启动失败一
ERROR: [2] bootstrap checks failed [1]:
max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536] [2]:
max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
永久解决：
#修改文件 /etc/security/limits.conf ，在下面添加下面两句内容
* hard nofile 65536
* soft nofile 65536
启动失败二
max file size [67108864] for user [elastic] is too low, increase to [unlimited]
，#切换root用户，执行下面命令
ulimit -f unlimited
永久解决：
vim /etc/security/limits.conf
加上下面的语句
elastic - fsize unlimited
启动失败三
kibana启动报File size limit exceeded
解决方法：同失败二的解决方法