Mindful Technology
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Mindful Technology

“Too many open files” limit/ulimit on Mac OS X

Ran into this often enough that I just wanted to summarize the steps I took based on this post to permanently increase the limit of number of open files on my Mac.

Before I started (and after getting the error):

Steps To Fix

  • Become root (let’s not argue right now …): $ sudo su — root
  • Create /Library/LaunchDaemons/limit.maxfiles.plist with this content; file will (must) be owned by root, which is important:
  • If you also want the number of allowed processes increased, create
    /Library/LaunchDaemons/limit.maxproc.plist with content:
  • Restart your computer!




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