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RecursionError: maximum recursion depth exceeded in comparison #792

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MathiasDrapier opened this issue Mar 6, 2023 · 0 comments
Open

RecursionError: maximum recursion depth exceeded in comparison #792

MathiasDrapier opened this issue Mar 6, 2023 · 0 comments
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bug

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@MathiasDrapier
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Hello, I have a flask + flask_socketio server using eventlet, until now I never had a problem but for about a week now my server has stopped (http request flask and flask_socketio are down) I have to do it restart manually.
I was able to collect the logs and here is what I have:

2023-03-04 03:17:51,002 - root - ERROR - disconnect handler error
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 622, in _trigger_event
    return self.handlers[event](*args)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 807, in _handle_eio_disconnect
    self._handle_disconnect(eio_sid, n)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 709, in _handle_disconnect
    self._trigger_event('disconnect', namespace, sid)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 756, in _trigger_event
    return self.handlers[namespace][event](*args)
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 282, in _handler
    return self._handle_event(handler, message, namespace, sid,
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 790, in _handle_event
    environ = self.server.get_environ(sid, namespace=namespace)
RecursionError: maximum recursion depth exceeded

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 622, in _trigger_event
    return self.handlers[event](*args)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 807, in _handle_eio_disconnect
    self._handle_disconnect(eio_sid, n)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 709, in _handle_disconnect
    self._trigger_event('disconnect', namespace, sid)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 756, in _trigger_event
    return self.handlers[namespace][event](*args)
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 282, in _handler
    return self._handle_event(handler, message, namespace, sid,
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 828, in _handle_event
    ret = handler(*args)
  File "/usr/src/app/src/socketManager.py", line 104, in handle_disconnect
    emit('message', str(hcd), to=room)
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 901, in emit
    return socketio.emit(event, *args, namespace=namespace, to=to,
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 462, in emit
    self.server.emit(event, *args, namespace=namespace, to=to,
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 319, in emit
    self.manager.emit(event, data, namespace, room=room,
  File "/usr/local/lib/python3.9/site-packages/socketio/base_manager.py", line 172, in emit
    self.server._emit_internal(eio_sid, event, data, namespace, id)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 644, in _emit_internal
    self._send_packet(eio_sid, self.packet_class(
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 654, in _send_packet
    self.eio.send(eio_sid, encoded_packet)
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 232, in send
    socket.send(packet.Packet(packet.MESSAGE, data=data))
  File "/usr/local/lib/python3.9/site-packages/engineio/socket.py", line 85, in send
    if not self.check_ping_timeout():
  File "/usr/local/lib/python3.9/site-packages/engineio/socket.py", line 79, in check_ping_timeout
    self.close(wait=False, abort=False)
  File "/usr/local/lib/python3.9/site-packages/engineio/socket.py", line 132, in close
    self.server._trigger_event('disconnect', self.sid, run_async=False)
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 624, in _trigger_event
    self.logger.exception(event + ' handler error')
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1481, in exception
    self.error(msg, *args, exc_info=exc_info, **kwargs)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1475, in error
    self._log(ERROR, msg, args, **kwargs)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1577, in _log
    fn, lno, func, sinfo = self.findCaller(stack_info, stacklevel)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1519, in findCaller
    f = currentframe()
  File "/usr/local/lib/python3.9/logging/__init__.py", line 160, in <lambda>
    currentframe = lambda: sys._getframe(3)
RecursionError: maximum recursion depth exceeded while calling a Python object

During handling of the above exception, another exception occurred:

