[BUG] OTel span for RemoveByTag operation is missing attribute telling what tag was removed

[tvardero]

RemoveByTag operation does not have any span attributes telling about what actual tag was removed:

It has empty fusioncache.operation.key attribute, but no fusioncache.operation.tag or similar.

Endpoint was called with [ "asdf" ] and [ "aaa", "bb:*", "*" ]. Call with 3 items created 3 separate activities remove from cache by tag with same attributes.

[jodydonetti]

Hi @tvardero , that would be the tag, not the key.

If you look here you can see that, as things stand today, you should enable the IncludeTagsInTraces option (in the AddFusionCacheInstrumentation() call).

Having said that we can discuss if, for an operation such as RemoveByTagAsync(), that tag should be included nonetheless, since for such a method call the tag is the main argument.

Opinions?

[tvardero]

Imo: as tag is a required argument and the whole method is around tags, it should be included weather IncludeTagsInTraces option is on or off.