Ping monitor in ASM

Products

• CA Application Performance Management SaaS

Issue/Introduction

Ping monitors in ASM are showing "Green" even if the machine is down or the ping is unsuccessful.

Ping monitors under OPMS Ping Check folder.

 

Cause

The monitors in the 'OPMS ping' folder are set up to run on an OPMS, with a target hostname of that same OPMS. Effectively this means the OPMS pings it's own localhost address. 

 

The aim is to have a monitor that reports an error if the OPMS is down. 

 

But the current setup will not work as expected.

 

if the monitoring station is down, only an internal error is produced, which cannot generate any alert by design.

 

 

Environment

Release : ASM 

Component : APM SAAS ENTERPRISE

Resolution

 Set up a HTTPS monitor that runs on any public station and points to an internal API endpoint of the OPMS machine.

 

If the OPMS is down (not connected to ASM), the endpoint will return a 404 and the monitor will produce an error.

 

The URL of the monitored endpoint is built as follows:

 

https://test.asm.ca.com/oppop/<tunnel_id>/<hostname>/api/status/system