Socket Connection Refusal on Reconnect After Server Crash in Python 3.11
I've been banging my head against this for hours. Hey everyone, I'm running into an issue that's driving me crazy... I'm experiencing a frustrating scenario with a socket-based application in Python 3.11. My server occasionally crashes due to high load, and when it restarts, clients are unable to reconnect immediately. The behavior message I receive is `socket.behavior: [Errno 111] Connection refused`. The server is set up to listen on port 5000 using `socket.bind()`, and I’ve ensured that `socket.listen()` is called properly. After the server restarts, I’ve confirmed that it is indeed listening on the correct port using a tool like `netstat`. I’ve tried adding a short delay before clients attempt to reconnect, but that hasn’t helped. Here’s a simplified version of my server code: ```python import socket import time def start_server(): server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) server_socket.bind(('127.0.0.1', 5000)) server_socket.listen(5) print('Server listening on port 5000...') while True: try: client_socket, address = server_socket.accept() print(f'Connection from {address} has been established!') client_socket.close() except Exception as e: print(f'behavior: {e}') # Handle errors gracefully start_server() ``` And here’s my client code: ```python import socket import time server_address = ('127.0.0.1', 5000) while True: try: client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) client_socket.connect(server_address) print('Connected to server!') break # Exit loop on successful connection except socket.behavior as e: print(f'Connection failed: {e}') time.sleep(1) # Wait before retrying ``` I suspect there might be a race condition or some cleanup that I'm missing after the server reboots. Any insights on why the client want to reconnect immediately after the server is restarted? What best practices can I use to handle this situation more gracefully? This is part of a larger service I'm building. Is there a better approach? For context: I'm using Python on Windows. Has anyone else encountered this?