"unable to connect" to java web application on glassfish 4 server using google cloud computing

Question

Problem:

when I try to load my java web applicaton that resides on a glassfish 4 server from a remote web browser, i get the "problem loading ..." "unable to connect" page showing up in my browser. I tried port 8080 and 4848, both with no success.

Additional details about the issue:

I have deployed a .war java web application to the context root "/".

I have one domain running.

mostly, i use command line only.

i am using debian jessie server on a google cloud computing virtual machine instance.

In the glassfish troubleshooting guide, I discovered that I had not set the PATH environment variable to the JDK/bin directory, so I properly set the PATH environment variable, yet it did not solve the issue.

Have you tried open the 8080 and 4848 ports for the firewall configuration in compute engine? http://stackoverflow.com/questions/21065922/how-to-open-a-specific-port-such-as-9090-in-google-compute-engine — Cesar Loachamin, Dec 20 '15 at 23:04
no. i have not tried that. i will first re-install glassfish, then if that didn't work, i will follow your link that explains how to open specific ports. — eeshwar das, Dec 20 '15 at 23:08
Did your server ever run? As in before you tried to deploy an app. — takendarkk, Dec 20 '15 at 23:09
@cesar: i configured the ports. It must have worked. Now I get a XML parsing error. I will fix the parsing error just to make sure everything is square. — eeshwar das, Dec 22 '15 at 18:20
yup. it was simply that the ports needed to be configured. duh! :) — eeshwar das, Dec 22 '15 at 22:41

score 1 · Answer 1 · edited May 23 '17 at 12:15

Solution:

Cesar has given the solution of opening up the ports 8080 and 4848 in the google cloud computing firewall configuration:

How to open a specific port such as 9090 in Google Compute Engine

I followed Cesar's link to get instructions on how to open up ports 8080 and 4848. The link led to instructions for an older version of google cloud computing's web console. To open the ports using the new GUI, first navigate to the Networking section, then navigate to firewalls ( i believe ).

score 1 · Answer 2 · answered Feb 10 '18 at 16:45

I faced the same problem, open required ports for the firewall, but still getting the same result: problem loading ...

I've noticed, that i tried opening https://xx.xx.xx.xx:4848 instead of http://xx.xx.xx.xx:4848. So i changed protocol to http and it works

"unable to connect" to java web application on glassfish 4 server using google cloud computing

2 Answers2