title: What is AM limit in yarn?
body: <p>I have heard the term AM limit a couple of times in the context of running jobs in a yarn Big Data cluster.</p>
  
  <p>Its also mentioned here:
  <a href="https://issues.apache.org/jira/browse/YARN-6428" rel="nofollow noreferrer">https://issues.apache.org/jira/browse/YARN-6428</a></p>
  
  <p>What does it mean?</p>