Dynatrace Version: 18.104.22.16805
I have a group of agents that are sending application process unavailable (unexpected) warnings but there is never a warning that it went down, just that it is back up. I have alerts for both incident begin and end but as we can see most of them last for 0s, how is that possible?
We have seen some IIS issues on the servers recently with restarts due to errors but they are pretty generic. Is there any way for me to tell within Dynatrace if we would be causing issues within IIS for an App pool? Instrumentation has not changed for any of these agents since this issue started. This is happening on 3 different servers for the same app, all with IIS and it's worker process instrumented.
Answer by Florent D. ·
as the screenshot blacks out the agent names, I need to ask the following question:
if you have an agent called myAgent, are you seeing myAgent and myAgent (only 1 will show as up)?
If that's the case it means that IIS restarts the pool or the web site and dynatrace hasn't got enough time to unregister the previous incarnation of the process and believes they are 2 processes.
More info here:
If it is not the case, try to have a look at the collector(s) logs to see if there is any information that might help.
Dynatrace + Jboss Datagrid 2 Answers