RecursionError: maximum recursion depth exceeded while calling a Python object

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 622, in _trigger_event
    return self.handlers[event](*args)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 807, in _handle_eio_disconnect
    self._handle_disconnect(eio_sid, n)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 709, in _handle_disconnect
    self._trigger_event('disconnect', namespace, sid)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 756, in _trigger_event
    return self.handlers[namespace][event](*args)
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 282, in _handler
    return self._handle_event(handler, message, namespace, sid,
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 828, in _handle_event
    ret = handler(*args)
  File "/usr/src/app/src/socketManager.py", line 104, in handle_disconnect
    emit('message', str(hcd), to=room)
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 901, in emit
    return socketio.emit(event, *args, namespace=namespace, to=to,
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 462, in emit
    self.server.emit(event, *args, namespace=namespace, to=to,
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 319, in emit
    self.manager.emit(event, data, namespace, room=room,
  File "/usr/local/lib/python3.9/site-packages/socketio/base_manager.py", line 172, in emit
    self.server._emit_internal(eio_sid, event, data, namespace, id)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 644, in _emit_internal
    self._send_packet(eio_sid, self.packet_class(
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 654, in _send_packet
    self.eio.send(eio_sid, encoded_packet)
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 232, in send
    socket.send(packet.Packet(packet.MESSAGE, data=data))
  File "/usr/local/lib/python3.9/site-packages/engineio/socket.py", line 85, in send
    if not self.check_ping_timeout():
  File "/usr/local/lib/python3.9/site-packages/engineio/socket.py", line 79, in check_ping_timeout
    self.close(wait=False, abort=False)
  File "/usr/local/lib/python3.9/site-packages/engineio/socket.py", line 132, in close
    self.server._trigger_event('disconnect', self.sid, run_async=False)
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 624, in _trigger_event
    self.logger.exception(event + ' handler error')
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1481, in exception
    self.error(msg, *args, exc_info=exc_info, **kwargs)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1475, in error
    self._log(ERROR, msg, args, **kwargs)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1589, in _log
    self.handle(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1599, in handle
    self.callHandlers(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1661, in callHandlers
    hdlr.handle(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 952, in handle
    self.emit(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1187, in emit
    StreamHandler.emit(self, record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1083, in emit
    msg = self.format(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 927, in format
    return fmt.format(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 671, in format
    record.exc_text = self.formatException(record.exc_info)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 621, in formatException
    traceback.print_exception(ei[0], ei[1], tb, None, sio)
  File "/usr/local/lib/python3.9/traceback.py", line 103, in print_exception
    for line in TracebackException(
  File "/usr/local/lib/python3.9/traceback.py", line 517, in __init__
    self.stack = StackSummary.extract(
  File "/usr/local/lib/python3.9/traceback.py", line 366, in extract
    f.line
  File "/usr/local/lib/python3.9/traceback.py", line 288, in line
    self._line = linecache.getline(self.filename, self.lineno).strip()
  File "/usr/local/lib/python3.9/linecache.py", line 30, in getline
    lines = getlines(filename, module_globals)
  File "/usr/local/lib/python3.9/linecache.py", line 46, in getlines
    return updatecache(filename, module_globals)
  File "/usr/local/lib/python3.9/linecache.py", line 136, in updatecache
    with tokenize.open(fullname) as fp:
  File "/usr/local/lib/python3.9/tokenize.py", line 392, in open
    buffer = _builtin_open(filename, 'rb')
RecursionError: maximum recursion depth exceeded while calling a Python object
2023-03-04 03:17:51,007 - root - ERROR - disconnect handler error
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 633, in _get_socket
    s = self.sockets[sid]
KeyError: '4wx0Ns-ZY25pACs8AUN1'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 227, in send
    socket = self._get_socket(sid)
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 635, in _get_socket
    raise KeyError('Session not found')
KeyError: 'Session not found'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 622, in _trigger_event
    return self.handlers[event](*args)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 807, in _handle_eio_disconnect
    self._handle_disconnect(eio_sid, n)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 709, in _handle_disconnect
    self._trigger_event('disconnect', namespace, sid)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 756, in _trigger_event
    return self.handlers[namespace][event](*args)
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 282, in _handler
    return self._handle_event(handler, message, namespace, sid,
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 828, in _handle_event
    ret = handler(*args)
  File "/usr/src/app/src/socketManager.py", line 104, in handle_disconnect
    emit('message', str(hcd), to=room)
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 901, in emit
    return socketio.emit(event, *args, namespace=namespace, to=to,
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 462, in emit
    self.server.emit(event, *args, namespace=namespace, to=to,
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 319, in emit
    self.manager.emit(event, data, namespace, room=room,
  File "/usr/local/lib/python3.9/site-packages/socketio/base_manager.py", line 172, in emit
    self.server._emit_internal(eio_sid, event, data, namespace, id)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 644, in _emit_internal
    self._send_packet(eio_sid, self.packet_class(
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 654, in _send_packet
    self.eio.send(eio_sid, encoded_packet)
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 230, in send
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1458, in warning
    self._log(WARNING, msg, args, **kwargs)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1587, in _log
    record = self.makeRecord(self.name, level, fn, lno, msg, args,
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1556, in makeRecord
    rv = _logRecordFactory(name, level, fn, lno, msg, args, exc_info, func,
  File "/usr/local/lib/python3.9/logging/__init__.py", line 308, in __init__
    if (args and len(args) == 1 and isinstance(args[0], collections.abc.Mapping)
  File "/usr/local/lib/python3.9/abc.py", line 119, in __instancecheck__
    return _abc_instancecheck(cls, instance)
RecursionError: maximum recursion depth exceeded in comparison

