zookeeper部署kafka集群
1.准备工作:
iptables -F #关闭防火墙
systemctl stop firewalld.service #关闭防火墙
准备三台虚拟机并放入/etc/hosts下
192.168.100.242 testceph
192.168.100.244 redis1
192.168.100.245 redis2
将testceph的/etc/hosts文件拷贝到其他两台虚拟机上
命令:
[root@testceph ~]# for i in 244 245
> do
> scp /etc/hosts 192.168.100.$i:/etc/
> done
root@192.168.100.244's password: 输入密码
hosts 100% 238 231.1KB/s 00:00
root@192.168.100.245's password: 输入密码
hosts 100% 238 418.2KB/s 00:00
2.安装依赖包
[root@testceph ~]yum install -y gcc g++ make gcc-c++ kernel-devel automake autoconf libtool make wget tcl vim unzip git java
3.准备 zookeeper目录 三个节点 192.168.100.242 192.168.100.244 192.168.100.245 (三台都要操作)
命令:mkdir /opt/zookeeper
mkdir /opt/zookeeper/zkdata
mkdir /opt/zookeeper/zkdatalog
zookeeper安装路径:wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz
命令:cp /root/zookeeper-3.4.14.tar.gz /opt/
命令:cd /opt
命令:tar -zxvf zookeeper-3.4.14.tar.gz -C /opt/zookeeper
命令:cp /opt/zookeeper/zookeeper-3.4.14/conf/zoo_sample.cfg /opt/zookeeper/zookeeper-3.4.14/conf/zoo.cfg #备份配置文件
4.修改zookeeper配置文件
命令:vim /opt/zookeeper/zookeeper-3.4.14/conf/zoo.cfg # 这样查看的配置 cat /opt/zookeeper/zookeeper-3.4.14/conf/zoo.cfg | egrep -v "^$|^#"
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/opt/zookeeper/zkdata
dataLogDir=/opt/zookeeper/zkdatalog
clientPort=2181
server.1=192.168.100.242:2888:3888
server.2=192.168.100.244:2888:3888
server.3=192.168.100.245:2888:3888
(注意:前面不能有空格)
注意:server.1 这个1是服务器的标识也可以是其他的数字, 表示这个是第几号服务器,用来标识服务器,这个标识要写到快照目 录下面myid文件里
192.168.100.245为集群里的IP地址,第一个端口是master和slave之间的通信端口,默认是2888,第二个端口是leader选举的 端口,集群刚启动的时候选举或者leader挂掉之后进行新的选举的端口默认是3888
注意
如果指定了日志位置需要修改下面参数
cp /opt/zookeeper/zookeeper-3.4.14/bin/zkServer.sh /opt/zookeeper/zookeeper-3.4.14/bin/zkServer.sh.bak
命令:vim /opt/zookeeper/zookeeper-3.4.14/bin/zkServer.sh
ZOO_LOG_DIR="$($GREP "^[[:space:]]*dataLogDir" "$ZOOCFG" | sed -e 's/.*=//')" #124添加这一行
5.拷贝配置好的文件到其他主机
命令:scp -r /opt/zookeeper 192.168.100.244:/opt/
命令:scp -r /opt/zookeeper 192.168.100.245:/opt/
创建快照目录myid文件
#server.1
echo "1" > /opt/zookeeper/zkdata/myid
#server.2
echo "2" > /opt/zookeeper/zkdata/myid
#server.3
echo "3" > /opt/zookeeper/zkdata/myid
6.启动服务
命令:/opt/zookeeper/zookeeper-3.4.14/bin/zkServer.sh start
命令:/opt/zookeeper/zookeeper-3.4.14/bin/zkServer.sh status #查看状态
注意:当看见有一台Mode:leader(管理节点) 两台Mode:follower(节点)即为成功
以上就是zookeeper配置完成,接下来配置kafka
1.kafka集群目录准备
命令:mkdir /opt/kafka
命令:mkdir /opt/kafka/kafkalogs
命令:cd /opt/kafka
命令:wget http://mirrors.tuna.tsinghua.edu.cn/apache/kafka/2.3.1/kafka_2.12-2.3.1.tgz #安装包路径
命令:tar -zvxf kafka_2.12-2.3.1.tgz #解包
2.修改配置文件
有三处需要修改
listeners=PLAINTEXT://192.168.100.242:9092 #开启PLAINTEXT认证(用户名和密码认证)确保9092端口能够连接
log.dirs=/opt/kafka/kafkalogs/ #指定kafka日志路径
zookeeper.connect=192.168.100.242:2181,192.168.100.244:2181,192.168.100.245:2181 #指定zookeeper集群路径
[root@testceph kafka]# cat /opt/kafka/kafka_2.12-2.3.1/config/server.properties | egrep -v "^$|^#" #查看所有参数
broker.id=0
listeners=PLAINTEXT://192.168.100.242:9092
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=/opt/kafka/kafkalogs/
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=192.168.100.242:2181,192.168.100.244:2181,192.168.100.245:2181
zookeeper.connection.timeout.ms=6000
group.initial.rebalance.delay.ms=0
3.拷贝配置好的文件和程序
命令:scp -r /opt/kafka 192.168.100.244:/opt/
命令:scp -r /opt/kafka 192.168.100.245:/opt/
4.其他节点只需修改两处
broker.id=1 #节点id号不能一样
listeners=PLAINTEXT://192.168.100.244:9092 #认证的IP号和自己的主机IP一致
5.运行kafka服务在三个节点
命令:nohup /opt/kafka/kafka_2.12-2.3.1/bin/kafka-server-start.sh /opt/kafka/kafka_2.12-2.3.1/config/server.properties >/dev/null 2>&1 &
6.随便在其中一台节点主机执行
命令:/opt/kafka/kafka_2.12-2.3.1/bin/kafka-topics.sh --create --zookeeper 192.168.100.242:2181,192.168.100.244:2181,192.168.100.245:2181 --replication-factor 1 --partitions 1 --topic test
#通过zookeeper集群创建topics名字test(消息主题:相当于文件系统目录,用于保存消息内容)
命令:/opt/kafka/kafka_2.12-2.3.1/bin/kafka-topics.sh --list --zookeeper 192.168.100.242:2181,192.168.100.244:2181,192.168.100.245:2181
#通过zookeeper集群来查看topics列表(只有刚才创建的test)
7.查看topic状态
命令:/opt/kafka/kafka_2.12-2.3.1/bin/kafka-topics.sh --describe --zookeeper 192.168.100.242:2181,192.168.100.244:2181,192.168.100.245:2181 --topic test
#通过zookeeper集群查看topic状态
有什么做得不对的指正一下,在下不胜感激
知识扩展:
1.如果kafka已经输入过内容,查看内容的命令就是
命令:/opt/kafka/kafka_2.12-2.3.1/bin/kafka-consumer-groups.sh --bootstrap-server 192.168.100.242:9092,192.168.100.244:9092,192.168.100.245:9092 --list groupid
#通过zookeeper集群来查看列表组ID
2.查看具体的消费者group的详情信息,需要给出group的名称
命令:/opt/kafka/kafka_2.12-2.3.1/bin/kafka-consumer-groups.sh --bootstrap-server 192.168.100.242:9092,192.168.100.244:9092,192.168.100.245:9092 --group orderdy030_refund --describe
总结:。。。。。。。。。。。(此处省略一万字)