Installation on MacOS

To install MongoDB on , follow the instructions provided on the MongoDB installation site.

https://docs.mongodb.com/v3.2/installation/

To make sure MongoDB does not exceed software limits on

, follow these steps:

Create two plist files and place them in /Library/LaunchDaemons/:
1. /Library/LaunchDaemons/limit.maxfiles.plist
2. /Library/LaunchDaemons/limit.maxproc.plist

Copy the following content in the files:

For maxfiles:

<?xml version="1.0" encoding="UTF-8"?>  
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"  
        "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">  
  <dict>
    <key>Label</key>
    <string>limit.maxfiles</string>
    <key>ProgramArguments</key>
    <array>
      <string>launchctl</string>
      <string>limit</string>
      <string>maxfiles</string>
      <string>524288</string>
      <string>524288</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
    <key>ServiceIPC</key>
    <false/>
  </dict>
</plist>

For maxproc:

<?xml version="1.0" encoding="UTF-8"?>  
<!DOCTYPE plist PUBLIC "-//Apple/DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">  
  <plist version="1.0">
    <dict>
      <key>Label</key>
        <string>limit.maxproc</string>
      <key>ProgramArguments</key>
        <array>
          <string>launchctl</string>
          <string>limit</string>
          <string>maxproc</string>
          <string>2048</string>
          <string>2048</string>
        </array>
      <key>RunAtLoad</key>
        <true />
      <key>ServiceIPC</key>
        <false />
    </dict>
  </plist>

Change ownership of the files to root:wheel:
1. sudo chown root:wheel /Library/LaunchDaemons/limit.maxfiles.plist
2. sudo chown root:wheel /Library/LaunchDaemons/limit.maxproc.plist
Reload the files:
1. sudo launchctl load -w /Library/LaunchDaemons/limit.maxfiles.plist
2. sudo launchctl load -w /Library/LaunchDaemons/limit.maxproc.plist
Reboot your machine.