Sampling override issue

[mkocicdigit]

I have issue with sampling override. I want to exclude some dependencies from application insights.

This is an example how i configured applicationinsights json config file.

I am using applicationinsights-runtime-attach 3.7.1 version

{
"sampling": {
    "overrides": [
      {
        "telemetryType": "dependency",
        "attributes": [
          {
            "key": "http.target",
            "value": "/path/.*",
            "matchType": "regexp"
          }
        ],
        "percentage": 0
      }
    ]
  }
}

I am not sure what I need to put in key properties in attributes list. My idea is to disable all dependecies requests that contains /path/* in url link.

But with this configuration logs with /path in url appears in application insights (transaction search)

Do you have comment/suggestion?

BR.

[mkocicdigit]

One additional topic.

With the following configuration, HTTP dependencies are not shown in Application Insights
{"sampling": { "overrides": [ { "telemetryType": "dependency", "attributes": [ { "key": "url.path", "value": ".*", "matchType": "regexp" } ], "percentage": 0 } ] }}

However, when I use the following configuration:

{"sampling": { "overrides": [ { "telemetryType": "dependency", "attributes": [ { "key": "url.path", "value": ".*test.*", "matchType": "regexp" } ], "percentage": 0 } ] }}

I still see all dependency logs in Application Insights, including those where the path contains "test".

It seems like the regular expression in the value field is not being applied correctly.

Could you please investigate this issue?

BR.

[TimothyMothra]

Please review this doc and see if this helps:

To see the exact set of attributes captured by Application Insights Java for your application, set the self-diagnostics level to debug, and look for debug messages starting with the text "exporting span".

https://learn.microsoft.com/en-us/azure/azure-monitor/app/java-standalone-sampling-overrides#span-attributes-available-for-sampling