topic Re: Remote Windows host monitoring extension - excessive usage of Dynatrace resources in Extensions

Remote Windows host monitoring extension - number of posts to server

rastislav_danis — Tue, 22 Oct 2024 06:38:02 GMT

Hello

at customer we use Remote Windows host extension 1.3.12 running on seperate windows AG (latest version 1.299.33) monitoring 29 endpoints with just several feature sets (default, network intfcs, pagerfile metrics). So consumption of ddu is relatively low (3250/24h). Number of post requests from that AG (metric dsfm:active_gate.rest.request_count in self monitoring env) shows 336k requests/24h.

Other 2 AGs running with much higher volume extensions (f.e. MSSQL Server extension with 68k DDU/24h) produces much lower number of post requests (85k, 66k).

Can anybody confirm that this is normal situation, or Remote Windows Host extension is performing badly?

(i have edited this question, b/c original one was little bit misleading)

Re: Remote Windows host monitoring extension - excessive usage of Dynatrace resources

Peter_Youssef — Mon, 21 Oct 2024 11:47:59 GMT

Hello @rastislav_danis

Kindly check the EEC configurations

It's recommended to set the resources that will be allocated to AG from the total assigned server resources.
default-directories-windows

BR,

Peter.

Re: Remote Windows host monitoring extension - excessive usage of Dynatrace resources

rastislav_danis — Mon, 21 Oct 2024 11:55:28 GMT

Thanks for your info, but in this issue it's irrelevant. AG is already at High limits as all other AGs running extensions at this customer. I described issue in specific wmi data source based extension (Remote Windows Host Monitoring).

Re: Remote Windows host monitoring extension - excessive usage of Dynatrace resources

AntonioSousa — Mon, 21 Oct 2024 13:11:50 GMT

@rastislav_danis,

Some napkin calculations:

3.99M lines with 336K requests suggests more than 10 lines per request. This might be a good indicator, because sending several lines in the same request is better than sending a line per request.
Since it consumes 3250 DDUs, this would mean that only 3.25M lines were "licensed". This maybe related to a metric data point being sent more than once for the same minute (I have seen this in the past with WMI) or eventually lines with descriptions and not data.
For point #2 I would suggest scanning the metrics to see if someone has a count != 1 for each of the dimensions.

Re: Remote Windows host monitoring extension - excessive usage of Dynatrace resources

rastislav_danis — Mon, 21 Oct 2024 13:19:24 GMT

I suppose, that it's multiple sending of same metrics all the time. It's dynatrace created extension, so probably someone responsible should check this post. I had checked counts and it's 1 in all checked metrics with host/dimension split.

Re: Remote Windows host monitoring extension - number of posts to server

Mike_L — Wed, 18 Dec 2024 08:53:38 GMT

I wouldn't say that it's performing badly, the WMI data source is just more chatty than other data sources. If this is a problem, please open a support ticket.

Re: Remote Windows host monitoring extension - number of posts to server

rastislav_danis — Wed, 18 Dec 2024 08:57:03 GMT

Thanks, this is not issue anymore