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Marc-André Bombeck
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An account of 1.25 million measurements could not export its data or be restored from any backup (#1031). Measured in a 1 GB container: - The full export and the passphrase export built the whole payload and its JSON string in memory; the app ran out of heap and restarted. - The weekly backup's JSON is 662 MB, longer than any string V8 can hold, so `unpackBackupBlob` threw on every read. Restore, download and the restore preview all answered "could not be decrypted". - Upload accepted 10 MB, a fraction of a large export. Every reader and writer of a backup file now streams it: - `scanBackupJson` reads a backup's bytes once, keeps every section but the named bulk arrays, and hands their elements out one at a time. `readStreamedBackup` uses it twice: a first pass that validates each measurement against the element schema and keeps the rest of the file, and a second pass that hands the measurements to the writer in batches. Stored copies and off-host objects are authenticated whole on their compressed ciphertext before any plaintext is read; only the decompression is streamed. - Restore writes the measurements with one `INSERT … FROM unnest` per batch. Prisma caches a query plan per `createMany` row count, and one 1 000-row plan kept about 145 MB alive, which alone put the restore past the heap limit. The transaction budget grows with the measurement count. The awards and ECG sections are handed the ids they reference that were written, not every written id. - The export routes write the file into the response as it is produced. The passphrase export spools its ciphertext to a temporary file because the HLX1 format puts the tag first; the format is unchanged, so existing archives open as before. - Upload accepts the raw body, JSON or gzip, up to the 512 MB request ceiling, checks it as it arrives and stores it in the same pass; the admin page compresses the file in the browser before sending it. Multipart stays for small files. - Download streams the stored JSON; the preview counts measurements from the stream. The monthly restore drill and `scripts/restore-backup.ts` read the off-host object the same way; the script can write `.json.gz`. On the seeded account in a 1 GB container: export 25 s at 389 MB peak, passphrase export 25 s, both uploads 19 s, restore of the weekly backup 94 s at 554 MB peak, and export, upload and restore round-trip to exactly the same rows. The encrypted-column guard now also recognises the raw SQL statement that writes `DataBackup.data`.
scripts/
One-shot operator and build scripts. These are not part of the running application — they are run by hand during a deploy, a backfill, or a release, or wired into CI. Recurring work belongs on pg-boss (src/lib/jobs/), not here.
How to run them
From a source checkout:
pnpm dlx tsx scripts/<file>.ts
The production image intentionally removes npm, pnpm, and Corepack. Only
container-safe scripts named by an operator runbook use its pinned
healthlog-tsx launcher; scripts that import the full application dependency
graph must run from a source checkout. scripts/ is excluded from the project
typecheck.
What lives here
generate-openapi.ts— emitsdocs/api/openapi.yamlfrom the registered Zod schemas (pnpm openapi:generate).check-openapi.ts— compares a freshly generated spec against the committed YAML; CI fails on drift (pnpm openapi:check).check-env.ts— pre-deploy env-var sanity check againstenv-manifest.json(pnpm check-env); wired into CI.assert-deploy.ts— post-deploy/api/versionassertion.rotate-encryption-key.ts— AES-256-GCM key rotation; seedocs/ops/encryption-key-rotation.md.restore-backup.ts— restore an off-host AES-GCM backup from an S3-compatible bucket.repair-apple-health-distance.ts— repair walking-distance rows theexport.zipimport stored 1000x too small; dry-run by default, seedocs/ops/apple-health-distance-repair.md.repair-intake-anomalies.ts— repair historic medication-ledger defects (duplicate dose-slot rows, implausibletaken_at); dry-run by default, seedocs/ops/intake-repair.md.backfill-rollups.ts,drain-per-sample-cumulative.ts,backfill-mood-note-column.ts— historical data backfills (note: the boot-timerollup-full-backfillqueue handles new accounts automatically; the CLI is the manual fallback).seed-demo.ts+seed-demo-v15.sql— populate a demo tenant.test-notifications.ts— exercise the notification dispatcher + reminder check.fetch-geolite2.sh— download the MaxMind GeoLite2 MMDBs (needs a licence key) beforedocker build.install-hooks.sh— install the local git hooks.generate-sw-version.mjs,print-bundle-report.mjs— service-worker version stamp and bundle-size report.i18n/— locale tooling;__tests__/— tests for the scripts above.
Conventions
See ../CLAUDE.md "Tests and commands" + "Self-hosting gotchas". Operator runbooks that drive these scripts live in ../docs/ops/.