Actions: Send email only if processor load is high for a long time

[heathz]

hi people...
i'm trying to create an action to send me and e-mail if the processor load of my servers became high for a certain period of time because when i created the action to send me e-mail when processor load is high the Zabbix sends me an e-mail when the load is greater than 5.0 and in one of my servers this happens quite often... it goes 6.0 and than back to 4 all the time...

how to solve this?

[JBo]

Hi,

Could you show the expression you are currently using for your trigger ?

Regards,
JBo

[heathz]

the expression is:
{Template_Windows:system.cpu.load[,avg1].last(0)}>95

the default was 5 and i changed to 95...
but i want the zabbix to email me only if the processor stay consuming 95% for more than 5min...

[HullZabbix]

First off, for a windows system you really want to be using system.cpu.util rather than than system.cpu.load

So the following trigger will turn true if the average cpu utilisation is over 95% for 300 seconds

{Template_Windows:system.cpu.util[,,avg1].avg(300)}>95

[JBo]

Hi,

the expression is:
{Template_Windows:system.cpu.load[,avg1].last(0)}>95

the default was 5 and i changed to 95...
but i want the zabbix to email me only if the processor stay consuming 95% for more than 5min...

The formula would be:
{Template_Windows:system.cpu.load[,avg1].min(300)}>95

However, I think that you misunderstand what CPU load is.
It is defined in Zabbix documentation and points to Load (computing) in Wikipedia.

A CPU load of 1 means that there is an average of one runnable process (it uses 1 CPU core at 100%).
At 95, it means that you have 95 runnable processes; so, unless your system has at least 95 cores, it is heavily overloaded.

You should probably use system.cpu.util[] instead.

Hope this helps
JBo

[heathz]

JBo thanks for the explanation...

AxidaZabbix
got some errors like this:

Incorrect item key "Template_Windows:system.cpu.util[,avg1]" provided for trigger expression.

[HullZabbix]

In your template for windows machines, need an item which has a key like the following:

system.cpu.util[,,avg1]

Then you need to create a trigger which has the following expression:

{Template_Windows:system.cpu.util[,,avg1].avg(600)}>90

[JBo]

JBo thanks for the explanation...

AxidaZabbix
got some errors like this:

Incorrect item key "Template_Windows:system.cpu.util[,avg1]" provided for trigger expression.

There are 2 commas before avg1: system.cpu.util[,,avg1]

Time to read the doc ?

Regards,
JBo

[heathz]

sorry posted wrong code... but even with two commas the same error...

Incorrect item key "Template_Windows:system.cpu.util[,,avg1]" provided for trigger expression.

and, yes, i'm on the doc's page right now ^_^

[HullZabbix]

Can you screenshot you item and your trigger? Upload them to http://imgur.com/ and then paste the link here

[heathz]

here it is:

http://i.imgur.com/zEmNo.png

http://i.imgur.com/vTwKm.png

[JBo]

sorry posted wrong code... but even with two commas the same error...

Incorrect item key "Template_Windows:system.cpu.util[,,avg1]" provided for trigger expression.

and, yes, i'm on the doc's page right now ^_^

There is no system.cpu.util[,,avg1] item in Template_Windows.
Have you created an item with system.cpu.util[,,avg1] key before trying to change the trigger ?

[heathz]

just trying to change the trigger...

[HullZabbix]

As JBo says, make sure you have an item with the correct key.

As a note, you haven't taken a screen shot of your item :P you've done it of your triggers overview and individual trigger.

[heathz]

well... now i created an item and the trigger and still the same error...
I guess the shots are ok now:

http://i.imgur.com/SCRct.png

http://i.imgur.com/9LiaA.png

http://i.imgur.com/vrGkb.png