Too many open files error on macOS

We’re going to increase an ulimit setting on macOS, but first let’s obtain the current limit of file descriptors via ulimit -n.

In case this value has not been changed before, a maximum number of open files most likely will be 256.

To increase this setting execute

ulimit -n 12288

where 12288 – a desired value.

However keep in mind that ulimit changes the limit only for current session. So put this command to your ~/.bash_profile file:

echo 'ulimit -n 12288' >> ~/.bash_profile