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What's New: cluster health metrics (DOC-2308) - #656

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DOC-2308-health-metrics-whats-new
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What's New: cluster health metrics (DOC-2308)#656
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DOC-2308-health-metrics-whats-new

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@Feediver1 Feediver1 commented Jul 30, 2026

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Summary

July 2026 What's New entry for DOC-2308: metrics-based cluster health monitoring on BYOC/Dedicated.

Companion to redpanda-data/docs#1855, which un-gates the single-sourced content (the Cluster health section in monitor-health.adoc and the 12 redpanda_cluster_health_* entries in the metrics reference) for Cloud builds. Merge #1855 first — this entry deep-links manage:monitor-cloud.adoc#cluster-health, an anchor that reaches cloud-docs through the single-source include.

The entry sits after the AWS-regions entry so its hunk doesn't conflict with #654 or #655, which edit other parts of the July section.

⚠️ Timing check before merging: requires Redpanda 26.2 on the cluster (self-managed GA'd 2026-07-30). Confirm Cloud fleet rollout with product. Also pending: confirmation that health_monitor_metrics_enabled is customer-settable in the Cloud Console (see the follow-up flagged on #1855) — if it turns out to be support-only, the entry's "enable them with the cluster property" wording needs adjusting.

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Preview pages

Note: the entry's link to monitor-cloud.adoc#cluster-health resolves to the page top in this preview — the anchor arrives via the single-source include only after docs#1855 merges.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Feediver1 requested a review from a team as a code owner July 30, 2026 15:55
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@coderabbitai

coderabbitai Bot commented Jul 30, 2026

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Review Change Stack

📝 Walkthrough

Walkthrough

Adds a July 2026 “Cluster health metrics” entry documenting Prometheus cluster health summaries for BYOC and Dedicated clusters. The metrics are exposed through the public metrics endpoint with the redpanda_cluster_health_ prefix, disabled by default, and enabled using the health_monitor_metrics_enabled cluster property.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

Suggested reviewers: ppanagiotis

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Description check ⚠️ Warning The description is informative, but it misses required template sections like Description, Review deadline, and Checks. Add the template sections: Description with the issue link, Review deadline, Page previews, and a checked item under Checks.
✅ Passed checks (4 passed)
Check name Status Explanation
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.
Title check ✅ Passed The title clearly matches the new What's New entry for cluster health metrics.
✨ Finishing Touches
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Commit unit tests in branch DOC-2308-health-metrics-whats-new

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@modules/get-started/pages/whats-new-cloud.adoc`:
- Around line 22-24: Update the “Cluster health metrics” section to explicitly
enumerate all 12 redpanda_cluster_health_* metric names, or replace/augment the
Monitor Redpanda Cloud link with a reference to a section that clearly lists all
12 metrics. Preserve the existing enablement property and overview.
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Fix all unresolved CodeRabbit comments on this PR:

  • Push a commit to this branch (recommended)
  • Create a new PR with the fixes

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⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: d24c11b0-e514-441c-840d-31ee2ad5fad7

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Reviewing files that changed from the base of the PR and between c5dcfcb and 88881f6.

📒 Files selected for processing (1)
  • modules/get-started/pages/whats-new-cloud.adoc

Comment on lines +22 to +24
=== Cluster health metrics

BYOC and Dedicated clusters can now export a cluster health summary as Prometheus metrics on the public metrics endpoint, so you can alert on overall cluster health, such as brokers down, leaderless partitions, or a missing controller, directly from your metrics system. The metrics are prefixed with `redpanda_cluster_health_` and are disabled by default: enable them with the `health_monitor_metrics_enabled` cluster property. See xref:manage:monitor-cloud.adoc#cluster-health[Monitor Redpanda Cloud].

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🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Describe the twelve health metrics explicitly or link to their exact reference.

The entry names the prefix and three example health conditions, but does not identify the 12 redpanda_cluster_health_* metrics required by the PR objective. Add the metric names here, or ensure the linked section clearly enumerates all 12.

🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@modules/get-started/pages/whats-new-cloud.adoc` around lines 22 - 24, Update
the “Cluster health metrics” section to explicitly enumerate all 12
redpanda_cluster_health_* metric names, or replace/augment the Monitor Redpanda
Cloud link with a reference to a section that clearly lists all 12 metrics.
Preserve the existing enablement property and overview.

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