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Alert & Graph not same.
Posted: Sun Mar 08, 2020 11:31 pm
by safuanmansor
Hi Support team,
Recently we have receive an alert stating that the CPU utilization is at 94% but upon checking with the performance graph, the value are not same.
Alert Message
_______________
**PROBLEM Service Alert:
<hostname removed>:CPU Usage 1min is WARNING**
Date:Sat Mar 7 18:32:20 08 2020
Additional Info:
WARNING: CPU Usage = 94%
cpuusage.jpeg
cpuusage.jpeg
Is it something wrong with my graph setting, plugin or anything.
Your help are much appreciated.
Regards,
Safuan
Re: Alert & Graph not same.
Posted: Mon Mar 09, 2020 8:32 am
by scottwilkerson
You are looking at 7 day graph which will consolidate and average data points. On a 24 hour graph the peak may have been higher
Re: Alert & Graph not same.
Posted: Mon Mar 09, 2020 8:53 pm
by safuanmansor
Correct me if i'm wrong, only for 24 hour graph will have the actual value of check/notification because of the way RRD database do the averaging.
If that's the case, is there any way or workaround so that we can always have the actual value always being populated on the graph?
We have situation where the incident manager highly dependent on nagios xi graph to review the report (normally received 2/3 days after the incident resolved).
Thanks.
Re: Alert & Graph not same.
Posted: Tue Mar 10, 2020 9:00 am
by scottwilkerson
safuanmansor wrote:Correct me if i'm wrong, only for 24 hour graph will have the actual value of check/notification because of the way RRD database do the averaging.
this is correct
safuanmansor wrote:If that's the case, is there any way or workaround so that we can always have the actual value always being populated on the graph?
We have situation where the incident manager highly dependent on nagios xi graph to review the report (normally received 2/3 days after the incident resolved).
the only way to change the graphing would be to modify the rra.cfg, delete all existing graphs and recreate them
Modifying the rra.cfg is described below, but, be sure you read the whole article as changes will significantly increase the size of the rrd files and disk space used on the system
https://support.nagios.com/kb/article/n ... g-768.html
Re: Alert & Graph not same.
Posted: Thu Mar 12, 2020 3:26 am
by safuanmansor
Thanks for the support scottwilkerson.
You may clone this topic
Re: Alert & Graph not same.
Posted: Thu Mar 12, 2020 6:25 am
by scottwilkerson
safuanmansor wrote:Thanks for the support scottwilkerson.
You may clone this topic
Great!
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