Deprecate metric cortex_distributor_sample_delay_seconds (#7516)

* Deprecate the metric cortex_distributor_sample_delay_seconds

cortex_distributor_sample_delay_seconds has served it's purpose
in developing out of order ingestion, however the metric is not
useful in a multi tenant environment.

We'll remove it in 2.14 and may reintroduce it as a
native histogram / tenant if needed later.

Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>

CHANGELOG.md

@@ -44,6 +44,7 @@
 * [CHANGE] Store-gateway: Use a shorter TTL for cached items related to temporary blocks. #7407
 * [CHANGE] Standardise exemplar label as "trace_id". #7475
 * [CHANGE] The configuration option `-querier.max-query-into-future` has been deprecated and will be removed in Mimir 2.14. #7496
+* [CHANGE] Distributor: the metric `cortex_distributor_sample_delay_seconds` has been deprecated and will be removed in Mimir 2.14. #7516
 * [FEATURE] Introduce `-server.log-source-ips-full` option to log all IPs from `Forwarded`, `X-Real-IP`, `X-Forwarded-For` headers. #7250
 * [FEATURE] Introduce `-tenant-federation.max-tenants` option to limit the max number of tenants allowed for requests when federation is enabled. #6959
 * [FEATURE] Cardinality API: added a new `count_method` parameter which enables counting active label values. #7085

docs/sources/mimir/configure/about-versioning.md

@@ -184,6 +184,8 @@ The following features or configuration parameters are currently deprecated and
 
 The following features or configuration parameters are currently deprecated and will be **removed in Mimir 2.14**:
 
+- Distributor
+  - the metric `cortex_distributor_sample_delay_seconds`
 - Ingester
   - `-ingester.return-only-grpc-errors`
 - Ingester client