ubuntu项目环境配置

ubuntu20.04安装elasticsearch

https://blog.csdn.net/weixin_44596128/article/details/103970665

https://zhuanlan.zhihu.com/p/336560713

max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

https://blog.csdn.net/xcc_2269861428/article/details/100186654

elasticsearch启动脚本

#! /bin/bash
#chkconfig: 345 63 37
#description: elasticsearch
#processname: elasticsearch-6.4.0

export ES_HOME=/opt/elasticsearch-6.4.0/

case $1 in
        start)
                su es<<!
                cd $ES_HOME
                ./bin/elasticsearch -d -p pid
                exit
!
                echo "elasticsearch is started"
                ;;
        stop)
                pid=`cat $ES_HOME/pid`
                kill -9 $pid
                echo "elasticsearch is stopped"
                ;;
        restart)
                pid=`cat $ES_HOME/pid`
                kill -9 $pid
                echo "elasticsearch is stopped"
                sleep 1
                su elastic<<!
                cd $ES_HOME
                ./bin/elasticsearch -d -p pid
                exit
!
                echo "elasticsearch is started"
        ;;
    *)
        echo "start|stop|restart"
        ;;
esac
exit 0