sqlmapproject/sqlmap · error · OperationalError

MonetDB login did not converge

Error message

MonetDB login did not converge

What it means

Error "MonetDB login did not converge" thrown in sqlmapproject/sqlmap.

Source

Thrown at extra/dbwire/monetdb.py:215

    try:
        for _ in range(10):  # bounded: merovingian proxy stage + optional redirect + mserver challenge
            block = _getblock(sock)
            if block == "":  # login accepted
                break
            if block[0] == "^":  # redirect
                url = block[1:].strip()
                m = re.match(r"mapi:monetdb://([^:/]+):(\d+)/(\S*)", url)
                if m and (m.group(1) != host or int(m.group(2)) != port):
                    sock.close()
                    host, port, database = m.group(1), int(m.group(2)), m.group(3) or database
                    sock = socket.create_connection((host, port), timeout=connect_timeout)
                    keepalive(sock)
                continue  # merovingian proxy redirect: keep reading the next challenge on this socket
            if block[0] == "!":
                raise OperationalError("(remote) %s" % block[1:].strip())
            _putblock(sock, _challenge_response(block, user, password, database))
        else:
            raise OperationalError("MonetDB login did not converge")
    except (OperationalError, NotSupportedError, InterfaceError):
        try:
            sock.close()
        except Exception:
            pass
        raise
    except (socket.error, socket.timeout) as ex:  # I/O error during the login/redirect exchange
        try:
            sock.close()
        except Exception:
            pass
        raise OperationalError("connection error: %s" % ex)

    connection = Connection(sock)
    try:
        connection._command("Xreply_size -1\n")  # disable row paging so a whole result set is returned at once
    except (socket.error, socket.timeout) as ex:
        connection.close()

View on GitHub (pinned to 0a35b20e39)

When it happens

Trigger: Thrown at extra/dbwire/monetdb.py:215 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of sqlmapproject/sqlmap@0a35b20e39 (2026-08-26). Data as JSON: /api/errors/2bc2590146cdfcad. Report an issue: GitHub.