Invalid empty packet received

[ticatwolves]

I have flask-socket io server running with gevent and is able to connect from multiple machines but sometimes when i make client connection with socket-io client it given error [ERROR] ValueError: Invalid empty packet received File "/var/task/handlers/ScanOnEvent.py", line 17, in handle_socket_client sio.connect(f'{constants.SOCKET_BASE_URL}', headers={ File "/var/task/socketio/client.py", line 331, in connect self.eio.connect(real_url, headers=real_headers, File "/var/task/engineio/client.py", line 185, in connect return getattr(self, 'connect' + self.transports[0])( File "/var/task/engineio/client.py", line 324, in _connect_polling if self._connect_websocket(url, headers, engineio_path): File "/var/task/engineio/client.py", line 445, in _connect_websocket pkt = packet.Packet(encoded_packet=p) File "/var/task/engineio/packet.py", line 27, in init self.decode(encoded_packet) File "/var/task/engineio/packet.py", line 52, in decode raise ValueError('Invalid empty packet received')

and [ERROR] ConnectionError: One or more namespaces failed to connect File "/var/task/handlers/ScanOnEvent.py", line 17, in handle_socket_client sio.connect(f'{constants.SOCKET_BASE_URL}', headers={ File "/var/task/socketio/client.py", line 347, in connect raise exceptions.ConnectionError(

this is the client side code

count = 0
for i in range(10):
    sio = socketio.Client()
    try:
        sio.connect('URL_HERE', headers={})
        count += 1
    except Exception as e:
        print(e)

This error comes randomly ie out to 10 sometimes 3, sometimes 4