docs: document MAX_REQUEST_BODY_SIZE_TO_REPAIR_MB env var - #424
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Document the new request-body repair size cap added in BerriAI/litellm#31497. The proxy's JSON repair fallback runs two full-body regex passes that block the event loop on large malformed payloads; this env var bounds the body size LiteLLM will attempt to repair before returning a 400. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
Documents the new
MAX_REQUEST_BODY_SIZE_TO_REPAIR_MBenvironment variable introduced in BerriAI/litellm#31497, adding it to the proxy environment variables reference indocs/proxy/config_settings.md.Why
When the proxy fails to parse a request body as JSON, it falls back to a surrogate-repair path that runs two full-body regex passes to fix invalid surrogate escapes. On multi-MB malformed payloads that work blocks the event loop for hundreds of ms, which on single-worker pods stalls co-tenant requests. The new env var caps the body size LiteLLM will attempt to repair; above the cap it returns a 400 immediately, and bodies at or below it are repaired exactly as before. Default is 1MB, env-overridable, and set to 0 to disable the cap.
Source PR: BerriAI/litellm#31497 (LIT-3541).
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