ChatGPT无法加载问题排查指南：从网络诊断到API优化

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当开发者调用 ChatGPT API 时，常会遇到如下错误提示：

Error: ChatGPT is unable to load
Status: 503 Service Unavailable

503 Service Unavailable
服务端过载或维护
建议：检查 OpenAI 状态页面（status.openai.com）
429 Too Many Requests
触发 API 速率限制
建议：实现请求队列和限流算法
500 Internal Server Error
服务端意外错误
建议：捕获异常后重试

# 基础连通性测试
curl -v https://api.openai.com/v1/chat/completions

# 路由追踪（Linux/Mac）traceroute api.openai.com

请求合并：将短间隔请求合并为批量请求
结果缓存：对相同 prompt 响应做本地缓存
延迟加载：非关键请求延后发送

import time
import requests
from requests.exceptions import RequestException

def exponential_backoff_retry(url, payload, max_retries=5):
    retry_delay = 1  # 初始延迟 1 秒
    for attempt in range(max_retries):
        try:
            response = requests.post(url, json=payload)
            response.raise_for_status()
            return response.json()
        except RequestException as e:
            if attempt == max_retries - 1:
                raise
            print(f"Attempt {attempt + 1} failed, retrying in {retry_delay}s...")
            time.sleep(retry_delay)
            retry_delay *= 2  # 指数递增延迟

const jwt = require('jsonwebtoken');

class TokenManager {constructor(secret, refreshInterval = 3600000) {
    this.secret = secret;
    this.token = this.generateToken();
    setInterval(() => {this.token = this.generateToken();
    }, refreshInterval);
  }

  generateToken() {
    return jwt.sign({exp: Math.floor(Date.now() / 1000) + 3600,
      data: {service: 'chatgpt'}
    }, this.secret);
  }
}