DOC-1381: Add Load Factor dashboard monitoring page (26.2)#1815
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DOC-1381: Add Load Factor dashboard monitoring page (26.2)#1815Feediver1 wants to merge 2 commits into
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New how-to for the 26.2 "Redpanda - Load Factor" Grafana dashboard (ENG-540): what load factor is (live utilization vs estimated instance capacity), the internal-metrics-endpoint prerequisite (the dashboard queries vectorized_* series only; the public-metrics variant was an unshipped stretch goal), the instance-capacity and host-OS metric families behind it, import + panel-reading guidance, and limitations (nominal vendor capacity figures; unrecognized instance types emit no capacity gauges). Facts verified against v26.2.1-rc3 (enable_host_metrics default/restart/ visibility, instance_metrics.cc presence) and the dashboard JSON on dev (112 vectorized_ refs, 0 redpanda_; panel inventory). DRAFT-VERIFY markers cover the two facts pending engineering: dashboard distribution (Travis Downs pinged on DOC-1381) and the exact load-factor computation semantics. Metrics reference entries for instance_*/host_metrics_info/ io_queue_config_* arrive via the 26.2 metrics regen, not hand-edits. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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…rted guide Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Description
Documents the 26.2 "Redpanda - Load Factor" Grafana dashboard (ENG-540): a new Self-Managed monitoring page covering the load-factor concept (live utilization vs. estimated instance capacity), the metric families behind it, import and panel-reading guidance, and limitations.
Resolves DOC-1381.
Key content decisions (all source-verified; see the delta review on DOC-1381)
vectorized_*series exclusively (112 refs, zeroredpanda_*in the JSON) — the public-metrics variant was an unshipped stretch goal (Stephan Dollberg, ENG-540 2026-06-29). Customers scraping only/public_metricscan't use it without adding internal-endpoint scraping.enable_host_metricsfacts (defaulttrue, restart required, tunable) verified at thev26.2.1-rc3tag;instance_metrics.ccconfirmed present in the release.instance_*/host_metrics_info/io_queue_config_*reference entries arrive via the 26.2 metrics regen (avoiding the regen-clobber problem).load_factormetric exists — stated explicitly with a NOTE, since the feature title suggests otherwise.single-load-factor.jsonfrom the redpanda repo. @travis-downs pinged on DOC-1381 (2026-07-21); adjust if it ships via a published bundle or Console instead.Cloud
Self-Managed only by verified scope (ENG-908 Cloud UI indicator unbuilt; cloudv2 has zero load-factor surface). The Cloud twin is DOC-2315. This page is not single-sourced, so no env gating is needed.
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