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Bump Node heap limit for lint-no-typescript to avoid OOM in CI#90996

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ijjk merged 2 commits intocanaryfrom
lint-no-typescript-heap-limit
Mar 6, 2026
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Bump Node heap limit for lint-no-typescript to avoid OOM in CI#90996
ijjk merged 2 commits intocanaryfrom
lint-no-typescript-heap-limit

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@gaojude gaojude commented Mar 6, 2026

The lint job in CI has been hitting FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory during lint-eslint.

lint-no-typescript runs prettier-check, lint-eslint ., and lint-language in parallel via run-p. The lint-eslint script uses eslint.cli.config.mjs which enables type-checked rules with parserOptions.project: true — the config comment itself notes this "needs a lot of memory". Node's default heap limit caps around ~2-4GB regardless of available system memory, which isn't enough when the type-aware parser loads the full monorepo project graph.

This sets NODE_OPTIONS="--max-old-space-size=8192" on the lint-no-typescript script via cross-env. The env var inherits into all three run-p children, giving eslint the headroom it needs without touching CI workflow files.

@nextjs-bot nextjs-bot added the created-by: Next.js team PRs by the Next.js team. label Mar 6, 2026
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nextjs-bot commented Mar 6, 2026

Tests Passed

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Stats from current PR

✅ No significant changes detected

📊 All Metrics
📖 Metrics Glossary

Dev Server Metrics:

  • Listen = TCP port starts accepting connections
  • First Request = HTTP server returns successful response
  • Cold = Fresh build (no cache)
  • Warm = With cached build artifacts

Build Metrics:

  • Fresh = Clean build (no .next directory)
  • Cached = With existing .next directory

Change Thresholds:

  • Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
  • Size: Changes < 1KB AND < 1% are insignificant
  • All other changes are flagged to catch regressions

⚡ Dev Server

Metric Canary PR Change Trend
Cold (Listen) 455ms 455ms ▁▁▁▁▁
Cold (Ready in log) 437ms 437ms ▁▁▁▁▁
Cold (First Request) 1.222s 1.263s ▂▂▂▂▁
Warm (Listen) 456ms 457ms ▁▂▁▁▁
Warm (Ready in log) 441ms 442ms ▁▁▁▁▁
Warm (First Request) 355ms 346ms ▁▁▁▁▁
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 508ms 507ms ▁▁▁▁▁
Cold (Ready in log) 487ms 488ms ▅▄▁▅▅
Cold (First Request) 2.186s 2.195s ▃▃▁▃▆
Warm (Listen) 508ms 507ms ▁▁▁▁▁
Warm (Ready in log) 487ms 488ms ▅▆▁▅▅
Warm (First Request) 2.204s 2.238s ▄▅▁▄▇

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 3.743s 3.757s ▁▂▁▁▁
Cached Build 3.787s 3.704s ▁▂▁▁▁
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 15.963s 15.910s ▁▁▁▁▅
Cached Build 15.921s 15.986s ▁▁▁▁▅
node_modules Size 477 MB 477 MB ▁▁▁▁▁
📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **402 kB** → **402 kB** ✅ -31 B

80 files with content-based hashes (individual files not comparable between builds)

Server

Middleware
Canary PR Change
middleware-b..fest.js gzip 764 B 766 B
Total 764 B 766 B ⚠️ +2 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 451 B 450 B
Total 451 B 450 B ✅ -1 B

📦 Webpack

Client

Main Bundles
Canary PR Change
5528-HASH.js gzip 5.54 kB N/A -
6280-HASH.js gzip 59.5 kB N/A -
6335.HASH.js gzip 169 B N/A -
912-HASH.js gzip 4.59 kB N/A -
e8aec2e4-HASH.js gzip 62.6 kB N/A -
framework-HASH.js gzip 59.7 kB 59.7 kB
main-app-HASH.js gzip 256 B 253 B 🟢 3 B (-1%)
main-HASH.js gzip 39.1 kB 39.1 kB
webpack-HASH.js gzip 1.68 kB 1.68 kB
262-HASH.js gzip N/A 4.59 kB -
2889.HASH.js gzip N/A 169 B -
5602-HASH.js gzip N/A 5.55 kB -
6948ada0-HASH.js gzip N/A 62.6 kB -
9544-HASH.js gzip N/A 60.3 kB -
Total 233 kB 234 kB ⚠️ +763 B
Polyfills
Canary PR Change
polyfills-HASH.js gzip 39.4 kB 39.4 kB
Total 39.4 kB 39.4 kB
Pages
Canary PR Change
_app-HASH.js gzip 194 B 194 B
_error-HASH.js gzip 183 B 180 B 🟢 3 B (-2%)
css-HASH.js gzip 331 B 330 B
dynamic-HASH.js gzip 1.81 kB 1.81 kB
edge-ssr-HASH.js gzip 256 B 256 B
head-HASH.js gzip 351 B 352 B
hooks-HASH.js gzip 384 B 383 B
image-HASH.js gzip 580 B 581 B
index-HASH.js gzip 260 B 260 B
link-HASH.js gzip 2.51 kB 2.51 kB
routerDirect..HASH.js gzip 320 B 319 B
script-HASH.js gzip 386 B 386 B
withRouter-HASH.js gzip 315 B 315 B
1afbb74e6ecf..834.css gzip 106 B 106 B
Total 7.98 kB 7.98 kB ✅ -1 B

