The in-process cache was a FIFO of 500 entries that was never touched on a
read, so a key polled on every request could be evicted by an unrelated burst
of dynamic keys. That looked exactly like the cache being cleared at random,
and it is what made the site fall back to the database unpredictably.
- Evict least-recently-used instead, and raise the default budget to 2000
(CACHE_MEMORY_MAX_ENTRIES). Reading a key now marks it as used, so a hot key
only leaves when a hotter one takes its place.
- Add opt-in stale-while-revalidate (CachedOptions.staleMs). The grace window
lives on the entry, so one call site opting in protects every reader of that
key. A failed background refresh keeps serving the last good value instead of
falling through to the origin, and is reported once rather than per read.
- Invalidate across processes. invalidateKey() now clears memory, deletes the
Redis key and publishes a signal, so a value written by one process is no
longer served stale by the others for the rest of its TTL. A failed Redis
delete no longer skips the broadcast.
- Guard against a refresh that started before an invalidation writing its
outdated result back into the cache.
- Read the news revision at most once a second per process instead of on every
call, with a pub/sub signal to drop the local copy when it rotates. A Redis
outage now degrades to the in-process cache rather than to no cache at all.
- Warm the hot public keys on boot, so the first visitors after a deploy do not
each pay for a miss.
- Count hits, misses, stale serves, errors and evictions per key, exposed at
GET /api/admin/devops/cache. Without it a wrong REDIS_URL, a full budget and
a dead origin all look identical from the outside.
- Enforce the imaging cache budget for real: records are .img/.json pairs, so
the old cap counted files and never removed anything while entries were
fresh. Sweeps are throttled per directory and prune to a low-water mark.
- Cap the JWT version map, and stop per-test scratch roots from littering the
runtime imaging cache.
Public read-only endpoints get grace windows; admin, account and auth data
deliberately stays fresh. Redis TTLs get a little jitter so keys written
together no longer expire together.
3209 tests pass. next build could not be verified on this host: the optimized
build is OOM-killed before prerender, so this has not run in a real Next
runtime yet.
- Cache read-heavy public API routes via redisCache (leaderboard, values,
shop, articles, photos, guilds, teams, staff, users, home, radio, badges)
- Add single-flight and bounded-memory cache layer with unit tests
- Parallelize independent DB queries on search, rares, shop, staff, polls
and profile pages
- Push radio points leaderboard aggregation to SQL with a LIMIT
- Split studio-client and import-furni-client into focused modules
- Clean up next.config.ts
- Clone import: defer FurnitureData.json writes and append all entries in a
single batched write instead of one read-modify-write per item, removing
the main serialization bottleneck for large batches.
- Clone import: raise SSE batch concurrency cap from 5 to 10 and bump the
clone client/route default from 2 to 6.
- Add a flush hook to runSseBatch so callers can batch deferred work before
batch_complete is emitted, and surface flush errors as an error event.
- Enable Next.js Cache Components (instant: false opt-out) and silence the
related build warnings in next.config.ts.
- Switch isomorphic-dompurify to dompurify and refresh dependencies.
- Rich profile (/u/[username]): wallet (credits/duckets/diamonds), friends
grid (messenger_friendships), and owned rooms sections.
- Login history: new website_login_logs table (model + migration 0007),
recorded on every successful sign-in (ip + user-agent), surfaced on a new
/settings/sessions page (with failed-attempt list from failed_logins).
- Photos lightbox + home article slider (client components, no Swiper dep).
- /client/flash launcher (SSO ticket like the Nitro page).
- Admin: private chatlogs section in /admin/logs, /admin/radio/moderation
(shout moderation), a "users by rank" inline bar chart on the dashboard,
and a TinyMCE rich-text editor on the article admin forms.
- Niche API: /api/values/[id], /api/guilds(+/[id]), /api/radio/auto-play.
Verified live (prod, amx_test): login recorded → /settings/sessions shows
it with device; profile renders wallet/friends/rooms; dashboard chart +
private-chat logs + /client/flash + /api/guilds all OK. Reverted test data.
tsc 0, vitest 49/49, next build 0.
openhands
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