(v23) Fix Blank Visuals in the Home Page (for RPM Installations)

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

This applies to: Visual Data Discovery

Symptom

If you successfully installed the RPM version of Symphony and only see blank visuals on the dashboard, there may be a hostname mismatch in two specific Symphony 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 Symphony 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 Symphony, 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 Symphony 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 Symphony 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 Symphony to verify that the visuals are displaying in the gallery.

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