title: Refreshing Auth Token while keep the requests running in JMeter 3.3
body: <p>I have the following scenario using <em>Jmeter 3.3:</em></p>
  
  <p>I would like to run "<code>Get auth token</code>" once every 2.5 minutes and meanwhile to run <code>[GET]</code> thread group non stop.</p>
  
  <p>In other words, <code>[GET]</code> is taking the auth token from the first thread group and I would like to run them in parallel and only change the token once at 2.5 min.</p>
  
  <p>I tried to add a Constant Timer to the first thread but the second thread is not running until the timer passed. </p>
  
  <p>How can I keep the <code>[GET]</code> running non-stop and "<code>Get Auth token</code>" only once at 2.5min?</p>
  
  <p><strong>LE:</strong> </p>
  
  <p><code>[GET]</code> Thread is used for load tests and should be run with ~100 active users (all using the same token)</p>
  
  <p>Constant Timer was added under HTTP Sampler</p>
  
  <pre><code>&gt; Get Auth token
  &gt;&gt; [POST] Auth token
  &gt;&gt;&gt; HTTP Header Manager
  &gt;&gt;&gt; Regular Expression Extractor
  &gt;&gt;&gt; Response Assertion
  &gt;&gt;&gt; Constant Timer
  </code></pre>
  
  <p><strong>LE2:</strong>
  I have tried adding a Test action under the first thread group. I did not manage to make Thread 2 run without waiting after Thread's 1 delay.</p>