url_response probe delay alarm

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)
• Unified Infrastructure Management for Mainframe
• CA Unified Infrastructure Management SaaS (Nimsoft / UIM)

Issue/Introduction

When using NT authentication we are seeing a delayed alarm when the page is not available. The page down alarm seems to be preceded by this alarm.

When we get a 500 or 404 can an alarm be opened without delay?

Delay or re-try alarm

[SharePoint UAT Test] is already running 

Down alarm

URL response for 'SharePoint UAT Test' failed. 12002 The request has timed out.

We do not see this behavior in non NT authentication checks.

Environment

Release:  4.44-T1

Component : UIM - URL_RESPONSE

Cause

- url_response configuration setting ->Retries before failure

Resolution

Monitoring interval was set to 180 seconds (3 minutes) and Retries before failure was set to 1 so it was taking about 4 minutes to see the alarm appear. 3 minutes + 1 minute (based on the retry setting).

Once we set the retries to 0, the alarm was received on time as expected.

url_response:

Retries before failure:

Specifies the number of attempts to access the URL before reporting it as a failure. These retries are executed within a single check interval. For example, if the Check interval is set to 300 seconds and Retries before failure is set to 3, then, the probe executes all the 3 retries in 300 seconds and generates an alarm, on failure.

Default: 3

Additional Information

https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/ca-unified-infrastructure-management-probes/GA/alphabetical-probe-articles/url-response-url-endpoint-response-monitoring/url-response-im-configuration.html