Cannot update trigger.

[Override]

Hi,
I have been breaking my head on this for a while now and I really don't see any logic in this problem.

I had to change the settings for a pretty standard trigger named "Too many processes running on {HOSTNAME}" but I can not edit it and save it, better yet when I open it, and without changing something, I immediately try to save it it also doesn't work, it only gives me ERROR: Cannot update trigger
Host key does not exist. Check expression part starting from ' roc.num[,,run].last(0)}>40 '

This check is in a Template but that's why I'm also editing the trigger in Templates»Configuration of triggers like I learned in the past.

Nothing is greyed-out so I know I'm on the right place... I also tested this on another template where this check is in and it gave me the same error.
Then I tested it on another zabbix server also in a template and there it did work. So something is different on this Zabbix Server.... but what?


Strange thing is, when I manually edit the check and remove the ",,run" part so in stead of "{Template-blah-Linuxroc.num[,,run].last(0)}>40" I use "{Template-blah-Linuxroc.num[].last(0)}>40" then I can save it but then as you probably know it triggers on all the processes instead of the running processes. And that's not what I want..


If anyone ever had a similar problem (and solved it) please let me know!
I really want to fix this stuff now that I'm still liking Zabbix...

[richlv]

you must have an item before referencing it in a trigger. so either create an item with those parameters, or edit the existing one.

[Override]

you must have an item before referencing it in a trigger. so either create an item with those parameters, or edit the existing one.

Thanx for your answer. But The item is there. The trigger works but I can't change it.

If I run the check from cli like :
# zabbix_get -s hostname -k proc.num[,,run].last\(0\)
or
# zabbix_get -s hostname -k proc.num[,,run].last

then it works fine... But if you think I missed something please tell me!

[richlv]

no, zabbix_get does not show you anything about items configured, you do that with the frontend

[Override]

no, zabbix_get does not show you anything about items configured, you do that with the frontend

I'm afraid you don't get my point.

For testing I just did a mysql dump and imported this on a test server, somehow I can immediately change the trigger without any problems.

So there must be a problem in the database I think but still it doesn't make sense.

[richlv]

hrm. in that case zabbix_get was not needed at all
is zabbix frontend at the same version on both systems ? maybe you just need latest version for this to work correctly