mac os Yosemite 設置ulimit

須要兩個配置文件

vim /Library/LaunchDaemons/limit.maxfiles.plist

配置內容

<?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>65536</string>
          <string>65536</string>
        </array>
      <key>RunAtLoad</key>
        <true/>
      <key>ServiceIPC</key>
        <false/>
    </dict>
  </plist>

vim /Library/LaunchDaemons/limit.maxproc.plist

配置內容

<?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>

更改用戶和權限

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

chmod 644 /Library/LaunchDaemons/limit.maxfiles.plist /Library/LaunchDaemons/limit.maxproc.plist

參考：http://docs.basho.com/riak/latest/ops/tuning/open-files-limit/#Mac-OS-X