- Check the current global limitatoins
ulimit -a

2. Find the pid of target process
ps -ef|grep yourprocessname
3.0 View the amount of files of process:
ls /proc/926/fd | wc -l
3. View the open files of target proces

3. Change open files value
ulimit -n 20480
4. restart process
5. The above method only works for current sytem, it will missing when restart the server, so we have to change system files
vim /etc/security/limits.conf
add the following content in the end:
* soft nofile 20480
* hard nofile 20480
- Change /etc/supervisor/supervisord.conf, add “minfds=XXX” under
[supervisord]

- Restart supervisor
全局配置
临时突破全局文件句柄数(所有进程所能够创建的文件句柄数)
- 查看全局文件句柄数:cat /proc/sys/fs/file-max
- 配置:echo 1000000 > /proc/sys/fs/file-max
- 配置后立即生效
永久突破全局文件句柄数
- 配置文件/etc/sysctl.conf,在文件末尾加上:fs.file-max=1000000
- 使配置文件生效:sysctl -p
特别注意:
- 局部文件句柄数一定不要超过全局文件句柄数!!!我就遇到过,因为一时疏忽,把局部文件句柄数设置超过了全局文件句柄数,导致无法开机后无法登陆的现象!!!