Is setting the right value of
worker_rlimit_nofile in nginx.conf enough solve the issue of
Too many open files in nginx?
Or do I still need to update the
In Linux, you can see if that option has changed the limits of the process by running:
If that option is not changing the limits or if you have a too restrictive hard limit you need to change the
I do not think you need to modify limits.conf. The point of worker_rlimit_nofile is to provide a quick and dirty way to do this via RLIMIT_NOFILE.
However, there are hard system limits set by the OS which you may need to override using sysctl.conf.
In practice, I usually set my fs.file-max in sysctl to about 4X the rlimit for my apps. No basis for this other than I never want something to fail due to hitting this limit. And a 2-4X range is usually sufficiently high to only trigger when there's a major issue with the apps.