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down vote

It seems like there is an entirely different method for changing the open files limit for each version of OS X!

For OS X Sierra (10.12.X) you need to:

1. Create a file at /Library/LaunchDaemons/limit.maxfiles.plist and paste the following in (feel free to change the two numbers (which are the soft and hard limits, respectively):

      
        
         
      
       Label
          
      
       limit.maxfiles
          
      
       ProgramArguments
          
            
       
        launchctl
             
       
        limit
             
       
        maxfiles
             
       
        64000
             
       
        524288
           
          
      
       RunAtLoad
          
          
      
       ServiceIPC
          
        
     
    

2. Change the owner of your new file:

sudo chown root:wheel /Library/LaunchDaemons/limit.maxfiles.plist

3. Load these new settings:

sudo launchctl load -w /Library/LaunchDaemons/limit.maxfiles.plist

4. Finally, check that the limits are correct:

launchctl limit maxfiles