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How do i set alert for checking CPU usage in average for 5min period?
Because now i can only seem to create a alert that triggers when the CPU usage reachs above 80%
But i want to activate the alert when the average CPU usage in the past 5mins reachs 80% or above
Anyone can teach me where to check documents/How to do it?
Thank you
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7 Replies
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Hello Albert,
It will depend on the Interval of the Agent you have configured. If you have a 5 minutes interval set on the Agent you will have to use the FF Threshold of the module, but you will not be able to actually know if the module was +80% all the 5 minutes interval as you will only check its load every 5 minutes.
But with the FF Threshold you can determine that in the first check of the module if it is over 80% you don’t want to trigger a critical nor any alarms yet, but if in the second interval the module is being checked it is still over 80% then you trigger the module to critical and start the alarm.
Basically you will need to set is what you can see in the picture attached below.
This is the most straight forward way to perform something similar of what you want.
Here’s everything you need to know about the FF Threshold of the alert and how to configure it:
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Hello Albert,
That would be an option, but bear in mind that this may overload the server if your agent has many modules to monitorize, or if the server has many agents configured this way, so in case it does not, that would definetly be an option.
If you do have the Agent with a 1 minute interval, instead of having the FF Threshold set to 2, you will need to set it to 5 or 4, in order to skip the 4-5 minutes interval you need.
BUT, if the module goes under the 80% in any of those checks the counter will restart to 0, so once again it will need all 4-5 checks to be over 80% to go into critical state and raise the alarm.
Kind regards,
Sergio B.
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Thanks for your reply, so what happens if two spikes happens within the two 5mins ff threshold?
What i understand is it performs 1 checks per 5mins interval according to agents for 2 ff threshold
And fires the alarm if the in the two checks the CPU is over 80%
Is there a better method of doing this? Like checking average value of CPU in module? Or is this the only way
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Hello Albert,
In this case this is the only way to check it. As the Agent is not providing live information on the CPU there is no other way than to simplify it with 1 minute.
There is another option to not overload the Agent and just leave this specific module with a 1 minute interval which is establishing the Agent in a 1 minute interval and then you can add a module_interval 5 in all the rest of the modules of the Agent except this one.
What this will do is have the Agent in 1 minute interval and use that interval only for the CPU Load module, leaving all the rest of the modules with the module_interval 5 which multiplies the Agent interval for the value you pass on, in this case 5, so the modules will not receive any data nor changes for the whole 5 minutes, leaving them with a “normal” interval.
Although if you have hundreds of modules inside that Agent it will be tedious to change each single module to use the module_interval 5 .
Kind regards,
Sergio B.
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Hello,
If you configure 2 warning and 2 critical it will trigger the warning / critical state when any of those conditions come true.
If the module goes warning 2 times in a row, it will trigger the Warning state, if the module goes Critical 2 times in a row, it will trigger the Critical state.
If the module goes Warning and then Critical or viceversa, again, the counter resets, as it needs to happen 2 times in a row to change its state
Kind regards,
Sergio B.
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