<!-- ccr-slack-attribution --> _Requested by **Matt Aitken** · [Slack thread](https://triggerdotdev.slack.com/archives/C045W9WM3E1/p1786732623292829?thread_ts=1786732623.292829&cid=C045W9WM3E1)_ **Before:** you pause an environment, then a deploy lands (or a background worker is created, or an admin changes the concurrency/burst-factor). The environment starts picking up runs again even though the dashboard still shows it as paused. **After:** a paused environment stays paused until it is resumed, no matter what else pushes its concurrency limit. Pausing an environment sets `paused` in the database and writes a `0` env concurrency limit into the run queue — the `0` is the only thing that actually stops dequeueing. Any caller that pushed the limit without an explicit value (`finalizeDeployment`, `createBackgroundWorker`, the two admin environment routes) rewrote the real limit and silently un-paused the environment. ## ✅ Checklist - [x] I have followed every step in the [contributing guide](https://github.com/triggerdotdev/trigger.dev/blob/main/CONTRIBUTING.md) - [x] The PR title follows the convention. - [x] I ran and tested the code works --- ## Testing `apps/webapp/test/pauseEnvironment.server.test.ts` gains two `containerTest` cases that wire a real `RunEngine` (real Redis) in place of the stubbed app singleton and assert the actual run-queue env limit: - pause a PRODUCTION env → limit is `0` → run the real `FinalizeDeploymentService` → limit is still `0`, plus a control on a running env in the same test proving that deploy path really does push the limit (so the `0` can't just mean "nothing happened"). - pause → resume → the real limit is restored, so the clamp can't regress resuming. Both cases fail on `main` (`expected 17 to be +0` and `expected +0 to be 17`) and pass with this change. `pnpm run typecheck --filter webapp` is clean. --- ## Changelog Fix paused environments starting to run work again after a deploy. --- ## How The clamp lives in the shared `updateEnvConcurrencyLimits` helper in `apps/webapp/app/v3/runQueue.server.ts`, so every present and future caller is covered: when no explicit limit is passed and the environment is paused, `0` is written instead of the stored maximum. An explicitly-passed limit still wins, which is what pausing itself relies on. The resume path now passes the post-update environment state (its in-memory copy was read before the un-pause and would otherwise be clamped back to `0`), and the helper no longer mutates the caller's environment object — that aliasing made a pause followed by a resume on the same object write `0` twice. The existing `!paused` guards in `allocateConcurrency` and the queue-level guard in `createBackgroundWorker` are left in place as defence in depth, and queue-level `TaskQueue.paused` behaviour is untouched. --------- Co-authored-by: Claude <noreply@anthropic.com>
Server Changes
This directory tracks changes to server-only components (webapp, supervisor, etc.) that are not captured by changesets. Changesets only track published npm packages — server changes would otherwise go undocumented.
When to add a file
These entries are user-facing release notes, not a catalog of every change. The test is "would a user or customer care about this change?", not "did I touch a server app?". Add one only when a server-only change is something a user would notice, act on, or want to hear about (a feature, a bug fix they could have hit, a behavior or performance change they would feel). Skip it for internal-only or admin-only changes, refactors, test-only changes, chores, and performance tuning with no user-visible effect. Anyone who wants the exact history reads the commits. When in doubt, ask a maintainer rather than adding a note by default.
Server-only PRs: If your PR only changes apps/webapp/, apps/supervisor/, or other server components (and does NOT change anything in packages/) AND the change is user-facing, add a .server-changes/ file.
Mixed PRs (both packages and server): the changeset covers it, so no .server-changes/ file is needed. If the package change is internal and needs no changeset but the server change is user-facing, add a .server-changes/ file for it.
Package-only PRs: Just add a changeset as usual, when the change is user-facing.
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 - 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.
Writing guidance
These entries are public-facing - they ship verbatim in user-visible release notes. A few rules to keep them clean:
- Write for the user, not the reviewer. Lead with what the user notices or has to do. If a reader who doesn't know the codebase can't tell what changed for them, rewrite it.
- One sentence is usually enough. The body is the bullet in the changelog. If you need a paragraph, you're probably describing the implementation rather than the change.
- Describe behavior, not implementation. Skip internal scopes, middleware names, library specifics, framework internals. Users care about what's different for them, not how it's wired.
- Never name internal tools or infra. Observability stacks, internal services, infra components, monitoring backends, CI surfaces, AWS specifics - none of these belong in user-facing notes.
Before / after:
- ❌ "The image verification step now parses the manifest's layer media types and returns a new result the finalizer rejects." (describes the wiring; a user can't act on it)
- ✅ "Deploying with an outdated CLI could produce an image that fails to start on every run. These deploys are now stopped before going live, with a message asking you to upgrade the CLI and re-deploy." (what the user sees and does)
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