influxdata/influxdb · error · Error

hyper http error

Error message

hyper http error: {0}

What it means

Wraps hyper::http::Error, i.e. failures that occur when hyper itself fails to construct or parse an HTTP message (invalid request line, malformed headers, invalid URI) inside the influxdb3_server HTTP API. It surfaces as 'hyper http error: ...' and typically yields a 400-level response.

Solutions

1. Check the inner hyper message to see which part of the request was invalid
2. Verify the client speaks plain HTTP to the configured bind port (default 8181)
3. Test with curl to rule out the client library as the cause
4. Remove/fix proxies or middleware that modify the request line or headers

if (!target.startsWith("http://") && !target.startsWith("https://")) throw new Error("invalid target");

try { const r = await fetch(target); } catch (e) {
  if (String(e).includes("hyper http error")) {
    // inspect request construction: URI, headers; retry with curl-verified request
  }
}

When it happens

Trigger: Malformed HTTP requests reaching the server: invalid request targets/URIs, oversized or invalid headers that hyper's HTTP/1 parser rejects.

Common situations: Clients with buggy header generation; sending to the wrong port with a non-HTTP protocol; HTTP/2-only clients hitting an HTTP/1 endpoint; broken intermediaries rewriting requests.

Understand the failure class

Background: 'Something went wrong' / 'Request failed (500)' / 'HTTP error! status: 404' — what failed HTTP requests actually mean and how to find the real cause — this error's family across 28 libraries.

Related errors

• hyper error
• to str error
• arrow error
• Authorization header was malformed, the request was not in…
• body content is not valid utf8

AI-assisted analysis of influxdata/influxdb@06200ef96b (2026-09-19). Data as JSON: /api/errors/a4d9af59853ad66e. Report an issue: GitHub.

Appendix: source

Thrown at influxdb3_server/src/http.rs:291

    MissingQueryV1Params,

    /// MIssing parameters for write
    #[error("missing query parameter 'db'")]
    MissingWriteParams,

    #[error("the mime type specified was not valid UTF8: {0}")]
    NonUtf8MimeType(#[from] FromUtf8Error),

    /// Serde decode error
    #[error("serde error: {0}")]
    SerdeUrlDecoding(#[from] serde_urlencoded::de::Error),

    /// Arrow error
    #[error("arrow error: {0}")]
    Arrow(#[from] arrow::error::ArrowError),

    /// Hyper error
    #[error("hyper http error: {0}")]
    Hyper(#[from] hyper::http::Error),

    /// WriteBuffer error
    #[error("write buffer error: {0}")]
    WriteBuffer(#[from] influxdb3_write::write_buffer::Error),

    /// Persister error
    #[error("persister error: {0}")]
    Persister(#[from] influxdb3_write::persister::PersisterError),

    // ToStrError
    #[error("to str error: {0}")]
    ToStr(#[from] hyper::header::ToStrError),

    // SerdeJsonError
    #[error("serde json error: {0}")]
    SerdeJson(#[from] serde_json::Error),

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