3.8 配置scala
下载,解压
wget https://downloads.lightbend.com/scala/2.13.0-M5/scala-2.13.0-M5.tgz
tar -zxvf scala-2.13.0-M2.tgz
mv scala-2.13.0-M5 /usr/local/scala
环境变量设置
sudo vi /etc/profile
#scala
export SCALA_HOME=/usr/local/scala
export PATH=${SCALA_HOME}/bin:$PATH
source /etc/profile
执行 scala 命令,输出以下信息,表示安装成功:
scala
3.9配置Kafka
解压文件,移动到约定目录,进入config配置文件server.properties
tar xf kafka_2.12-2.3.0.tgz
mv kafka_2.12-2.3.0 /usr/local/kafka
cd /usr/local/kafka/config
vim server.properties
修改第一处:
broker.id=0
host.name=master
#master节点为0,slave1为1,slave2为2。
修改第二处:
log.dirs=/usr/local/kafka/logs
zookeeper.connect=master:2181,slave1:2181,slave2:2181
#规定日志路径,便于排错。
启动kafka,必须优先启动zookeeper
/usr/local/kafka/bin/kafka-server-start.sh -daemon /usr/local/kafka/config/server.properties