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F5 extension alerts

Theodore_x86
Helper

Hello.

We have deployed the F5 BIG-IP extension and we enabled the relevant extension alerts.

Since the alerts are based on metrics like this one:

com.dynatrace.extension.f5.bigip.virtualserver.state

General state metric for the server. Value is always 1, but dimensions carry all details of a virtual server.

 

and the alerting condition is above threshold of 0, then the problem remains open indefinitely.

Has anyone ever wondered what is the meaning of such alert configuration?

Thank you.

 

2 REPLIES 2

p_devulapalli
Champion

@Theodore_x86 Form my understanding virtual server state would not always remain 1 , it would switch between different states as below depending on the condition . Usually  green(1) is considered available and anything that's not green(1) is being considered as unhealthy . My assumption is that in Dynatrace = green(1) would be the threshold for healthy and any state other than green(1) is unhealthy

 

 F5-BIGIP-LOCAL-MIB::ltmVsStatusAvailState."/Common/VS_TEST"
    ltmVsStatusAvailState OBJECT-TYPE
      -- FROM       F5-BIGIP-LOCAL-MIB
      SYNTAX        INTEGER {none(0), green(1), yellow(2), red(3), blue(4), gray(5)}
      MAX-ACCESS    read-only
      STATUS        current
      DESCRIPTION   "The availability of the specified virtual server indicated in color.
                    none - error;
                    green - available in some capacity;
                    yellow - not currently available;
                    red - not available;
                    blue - availability is unknown;
                    gray - unlicensed."

 

Phani Devulapalli

Fin_Ubels
Dynatrace Champion
Dynatrace Champion

Hey @Theodore_x86 

I just went and had a look at one of these alerts in an environment and the one I found using that metric was filtered for undesirable states as seen below and so it should only remain open while the state is undesirable and not indefinitely. If the state was green then it shouldn't alert. I also tried adding the extension to a different environment and found the same filtering in place on the alert.

Fin_Ubels_0-1738647374812.png

Do you have a specific example of an alert using that metric but without filters? Could it be that the alert was modified or the extension is out of date?

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