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Updated Common Issues (markdown)

Jeremy Stretch 2020-01-30 09:20:42 -05:00
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Common-Issues.md

@ -1,5 +1,6 @@
* [ProgrammingError Exception Following a Recent Upgrade](#programmingerror-exception-following-a-recent-upgrade)
* [502 Bad Gateway Error When Calling NAPALM API](#502-bad-gateway-error-when-calling-napalm-api)
* [Rack Elevations Do Not Display](#rack-elevations-do-not-display-v2.7)
## ProgrammingError Exception Following a Recent Upgrade
@ -20,3 +21,15 @@ NetBox is using NAPALM to request information from a device, but the WSGI proces
### Recommended Solution
You can increase the timeout of the WSGI process so that it waits longer for the device to respond. For example, you can set `timeout=60` in your Gunicorn configuration file. (Gunicorn's default timeout is 30 seconds.) Keep in mind that there's also a timeout value controlled by your HTTP daemon (e.g. nginx or Apache), which determines how long it will wait for a response from the WSGI service. This timeout must be equal to or greater than the WSGI timeout.
## Rack Elevations Do Not Display (v2.7+)
### What's Happening
NetBox makes two requests to its REST API to render the front and rear elevations of a rack. You can try fetching these SVG images directly by requesting `/api/dcim/racks/XXX/elevation/?render=svg`, where XXX is the rack's database ID.
If the direct API call is successful but the images don't appear on the rack page, it's likely that your HTTP server is setting the `X-Frame-Options` header to `DENY`. You can inspect the headers of the response by opening your browser's developer tools (F12 in Firefox/Chrome) and inspecting the initial request for the rack page. `X-Frame-Options` should be set to `SAMEORIGIN`.
### Recommended Solution
Inspect the configuration of your HTTP daemon (e.g. nginx or Apache) and remove any statements which statically set the `X-Frame-Options` header.