在捕获到致命错误时，调用 self.close() 彻底关闭连接
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CakeCN
@@ -8,36 +8,41 @@ logging.getLogger('eventlet.greenio').setLevel(logging.CRITICAL)
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# 进行猴子补丁操作
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eventlet.monkey_patch()
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# 配置 eventlet hub 以更优雅地处理所有错误
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# 配置 eventlet 以更优雅地处理错误，避免疯狂报错
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try:
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from eventlet import hubs
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import eventlet
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import traceback
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# 只修改存在的属性，避免引用错误
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if hasattr(hubs, 'trampoline'):
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# 保存原始的trampoline方法
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original_trampoline = hubs.trampoline
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# 1. 首先，禁用 eventlet 的调试日志，减少输出
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import logging
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logging.getLogger('eventlet').setLevel(logging.CRITICAL)
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logging.getLogger('socketio').setLevel(logging.CRITICAL)
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logging.getLogger('werkzeug').setLevel(logging.CRITICAL)
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def custom_trampoline(fd, read=False, write=False, timeout=None, timeout_exc=None):
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try:
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return original_trampoline(fd, read, write, timeout, timeout_exc)
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except Exception as e:
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# 捕获 trampoline 方法中所有异常
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print(f"[Eventlet Trampoline Error] {type(e).__name__}: {e}")
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print(f"[Params] fd: {fd}, read: {read}, write: {write}, timeout: {timeout}")
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print("[Traceback]")
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traceback.print_exc()
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# 返回 None 继续运行，不往外传播错误
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return None
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# 2. 配置 eventlet 只记录严重错误
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eventlet.debug.hub_prevent_multiple_readers(False)
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# 替换原始方法
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hubs.trampoline = custom_trampoline
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# 3. 避免重复打印相同错误的机制
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seen_errors = set()
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max_error_logs = 5 # 每个错误最多打印5次
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error_counts = {}
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# 同样处理 greenio 模块的所有相关方法，捕获所有异常
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def is_duplicate_error(e):
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"""检查是否为重复错误"""
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error_key = f"{type(e).__name__}: {e}"
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if error_key in seen_errors:
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error_counts[error_key] = error_counts.get(error_key, 0) + 1
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if error_counts[error_key] > max_error_logs:
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return True
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else:
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seen_errors.add(error_key)
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error_counts[error_key] = 1
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return False
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# 4. 只修改关键的 greenio 方法，确保在致命错误时彻底关闭连接
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from eventlet import greenio
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# 保存并替换原始的 greenio 方法（只修改存在的方法）
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# 保存并替换原始的 greenio 方法
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if hasattr(greenio.base.GreenSocket, '_recv_loop'):
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original_recv_loop = greenio.base.GreenSocket._recv_loop
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@@ -45,11 +50,15 @@ try:
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try:
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return original_recv_loop(self, recv_func, recv_args, *args, **kwargs)
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except Exception as e:
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# 捕获所有 IO 操作异常
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if not is_duplicate_error(e):
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print(f"[Eventlet IO Error] _recv_loop: {type(e).__name__}: {e}")
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print("[Traceback]")
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traceback.print_exc()
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# 返回空字节串继续运行
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# 彻底关闭连接，不再继续处理
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try:
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self.close()
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except Exception:
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pass
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return b''
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greenio.base.GreenSocket._recv_loop = custom_recv_loop
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@@ -61,11 +70,15 @@ try:
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try:
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return original_recv_into(self, buffer, nbytes, flags)
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except Exception as e:
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# 捕获所有 IO 操作异常
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if not is_duplicate_error(e):
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print(f"[Eventlet IO Error] recv_into: {type(e).__name__}: {e}")
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print("[Traceback]")
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traceback.print_exc()
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# 返回 0 继续运行
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# 彻底关闭连接，不再继续处理
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try:
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self.close()
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except Exception:
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pass
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return 0
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greenio.base.GreenSocket.recv_into = custom_recv_into
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@@ -77,11 +90,15 @@ try:
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try:
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return original_send_loop(self, send_func, data, *args, **kwargs)
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except Exception as e:
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# 捕获所有 IO 操作异常
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if not is_duplicate_error(e):
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print(f"[Eventlet IO Error] _send_loop: {type(e).__name__}: {e}")
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print("[Traceback]")
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traceback.print_exc()
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# 返回 0 继续运行
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# 彻底关闭连接，不再继续处理
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try:
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self.close()
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except Exception:
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pass
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return 0
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greenio.base.GreenSocket._send_loop = custom_send_loop
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@@ -93,16 +110,20 @@ try:
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try:
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return original_send(self, data, flags)
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except Exception as e:
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# 捕获所有 IO 操作异常
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if not is_duplicate_error(e):
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print(f"[Eventlet IO Error] send: {type(e).__name__}: {e}")
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print("[Traceback]")
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traceback.print_exc()
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# 返回 0 继续运行
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# 彻底关闭连接，不再继续处理
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try:
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self.close()
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except Exception:
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pass
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return 0
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greenio.base.GreenSocket.send = custom_send
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# 处理 WSGI 中的所有错误
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# 5. 处理 WSGI 中的错误，确保彻底清理
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try:
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import eventlet.wsgi
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@@ -113,12 +134,14 @@ try:
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try:
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return original_wsgi_handle_one_request(self)
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except Exception as e:
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# 捕获 WSGI 请求处理中的所有异常
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if not is_duplicate_error(e):
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print(f"[Eventlet WSGI Request Error] {type(e).__name__}: {e}")
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print("[Traceback]")
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traceback.print_exc()
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# 清理连接状态并返回，不往外传播错误
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# 彻底清理连接，不再继续
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try:
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self.rfile.close()
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self.wfile.close()
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self.finish()
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except Exception:
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pass
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@@ -133,12 +156,14 @@ try:
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try:
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return original_wsgi_handle_one_response(self)
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except Exception as e:
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# 捕获 WSGI 响应处理中的所有异常
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if not is_duplicate_error(e):
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print(f"[Eventlet WSGI Response Error] {type(e).__name__}: {e}")
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print("[Traceback]")
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traceback.print_exc()
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# 清理连接状态并返回，不往外传播错误
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# 彻底清理连接，不再继续
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try:
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self.rfile.close()
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self.wfile.close()
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self.finish()
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except Exception:
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pass
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@@ -149,7 +174,7 @@ try:
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# 如果修改失败，忽略错误
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print(f"[WSGI Patch Error] {e}")
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print("[Eventlet Error Handling] Eventlet errors will be caught and printed, not raised")
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print("[Eventlet Error Handling] Configured to handle errors gracefully, avoiding duplicate logs")
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except Exception as e:
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# 如果修改失败，打印错误但继续运行
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print(f"[Eventlet Patch Initialization Error] {e}")
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