vectordotdev/vector · info

a valid HTTP/1 URI is valid as an HTTP URI

Error message

a valid HTTP/1 URI is valid as an HTTP URI

What it means

This panic fires in `protocol_endpoint` when re-parsing an already-valid `hyper::header::Uri` (HTTP/1 flavor) into the `http` crate's `Uri` fails. Both types represent HTTP URIs with the same validity rules, so a URI valid in one is valid in the other; the expect asserts that assumption.

Solutions

1. Report as a bug to Vector with the endpoint URI that triggered it.
2. Check for mismatched hyper/http crate versions in a custom Vector build.
3. Ensure the sink endpoint URL is a plain, well-formed http/https URL in configuration.

// Validate endpoint URLs are plain http/https URLs in config.
let u = url::Url::parse(endpoint)?;
assert!(matches!(u.scheme(), "http" | "https"));

When it happens

Trigger: Any request processed by the http_v1 sink's `call` path passes through here; the panic only occurs if the crate-local Uri type accepts a string the `http::Uri` parser rejects (e.g. divergent grammar between crate versions).

Common situations: Could hypothetically appear after a crate version mismatch where hyper and http disagree on URI grammar (e.g. unusual schemes or authority forms).

Understand the failure class

Background: "This is a bug, please report it": internal invariant violations, unreachable panics, and SNH errors explained — this error's family across 47 libraries.

Related errors

• a validated HTTP endpoint is a valid `http 1` URI
• error creating request
• error creating request
• invalid parts
• building HTTP request failed unexpectedly

AI-assisted analysis of vectordotdev/vector@bdb87aeaa4 (2026-09-16). Data as JSON: /api/errors/c2a4e99d0cddfd15. Report an issue: GitHub.

Appendix: source

Thrown at src/sinks/util/http_v1.rs:189

                        &response.http_response.body()[..response
                            .http_response
                            .body()
                            .len()
                            .min(super::http::MAX_ERROR_BODY_BYTES)],
                    ),
                );
            }
            status
        },
        retry_strategy,
    )
}

fn protocol_endpoint(uri: &Uri) -> (String, String) {
    let uri = uri
        .to_string()
        .parse::<http::Uri>()
        .expect("a valid HTTP/1 URI is valid as an HTTP URI");
    super::uri::protocol_endpoint(uri)
}

View on GitHub (pinned to bdb87aeaa4)