kafka命令行操作：
/opt/module/kafka/bin/kafka-topics.sh --bootstrap-server hadoop100:9092 --list
配置环境变量：
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib:$CLASSPATH
export JAVA_PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin
export PATH=$PATH:${JAVA_PATH}
#KAFKA_HOME
export KAFKA_HOME=/opt/module/kafka
export PATH=$PATH:$KAFKA_HOME/bin
安装jps：
yum install -y java-1.8.0-openjdk-devel.x86_64
# 查看jps命令是否存在
which jps
启动zookeeper:
cd bin
zk.sh start
启动kafka
[root@hadoop100 ~]# systemctl stop firewalld
[root@hadoop100 ~]# cd /opt/module/kafka
[root@hadoop100 kafka]# cd bin/
[root@hadoop100 bin]# kafka.sh start
