[26.2] Improved cluster health summary - #1805
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✨ Finishing Touches🧪 Generate unit tests (beta)
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| ==== Enable cluster health metrics | ||
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| Set xref:reference:properties/cluster-properties.adoc#health_monitor_metrics_enabled[`health_monitor_metrics_enabled`] to `true`. This property requires a broker restart to take effect. |
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Surprised this is opt in @tyson-redpanda . Not high cardinality at all and quite useful in the general case
| |xref:reference:public-metrics-reference.adoc#redpanda_cluster_health_refreshes_total[`redpanda_cluster_health_refreshes_total`] |counter |Number of successful refreshes on the broker. | ||
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| NOTE: The informational metrics (`cluster_size`, `nodes_in_recovery_mode`, and `bytes_in_cloud_storage`) don't affect whether the cluster is considered healthy. |
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Surprised nodes in recovery node would not impact cluster health @pgellert @tyson-redpanda
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Minor, non-blocking suggestions
No blocking issues from my read — the technical content (PromQL, property name, defaults) is internally consistent, prior review feedback is fully incorporated, and it already has two approvals. This looks mergeable as-is. |
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Brings the branch current with beta (which now includes #1784 and #1805). Conflict resolution in specify-iceberg-schema.adoc: the section-based "Configure key, value, and header translation" section comes first, then "Resolve schemas within a Schema Registry context" (promoted from === to == and moved after the section-based content), followed by a single "How Iceberg modes translate to table format". release-notes keeps all three 26.2 what's-new entries. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Description
This pull request updates the Redpanda release notes to document new features and configuration options, most notably the addition of cluster health metrics export as Prometheus metrics. It also removes several older release note sections and details on new configuration properties, streamlining the release notes and focusing on the most impactful changes.
New Feature Documentation:
rpk cluster health. The metrics mirrorrpk cluster healthoutput and are disabled by default.health_monitor_metrics_enabledproperty and restarting brokers, with a reference to the documentation for available metrics and query examples.Release Notes Streamlining:
Resolves https://redpandadata.atlassian.net/browse/DOC-2016
Review deadline: 23 July
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