Server

Edge SSR
Canary PR Change
edge-ssr.js gzip 125 kB 125 kB
page.js gzip 256 kB 257 kB
Total 381 kB 382 kB ⚠️ +610 B
Middleware
Canary PR Change
middleware-b..fest.js gzip 617 B 614 B
middleware-r..fest.js gzip 156 B 155 B
middleware.js gzip 43.5 kB 43.7 kB
edge-runtime..pack.js gzip 842 B 842 B
Total 45.1 kB 45.3 kB ⚠️ +212 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 715 B 718 B
Total 715 B 718 B ⚠️ +3 B
Build Cache
Canary PR Change
0.pack gzip 4.07 MB 4.08 MB 🔴 +9.2 kB (+0%)
index.pack gzip 103 kB 103 kB
index.pack.old gzip 104 kB 105 kB
Total 4.28 MB 4.29 MB ⚠️ +10.4 kB

🔄 Shared (bundler-independent)

Runtimes
Canary PR Change
app-page-exp...dev.js gzip 322 kB 322 kB
app-page-exp..prod.js gzip 171 kB 171 kB
app-page-tur...dev.js gzip 322 kB 322 kB
app-page-tur..prod.js gzip 171 kB 171 kB
app-page-tur...dev.js gzip 319 kB 319 kB
app-page-tur..prod.js gzip 169 kB 169 kB
app-page.run...dev.js gzip 319 kB 319 kB
app-page.run..prod.js gzip 169 kB 169 kB
app-route-ex...dev.js gzip 70.9 kB 70.9 kB
app-route-ex..prod.js gzip 49.3 kB 49.3 kB
app-route-tu...dev.js gzip 70.9 kB 70.9 kB
app-route-tu..prod.js gzip 49.3 kB 49.3 kB
app-route-tu...dev.js gzip 70.5 kB 70.5 kB
app-route-tu..prod.js gzip 49.1 kB 49.1 kB
app-route.ru...dev.js gzip 70.5 kB 70.5 kB
app-route.ru..prod.js gzip 49 kB 49 kB
dist_client_...dev.js gzip 324 B 324 B
dist_client_...dev.js gzip 326 B 326 B
dist_client_...dev.js gzip 318 B 318 B
dist_client_...dev.js gzip 317 B 317 B
pages-api-tu...dev.js gzip 43.3 kB 43.3 kB
pages-api-tu..prod.js gzip 32.9 kB 32.9 kB
pages-api.ru...dev.js gzip 43.2 kB 43.2 kB
pages-api.ru..prod.js gzip 32.9 kB 32.9 kB
pages-turbo....dev.js gzip 52.6 kB 52.6 kB
pages-turbo...prod.js gzip 38.5 kB 38.5 kB
pages.runtim...dev.js gzip 52.6 kB 52.6 kB
pages.runtim..prod.js gzip 38.5 kB 38.5 kB
server.runti..prod.js gzip 62 kB 62 kB
Total 2.84 MB 2.84 MB
📎 Tarball URL
https://vercel-packages.vercel.app/next/commits/da83deaf91e474aa78da2442d321d349eb9dc49c/next

@ijjk ijjk merged commit a6f9167 into canary Mar 6, 2026
284 of 287 checks passed
@ijjk ijjk deleted the lint-no-typescript-heap-limit branch March 6, 2026 20:05
sokra pushed a commit that referenced this pull request Mar 6, 2026
The `lint` job in CI has been hitting `FATAL ERROR: Ineffective
mark-compacts near heap limit Allocation failed - JavaScript heap out of
memory` during `lint-eslint`.

`lint-no-typescript` runs `prettier-check`, `lint-eslint .`, and
`lint-language` in parallel via `run-p`. The `lint-eslint` script uses
`eslint.cli.config.mjs` which enables type-checked rules with
`parserOptions.project: true` — the config comment itself notes this
"needs a lot of memory". Node's default heap limit caps around ~2-4GB
regardless of available system memory, which isn't enough when the
type-aware parser loads the full monorepo project graph.

This sets `NODE_OPTIONS="--max-old-space-size=8192"` on the
`lint-no-typescript` script via `cross-env`. The env var inherits into
all three `run-p` children, giving eslint the headroom it needs without
touching CI workflow files.
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