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HTTP_STATUS_REQUEST_TOO_LARGE
The limit can be enforced by the origin, reverse proxy, API gateway, or application framework. The response may include Retry-After when the condition is temporary, but many limits are configuration policies.
Measure the encoded byte size, including multipart overhead. Reduce the payload, split uploads, or change the documented server-side limit rather than retrying the unchanged request.
Operational meaning of HTTP 413 for HTTP_STATUS_REQUEST_TOO_LARGE
HTTP 413 (this result) is a client-error response. AllStat records its meaning as “413 Payload Too Large”. Interpret it with the request method, selected representation, response headers, and the specification or product that defines the code; the number alone does not prove that application work completed.
Client and server handling
- Treat this result as a condition visible at the request boundary; inspect authentication, syntax, preconditions, routing, and resource state before retrying.
- preserve the response body and challenge or retry-related headers because they often carry the actionable reason.
- automatic retry is safe only when the method and status contract allow it and the request has been corrected.
For telemetry, record HTTP 413, method, authority, route template rather than secrets, response headers relevant to caching or retry, latency, upstream identity, and whether the response originated at the application or an intermediary.
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