Const ExperimentalThe method name MAY have unbounded cardinality in edge or error cases.
Some RPC frameworks or libraries provide a fixed set of recognized methods for client stubs and server implementations. Instrumentations for such frameworks MUST set this attribute to the original method name only when the method is recognized by the framework or library.
When the method is not recognized, for example, when the server receives
a request for a method that is not predefined on the server, or when
instrumentation is not able to reliably detect if the method is predefined,
the attribute MUST be set to _OTHER. In such cases, tracing
instrumentations MUST also set rpc.method_original attribute to
the original method value.
If the RPC instrumentation could end up converting valid RPC methods to
_OTHER, then it SHOULD provide a way to configure the list of recognized
RPC methods.
The rpc.method can be different from the name of any implementing
method/function.
The code.function.name attribute may be used to record the fully-qualified
method actually executing the call on the server side, or the
RPC client stub method on the client side.
This attribute is experimental and is subject to breaking changes in minor releases of @opentelemetry/semantic-conventions.
The fully-qualified logical name of the method from the RPC interface perspective.