Qlik Enterprise Manager Analytics tab fails to open: SYS-E-JSERVNAVAIL, Java service 'AnalyticsCtlClient' not yet available

[avidary_qlik]

Opening the Qlik Enterprise Manager Analytics tab fails with the following error:

SYS-E-JSERVNAVAIL, Java service 'AnalyticsCtlClient' not yet available 
SYS,JAVA_SERVICE_NOT_AVAILABLE,AnalyticsCtlClient(statusCode: 500

Reviewing the service log files indicates:

Failed to start jetty server. Failed to bind to /127.0.0.1:3102

Resolution

A simple reboot of the server running the Qlik Enterprise Manager may resolve the issue. If the issue persists after a reboot, the process occupying port 3102 may need to be killed manually. 

1. Open the Windows Services Console
2. Stop the Qlik Enterprise Manager service
3. Open a Windows Command line (as administrator)
4. Run netstat to locate what is currently occupying port 3102:
         netstat -aon | findstr :3102
5. Find the PID of the occupying process:
     tasklist | findstr PID
6. Terminate the process occupying the port:
     taskkill /F /PID <PID>
7. Run the command again to verify if the port is now free:
     netstat -aon | findstr :3102
8. Monitor the port. If the process returns, investigate what program it is and uninstall/reconfigure it accordingly to not longer use the port the Qlik Enterprise Manager requires. 
9. Start the Qlik Enterprise Manager Service

Cause

It's possible that this issue occurred during a Windows automatic update, which sometimes leaves the machine in a pending reboot state.