title: How to run multiple selenium processes at a time with nightwatch?
body: <p>I'm using nightwatch to run tests in parallel. I would like to be able to run multiple tests at a time in different selenium processes. How can I accomplish that? </p>
  
  <p>What I did is create a selenium hub:</p>
  
  <pre><code>java -jar /opt/selenium-server-standalone-2.53.0.jar -Dwebdriver.chrome.driver=/usr/bin/chromedriver -Dwebdriver.chrome.bin=/usr/bin/google-chrome  -log /home/jenkins-user/log/selenium.log  -role hub &amp; 
  </code></pre>
  
  <p>And when each test runs, I create a node:</p>
  
  <pre><code>java -jar /opt/selenium-server-standalone-2.53.0.jar -Dwebdriver.chrome.driver=/usr/bin/chromedriver -Dwebdriver.chrome.bin=/usr/bin/google-chrome  -log /home/jenkins-user/log/selenium.log  -role node  -browser browserName=chrome -hub http://localhost:4444/grid/register &amp; 
  </code></pre>
  
  <p>Unfortunately, this prevents me from running nightwatch tests in parallel. </p>
  
  <p>What am I doing wrong?</p>