The rpc size attributes are now opt-in. #474

.chloggen/474.yaml

@@ -0,0 +1,22 @@
+# Use this changelog template to create an entry for release notes.
+#
+# If your change doesn't affect end users you should instead start
+# your pull request title with [chore] or use the "Skip Changelog" label.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the area of concern in the attributes-registry, (e.g. http, cloud, db)
+component: rpc
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: The `rpc.message.compressed_size` and `rpc.message.uncompressed_size` attribute is now opt-in on the `rpc.message` event.
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+# The values here must be integers.
+issues: [474]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:

docs/rpc/rpc-spans.md

@@ -289,10 +289,10 @@ In the lifetime of an RPC stream, an event for each message sent/received on cli
 
 | Attribute  | Type | Description  | Examples  | [Requirement Level](https://opentelemetry.io/docs/specs/semconv/general/attribute-requirement-level/) | Stability |
 |---|---|---|---|---|---|
-| [`rpc.message.compressed_size`](/docs/registry/attributes/rpc.md) | int | Compressed size of the message in bytes. |  | `Recommended` | ![Development](https://img.shields.io/badge/-development-blue) |
 | [`rpc.message.id`](/docs/registry/attributes/rpc.md) | int | MUST be calculated as two different counters starting from `1` one for sent messages and one for received message. [1] |  | `Recommended` | ![Development](https://img.shields.io/badge/-development-blue) |
 | [`rpc.message.type`](/docs/registry/attributes/rpc.md) | string | Whether this is a received or sent message. | `SENT`; `RECEIVED` | `Recommended` | ![Development](https://img.shields.io/badge/-development-blue) |
-| [`rpc.message.uncompressed_size`](/docs/registry/attributes/rpc.md) | int | Uncompressed size of the message in bytes. |  | `Recommended` | ![Development](https://img.shields.io/badge/-development-blue) |
+| [`rpc.message.compressed_size`](/docs/registry/attributes/rpc.md) | int | Compressed size of the message in bytes. |  | `Opt-In` | ![Development](https://img.shields.io/badge/-development-blue) |
+| [`rpc.message.uncompressed_size`](/docs/registry/attributes/rpc.md) | int | Uncompressed size of the message in bytes. |  | `Opt-In` | ![Development](https://img.shields.io/badge/-development-blue) |
 
 **[1] `rpc.message.id`:** This way we guarantee that the values will be consistent between different implementations.
 

model/rpc/spans.yaml

@@ -186,6 +186,6 @@ groups:
       - ref: rpc.message.id
         requirement_level: recommended
       - ref: rpc.message.compressed_size
-        requirement_level: recommended
+        requirement_level: opt_in
       - ref: rpc.message.uncompressed_size
-        requirement_level: recommended
+        requirement_level: opt_in