java server with jetty memory leak issue
<p>I´m running this application with a Jetty server embedded. The application is slowly consuming more memory dispite the fact that the heap size does not change at all.</p>

<p>this is the command to start the application :</p>

<p>java -server -Xms1G -Xmx1G -Dfile.encoding=UTF-8 </p>

<p>This is the chart from new relic with the RAM usage increase
<a href="https://i.stack.imgur.com/EU1Un.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EU1Un.png" alt="enter image description here"></a>
it started using 1140MB and after 8 hours finished with 1290MB </p>

<p>This is the jvisualvm chart of the heap.
<a href="https://i.stack.imgur.com/dBOun.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dBOun.png" alt="enter image description here"></a></p>

<p>Any suggestions ?</p>

<p>[EDIT1] 
add dump <a href="https://www.dropbox.com/s/1gt1i9dhjtjauf0/gameserver-20160226-2107.zip?dl=0" rel="nofollow noreferrer">https://www.dropbox.com/s/1gt1i9dhjtjauf0/gameserver-20160226-2107.zip?dl=0</a></p>

<p>[EDIT2]
Here are some notes from my current investigation </p>

<p>= How Monitor memory outside the heap
add parameters </p>

<pre><code>-XX:NativeMemoryTracking=detail -XX:+UnlockDiagnosticVMOptions -XX:+PrintNMTStatistics
</code></pre>

<p>run command
jcmd 3322 VM.native_memory summary
@see <a href="https://devcenter.heroku.com/articles/java-memory-issues" rel="nofollow noreferrer">https://devcenter.heroku.com/articles/java-memory-issues</a></p>

<p>= Checking the default thread stack size 
java -XX:+PrintFlagsFinal -version | grep ThreadStackSize</p>

<blockquote>
  <blockquote>
    <p>intx ThreadStackSize                           = 1024<br>
    <a href="https://stackoverflow.com/questions/1479214/how-to-reclaim-the-memory-used-by-a-java-thread-stack">How to reclaim the memory used by a Java thread stack?</a></p>
  </blockquote>
</blockquote>

<p>= Understand the max memory
Max memory = [-Xmx] + [-XX:MaxPermSize] + number_of_threads * [-Xss]
@see <a href="https://plumbr.eu/blog/memory-leaks/why-does-my-java-process-consume-more-memory-than-xmx" rel="nofollow noreferrer">https://plumbr.eu/blog/memory-leaks/why-does-my-java-process-consume-more-memory-than-xmx</a></p>

<p>= Actions 
Reduce the size of the thread stacks. (In theory, you can go as low as 64K ...)</p>

<pre><code>-XX:ThreadStackSize=256
</code></pre>

<p>Reduce the Minimum percentage of heap free after GC to avoid expansion.</p>

<pre><code>-XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=10
</code></pre>

<p>Now will continue monitoring ...</p>