chore(observability): deprecate obsolete http metrics (#18972)

* OPW-94 deprecate obsolete http metrics * feedback * feedback * fmt * Update DEPRECATIONS.md
vectordotdev · Nov 3, 2023 · f33dce2 · f33dce2
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diff --git a/docs/DEPRECATIONS.md b/docs/DEPRECATIONS.md
@@ -19,3 +19,4 @@ For example:
 ## To be removed
 
 - datadog_v1_metrics v0.35.0 Support for `v1` series endpoint in the `datadog_metrics` sink should be removed.
+- http_internal_metrics v0.35.0 `requests_completed_total`, `request_duration_seconds`, and `requests_received_total` internal metrics should be removed.
diff --git a/website/content/en/highlights/2023-11-07-0-34-0-upgrade-guide.md b/website/content/en/highlights/2023-11-07-0-34-0-upgrade-guide.md
@@ -18,6 +18,9 @@ Vector's 0.34.0 release includes **breaking changes**:
 1. [Blackhole sink no longer reports by default](#blackhole-sink-reporting)
 1. [Remove direct OpenSSL legacy provider support](#openssl-legacy-provider)
 
+and **deprecations**:
+
+1. [Deprecation of `requests_completed_total`, `request_duration_seconds`, and `requests_received_total` Internal Metrics](#deprecate-obsolete-http-metrics)
 
 We cover them below to help you upgrade quickly:
 
@@ -101,3 +104,15 @@ flag was deprecated in v0.33.0.
 
 The legacy OpenSSL provider (and other providers than the default provider) can still be enabled if
 desired through [options in OpenSSL's configuration](/docs/reference/configuration/tls)
+
+### Deprecations
+
+#### Deprecation of `requests_completed_total`, `request_duration_seconds`, and `requests_received_total` Internal Metrics {#deprecate-obsolete-http-metrics}
+
+The `requests_completed_total`, `request_duration_seconds`, and `requests_received_total` internal metrics are removed in the 0.35.0 release.
+
+| Deprecated metric           | Replacement metric                  | Affected components                                                                      |
+|-----------------------------|-------------------------------------|------------------------------------------------------------------------------------------|
+| requests_completed_total    | http_client_responses_total         | apache metrics, aws ecs metrics, http client, prometheus remote write, prometheus scrape |
+| request_duration_seconds    | http_client_response_rtt_seconds    | apache metrics, aws ecs metrics, http client, prometheus remote write, prometheus scrape |
+| requests_received_total     | http_server_requests_received_total | aws kinesis firehose, heroku logplex, prometheus exporter, splunk hec                    |
Original file line number	Diff line number	Diff line change
Expand Up		@@ -19,3 +19,4 @@ For example:
		## To be removed

		- datadog_v1_metrics v0.35.0 Support for `v1` series endpoint in the `datadog_metrics` sink should be removed.
		- http_internal_metrics v0.35.0 `requests_completed_total`, `request_duration_seconds`, and `requests_received_total` internal metrics should be removed.