Installing unlimited users and descriptions on the server

When you do this task, you get the error “too many files open limit”. This means that there is a limitation on opening Linux files according to the user’s session. To do this, add a line to /etc/sysctl.conf and run sysctl -p:

fs.file-max = 80000

Next, we check the default constraints. This can be done with the following command:

cat /proc/sys/fs/ file-max

file-max is the maximum file descriptor. This is a kernel setting applied at the system level. Also you can check the default values ​​for the root user.

ulimit -a

It is also possible to set hard and soft limits by editing this vim file /etc/security/limits.conf

* hard nofile 600000
* soft nofile 600000

Set hard and soft limits for Linux user

linux hard nofile 600000
linux soft nofile 600000

Then run the following command to make the changes

sysctl -p

It is also possible to check how many files are open at the moment using following command

lsof | wc -l

You can check how many file descriptions are currently in use with the following command:

more /proc/sys/fs/file-nr

Check the file descriptor limit for the currently open file using the following commands

more /proc/sys/fs/file-max
sysctl -a | grep fs.file-max

After making the changes, you need to log out and log back in.