how do I remove a host? It always comes back in the GUI

[fkraus]

Hi!

we're running zabbix Server 6.0.0beta3.

Although I removed a specific node already in the GUI, it still appears and always comes back again (is visible) after a few minutes ("Zabbix agent is not available")
How do I completely remove a node?

btw, the node is already shutdown, so it's not running anymore.
And I have ActiveCheck configured.

I do: Configuration> Hosts > select node > Delete button

Thanks.

[Damien_Dye]

you have auto registration setup and another agent running in active mode using the same name ?

[fkraus]

actually the agent is not running anymore, as I said, the node is already shutdown. But still it shows the node in the GUI with "Zabbix agent is not available" regarding that node

And yes, it's set up with auto-registration; and active mode.

But still, it's already shut down..

[tikkami]

What if some other agent is doing autoregistation with wrong hostname in it's configuration?

Look at the ip address of created host. Is that correct?

[fkraus]

that's nearly impossible. Because I have this behaviour with more than one node.
Each node I don't need anymore (eg. I stop the VM) shows up after a short while again with "Zabbix agent is not available".

Let me clarify this: if I want to remove a unused node from zabbix, is this theoretically the correct way? That's what I do:

Configuration> Hosts > select node > Delete button

-> it disappears from the monitoring dashboard. But comes back after a few minutes. I think zabbix still assumes the node should exist, it's saved under some configuration..., but where could I check?

[rootus]

-> it disappears from the monitoring dashboard. But comes back after a few minutes. I think zabbix still assumes the node should exist, it's saved under some configuration..., but where could I check?[/QUOTE]
same here.
Did you solve it?

[fkraus]

the problem is not relevant anymore, because I'm not using zabbix anymore

[vladimir_lv]

Check your Discovery action, probably you have some actions that based on some Discovery rule just add the host to Zabbix

[rootus]

Discovery data is still present.
You can delete it by:

{
echo "connect zabbix_db;"
echo "SET FOREIGN_KEY_CHECKS = 0;"
for table_name in dhosts dservices
do
echo "TRUNCATE table $table_name;"
done
echo "SET FOREIGN_KEY_CHECKS = 1;"
}| mysql --user=zabbix --password=myzabbixpasswd zabbix_db

And the host will stay away.