1.场景还原

     elasticsearch作为一个高可用的分布式搜索引擎，在电商项目广泛被应用；今天笔者就elasticsearch在linux中如何通过脚本实现开机自启作个分享

2.实现方案

①在/etc/init.d目录下创建elasticsearch文件

脚本如下：

#!/bin/sh
#chkconfig: 2345 80 05
#description: elasticsearch

export JAVA_HOME=/usr/java/jdk1.8.0_112
export JAVA_BIN=/usr/java/jdk1.8.0_112/bin
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export JAVA_HOME JAVA_BIN PATH CLASSPATH

case "$1" in
start)
su zhangxing<<!
cd /home/lyt/dev-repo/elk5/elasticsearch-5.6.9
./bin/elasticsearch -d
!
echo "elasticsearch startup"
;;
stop)
es_pid=`ps aux|grep elasticsearch | grep -v 'grep elasticsearch' | awk '{print $2}'`
kill -9 $es_pid
echo "elasticsearch stopped"
;;
restart)
es_pid=`ps aux|grep elasticsearch | grep -v 'grep elasticsearch' | awk '{print $2}'`
kill -9 $es_pid
echo "elasticsearch stopped"
su zhangxing<<!
cd /home/lyt/dev-repo/elk5/elasticsearch-5.6.9
./bin/elasticsearch -d
!
echo "elasticsearch startup"
;;
*)
echo "start|stop|restart"
;;
esac

exit $?

修改你自定义的elasticsearch安装目录路径以及JDK的安装目录，还有非root账户的配置

②保存退出，赋予该脚本执行权限

chmod +x elasticsearch 

③将elasticsearch添加到开机启动任务

chkconfig -add elasticsearch

好了，我是张星，欢迎加入博主技术交流群，群号：526601468