url-response probe error profile is delayed because it is already running

Document ID : KB000118735
Last Modified Date : 05/11/2018
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Periodically we are getting an alarm from url_response probe such as:
Profile <profileName> is delayed because it is already running

We have the interval set to 300 and the delay to 30 seconds.
Why are we getting this error?

UIM 9.x and ealier
url_response 4.43 and earlier
The formula for calculating the max time for a profile is:
<Number of Samples> X  <Numver of Retries> X <Timeout> = <Total Time a profile can take>
It is expected that the profile interval should be GREATER THAN the total time it takes a profile to finish.
The example where you would get this error
5 Samples X 3 Retries X 30 Second Timeout = 450 seconds.

If you have an interval set for 300 then you would get this alarm if the profile is unable to complete.

You should make sure the interval for the profile is less than the total time a profile needs to fail if you do not want to see this alarm.