Export cache configuration as OTel metrics#50
Open
AlexanderKlump wants to merge 2 commits into
Open
Conversation
AlexanderKlump
force-pushed
the
feature/config-metrics
branch
from
f4a0fa3 to
654f193
Compare
Add config values to the s3_cache.info gauge (cache_enabled, listen_addr, upstream_region) and introduce separate config gauges for numeric values (cache_shards, cache_max_entries, cache_max_size_bytes, cache_max_object_size_bytes, cache_ttl_seconds, worker_threads). This enables dashboards to compute cache utilization (e.g. size_bytes / config.cache_max_size_bytes) and to display the active configuration per instance. Includes an integration test that verifies the full OTLP pipeline (proxy → OTel Collector → Prometheus exporter) and asserts correct Prometheus naming for all triggerable metrics.
AlexanderKlump
force-pushed
the
feature/config-metrics
branch
from
654f193 to
2153a06
Compare
hasenbanck
requested changes
Apr 10, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Add config values to the s3_cache.info gauge (cache_enabled, listen_addr, upstream_region) and introduce separate config gauges for numeric values (cache_shards, cache_max_entries, cache_max_size_bytes, cache_max_object_size_bytes, cache_ttl_seconds, worker_threads).
This enables dashboards to compute cache utilization (e.g. size_bytes / config.cache_max_size_bytes) and to display the active configuration per instance.
Includes an integration test that verifies the full OTLP pipeline (proxy → OTel Collector → Prometheus exporter) and asserts correct Prometheus naming for all triggerable metrics.