参考网站:https://www.cnblogs.com/hongdada/p/7887455.html
https://my.oschina.net/codingcloud/blog/1615013
https://blog.csdn.net/Ahri_J/article/details/79609444
安装kibana过程: http://blog.51cto.com/zero01/2082794
排除故障过程:
修改好了以后，调用sysctl -a查看，发现参数并没有变动，要重启才可以。
报告错误unable Unable to revive connection: http://localhost:9200/
https://blog.csdn.net/yybk426/article/details/80090238