During handling of the above exception, another exception occurred:

RecursionError: maximum recursion depth exceeded while calling a Python object

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 622, in _trigger_event
    return self.handlers[event](*args)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 807, in _handle_eio_disconnect
    self._handle_disconnect(eio_sid, n)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 709, in _handle_disconnect
    self._trigger_event('disconnect', namespace, sid)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 756, in _trigger_event
    return self.handlers[namespace][event](*args)
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 282, in _handler
    return self._handle_event(handler, message, namespace, sid,
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 828, in _handle_event
    ret = handler(*args)
  File "/usr/src/app/src/socketManager.py", line 104, in handle_disconnect
    emit('message', str(hcd), to=room)
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 901, in emit
    return socketio.emit(event, *args, namespace=namespace, to=to,
  File "/usr/local/lib/python3.9/site-packages/flask_socketio/__init__.py", line 462, in emit
    self.server.emit(event, *args, namespace=namespace, to=to,
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 319, in emit
    self.manager.emit(event, data, namespace, room=room,
  File "/usr/local/lib/python3.9/site-packages/socketio/base_manager.py", line 172, in emit
    self.server._emit_internal(eio_sid, event, data, namespace, id)
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 644, in _emit_internal
    self._send_packet(eio_sid, self.packet_class(
  File "/usr/local/lib/python3.9/site-packages/socketio/server.py", line 654, in _send_packet
    self.eio.send(eio_sid, encoded_packet)
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 232, in send
    socket.send(packet.Packet(packet.MESSAGE, data=data))
  File "/usr/local/lib/python3.9/site-packages/engineio/socket.py", line 85, in send
    if not self.check_ping_timeout():
  File "/usr/local/lib/python3.9/site-packages/engineio/socket.py", line 79, in check_ping_timeout
    self.close(wait=False, abort=False)
  File "/usr/local/lib/python3.9/site-packages/engineio/socket.py", line 132, in close
    self.server._trigger_event('disconnect', self.sid, run_async=False)
  File "/usr/local/lib/python3.9/site-packages/engineio/server.py", line 624, in _trigger_event
    self.logger.exception(event + ' handler error')
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1481, in exception
    self.error(msg, *args, exc_info=exc_info, **kwargs)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1475, in error
    self._log(ERROR, msg, args, **kwargs)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1589, in _log
    self.handle(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1599, in handle
    self.callHandlers(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1661, in callHandlers
    hdlr.handle(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 952, in handle
    self.emit(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1187, in emit
    StreamHandler.emit(self, record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 1083, in emit
    msg = self.format(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 927, in format
    return fmt.format(record)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 671, in format
    record.exc_text = self.formatException(record.exc_info)
  File "/usr/local/lib/python3.9/logging/__init__.py", line 621, in formatException
    traceback.print_exception(ei[0], ei[1], tb, None, sio)
  File "/usr/local/lib/python3.9/traceback.py", line 103, in print_exception
    for line in TracebackException(
  File "/usr/local/lib/python3.9/traceback.py", line 517, in __init__
    self.stack = StackSummary.extract(
  File "/usr/local/lib/python3.9/traceback.py", line 366, in extract
    f.line
  File "/usr/local/lib/python3.9/traceback.py", line 288, in line
    self._line = linecache.getline(self.filename, self.lineno).strip()
  File "/usr/local/lib/python3.9/linecache.py", line 30, in getline
    lines = getlines(filename, module_globals)
  File "/usr/local/lib/python3.9/linecache.py", line 46, in getlines
    return updatecache(filename, module_globals)
  File "/usr/local/lib/python3.9/linecache.py", line 136, in updatecache
    with tokenize.open(fullname) as fp:
  File "/usr/local/lib/python3.9/tokenize.py", line 392, in open
    buffer = _builtin_open(filename, 'rb')
RecursionError: maximum recursion depth exceeded while calling a Python object

I get these logs in loop, I saw that many similar errors appeared using eventlet, is there a solution to this problem?
Thanks
@itamarst itamarst added the bug label Dec 19, 2023
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@itamarst @MathiasDrapier