fabi
35664bccc7
The admin overview dashboard polls /admin/overview every 30s. Its `manga_stats` aggregate evaluated MANGA_SYNC_STATE_CASE over the WHOLE library (14.5k mangas) with no LIMIT, and that CASE runs a correlated EXISTS over crawler_jobs. With no index on the `sync_chapter_list` manga_id path, Postgres seqscanned all in-flight jobs *per manga* — O(mangas x jobs). The disabled-analysis backlog (9.5k pending `analyze_page` rows that can never match the sync-kind filter) inflated every scan, so each call took 6-7 min. The 30s poll stacked ~10 of them concurrently → load 11, Postgres at ~100%. EXPLAIN ANALYZE on the live DB: the rewrite drops the query from 6-7 min to ~1.5s (per-manga crawler_jobs seqscan → single index-backed pass). Fixes: - Rewrite `manga_stats` to collect the in-flight manga-id set in ONE pass over the sync jobs (index-backed), then classify via a hash semi-join — O(mangas + jobs), immune to the analyze_page backlog size. - Add partial index crawler_jobs_sync_chapter_list_manga_idx (migration 0029) covering the sync_chapter_list manga_id path; mirrors the existing sync_manga index (0020). Also speeds the per-row Mangas tab listing. - statement_timeout backstop (5s) on the aggregate so a pathological plan can never pin a backend for minutes again. - Single-flight + 10s TTL cache on the /admin/overview handler so concurrent pollers coalesce instead of stacking. - Slow the dashboard poll 30s -> 60s (server-cached now anyway). The in_progress rule in the rewrite is kept in lockstep with the first arm of MANGA_SYNC_STATE_CASE (documented in both places). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
33 lines
862 B
JSON
33 lines
862 B
JSON
{
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"name": "mangalord-frontend",
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"version": "0.85.1",
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"private": true,
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"type": "module",
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"scripts": {
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"dev": "vite dev",
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"build": "vite build",
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"preview": "vite preview",
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"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
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"test": "vitest run",
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"test:watch": "vitest",
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"test:e2e": "playwright test"
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},
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"devDependencies": {
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"@lucide/svelte": "^1.16.0",
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"@playwright/test": "^1.48.0",
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"@sveltejs/adapter-node": "^5.2.0",
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"@sveltejs/kit": "^2.7.0",
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"@sveltejs/vite-plugin-svelte": "^4.0.0",
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"@testing-library/jest-dom": "^6.6.0",
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"@testing-library/svelte": "^5.2.0",
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"@types/node": "^22.7.0",
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"jsdom": "^25.0.0",
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"svelte": "^5.0.0",
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"svelte-check": "^4.0.0",
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"tslib": "^2.7.0",
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"typescript": "^5.6.0",
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"vite": "^5.4.0",
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"vitest": "^2.1.0"
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}
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}
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