NextJS Build hungs.. with sourcemap enabled #16259
Description
Is there an existing issue for this?
- I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
- I have reviewed the documentation https://docs.sentry.io/
- I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/nextjs
SDK Version
"@sentry/nextjs": "^9.17.0",
Framework Version
"next": "15.3.2", "react": "19.1.0",
Link to Sentry event
No response
Reproduction Example/SDK Setup
I recently added sentry to my nextjs app.
{
org: process.env.SENTRY_ORG,
project: process.env.SENTRY_PROJECT,
silent: !process.env.CI, // Only print logs for uploading source maps in CI
widenClientFileUpload: false,
sourcemaps: {
disable:
process.env.NODE_ENV === "development" ||
process.env.VERCEL_ENV === "preview",
},
// Route browser requests to Sentry through a Next.js rewrite to circumvent ad-blockers.
// This can increase your server load as well as your hosting bill.
// Note: Check that the configured route will not match with your Next.js middleware, otherwise reporting of client-
// side errors will fail.
tunnelRoute: "/monitoring",
// Automatically tree-shake Sentry logger statements to reduce bundle size
disableLogger: true,
// Enables automatic instrumentation of Vercel Cron Monitors. (Does not yet work with App Router route handlers.)
// See the following for more information:
// https://docs.sentry.io/product/crons/
// https://vercel.com/docs/cron-jobs
automaticVercelMonitors: true,
} satisfies SentryBuildOptionsThe build speed is almost unusable, I think it's a bug.
As you can see,
- production -> sourcemap on
- preview -> sourcemap off
I've turned off the widenClientFileUpload for faster build, which does not resolve the issue.
Before sentry, it was about 5min for build on vercel,
After sentry
- preview (sourcemap off) takes up to 7min (resonable)
- production exceeds the max build duration 45min.
The build logs says,.
........
~/ff24b331-ad6e-4070-940f-aef956132cf6-274.js.map (debug id ff24b331-ad6e-4070-940f-aef956132cf6)
~/fff82f28-0ad6-47e8-8633-da46db4abc42-130.js.map (debug id fff82f28-0ad6-47e8-8633-da46db4abc42)
[@sentry/nextjs - Node.js] Info: Successfully uploaded source maps to Sentry
But after the "[@sentry/nextjs - Node.js] Info: Successfully uploaded source maps to Sentry"
no logs will appear, and hungs for the next 30mins, build fails.
what is happening?
Steps to Reproduce
repo: https://github.com/gridaco/grida (/editor)
pnpm why @sentry/webpack-plugin
pnpm why @sentry/webpack-plugin
Legend: production dependency, optional only, dev only
[email protected] /Users/softmarshmallow/Documents/Apps/grida/grida/editor (PRIVATE)
dependencies:
@sentry/nextjs 9.17.0
└── @sentry/webpack-plugin 3.3.1