Zammad webpage in Firefox only displayed after hitting F5

Technical assistance
1

Infos:

  • Used Zammad version: 3.1.x
  • Used Zammad installation source: (source, package, …) Zammad Community Edition
  • Operating system: Ubunbtu Server 18.04 LTS
  • Browser + version: Firefox 67.0.4 (64-Bit) under Windows 10

Expected behavior:

Actual behavior:

  • A grey blank page is displayed
  • If I hit F5 (refresh), the dashboard is displayed.

Steps to reproduce the behavior:

  • Open Firefox Browser (same behavior with Google Chrome and M$ Edge)
  • Enter URL to local zammad server in address bar and press Enter.
2

Open your browser dev tools, navigate to your Zammad instance, and then check especially the console and the network tab. Are there any obvious error messages? I suspect that there might be an issue when it attempts to load application.js.

3

Thank you for the quick response.

XHR POST http://vm-sanangelo.dpv-elektronik.de/api/v1/signshow is very slow.
It takes 14256 ms. See attached screenshot from browser developer tools.

It seems that this long duration occures only after some idle time.

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After the dashboard is shown, the page reacts quickly. So I don’t think its a hardware bottleneck.
The ubuntu server runs as VM in a local Nutanix cluster.

4

Could you please share the hardware specifications of your machine?
Also how many agents are using this installation concurrent?

If signshow takes 15 seconds to do stuff, you have a bottleneck somewhere between you and your server or on the server. Zammad can react very slow depending on what the current situation on the machine is (for several reasons)

5

The VM has 1 vCPU and 2 GB RAM assigned.
We’re using the Nutanix Acropolis Hypervisor (based on KVM)
We have 2-3 concurrent agents (only LAN).
My client computer is on the same site. LAN connection is 1 GBit/s.

Performance VM:

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Nutanix Host Hardware is Dell XC430 with Xeon E5-2630v4 CPUs. 188 GB RAM.
Storage system is hyperconverged with SDDs and HDDs.

Performance Host System:

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6

2 GB RAM is most probably not enough. The hardware requirements say:

  • 4 GB of RAM (+4 GB if you want to run Elasticsearch on the same server)
7

OK, then I will assign more RAM.

Thank you so much.

8

Adding more RAM worked like a chram.
Problem solved.

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9

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