监控脚本 目前遇到一个问题 云服务器经常死机 所以写了一个脚本进行监控#!/usr/bin/env python3 import os import psutil import time import logging import subprocess log_file = "/var/log/resource_monitor.log" logging.basicConfig(filename=log_file, level=logging.INFO, format='%(asctime)s - %(message)s') cpu_threshold = 201.0 overall_cpu_threshold = 60.0 memory_threshold = 0.2 load_threshold = 20.0 ping_host = "qq.com" def log_top_processes(): current_pid = os.getpid() # 获取当前脚本的PID top_procs = sorted(psutil.process_iter(['pid', 'name', 'cpu_percent', 'memory_info']), key=lambda p: p.info['cpu_percent'], reverse=True)[:3] for proc in top_procs: if proc.info['pid'] == current_pid: continue # 跳过记录当前脚本进程 proc_info = proc.info memory_usage = proc_info['memory_info'].rss / (1024 * 1024 * 1024) logging.info(f"进程 {proc_info['name']} (PID: {proc_info['pid']}) 使用的CPU: {proc_info['cpu_percent']}%，内存使用: {memory_usage:.2f}GB") def log_system_status(): cpu_usage = psutil.cpu_percent(interval=1) memory_available = psutil.virtual_memory().available / (1024 * 1024 * 1024) load_avg = os.getloadavg()[0] logging.info(f"当前 CPU 使用率: {cpu_usage}%, 可用内存: {memory_available:.2f}GB, 负载平均: {load_avg}") for proc in psutil.process_iter(['pid', 'name', 'cpu_percent']): if proc.info['cpu_percent'] > cpu_threshold: logging.warning(f"进程 {proc.info['name']} (PID: {proc.info['pid']}) 使用的CPU达到了 {proc.info['cpu_percent']}%，超过了阈值 {cpu_threshold}%") log_top_processes() break if cpu_usage > overall_cpu_threshold or memory_available < memory_threshold or load_avg > load_threshold: logging.warning(f"系统资源使用率超出阈值！记录前3个占用资源最高的进程：") log_top_processes() sys_log = os.popen('tail -n 5 /var/log/messages').read() logging.info(f"最近的系统日志:\n{sys_log}") def check_system_unresponsive(): try: result = subprocess.run(['ping', '-c', '1', ping_host], stdout=subprocess.PIPE, stderr=subprocess.PIPE) if result.returncode != 0: logging.error(f"无法 ping {ping_host}，可能系统卡死！") log_top_processes() sys_log = os.popen('tail -n 10 /var/log/messages').read() logging.info(f"最近的系统日志:\n{sys_log}") except Exception as e: logging.error(f"检查系统是否卡死时出错: {e}") def monitor_resources(): while True: log_system_status() check_system_unresponsive() time.sleep(120) # 调整监控频率 if __name__ == "__main__": monitor_resources() ##日志输出/var/log/resource_monitor.log ## 杀死进程 pkill -f resource_monitor.py信息输出保存为resource_monitor.pychmod +x resource_monitor.py && python resource_monitor.py