How can i fet PXF Agent to wrok correctly?

[#1]

I have 4 node cluster with ambari deployed, a while ago i try to add PXF and Hawq, in 3 of the 4 nodes everything installed and successfully, but in one of the nodes fails to run PXF Agent because it cant detect tomcat, which is insalled along PXF Agent. I already tried to start it manually but the result is the same.

When i try to start pxf it gives the following error, until it ends up failing:

SEVERE: No shutdown port configured. Shut down server through OS signal. Server not shut down.
The stop command failed. Attempting to signal the process to stop through OS signal.
Tomcat stopped. /
/var/pxf /
Tomcat started.
/
Checking if tomcat is up and running...
tomcat not responding, re-trying after 1 second (attempt number 1)
tomcat not responding, re-trying after 1 second (attempt number 2)
tomcat not responding, re-trying after 1 second (attempt number 3)
tomcat not responding, re-trying after 1 second (attempt number 4)
tomcat not responding, re-trying after 1 second (attempt number 5)

CAn anyone provide some help on this problem?

[#2]

It looks like something is running on port 51200 that is blocking PXFwebapp. You may try using:

netstat -plan | grep 51200