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Linux

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An open source operating system initially created as a platform by and for tech enthusiasts. Current primary purpose is extraction of community labor for cloud and mobile device services.

But hey at least it doesn’t come with spyware. So there’s that.

Dealing with “too many open files” on Linux

ulimit shows the maximum number of files you can open

Use -S to see the soft limit

Code Sample 
    $ ulimit -S -n
1024

And -H for the hard limit

Code Sample 
    $ ulimit -H -n
1048576

Increase the soft limit — up to your hard limit — for the current session.

Code Sample 
    ulimit -n 2048

To permanently change file limits

Edit /etc/systemd/system.conf

Code Sample 
    DefaultLimitNOFILE=4096:1048576

Edit /etc/systemd/user.conf

Code Sample 
    DefaultLimitNOFILE=4096:1048576

Apply the change with Systemd

Code Sample 
    sudo systemctl daemon-reexec

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