feat: Implement event loop instrumentation

[sradevski]

Summary

Add Event loop instrumentation support. This should make it easier to detect a common issue - the event loop getting blocked resulting in 503s and restarts.

I still need to do some testing, but code-wise it can be reviewed.

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[changeset-bot]

⚠️ No Changeset found

Latest commit: 8715893

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[sradevski]

/snapshot-this

[sradevski]

/snapshot-this

[sradevski]

/snapshot-this

[github-actions]

🚀 A snapshot release has been made for this PR

Test the snapshots by updating your package.json with the newly published versions:

yarn add @medusajs/admin-bundler@2.13.6-snapshot-20260330084132

yarn add @medusajs/admin-sdk@2.13.6-snapshot-20260330084132

yarn add @medusajs/admin-shared@2.13.6-snapshot-20260330084132

yarn add @medusajs/admin-vite-plugin@2.13.6-snapshot-20260330084132

yarn add @medusajs/dashboard@2.13.6-snapshot-20260330084132

yarn add create-medusa-app@2.13.6-snapshot-20260330084132

yarn add @medusajs/cli@2.13.6-snapshot-20260330084132

yarn add medusa-dev-cli@2.13.6-snapshot-20260330084132

yarn add @medusajs/medusa-oas-cli@2.13.6-snapshot-20260330084132

yarn add @medusajs/core-flows@2.13.6-snapshot-20260330084132

yarn add @medusajs/framework@2.13.6-snapshot-20260330084132

yarn add @medusajs/js-sdk@2.13.6-snapshot-20260330084132

yarn add @medusajs/modules-sdk@2.13.6-snapshot-20260330084132

yarn add @medusajs/orchestration@2.13.6-snapshot-20260330084132

yarn add @medusajs/types@2.13.6-snapshot-20260330084132

yarn add @medusajs/utils@2.13.6-snapshot-20260330084132

yarn add @medusajs/workflows-sdk@2.13.6-snapshot-20260330084132

yarn add @medusajs/deps@2.13.6-snapshot-20260330084132

yarn add @medusajs/icons@2.13.6-snapshot-20260330084132

yarn add @medusajs/ui@4.1.6-snapshot-20260330084132

yarn add @medusajs/ui-preset@2.13.6-snapshot-20260330084132

yarn add @medusajs/medusa@2.13.6-snapshot-20260330084132

yarn add @medusajs/telemetry@2.13.6-snapshot-20260330084132

yarn add @medusajs/test-utils@2.13.6-snapshot-20260330084132

yarn add @medusajs/analytics@2.13.6-snapshot-20260330084132

yarn add @medusajs/api-key@2.13.6-snapshot-20260330084132

yarn add @medusajs/auth@2.13.6-snapshot-20260330084132

yarn add @medusajs/cache-inmemory@2.13.6-snapshot-20260330084132

yarn add @medusajs/cache-redis@2.13.6-snapshot-20260330084132

yarn add @medusajs/caching@2.13.6-snapshot-20260330084132

yarn add @medusajs/cart@2.13.6-snapshot-20260330084132

yarn add @medusajs/currency@2.13.6-snapshot-20260330084132

yarn add @medusajs/customer@2.13.6-snapshot-20260330084132

yarn add @medusajs/event-bus-local@2.13.6-snapshot-20260330084132

yarn add @medusajs/event-bus-redis@2.13.6-snapshot-20260330084132

yarn add @medusajs/file@2.13.6-snapshot-20260330084132

yarn add @medusajs/fulfillment@2.13.6-snapshot-20260330084132

yarn add @medusajs/index@2.13.6-snapshot-20260330084132

yarn add @medusajs/inventory@2.13.6-snapshot-20260330084132

yarn add @medusajs/link-modules@2.13.6-snapshot-20260330084132

yarn add @medusajs/locking@2.13.6-snapshot-20260330084132

yarn add @medusajs/notification@2.13.6-snapshot-20260330084132

yarn add @medusajs/order@2.13.6-snapshot-20260330084132

yarn add @medusajs/payment@2.13.6-snapshot-20260330084132

yarn add @medusajs/pricing@2.13.6-snapshot-20260330084132

yarn add @medusajs/product@2.13.6-snapshot-20260330084132

yarn add @medusajs/promotion@2.13.6-snapshot-20260330084132

yarn add @medusajs/analytics-local@2.13.6-snapshot-20260330084132

yarn add @medusajs/analytics-posthog@2.13.6-snapshot-20260330084132

yarn add @medusajs/auth-emailpass@2.13.6-snapshot-20260330084132

yarn add @medusajs/auth-github@2.13.6-snapshot-20260330084132

yarn add @medusajs/auth-google@2.13.6-snapshot-20260330084132

yarn add @medusajs/caching-redis@2.13.6-snapshot-20260330084132

yarn add @medusajs/file-local@2.13.6-snapshot-20260330084132

yarn add @medusajs/file-s3@2.13.6-snapshot-20260330084132

yarn add @medusajs/fulfillment-manual@2.13.6-snapshot-20260330084132

yarn add @medusajs/locking-postgres@2.13.6-snapshot-20260330084132

yarn add @medusajs/locking-redis@2.13.6-snapshot-20260330084132

yarn add @medusajs/notification-local@2.13.6-snapshot-20260330084132

yarn add @medusajs/notification-sendgrid@2.13.6-snapshot-20260330084132

yarn add @medusajs/payment-stripe@2.13.6-snapshot-20260330084132

yarn add @medusajs/rbac@2.13.6-snapshot-20260330084132

yarn add @medusajs/region@2.13.6-snapshot-20260330084132

yarn add @medusajs/sales-channel@2.13.6-snapshot-20260330084132

yarn add @medusajs/settings@2.13.6-snapshot-20260330084132

yarn add @medusajs/stock-location@2.13.6-snapshot-20260330084132

yarn add @medusajs/store@2.13.6-snapshot-20260330084132

yarn add @medusajs/tax@2.13.6-snapshot-20260330084132

yarn add @medusajs/translation@2.13.6-snapshot-20260330084132

yarn add @medusajs/user@2.13.6-snapshot-20260330084132

yarn add @medusajs/workflow-engine-inmemory@2.13.6-snapshot-20260330084132

yarn add @medusajs/workflow-engine-redis@2.13.6-snapshot-20260330084132

yarn add @medusajs/draft-order@2.13.6-snapshot-20260330084132

Latest commit: d9fd0f8

[medusa-os-bot]

After an initial review, a couple of things to address before this is ready:

Required changes:

• Add a changeset for @medusajs/medusa, @medusajs/framework, and @medusajs/deps — all three have source code changes and are missing a changeset entry. Run yarn changeset and use the feat(package-name): short description message format.
• Add tests for the new event loop instrumentation — new functionality in packages/ should include unit or integration tests.

Notes:

• The PR description mentions testing is still pending. Please update the description and mark the PR ready when it's fully tested.
• The dep proxy pattern for the new OTel packages (sdk-metrics, exporter-metrics-otlp-http, exporter-trace-otlp-http) is consistent with the existing approach — looks good there.