title: What is and how to control Memory Storage in Executors tab in web UI?
body: <p>I use Spark 1.5.2 for a Spark Streaming application.</p>
  
  <p>What is this <strong>Storage Memory</strong> in Executors tab in web UI? How was this to reach 530 MB? How to change that value?</p>
  
  <p><a href="https://i.stack.imgur.com/B329O.png" rel="noreferrer"><img src="https://i.stack.imgur.com/B329O.png" alt="enter image description here"></a></p>