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Question by Jared K. · Mar 28, 2016 at 02:11 PM · dashboard configuration agent server diagnostics iis

Memory generation dashboards/measures are empty

In the past I was able to see the data below but at some point in time I no longer pull the below information for any servers. I get transactions, GC caused suspension time, CPU usage etc but all process overviews on the application side show no data for the below dashlets. There is also no data if I try to manually add the measures behind these to dashboards. I am using 6.3 with a mix of 6.1 and 6.3 agents, neither of which show data. These are all IIS app pools I am monitoring and their work processes.

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Answer by Michel H. · Nov 26, 2018 at 11:13 AM

We run into the same situation. First we saw no counters at all. With adding the right permissions we managed to see as much as you describe above.

To get the counters for the memory we had to configure them first on windows server:

lodctr C:\Windows\Inf\.NETFramework\corperfmonsymbols.ini

After restarting the services we got all the counters.

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Answer by Joe H. · Mar 30, 2016 at 10:24 PM

I would restart the processes being monitored. IIS RESET and see if that clears up the problem.

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avatar image Andreas G. ♦ · Apr 04, 2016 at 11:49 PM 0
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Besides IISRESET you could also try restarting a single AppPool first and see if that already solves the problem. that is a bit more lightweight then restarting the whole web server. If that doesnt help I agree with Joe though

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Answer by Andreas G. · Mar 29, 2016 at 09:22 PM

The problem most likely is a permission issue of the windows user that runs your .net process. In order for us to get this data we need to access windows performance metrics. The User that runs that process needs to be in the windows group "Performance Monitor Users". Here is another discussion that talks about this: https://answers.dynatrace.com/questions/107530/windows-performance-monitor.html

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avatar image Jared K. · Mar 30, 2016 at 12:40 PM 0
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Are there any services that need restarted when I do this? For one server in particular the account was already in the admins group but I added him to monitoring anyways but still no measurements pulled.

Im getting other information like cpu usage, thread count, gc suspension time etc This includes all the main host information, just not specifically the heap information for servers.

avatar image Jared K. · Apr 07, 2016 at 03:54 PM 0
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Thanks, I think this is actually user error on my behalf. I checked that the service account was in all the security groups but did not realize when we upgraded our server that the services on our collectors and servers were not set to run as the service account. I am going to get that updated and hopefully that resolves the issue.

avatar image Jared K. · Apr 11, 2016 at 04:22 PM 0
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I corrected the services on my collectors and servers to be the correct service account and added them into the performance monitor groups on each server just in case but I still pull no data. What logs would tell me if there is an access for connection issue for these types of metrics? Should I open a support ticket on this?

avatar image Andreas G. ♦ Jared K. · Apr 11, 2016 at 06:03 PM 0
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In the agent logs you should see an indication if there were any problems accessing the performance counters. should be log entries during the startup phase of the agent

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Answer by Joe H. · Mar 28, 2016 at 03:03 PM

Is there anything in the agent logs indicating an inability to get certain data?

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avatar image Jared K. · Mar 28, 2016 at 03:11 PM 0
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Nothing that stood out to me, though I am not sure where all I would want to look to check on this. I've looked through system information>connected systems>individual agents log files but nothing obvious seemed to jump out to me.

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