def heartbeat_client(host, port, interval=5): while True: try: # Create a socket and send a pulse with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s: s.connect((host, port)) s.sendall(b'PING') # Optional: Wait for ACK # data = s.recv(1024) print(f"Heartbeat sent to {host}") except ConnectionRefusedError: print("Monitor is down! Retrying...") time.sleep(interval) Historia 2 Secundaria Editorial Santillana Pdf
def heartbeat_server(port): with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s: s.bind(('0.0.0.0', port)) s.listen() print("Monitor listening...") while True: conn, addr = s.accept() with conn: data = conn.recv(1024) if data: # Update the last seen time nodes[addr[0]] = time.time() print(f"Pulse received from {addr[0]}") conn.sendall(b'ACK') 8xmovies 9xmovies Worldfree4u Downloadhub Bolly4u | Fix
import socket import time
# Dictionary to track last seen times nodes = {} TIMEOUT = 15 # seconds
def monitor_health(): while True: current_time = time.time() for node, last_seen in list(nodes.items()): if current_time - last_seen > TIMEOUT: print(f"ALERT: Node {node} is unresponsive!") # Trigger failover logic here del nodes[node] time.sleep(1)