Active agent doesn't allow systemd?

[panoramix]

I have a host configured with agent2 in passive mode. It works great, but I'm migrating the server and running in active mode. I can't seem to get Systemd by Zabbix agent 2 working in active mode. Other data is showing up fine in active mode. I can even allow active & passive mode to be running (to seperate servers). What is going on? I can't seem to find any documentation or information that leads me to an answer, just a few error messages to chase.

Errors Ive found:

• Cannot find host interface on "host" for item key "systemd.unit.discovery[service]".
  • This occurs when I don't have a interface value for a active agent even though other data is showing up.
• Discovery rule "Zabbix server:systemd.unit.discovery[service]" became not supported: Unsupported item key.
  • This occurs when I add a ip to interface field and then it lets me add "Systemd by Zabbix agent 2" template to host. But the data never shows up.

Any ideas? My gut feeling is that somehow systemd is not supported in active mode?

[studero]

I have a host configured with agent2 in passive mode. It works great, but I'm migrating the server and running in active mode. I can't seem to get Systemd by Zabbix agent 2 working in active mode. Other data is showing up fine in active mode. I can even allow active & passive mode to be running (to seperate servers). What is going on? I can't seem to find any documentation or information that leads me to an answer, just a few error messages to chase.

Errors Ive found:

• Cannot find host interface on "host" for item key "systemd.unit.discovery[service]".
  • This occurs when I don't have a interface value for a active agent even though other data is showing up.
• Discovery rule "Zabbix server:systemd.unit.discovery[service]" became not supported: Unsupported item key.
  • This occurs when I add a ip to interface field and then it lets me add "Systemd by Zabbix agent 2" template to host. But the data never shows up.

Any ideas? My gut feeling is that somehow systemd is not supported in active mode?

Hi panoramix,

I have the same problem with Linux 11 (Bullseye). But it's run correctly with RedHat 8.8 and 9.2. What is you Linux version ? Do you have found a solution ?

[dimir]

Can you go to the host configuration and check. it's discovery rule Service units discovery? Is there any error in the Info column?

[studero]

Can you go to the host configuration and check. it's discovery rule Service units discovery? Is there any error in the Info column?

Yes, they are an error. This is "Unsupported item key."

[dimir]

You are saying you are migrating the server, did you also upgrade it? Does it work in passive mode (you can test the passive mode by running

zabbix_get [...] -t systemd.unit.discovery

[studero]

You are saying you are migrating the server, did you also upgrade it? Does it work in passive mode (you can test the passive mode by running

zabbix_get [...] -t systemd.unit.discovery

I need help to use this commande. Like this ?

# zabbix_get -s name_of_client -k systemd.unit.discovery
zabbix_get [1078238]: Timeout while executing operation

But I have a timeout.

I have run a test another server. But its works. May be I have a problem with the configuration of the firewall. I will check

[studero]

You are saying you are migrating the server, did you also upgrade it? Does it work in passive mode (you can test the passive mode by running

zabbix_get [...] -t systemd.unit.discovery

Hi,

After open the firewall on the client, the commande
# zabbix_get -s name_of_client -k systemd.unit.discovery

give a good output.

And reconfigure the client on the Zabbix console. That's work good.

[Skydrex]

Hi,

After open the firewall on the client, the commande
# zabbix_get -s name_of_client -k systemd.unit.discovery

give a good output.

And reconfigure the client on the Zabbix console. That's work good.

Why did you do that?
The whole point of Agent Active is to push data to the server, so you don't have to configure firewall for incoming connections to the client host.

When you opened the firewall on the client - Passive checks became available and it worked, but not in Active Mode.

I am facing the same issue, other active checks is okay, but Systemd by Zabbix agent 2 is just refuses to work

[z0nk]

Why did you do that?
The whole point of Agent Active is to push data to the server, so you don't have to configure firewall for incoming connections to the client host.

When you opened the firewall on the client - Passive checks became available and it worked, but not in Active Mode.

I am facing the same issue, other active checks is okay, but Systemd by Zabbix agent 2 is just refuses to work

Exactly. I have the same problem and I have to use active mode which doesn't work.

[troffasky]

Why did you do that?

Is there any equivalent to "zabbix_get" for active items? I don't believe there is. So when you are trying to troubleshoot a specific item key, just testing in passive mode is the most straightforward thing to do.

[z0nk]

Is there any equivalent to "zabbix_get" for active items? I don't believe there is. So when you are trying to troubleshoot a specific item key, just testing in passive mode is the most straightforward thing to do.

But how, when there is no routing to do it passively from the WAN interface to servers in LAN...

[z0nk]

zabbix_agent2 -t systemd.unit.discovery

works on my host, why I am not geting that information on main server/web GUI? I have active monitoring

[troffasky]

How are items configured on template? Factory template "Systemd by Zabbix agent 2" has discovery item type of "Zabbix agent" not "Zabbix agent (active)". So if your agents are active-only then you will need to have an active mode copy of this template.
I tested it on a passive agent running Agent2 and it just like Windows services discovery - tens of services "not running" triggers about services that are probably irrelevant :d. Don't think I will be rolling this out everywhere just yet.

[z0nk]

How are items configured on template? Factory template "Systemd by Zabbix agent 2" has discovery item type of "Zabbix agent" not "Zabbix agent (active)". So if your agents are active-only then you will need to have an active mode copy of this template.
I tested it on a passive agent running Agent2 and it just like Windows services discovery - tens of services "not running" triggers about services that are probably irrelevant :d. Don't think I will be rolling this out everywhere just yet.

omg... can you help me configure this?

So if your agents are active-only then you will need to have an active mode copy of this template.

this is so hard for new users to deal with it. Zabbix looks like some new software with new born problems...

I know how do copy of template, but where is "active mode"?

tens of services "not running" triggers about services that are probably irrelevant

There is option for select/ignore in macros, but don't ask me how use it :-)

[troffasky]

I know how do copy of template, but where is "active mode"?

It's per-item, per discovery item and per item prototype. You have to change every one, or it will behave in unexpected ways!

Is there any equivalent to "zabbix_get" for active items? I don't believe there is

zabbix_agent2 -t systemd.unit.discovery

OK, so there is, then