报错信息
[1]: max file descriptors [65535] for elasticsearch process is too low, increase to at least [65536]
![max file descriptors [65535] for elasticsearch process is too low,【已解决】](https://ctyun-collect-0531.gdoss.xstore.ctyun.cn/files/2022/10/18/20c1e2340e5e48bc99579128886b62e7.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=/resize,m_fixed,w_750 "max file descriptors [65535] for elasticsearch process is too low,【已解决】")
原因
![max file descriptors [65535] for elasticsearch process is too low,【已解决】](https://ctyun-collect-0531.gdoss.xstore.ctyun.cn/files/2022/10/18/a63b05bf75c14faaa15c7ee22511695c.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=/resize,m_fixed,w_750 "max file descriptors [65535] for elasticsearch process is too low,【已解决】")
解决
第一步：修改 /etc/security/limits.conf，修改到提示值即可
[root@centos7.4-64 ~]# vim /etc/security/limits.conf
* hard nofile 65536
注意：如果不生效，可能和命令行的缓存有关，关闭命令行重新打开，再启动 elasticsearch
第二步：修改 /etc/sysctl.conf
添加配置：vm.max_map_count=262144，然后执行命令 sysctl -p
