1.4.10 linux和高并发-shell编程-Zookeeper启动脚本（启动，停止，查看状态）

末蓝、 2022-11-20 08:10 153阅读 0赞

# 1.简单了解 #

*  登录式 Shell， 采用用户名密码，比如 xiaokang 登录， 会自动加载`/etc/profile`
 *  非登录式 Shell， 采用 ssh 比如 ssh hadoop02 登录， 不会自动加载`/etc/profile`， 会自动加载`~/.bashrc`

![20201027160622360.png][]

想要通过非登录式 Shell 来使用其它节点的环境变量就需要做以下操作：

# 1.将当前节点的/etc/profile中已经配置好的环境变量复制到/etc/profile.d/env.sh(此文件需要手动创建)
    [xiaokang@hadoop01 bin]$ sudo vim /etc/profile.d/env.sh
    
    export JAVA_HOME=/opt/moudle/jdk1.8.0_191
    export JRE_HOME=${JAVA_HOME}/jre
    export HADOOP_HOME=/opt/software/hadoop-2.7.7
    export ZOOKEEPER_HOME=/opt/software/zookeeper-3.5.7
    export HIVE_HOME=/opt/software/hive-2.3.6
    export HBASE_HOME=/opt/software/hbase-1.4.13
    export KYLIN_HOME=/opt/software/kylin-3.0.1
    export KAFKA_HOME=/opt/software/kafka-2.1.0
    export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
    export PATH=${JAVA_HOME}/bin:${HADOOP_HOME}/bin:${HADOOP_HOME}/sbin:${ZOOKEEPER_HOME}/bin:${HIVE_HOME}/bin:${HBASE_HOME}/bin:${KYLIN_HOME}/bin:${KAFKA_HOME}/bin:$PATH
    
    # 2.分发至各个节点
    [root@hadoop01 ~]$ distribution.sh /etc/profile.d/env.sh

# 2.脚本源码 #

#!/bin/bash
    
    USAGE="使用方法：sh zk.sh start/stop/status"
    if [ $# -ne 1 ];then
            echo $USAGE
            exit 1
    fi
    NODES=("hadoop01" "hadoop02" "hadoop03")
    ZOOKEEPER_HOME=/opt/software/zookeeper-3.5.7
    case $1 in
    "start")
            for NODE in ${NODES[*]};do
                    echo "--------$NODE启动zookeeper--------"
                    ssh $NODE "$ZOOKEEPER_HOME/bin/zkServer.sh start"
            done
            ;;
    "stop")
            for NODE in ${NODES[*]};do
                    echo "--------$NODE停止zookeeper--------"
                    ssh $NODE "$ZOOKEEPER_HOME/bin/zkServer.sh stop"
            done
            ;;
    "status")
            for NODE in ${NODES[*]};do
                    echo "--------$NODE查看zookeeper状态--------"
                    ssh $NODE "$ZOOKEEPER_HOME/bin/zkServer.sh status"
            done
            ;;
    *)
            echo $USAGE
            ;;
    esac

# 3.测试使用 #

\# 修改脚本权限 chmod 777 zk.sh

执行方式：

# 方式一
    [xiaokang@hadoop01 bin]$ ./zk.sh start
    # 方式二
    [xiaokang@hadoop01 bin]$ sh zk.sh start
    # 方式三
    # 1.将shell脚本所在目录配置为环境变量（/etc/profile），记得source生效
    export SHELL_HOME=/home/xiaokang/bin
    export PATH=${JAVA_HOME}/bin:${HADOOP_HOME}/bin:${HADOOP_HOME}/sbin:${ZOOKEEPER_HOME}/bin:${HIVE_HOME}/bin:${HBASE_HOME}/bin:${KYLIN_HOME}/bin:${KAFKA_HOME}/bin:${SCALA_HOME}/bin:${SCALA_HOME}/sbin:${SPARK_HOME}/bin:${SHELL_HOME}/:$PATH
    # 2.在任意目录都可以使用自己编写的shell脚本
    [xiaokang@hadoop01 ~]$ zk.sh start

使用脚本进行启动和查看状态测试，成功如下图所示：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1N1eWViaXViaXU_size_16_color_FFFFFF_t_70][]

[20201027160622360.png]: /images/20221120/21b6194467d0466bb3f2f060617a9196.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1N1eWViaXViaXU_size_16_color_FFFFFF_t_70]: /images/20221120/ca89ee30c7994be9a61d27ba80e712e6.png