08a36aa68f
## Context `PromiseMemoizer` sits in front of the staged lookup (local cache → Redis hash validation → Redis data → DB recompute) of both `CoreEntityCacheService` and `WorkspaceCacheService` (10s TTL each). The Redis hash check is the **only** cross-instance invalidation mechanism — there is no pub/sub — and it runs only when the memo entry expires. The TTL is currently **sliding**: every read refreshes `lastUsed`, and eviction compares against time-since-last-read. So any entry read more often than every 10s on a given instance never revalidates, and that instance serves stale data for as long as traffic continues. Affected data: auth-context entities (workspace, user, userWorkspace), API key revocations, role/permission maps, RLS predicates, feature flags, and all metadata maps. Observed manifestation: after `activateWorkspace`, a sibling instance kept serving a `PENDING_CREATION` workspace snapshot (kept alive indefinitely by the client's own polling), stranding signup on a permanent loading skeleton at `/create/profile` (#21461). Same staleness class as #20322 and the CI flakes investigated in #21435. ## Why it was sliding #11444 (April 2025) deliberately changed the TTL from absolute to sliding because the memoizer's then-consumer was the TypeORM datasource storage: absolute expiry was destroying datasources that were actively in use (`onDelete` → `destroy()`), causing worker `Connection terminated` errors. That consumer no longer exists — datasources moved to `GlobalWorkspaceOrmManager`, and neither remaining consumer passes `onDelete` or holds resources needing keep-alive. ## Fix Restore absolute expiry: `expiresAt` is set at write time and never refreshed on read. Every instance now re-enters the staged lookup (and thus the Redis hash validation) at least once per TTL, restoring the designed ≤10s cross-instance staleness ceiling. Concurrent dedup (`pending` map) and `onDelete` plumbing are unchanged. ## Test plan - New regression test: reads at half-TTL intervals must not extend an entry's lifetime (fails on the sliding implementation, passes now). - Full `promise-memoizer.storage.spec.ts` and `workspace-cache.service.spec.ts` suites pass (25 tests); lint and format clean. <!-- This is an auto-generated description by cubic. --> <a href="https://cubic.dev/pr/twentyhq/twenty/pull/21480?utm_source=github" target="_blank" rel="noopener noreferrer" data-no-image-dialog="true"><picture><source media="(prefers-color-scheme: dark)" srcset="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"><source media="(prefers-color-scheme: light)" srcset="https://www.cubic.dev/buttons/review-in-cubic-light.svg"><img alt="Review in cubic" src="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"></picture></a> <!-- End of auto-generated description by cubic. -->
The #1 Open-Source CRM
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Why Twenty
Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.
Learn more about why we built Twenty
Installation
Cloud
The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.
Build an app
Scaffold a new app with the Twenty CLI:
npx create-twenty-app my-app
Define objects, fields, and views as code:
import { defineObject, FieldType } from 'twenty-sdk/define';
export default defineObject({
nameSingular: 'deal',
namePlural: 'deals',
labelSingular: 'Deal',
labelPlural: 'Deals',
fields: [
{ name: 'name', label: 'Name', type: FieldType.TEXT },
{ name: 'amount', label: 'Amount', type: FieldType.CURRENCY },
{ name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME },
],
});
Then ship it to your workspace:
npx twenty app:publish --private
See the app development guide for objects, views, agents, and logic functions.
Self-hosting
Run Twenty on your own infrastructure with Docker Compose, or contribute locally via the local setup guide.
Everything you need
Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.
Want to go deeper? Read the 
User Guide for product walkthroughs, or the Documentation for developer reference.
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Learn more about version control in doc
Stack
TypeScript
Nx
NestJS, with BullMQ, 
PostgreSQL, 
Redis
React, with Jotai, Linaria and Lingui
Thanks
Thanks to these amazing services that we use and recommend for code review (Greptile), catching bugs (Sentry) and translating (Crowdin).
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