title: Camunda Optimize cannot be started. Port already in used
body: <p>As I'm trying to exploit the Camunda Enterprise version, now I'm stuck at the Optimize server. I'm not able to start the Optimize server followed by instruction. Here is the log file</p>
  
  <pre><code>16:59:37.322 [main] DEBUG o.e.j.u.component.AbstractLifeCycle - starting ServerConnector@48974e45{HTTP/1.1,[http/1.1]}{0.0.0.0:8095}
  16:59:37.325 [main] WARN  o.e.j.u.component.AbstractLifeCycle - FAILED ServerConnector@48974e45{HTTP/1.1,[http/1.1]}{0.0.0.0:8095}: java.io.IOException: Failed to bind to /0.0.0.0:8095
  java.io.IOException: Failed to bind to /0.0.0.0:8095
      at org.eclipse.jetty.server.ServerConnector.openAcceptChannel(ServerConnector.java:346)
      at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:307)
      at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80)
      at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:231)
      at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
      at org.eclipse.jetty.server.Server.doStart(Server.java:385)
      at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:72)
      at org.camunda.optimize.jetty.EmbeddedCamundaOptimize.startOptimize(EmbeddedCamundaOptimize.java:169)
      at org.camunda.optimize.Main.main(Main.java:17)
  Caused by: java.net.BindException: Address already in use: bind
      at sun.nio.ch.Net.bind0(Native Method)
      at sun.nio.ch.Net.bind(Net.java:433)
      at sun.nio.ch.Net.bind(Net.java:425)
      at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
      at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
      at org.eclipse.jetty.server.ServerConnector.openAcceptChannel(ServerConnector.java:342)
      ... 8 common frames omitted
  </code></pre>
  
  <p>I know it is obvious but I tried to changing different port. It's still showing the same error, no matter which port I choose. Please help to take a look.</p>