Errorno::EMFILE: Too many open files

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Errorno::EMFILE: Too many open files

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Command-T doesn't really open many files itself, but you probably had a bunch of stuff going on in your system at the time.

OS X has a very low limit for open file descriptors (256, I believe). Other OS's typically have limits in the thousands or even tens of thousands. You can actually up the limit, even on OS X, to as much as a million pretty safely. Here's how you could up it by an order of magnitude:

$ sudo sysctl -w kern.maxfiles=2048
$ sudo sysctl -w kern.maxfilesperproc=2048

Or put this in /etc/sysctl.conf to have this persist across reboots:

kern.maxfiles=2048
kern.maxfilesperproc=2048

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Thanks for the infos!