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fix: settle aborted parallel steps before completing abortParallelWorkflow - #2244
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📊 Benchmark Results
workflow with no steps💻 Local Development
▲ Production (Vercel)
workflow with 1 step💻 Local Development
▲ Production (Vercel)
workflow with 10 sequential steps💻 Local Development
▲ Production (Vercel)
workflow with 25 sequential steps💻 Local Development
▲ Production (Vercel)
workflow with 50 sequential steps💻 Local Development
▲ Production (Vercel)
Promise.all with 10 concurrent steps💻 Local Development
▲ Production (Vercel)
Promise.all with 25 concurrent steps💻 Local Development
▲ Production (Vercel)
Promise.all with 50 concurrent steps💻 Local Development
▲ Production (Vercel)
Promise.race with 10 concurrent steps💻 Local Development
▲ Production (Vercel)
Promise.race with 25 concurrent steps💻 Local Development
▲ Production (Vercel)
Promise.race with 50 concurrent steps💻 Local Development
▲ Production (Vercel)
workflow with 10 sequential data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
workflow with 25 sequential data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
workflow with 50 sequential data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
workflow with 10 concurrent data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
workflow with 25 concurrent data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
workflow with 50 concurrent data payload steps (10KB)💻 Local Development
▲ Production (Vercel)
Stream Benchmarks(includes TTFB metrics)workflow with stream💻 Local Development
▲ Production (Vercel)
stream pipeline with 5 transform steps (1MB)💻 Local Development
▲ Production (Vercel)
10 parallel streams (1MB each)💻 Local Development
▲ Production (Vercel)
fan-out fan-in 10 streams (1MB each)💻 Local Development
▲ Production (Vercel)
SummaryFastest Framework by WorldWinner determined by most benchmark wins
Fastest World by FrameworkWinner determined by most benchmark wins
Column Definitions
Worlds:
❌ Some benchmark jobs failed:
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🧪 E2E Test Results❌ Some tests failed Summary
❌ Failed Tests▲ Vercel Production (5 failed)astro (1 failed):
nextjs-turbopack (1 failed):
nitro (1 failed):
vite (2 failed):
Details by Category❌ ▲ Vercel Production
✅ 💻 Local Development
✅ 📦 Local Production
✅ 🐘 Local Postgres
✅ 🪟 Windows
✅ 📋 Other
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Pull request overview
This PR updates the abort-parallel E2E workflow to ensure that once the workflow times out and triggers an abort, it waits for the in-flight parallel steps to observe the abort and settle before returning. This prevents “dangling” parallel work from keeping the run open until the long steps reach their natural completion, and it strengthens the E2E assertion to prove all branches actually took the abort path.
Changes:
- Keep the three parallel
longStep()executions alive via a namedparallelStepspromise so it can be awaited after timeout/abort. - On timeout, abort the controller and then
await parallelStepsbefore returning, including the settled results in the return value. - Update the E2E test to assert that the workflow returns
results: ["aborted", "aborted", "aborted"]for the timeout path.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| workbench/example/workflows/99_e2e.ts | Persists the parallel steps promise and awaits it after abort on timeout, returning the settled step results. |
| packages/core/e2e/e2e.test.ts | Strengthens the assertion to verify all parallel steps actually observed the abort and returned "aborted". |
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VaguelySerious
approved these changes
Jun 10, 2026
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No backport to The To override, re-run the Backport to stable workflow manually via |
pranaygp added a commit
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Jun 11, 2026
…hook-ready * origin-https/main: (119 commits) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) Patch vulnerable package dependencies (#2301) Deprecate DurableAgent and update it with WorkflowAgent in v5 docs (#2285) [codex] Fix partial world-local exclusive writes (#2296) ... # Conflicts: # packages/core/src/runtime.ts # packages/core/src/runtime/suspension-handler.ts
pranaygp added a commit
that referenced
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Jun 11, 2026
…t-race-eager-wait * origin/main: docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345)
pranaygp added a commit
that referenced
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Jun 11, 2026
…docs-run-idempotency * origin-https/main: (115 commits) [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) ... # Conflicts: # docs/content/docs/v4/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/agent-patterns/durable-agent.mdx
pranaygp added a commit
that referenced
this pull request
Jun 11, 2026
* origin/main: [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325)
pranaygp added a commit
that referenced
this pull request
Jun 12, 2026
…ry-2 * origin/main: Version Packages (beta) (#2364) Animate in-progress segments in the timeline (#2383) Render queued span time as a lead-in connector on the trace timeline. (#2381) fix(docs): right-align sidebar folder carets consistently (#2377) [core] Add wire-level framing for byte streams (#1853) docs: move World SDK and getWorld under workflow/runtime, split out workflow/observability (#2375) Replace hook.hasConflict with hook.getConflict() returning the conflicting Run (#2373) ci: use claude-fable-5 for backport AI model (#2370) Add `hook.hasConflict` for early hook conflict detection (#2015) [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244)
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Summary
longStep()promises alive as a named promise so the workflow can await them after abortingAbortController > abortParallelWorkflow: abort cancels all parallel stepsreturns["aborted", "aborted", "aborted"]Validation
git diff --checkWORKFLOW_PUBLIC_MANIFEST=1 pnpm devinworkbench/nextjs-turbopackDEPLOYMENT_URL="http://localhost:3000" APP_NAME="nextjs-turbopack" pnpm vitest run packages/core/e2e/e2e.test.ts -t "abortParallelWorkflow: abort cancels all parallel steps"Notes
Workflow "workflow//./workflows/99_e2e//abortParallelWorkflow" is not registered in the current deployment.Module not found: Can't resolve <dynamic>frompackages/core/dist/runtime/world.js.