topic Re: How to filter the service request with a particular request name? in DQL

How to filter the service request with a particular request name?

Hillman — Mon, 06 Jul 2026 08:14:37 GMT

We have a process group which include a bunch of process. The processes are started but only 1 of them is the active process and would initiate a particular web request. The other processes are standby and will not trigger that web request.

I try to count the number of that request to detect if there are less than 1 or more than 1 request being triggered. If yes, alerts will be triggered.

In the past I can use Calculated Service Metrics to achieve this:

However, in the DQL, I cannot find any dimension like "Request Name". Is there any way I can achieve that?

Re: How to filter the service request with a particular request name?

t_pawlak — Mon, 06 Jul 2026 09:21:25 GMT

Hi,
in DQL the equivalent of Request Name is usually endpoint.name for the new dt.service.request.* metrics.

try this:

timeseries requests = sum(dt.service.request.count), by: { dt.entity.service, endpoint.name } | filter dt.entity.service == "SERVICE-9C186B48B0905E85" | filter endpoint.name == "oteldemo.CurrencyService.Convert"

Re: How to filter the service request with a particular request name?

Hillman — Mon, 06 Jul 2026 09:44:12 GMT

@t_pawlak hmm...it is weird that when I try to query for the endpoint.name, all it returns are "NON_KEY_REQUESTS" instead of the "Request Name"

Re: How to filter the service request with a particular request name?

t_pawlak — Mon, 06 Jul 2026 09:52:50 GMT

Show me your DQL, please

Re: How to filter the service request with a particular request name?

Hillman — Mon, 06 Jul 2026 09:56:17 GMT

The DQL is as follow:

timeseries { sum(dt.service.request.count), value.A = avg(dt.service.request.count, scalar: true) }, by: { dt.entity.process_group, endpoint.name } | filter: { matchesValue(entityAttr(dt.entity.process_group, "entity.name"), "*<process_group_name>") } | fieldsAdd dt.entity.process_group.name = entityName(dt.entity.process_group)

where <process_group_name> is the name of our process group

Re: How to filter the service request with a particular request name?

Naveenkumar_D — Mon, 06 Jul 2026 10:00:47 GMT

@Hillman The reason is previously, only manually configured key requests got individual metrics, while everything else was aggregated into a single NON_KEY_REQUEST bucket.

Enhanced endpoints eliminates that limitation.
Check out this doc, You can also see @t_pawlak another post reply here

Re: How to filter the service request with a particular request name?

t_pawlak — Mon, 06 Jul 2026 10:09:29 GMT

Hi,
@Naveenkumar_Dalready explained why this happens.
But if endpoint.name is being aggregated as NON_KEY_REQUESTS in dt.service.request.count, you could try querying the spans instead of the metric. Spans expose the individual requests/endpoints rather than the aggregated metric.

try this:

fetch spans | filter matchesValue(entityName(dt.entity.process_group), "*nginx*") | filter contains(endpoint.name, "easytravel") | summarize requests = count(), by: { endpoint.name, dt.entity.process_group } | fieldsAdd process_group_name = entityName(dt.entity.process_group)

If this doesn't return any results, I'd first verify which fields are available in your spans (for example endpoint.name vs span.name), as the available attributes can vary depending on the technology and instrumentation.

In my case, this query returns the expected results:

Re: How to filter the service request with a particular request name?

Hillman — Tue, 07 Jul 2026 01:56:13 GMT

Sadly, I have tried to check for the endpoint.name or span.name and they do not return any useful results (either * or null)