docs: update Redis metric from connections to clients

[apollo-mateuswgoettems]

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Description

This PR updates the Redis cache metrics documentation to use the correct metric name apollo.router.cache.redis.clients instead of the deprecated apollo.router.cache.redis.connections.

Motivation

The apollo.router.cache.redis.connections metric was replaced with apollo.router.cache.redis.clients in PR #8161. The observability documentation for response caching still referenced the old metric name.

Changes

• Updated docs/source/routing/performance/caching/response-caching/observability.mdx to reference apollo.router.cache.redis.clients
• Description changed from "Number of active Redis connections" to "Number of Redis clients active" to match the standard-instruments.mdx documentation

References

• Original metric replacement: PR fix: correct Redis client counting metric #8161
• CHANGELOG entry documenting the change (line 174)

Checklist

• PR description explains the motivation for the change and relevant context for reviewing
• PR description links appropriate GitHub/Jira tickets (creating when necessary)
• Changeset is included for user-facing changes
• Changes are compatible¹
• Documentation² completed
• Performance impact assessed and acceptable
• Metrics and logs are added³ and documented
• Tests added and passing⁴
  • Unit tests
  • Integration tests
  • Manual tests, as necessary

Exceptions

• Changeset: Not needed - documentation-only fix for already released changes
• Metrics/logs: Not applicable - updating existing metric documentation
• Tests: Not applicable - documentation change only

Notes

This is a straightforward documentation fix to align with the metric name change that was already implemented in the codebase.

Footnotes

1. No compatibility concerns - documentation only ↩

2. This PR is the documentation update itself ↩

3. No new metrics - updating reference to existing metric ↩

4. Documentation changes don't require code tests ↩

[apollo-librarian]

✅ Docs preview ready

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File Changes

0 new, 1 changed, 0 removed

* graphos/routing/(latest)/performance/caching/response-caching/observability.mdx

Build ID: 7a33bb00cdec88efffbcb8a6
Build Logs: View logs

URL: https://www.apollographql.com/docs/deploy-preview/7a33bb00cdec88efffbcb8a6

[github-actions]

@apollo-mateuswgoettems, please consider creating a changeset entry in /.changesets/. These instructions describe the process and tooling.

[carodewig]

Sorry for the delay on this - good catch!