title: Stable JVM but system memory increase
body: <p>I am running a java application on a Ubuntu 16.04 server. After extensive investigation I have discovered that the JVM heap size is more or less constant. At any rate there are no memory increase. </p>
  
  <p>However, when I look at the server using <code>htop</code> the memory consumption of the server grows at an alarming rate. I am not sure what exactly is causing this but its 100% originating from java process.</p>
  
  <p>I have looked at the <code>hprof</code> files but I cant really tell what Im looking for.</p>
  
  <p>I am running two libs that might be responsible but I am not intimately familiar with them; </p>
  
  <ul>
  <li><em>OrientDB (plocal)</em></li>
  <li><em>Hazelcast</em></li>
  </ul>
  
  <p>Im not sure if either / both of these would cause a memory increase outside the JVM.</p>
  
  <p>Any advice on the best plan to help identify the problem would be great.</p>