From 21de152fd78a1cdecd2fa3faa24f4e9ad8fb2d81 Mon Sep 17 00:00:00 2001
From: caigua <49645396+19y@users.noreply.github.com>
Date: Thu, 13 Nov 2025 12:15:16 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E9=81=BF=E5=85=8D=E6=97=A5=E5=BF=97?=
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初始慢操作触发日志写入，增加系统负载；日志写入因负载过高变缓，被判定为新的慢操作，进而触发更多日志；持续升高的负载让所有操作进一步变慢，生成更多日志。最终形成“越慢越写、越写越慢”的自我强化正反馈循环，即便初始高并发业务流量结束，循环仍会持续耗尽系统资源，直至服务崩溃。

修复方案：
- 对日志模型（Log）跳过 addCommonMiddleware 中间件注册
- 避免日志写入操作被自身监控逻辑拦截，从源头切断循环触发条件
- 不影响业务模型的慢操作监控功能，仅豁免日志自身的性能统计
---
 packages/service/common/mongo/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/service/common/mongo/index.ts b/packages/service/common/mongo/index.ts
index 51b52f094..15475569a 100644
--- a/packages/service/common/mongo/index.ts
+++ b/packages/service/common/mongo/index.ts
@@ -112,7 +112,7 @@ export const getMongoModel = <T>(name: string, schema: mongoose.Schema) => {
 export const getMongoLogModel = <T>(name: string, schema: mongoose.Schema) => {
   if (connectionLogMongo.models[name]) return connectionLogMongo.models[name] as Model<T>;
   console.log('Load model======', name);
-  addCommonMiddleware(schema);
+  // addCommonMiddleware(schema); 
 
   const model = connectionLogMongo.model<T>(name, schema);