http.server.request.size

HTTP request body size

Dimensions:None

Technical Annotations (24)

Configuration Parameters (4)

max-request-sizerecommended: 10MB

default maximum request payload size

max_part_sizerecommended: 50 * 1024 * 1024

Form parser size limit; examples show 10MB or 50MB for larger uploads

max_file_sizerecommended: 20 * 1024 * 1024

SpooledTemporaryFile max_size parameter; controls memory buffer size before spilling to disk

starlette.versionrecommended: >=0.40.0

version 0.40.0 fixes unbounded memory buffering vulnerability

Error Signatures (6)

ValueError: unexpected end of streamexception

Exception on /predict [POST]log pattern

Part exceeded maximum size of 1024KB.log pattern

400http status

OOM errorerror code

CVE-2024-47874error code

CLI Commands (1)

curl http://localhost:8000 -F 'big=</dev/urandom'diagnostic

Technical References (13)

MultiFileInput adaptercomponentwerkzeug.formparsercomponent/predictcomponentStreamingResponsecomponentclient_max_body_sizecomponentASGI receive callablecomponentAPM transactionconceptMultiPartParsercomponentrequest.form()componentSpooledTemporaryFilecomponentmultipart/form-dataprotocolASGIprotocolfilenamecomponent

Related Insights (7)

Request size limits prevent resource exhaustioninfo

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Multipart form parsing failure under concurrent loadwarning

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Unbounded upload size exhausts memory in Starlette applicationswarning

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APM transaction timing excludes request body streaming latencywarning

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Form data exceeding 1MB causes HTTP 400 errors since Starlette 0.40.0warning

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Unbounded memory allocation from multipart form data without filename causes OOMcritical

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Unbounded form field buffering causes memory exhaustioncritical

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