t8y2/dbx · error

password: %w

Error message

password: %w

What it means

This error means the password field of the Hadoop delegation token could not be read after the identifier field. The token's binary layout is a sequence of VInt-length-prefixed byte arrays; a failure or truncation at the second field triggers this wrapped error. It indicates a malformed or truncated token.

Source

Thrown at agents/drivers/hive-go/config.go:784

		base64.RawStdEncoding,
		base64.StdEncoding,
	} {
		decoded, decodeErr = encoding.DecodeString(encoded)
		if decodeErr == nil {
			break
		}
	}
	if decodeErr != nil {
		return nil, nil, decodeErr
	}
	reader := strings.NewReader(string(decoded))
	identifier, err := readHadoopByteArray(reader)
	if err != nil {
		return nil, nil, fmt.Errorf("identifier: %w", err)
	}
	password, err := readHadoopByteArray(reader)
	if err != nil {
		return nil, nil, fmt.Errorf("password: %w", err)
	}
	if len(identifier) == 0 || len(password) == 0 {
		return nil, nil, errors.New("token identifier and password must be non-empty")
	}
	if _, err := readHadoopByteArray(reader); err != nil {
		return nil, nil, fmt.Errorf("kind: %w", err)
	}
	if _, err := readHadoopByteArray(reader); err != nil {
		return nil, nil, fmt.Errorf("service: %w", err)
	}
	if reader.Len() != 0 {
		return nil, nil, errors.New("token contains trailing data")
	}
	return identifier, password, nil
}

func readHadoopByteArray(reader io.ByteReader) ([]byte, error) {
	length, err := readHadoopVInt(reader)

View on GitHub (pinned to c0390bff16)

Solutions

1. Re-fetch a fresh delegation token and pass the full string unmodified
2. Confirm the token was not cut off when stored in environment variables or secret stores
3. Validate token structure offline before configuring the driver

if err != nil && strings.Contains(err.Error(), "password:") {
	return fmt.Errorf("token truncated at password field: %w", err)
}

When it happens

Trigger: A delegation token whose payload ends between the identifier and password fields, or whose password field length prefix overruns the remaining bytes.

Common situations: Truncated token copy/paste; token stored in a secret manager that altered encoding; mismatched token format from a non-Hive Hadoop token.

Related errors

• token identifier and password must be non-empty
• token contains trailing data
• identifier: %w
• kind: %w
• service: %w

AI-assisted analysis of t8y2/dbx@c0390bff16 (2026-09-05). Data as JSON: /api/errors/aa0de8c126e8edcc. Report an issue: GitHub.