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<!-- ccr-slack-attribution --> _Requested by **Lakshan Perera** · [Slack thread](https://supabase.slack.com/archives/C023E4L60R3/p1784055775538959?thread_ts=1784055775.538959&cid=C023E4L60R3)_ ## I have read the [CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md) file. YES ## What kind of change does this PR introduce? Docs update. ## What is the current behavior? Both the "Edge Function bundle size issues" troubleshooting page and the Edge Functions "Limits" page stated only a single **20 MB** limit. In practice, that 20 MB figure applies only to **local bundling** with the Supabase CLI. When a function is deployed via the **Management API or Dashboard**, bundling runs server-side and is capped at **5 MB** due to an infrastructure (Lambda) limit. Customers deploying that way were surprised to hit an error like `Function source code exceeds the maximum deployment size (5 MB). Reduce the size of your function and try again.` even though the docs implied 20 MB was available. ## What is the new behavior? Both pages now state the distinction explicitly: - **Local bundling (Supabase CLI):** up to **20 MB**. - **Server-side bundling (Management API or Dashboard):** up to **5 MB**. The troubleshooting page also adds a "Deploying larger functions" section pointing customers at the workaround: if a function is under 20 MB but over the 5 MB server-side limit, bundle it locally by running `supabase functions deploy` with the `--use-docker` flag to force local bundling and get the higher limit. ## Additional context **How / files changed:** - `apps/docs/content/troubleshooting/edge-function-bundle-size-issues.mdx` — rewrote the intro to describe both limits, added the "Deploying larger functions" workaround section, and fixed the frontmatter `keywords` (replaced `"10MB"` with `"5MB"` and `"20MB"`). - `apps/docs/content/guides/functions/limits.mdx` — updated the "Maximum Function Size" line to list both the 20 MB local and 5 MB server-side limits. Before, both pages said only 20 MB, so customers deploying via the API/Dashboard were surprised by a 5 MB error; after, both pages state the 5 MB server-side vs 20 MB local distinction and point to local bundling as the workaround. --- _Generated by [Claude Code](https://claude.ai/code/session_019bBXmQTRBWJbo3UTpfjPLU)_ Co-authored-by: Claude <noreply@anthropic.com>
44 lines
2.1 KiB
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44 lines
2.1 KiB
Plaintext
---
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id: 'functions-limits'
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title: 'Limits'
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description: "Limits applied Edge Functions in Supabase's hosted platform."
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subtitle: "Limits applied Edge Functions in Supabase's hosted platform."
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---
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## Runtime limits
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- Maximum Memory: 256MB
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- Maximum Duration (Wall clock limit):
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This is the duration an Edge Function worker will stay active. During this period, a worker can serve multiple requests or process background tasks.
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- Free plan: 150s
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- Paid plans: 400s
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- Maximum CPU Time: 2s (Amount of actual time spent on the CPU per request - does not include async I/O.)
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- Request idle timeout: 150s (If an Edge Function doesn't send a response before the timeout, 504 Gateway Timeout will be returned)
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## Platform limits
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- Maximum Function Size: 20MB (bundled locally via the CLI) or 5MB (bundled server-side, e.g. via the Management API or Dashboard)
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- Maximum no. of Functions per project:
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- Free: 100
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- Pro: 500
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- Team: 1000
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- Enterprise: Unlimited
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- Maximum log message length: 10,000 characters
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- Log event threshold: 100 events per 10 seconds
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- Recursive/Nested Function Calling: ~5000 requests per minute [more details](/docs/guides/functions/recursive-functions)
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### Secrets
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- Maximum number of secrets per project: **100**
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- Secret name length: up to **256** characters
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- Maximum secret size: **48 KiB** (**24,576** characters)
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- Names must NOT start with the prefix `SUPABASE_` (this prefix is reserved).
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## Other limits & restrictions
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- Outgoing connections to ports `25` and `587` are not allowed.
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- Serving of HTML content is only supported with [custom domains](/docs/reference/cli/supabase-domains) (Otherwise `GET` requests that return `text/html` will be rewritten to `text/plain`).
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- Web Worker API (or Node `vm` API) are not available.
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- Static files cannot be deployed using the API flag. You need to build them with [Docker on the CLI](/docs/guides/functions/quickstart#step-6-deploy-to-production).
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- Node Libraries that require multithreading are not supported. Examples: [`libvips`](https://github.com/libvips/libvips), [sharp](https://github.com/lovell/sharp).
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