Daniel Sutton
906d5fafb6
## Summary - Introduce the Mollifier: a Redis-backed buffer for `trigger()` API calls during traffic spikes, with a per-env trip evaluator and a drainer ack-loop. - Phase 1 is dual-write monitoring — every mollified trigger is buffered to Redis AND continues to `engine.trigger`. No customer-facing behaviour change. - Telemetry events: `mollifier.would_mollify`, `mollifier.buffered`, `mollifier.drained`, plus the `mollifier.decisions` counter. - Gated behind a feature flag (default off). ## Test plan - [x] `pnpm run test --filter @trigger.dev/redis-worker` - [x] `pnpm run test --filter webapp -- mollifier` - [x] Manual: with flag off, no behaviour change vs main - [x] Manual: with flag on + threshold lowered, observe `mollifier.buffered` + `mollifier.drained` log pairs with matching `runId` --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Server Changes
This directory tracks changes to server-only components (webapp, supervisor, coordinator, etc.) that are not captured by changesets. Changesets only track published npm packages — server changes would otherwise go undocumented.
When to add a file
Server-only PRs: If your PR only changes apps/webapp/, apps/supervisor/, apps/coordinator/, or other server components (and does NOT change anything in packages/), add a .server-changes/ file.
Mixed PRs (both packages and server): Just add a changeset as usual. No .server-changes/ file needed — the changeset covers it.
Package-only PRs: Just add a changeset as usual.
File format
Create a markdown file with a descriptive name:
.server-changes/fix-batch-queue-stalls.md
With this format:
---
area: webapp
type: fix
---
Speed up batch queue processing by removing stalls and fixing retry race
Fields
- area (required):
webapp|supervisor|coordinator|kubernetes-provider|docker-provider - type (required):
feature|fix|improvement|breaking
Description
The body text (below the frontmatter) is a one-line description of the change. Keep it concise — it will appear in release notes.
Lifecycle
- Engineer adds a
.server-changes/file in their PR - Files accumulate on
mainas PRs merge - The changeset release PR includes these in its summary
- After the release merges, CI cleans up the consumed files
Examples
New feature:
---
area: webapp
type: feature
---
TRQL query language and the Query page
Bug fix:
---
area: webapp
type: fix
---
Fix schedule limit counting for orgs with custom limits
Improvement:
---
area: webapp
type: improvement
---
Use the replica for API auth queries to reduce primary load