Fix Blank Visuals in the Home Page (for RPM Installations)

Symptom

If you successfully installed the RPM version of Composer and only see blank visuals on the dashboard, there may be a hostname mismatch in two specific Composer files: /etc/sysconfig/network and /etc/hosts.

Possible Cause

In the file /etc/sysconfig/network, the following setting is needed:

HOSTNAME=<servername>

Substitute any alphanumeric hostname for <servername>.

In the file /etc/hosts, the following should be listed:

<your_server_IP> <servername>        

Substitute the IP address and hostname of your Composer instance for <your_server_IP> and <servername>.

Resolution

To resolve this issue, open the two files and verify that the hostname references in both files match.

• If the hostname reference does not exist in the /etc/sysconfig/network file, then it must be added. The name must match the name in the /etc/hosts file.
• If the hostname reference exists in both files, then one of the references must be revised to match the other.

To correct this error:

1. Log out of Composer, if you are still in the program and close the browser.

2. From your terminal, open a command line session.

3. Change to the zoomdata directory. See Configure Composer if you need guidance.

4. Edit the file /etc/sysconfig/network. Search for the term HOSTNAME. If the term is not in the file, add the following line:

   HOSTNAME=<servername>

   Substitute any alphanumeric hostname for <servername>.

   Save the file.

5. Edit the file /etc/hosts. Find or add the following line in the file.

   <your_server_IP> <servername>        

   Substitute the IP address and hostname of your Composer instance for <your_server_IP> and <servername>. Verify that the <servername> specified in the /etc/hosts file matches the <servername> in the /etc/sysconfig/networkfile.

   Save the file.

6. Open a new browser session and log back into Composer to verify that the visuals are displaying in the gallery.

If this solution did not resolve the problem, contact Composer Technical Support.