查看jdk版本
2、创建工作目录（3个节点都需要执行）
mkdir -p /usr/local/zookeeper
日志存储目录（3个节点都需要执行）
mkdir -p /usr/local/zookeeper/dataDir
3、下载安装包并解压(3个节点都需要执行)
cd /usr/local/zookeeper
wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.8.0/apache-zookeeper-3.8.0-bin.tar.gz
tar -xvf apache-zookeeper-3.8.0-bin.tar.gz
4、新增实例文件（3个节点都需要执行）myid文件后续zoo.cfg中使用
echo "1" > /usr/local/zookeeper/dataDir/myid
echo "2" > /usr/local/zookeeper/dataDir/myid
echo "3" > /usr/local/zookeeper/dataDir/myid
5、配置修改,并scp 到另外2台机器上面
cd /usr/local/zookeeper/apache-zookeeper-3.8.0-bin/conf
mv zoo_sample.cfg zoo.cfg
vim zoo.cfg
egrep -v "^#|^$" zoo.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/usr/local/zookeeper/dataDir
server.1=10.x.x.2:2888:3888
server.2=10.x.x.3:2888:3888
server.3=10.x.x.4:2888:3888
clientPort=2181
maxClientCnxns=60
6、关闭防火墙
systemctl stop firewalld && systemctl disable firewalld
7、配置systemd 服务
cd /usr/lib/systemd/system/
创建zookeeper 服务文件
cat zookeeper.service
[Unit]
Description=zookeeper.service
After=network.target
[Service]
Type=forking
Environment="PATH=/usr/local/jdk1.8.0_311/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin"
User=root
Group=root
ExecStart=/usr/local/zookeeper/apache-zookeeper-3.8.0-bin/bin/zkServer.sh start
ExecStop=/usr/local/zookeeper/apache-zookeeper-3.8.0-bin/bin/zkServer.sh stop
Restart=on-failure
[Install]
WantedBy=multi-user.target
刷新 systemctl
systemctl daemon-reload
systemctl enable --now zookeeper
8、 查看集群状态
/usr/local/zookeeper/apache-zookeeper-3.8.0-bin/bin/zkServer.sh status
#######部署kafka集群###########
1、创建工作目录（3个节点都需要执行）
mkdir -p /usr/local/kafka
2、下载安装包解压(3个节点都需要执行)
cd /usr/local/kafka
wget https://mirrors.tuna.tsinghua.edu.cn/apache/kafka/3.4.0/kafka_2.13-3.4.0.tgz
tar zxf kafka_2.13-3.4.0.tgz
3、cd /usr/local/kafka/kafka_2.13-3.4.0/config （3个节点都需要只需要关注修改项broker.id、listeners、zookeeper.connect、log.dirs）
#节点1#
vim server.properties
broker.id=0
listeners=PLAINTEXT://10.x.x.2:9092
num.network.threads=3
num.io.threads=8
socket.send.buffer.bytes=102400
socket.receive.buffer.bytes=102400
socket.request.max.bytes=104857600
log.dirs=/var/log/kafka-logs
num.partitions=1
num.recovery.threads.per.data.dir=1
offsets.topic.replication.factor=1
transaction.state.log.replication.factor=1
transaction.state.log.min.isr=1
log.retention.hours=168
log.segment.bytes=1073741824
log.retention.check.interval.ms=300000
zookeeper.connect=10.x.x.2:2181,10.x.x.3:2181,10.x.x.4:2181
zookeeper.connection.timeout.ms=18000
group.initial.rebalance.delay.ms=0
#节点2#
broker.id=1
listeners=PLAINTEXT://10.x.x.3:9092
num.network.threads=3
num.io.threads=8
socket.send.buffer.bytes=102400
socket.receive.buffer.bytes=102400
socket.request.max.bytes=104857600
log.dirs=/var/log/kafka-logs
num.partitions=1
num.recovery.threads.per.data.dir=1
offsets.topic.replication.factor=1
transaction.state.log.replication.factor=1
transaction.state.log.min.isr=1
log.retention.hours=168
log.segment.bytes=1073741824
log.retention.check.interval.ms=300000
zookeeper.connect=10.x.x.2:2181,10.x.x.3:2181,10.x.x.4:2181
zookeeper.connection.timeout.ms=18000
group.initial.rebalance.delay.ms=0
#节点3#
broker.id=3
listeners=PLAINTEXT://10.x.x.4:9092
num.network.threads=3
num.io.threads=8
socket.send.buffer.bytes=102400
socket.receive.buffer.bytes=102400
socket.request.max.bytes=104857600
log.dirs=/var/log/kafka-logs
num.partitions=1
num.recovery.threads.per.data.dir=1
offsets.topic.replication.factor=1
transaction.state.log.replication.factor=1
transaction.state.log.min.isr=1
log.retention.hours=168
log.segment.bytes=1073741824
log.retention.check.interval.ms=300000
zookeeper.connect=10.x.x.2:2181,10.x.x.3:2181,10.x.x.4:2181
zookeeper.connection.timeout.ms=18000
group.initial.rebalance.delay.ms=0
4、 配置 systemd kafka服务，创建kafka服务文件(3台节点都需要执行)
cd /lib/systemd/system/
vim kafka.service
[Unit]
Description=broker(Apache Kafka server)
After=network.target zookeeper.service
[Service]
Type=simple
Environment="PATH=/usr/local/jdk1.8.0_311/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin"
User=root
Group=root
ExecStart=/usr/local/kafka/kafka_2.13-3.4.0/bin/kafka-server-start.sh /usr/local/kafka/kafka_2.13-3.4.0/config/server.properties
ExecStop=/usr/local/kafka/kafka_2.13-3.4.0/bin/kafka-server-stop.sh
Restart=on-failure
[Install]
WantedBy=multi-user.target
5、 刷新systemctl
systemctl daemon-reload
设置kafka开机自启动
systemctl enable kafka