I have created a URL monitor to check the availability of website.I kept all values as it is in monitor tab and added host( http://abcd.xyz.org ). I scheduled it for every 10 minutes in schedule tab. In Measure tab I put the Lower sever value of HostReachable measure to 0. I created incident , added HostReachable measure and put its Aggregation to last value. Evaluation time frame is 1 minutes.In Action tab I put my email for notification.
Now after every 10 minutes I started getting email even I browsed the website and it's working fine. Couldn't understand if website loading fine then why incidents occurs.
Email message: Violations HostReachable: STG URL [email protected]: Was 0.00 but should be higher than 0.00.
Latest logs given below: 2016-08-17 15:42:33 INFO [UrlMonitor@STG URL Monitor_0] Previous message was repeated 1 times. 2016-08-17 15:42:33 INFO [UrlMonitor@STG URL Monitor_0] Executing method: GET, URI: http://abcd.xyz.org:80/
Thanks
This could have to do with the evaluation timeframe of your Incident. If your monitor is scheduled to run every 10 minutes but your evaluation timeframe is 1 minute it means that you have 9 evaluations where there is "no data". We typically recommend to align the monitor execution with the Incident. Can you give that a try? Also - I typically chart these measures to see which values the monitor produces in which timeinterval. this is an easy visual verification check to make sure that e.g: the monitor works correctly and delivers data. Can you do that?
I also wanted to say that we have a very good Dynatrace Online Community and Discussion forum @ http://answers.dynatrace.com. You might want to try to post future questions there as there are 100k+ Dynatrace users active on that community
Andi