zookeeper设置开机自启

以下是设置zookeeper开机自启的步骤：

1. 打开终端并以root用户身份登录到服务器。
2. 进入zookeeper的init.d目录：

cd /etc/init.d

3. 创建一个名为zookeeper的启动脚本：

vi zookeeper

4. 在启动脚本中添加以下内容：

#!/bin/bash
#
# zookeeper:       Starts the zookeeper daemon
#
# chkconfig: 345 99 01
# description: Zookeeper is a distributed coordination service

# Source function library.
. /etc/init.d/functions

# Set environment variables
ZOOKEEPER_HOME=/usr/local/zookeeper-3.4.5

# Start zookeeper
start() {
    echo -n "Starting zookeeper: "
    su -c "$ZOOKEEPER_HOME/bin/zkServer.sh start" zookeeper
    echo "OK"
}

# Stop zookeeper
stop() {
    echo -n "Stopping zookeeper: "
    su -c "$ZOOKEEPER_HOME/bin/zkServer.sh stop" zookeeper
    echo "OK"
}

# Restart zookeeper
restart() {
    stop
    start
}

# Check zookeeper status
status() {
    echo -n "Zookeeper status: "
    su -c "$ZOOKEEPER_HOME/bin/zkServer.sh status" zookeeper
}

# Main logic
case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart)
        restart
        ;;
    status)
        status
        ;;
    *)
        echo "Usage: $0 {start|stop|restart|status}"
        exit 1
        ;;
esac

exit 0

5. 保存并退出编辑器。
6. 授予启动脚本执行权限：

chmod +x zookeeper

7. 将zookeeper添加到开机自启列表：

chkconfig --add zookeeper

8. 设置zookeeper开机自启：

chkconfig zookeeper on

9. 现在，您可以使用以下命令来启动、停止、重启和检查zookeeper的状态：

service zookeeper start
service zookeeper stop
service zookeeper restart
service zookeeper status