JuliusBrussee/caveman · error
trailing JSON
Error message
trailing JSON
What it means
Error "trailing JSON" thrown in JuliusBrussee/caveman.
Source
Thrown at cacheengine/cachebench/corpus.go:310
return nil, errors.New("cachebench: trailing JSON after Hugging Face rows object")
}
if !foundRows {
return nil, errors.New("cachebench: Hugging Face response has no rows field")
}
return rows, nil
}
func decodeOneJSON(raw []byte, destination any) error {
if !validUniqueJSONObject(raw) {
return errors.New("duplicate or invalid JSON")
}
decoder := json.NewDecoder(bytes.NewReader(raw))
if err := decoder.Decode(destination); err != nil {
return err
}
var trailing any
if err := decoder.Decode(&trailing); err != io.EOF {
return errors.New("trailing JSON")
}
return nil
}
func validateCorpusWire(wire lmcacheRowWire, index int, limits CorpusLimits) (CorpusRow, error) {
if !validBoundedText(wire.SessionID, 2048, false) || !validBoundedText(wire.Model, 512, false) {
return CorpusRow{}, errors.New("session_id and model required")
}
if wire.OutputLength < 0 || math.IsNaN(wire.PreGap) || math.IsInf(wire.PreGap, 0) || wire.PreGap < 0 || wire.PreGap > maxCorpusGapSeconds {
return CorpusRow{}, fmt.Errorf("output_length must be non-negative and pre_gap must be within 0..%d seconds", maxCorpusGapSeconds)
}
if len(wire.Input) == 0 || !json.Valid(wire.Input) {
return CorpusRow{}, errors.New("input must be valid non-empty message array")
}
if len(wire.SessionID)+len(wire.Model)+len(wire.Input) > limits.MaxRowBytes {
return CorpusRow{}, fmt.Errorf("row exceeds byte limit %d", limits.MaxRowBytes)
}
var messages []CorpusMessageView on GitHub (pinned to 27d5a3981a)
Solutions
- Remove trailing data after the JSON value.
When it happens
Trigger: Thrown at cacheengine/cachebench/corpus.go:310 when the library encounters an invalid state.
Common situations: See trigger scenarios.
AI-assisted analysis of JuliusBrussee/caveman@27d5a3981a (2026-08-15).
Data as JSON: /api/errors/6b10c2793a5931dc.
Report an issue: GitHub.