3 Commits

Include renames

Author	SHA1	Message	Date
bvandeusenandClaude Opus 5.5	8941ed0372	fix(metrics): seed the latest table in the background, not in the migration (#5208) ... Migration 0030 seeded plugin_metric_latest from the whole history: two index probes per distinct metric key. On the live instance that held the first boot for 7+ minutes with Steward down. The migration now only creates the table. Live sources fill it on their next sample, and backfill_latest runs after startup for resources that have history but no latest rows. Per resource it does one backward probe for the last sample, then takes the newest value per metric within the hour before it. Resources that already have rows are skipped, so later boots only walk the resource names. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-06 23:19:38 -04:00
bvandeusenandClaude Opus 5.5	1845ba973c	perf(monitors): a monitor's latest results by a LATERAL probe, not row_number over its history (#5208) ... _last_n_results (Status, the monitors list, host monitors), host_status (hosts overview, list_hosts) and the report's down-monitor list each ranked every result a monitor ever recorded to keep the newest few. Each monitor now gets ORDER BY checked_at DESC LIMIT n in a LATERAL subquery, which walks ix_monitor_results_monitor_checked backwards and stops. Also fixes the latest-table test, which read between two begin() blocks and so autobegan a transaction the second block then refused. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-06 23:08:39 -04:00
bvandeusenandClaude Opus 5.5	b8f73270e7	perf(metrics): a latest-value table for "what is it now"; dashboard cells say loading, failed and as-of (#5208) ... The dashboard's host widgets took 18-60 s. Every "latest reading" query (hosts overview, host-agent fleet, host page, vitals, SNMP, MCP get_host) searched plugin_metrics for the newest row per metric. Postgres has no skip scan, so each one read every raw sample in the 7-day window. - plugin_metric_latest: one row per (source, resource, metric). record_metrics upserts it in the same transaction, moving forward only and in sorted key order. Migration 0030 seeds it by stepping the existing index. - Retention drops a latest row once its sample leaves the raw window, so a resource that stopped reporting disappears when its history does, as before. Renames carry it along. - A quiet host keeps its last values, marked stale. A time-bounded query would have shown it as missing. - Vitals sparklines span the 6 h they claim, averaged in SQL to ~120 points, instead of fetching 6 h raw and drawing the last 120 samples. - Dashboard and share-view cells: "Loading…" until the first answer; a 20 s deadline per fetch; "Couldn't load (why)" with Retry now and an automatic retry for cells that don't poll; "as of HH:MM" in the header, and "couldn't refresh · as of" when a refresh fails over shown data. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-06 23:06:34 -04:00