- 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！！！