Network traffic with no data, no graph

[hjklfperson]

Hello Zabbixians,

since version 6.0.15, we no longer get network traffic displayed via graph.

Currently we are using:

- zabbix_server 6.0.21
- zabbix_agent2 6.0.19, 6.0.20, 6.0.21
- zabbix_proxy 6.0.19

The problem is that my network graphs are empty. It shows '[no data]'. But when I select the host and test the corresponding item property, I get values back. I assume that this actually works, but it is due to a setting.

Lastly, I added a new Template OS Linux https://git.zabbix.com/projects/ZBX/...ds%2Frelease%2 F6.0, I assigned this template to my host.

For example, the new template contains, among other things, the discovery rule 'Block devices discovery', which contains the item prototype '{#DEVNAME}: Get stats: {#DEVNAME}: Disk read time (rate)'. If I now look under Monitoring > Latest Data, I can see exactly this item with values and graphs.

If I now look in the discovery rule 'Network interface discovery' with the item 'Interface {#IFNAME}: Bits received', which is in the same template, under Monitoring > Latest Data, it is there but it has no content. The graph is empty. But when I test this item, I get back normal values.


I would appreciate your help very much. If you need further information I will be happy to provide it. And as a small note, I'm just getting to grips with Zabbix, so don't take offence if I'm being a bit silly

[hjklfperson]

I still haven't found a solution to this problem, I would appreciate any help.

[vijayk]

Hi,

As I understand the Network graph is not showing in dashboard Am I right? If yes, have you tried with another host? Does it works?
Have you recently upgrade the Zabbix server?

[hjklfperson]

Yes, the graphs that are to be displayed by 'Network interface discovery' contain 'no data'. I have some hosts, all have the template 'Template OS Linux' assigned. With none of them it works, with one of the hosts I added a newer template 'Linux by Zabbix agent' but that didn't solve the problem either. I have the problem since version 6.0.14 (or 6.0.15) and yes we update every month.

[vijayk]

Can you please share the screenshot of current graph and value you received in latest data?

[hjklfperson]

We have had this problem for a few months now. Unfortunately, the latest data is displayed as 'No data found. The screenshots are from a host that uses the 'Template OS Linux' with the 'Network interface discovery'. When I test an item of it, I get data, which you can see in the other screenshot.

However, I also have the same behaviour with the one host to which I have assigned the 'Linux by Zabbix agent' (https://shorturl.at/npstF) template for testing purposes.

[234233214]

hjklfperson vijayk we're also having the same issue. have you guys found a fix for this?

[vijayk]

hjklfperson vijayk we're also having the same issue. have you guys found a fix for this?

Not sure if hjklfperson found the solution. Did you tried with clear the history and re-fetch the data? You may check the logs as well if found something.

[234233214]

vijayk I didn't want to clear the history. I was running zabbix-server-pgsql version 6.0.24. I upgraded to 6.0.26 and that fixed the issue. I can see the network metrics now.

[vijayk]

vijayk I didn't want to clear the history. I was running zabbix-server-pgsql version 6.0.24. I upgraded to 6.0.26 and that fixed the issue. I can see the network metrics now.

That's great and nice to hear that your issue is resolved.