Sampling override applicationinsights-java-agent telemetryType requests not work

[serignemodou]

Expected behavior
I want to

• capture 100% for only some requests url that contains path /parcours
• Not capture all the rest
  I'm following this document

Actual behavior
The override is ignored.

To Reproduce
I'm using

• Spring Boot v3.2.3
• Applicationinsights-agent 3.5.1

Below is my applicationinsights.json configuration:

{
	"connectionString": "key-applicationinsights"
	"role": {
		"name": "demo name"
	},
	"instrumentation": {
		"logging": {
			"level": "TRACE"
		}
	},
	"selfDiagnostics": {
		"destination":"file+console",
		"level": "DEBUG",
		"file": {
			"path": "applicationinsights.log",
			"maxSizeMb": 5,
			"maxHistory": 1
		}
	},  
	"sampling": {
		"percentage": 0,
		"overrides":  [ 
			{
				"telemetryType": "request",
				"attributes": [
				  {
					"key": "url.path",
					"value": ".*/parcours/.*",
					"matchType": "regexp"
				  }
				],
				"percentage": 100
			}
		]
	}
}

**Logs result on app insights requests
As you can see, all the logs are collected, that's means the sampling override is ignored.

[serignemodou]

By looking, the span attributes in the logs, i found that my key, value are not directely on the attributs list
attributes=AttributesMap{data={url.scheme=https, network.peer.port=39621, http.request.method=GET, http.route=/app/v1/health-check, url.path=/app/v1/parcours/utilisateurs}

How can I access this value key ?

[trask]

are you getting any warnings from the Java agent on startup? it looks like you're missing a comma in your json, so I'd expect the Java agent to log this as a warning on startup

[serignemodou]

On the first line no, i made a mistake on the copy.
I have no warning on the agent

[serignemodou]

it seems that the span does not record the attributes, on the agent logs I see the attribute field empty attributes={}

[trask]

what about the log you pasted above? that one looked like it picked up url.path:

attributes=AttributesMap{data={url.scheme=https, network.peer.port=39621, http.request.method=GET, http.route=/app/v1/health-check, url.path=/app/v1/parcours/utilisateurs}

[serignemodou]

I think the key value url.path is not setter in the right place.
It should be in the attributes list, which currently only contains the keys/values attributes={service.name=‘my-service-name’, telemetry.sdk.language=‘java’, telemetry.sdk.name=‘opentelemetry’, telemetry.sdk.version=‘1.35.0’}} , and not in the list of attributes attributes=AttributesMap{data={url.scheme=https, network.peer.port=39621, http.request.method=GET, http.route=/app/v1/health-check, url.path=/app/v1/parcours/utilisateurs}

it seems normal to me that the filter on the url.path attribute doesn't work, because it looks for values on attributes={} and not on attributes=AttributesMaps{data={}}

How i can set this key/value in the attributes list ?

[trask]

attributes={service.name=‘my-service-name’, telemetry.sdk.language=‘java’, telemetry.sdk.name=‘opentelemetry’, telemetry.sdk.version=‘1.35.0’}}

these are opentelemetry resource attributes and are not supported by the sampling overrides

http.route isn't supported by sampling overrides b/c it is typically set after span start

url.path should work

would you be able to create a small repro that we can look at to see what the issue might be?

[serignemodou]

Ok,
Unfortunately the url.path not work for me.
I have a repo demo, i invited to join it.

[trask]

hi @serignemodou, thanks for the demo app. I ran it locally and hit http://localhost:8080/app/v1/health-check/test and didn't see any request telemetry captured.

How does it work for you locally (not in App Services)? thanks

[serignemodou]

Hi @trask
Exact, it work well locally.
Do you have an idea on why it doesn't work on App Service ?

[trask]

Are you using the Application Insights / App Services Integration? that will automatically add the -javaagent which will take precedence over the runtime attach, and so won't pick up your json configuration file

[serignemodou]

Hi,
I haved disabled -javaagent by deleting the app service env variable ApplicationInsightsAgent_EXTENSION_VERSION, now i only use runtime attach.
But, the file config applicationinsights.json is not loaded, as a result no logs are collected
i followed this documentation to configure the runtime attach app insigths spring boot