Using 'AND' with DM

[kluss0]

I have three systems set up as child nodes to a central master node. I have set up triggers on all of the child nodes, and actions on the master node. If I set up an action based on a trigger from each child, the action is executed three times because of the AND/OR condition, and three e-mails are sent. If I set the condition to AND, so that the action requires all three triggers, the action is never executed. Am I missing something?

Thanks,
Kenny

[untergeek]

Please provide your Action's configuration here so we can see it better.

If I am interpreting your question correctly, you have 3 triggers, 1 each on 3 different hosts:

A
B
C

And you want to have the trigger fire when all 3 conditions are true, but not when only 1 or 2 conditions are true.

A & B & C

But when you use "AND" it doesn't work correctly?

If this is what you're trying to do, it may not be possible using Actions. You would likely have to have a single host collecting data from the 3 remotes and then have a single trigger for those 3 items being true. You could also create this single item with your AND tests, though I am not certain that Zabbix will allow triggers to span multiple hosts.

Am I understanding your problem correctly?

[kluss0]

I have three triggers set up, one on each of the three child nodes, A, B and C. The triggers are sent to a central node, D, where the actions are executed from.

A B C
\ | /
D


So, each box checks a host named tripleTest with a web check, and each box has a trigger named tripleTrigger defined as:

{trippleTest:web.test.fail[triplePing].sum(#10)}>4

So, if the web check fails 4 out of 10 times, the trigger is set. I see the trigger value set to "Problem" on D for all three nodes when I block http. However, the action is not exectued, and the no e-mail is sent.

If I set the "type of calculation" to AND/OR, then I get three e-mails, one for each nodes trigger.

Thanks,
Kenny

[untergeek]

Rather than use Action conditions, make a single trigger with all three server conditions. One trigger, one action, one message.

[kluss0]

Unter,

That is a great idea, and it would probably work, except that it doesn't. There is apparently a bug in the interface in 1.8.3 and the 1.8.4rc* that produces a php error when you select hosts other than the master node:

* reset() [<a href='function.reset'>function.reset</a>]: Passed variable is not an array or object[/var/www/html/8.4-zen/popup_trexpr.php:313]
* Undefined index: description[/var/www/html/8.4-zen/include/items.inc.php:1129]

I have already opened a bug report. Thanks for the tip, thought!

Thanks,
Kenny

[untergeek]

Does it do that when you manually type in the trigger definition or only when you try to use the GUI to find the items to define the trigger?

[kluss0]

I have tried typing in the trigger, but the syntax doesn't seem to exist. I tried:

{NODE01:HOST01:web.test.fail[HOST01 Web Access].sum(#10)}>4

and I get:

X Host key does not exist. Check expression part starting from ' :Host01:web.test.fail[HOST01 Web Access].sum(#10)}>4 '

X Not allowed symbols or sequence of symbols in expression element detected: Check expression part starting from ' HOST01:web.test.fail[HOST01 Web Access].sum(#10)}>4 '

Is there a correct syntax to do node, host, test?

Thanks,
Kenny