From d36a58341df2c9183836be101f35fa4566a2026d Mon Sep 17 00:00:00 2001
From: hailin <hailin.zhao@gdzx.xyz>
Date: Sun, 21 Dec 2025 20:38:47 -0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BC=98=E5=8C=96=E7=9F=AD=E4=BF=A1?=
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- 降低重试次数到 2 次
- 增加基础延迟到 3 秒
- 超时错误不重试（短信可能已发送成功）
- 流控错误不重试

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 .../infrastructure/external/sms/sms.service.ts | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/backend/services/identity-service/src/infrastructure/external/sms/sms.service.ts b/backend/services/identity-service/src/infrastructure/external/sms/sms.service.ts
index 5977f692..18f57f63 100644
--- a/backend/services/identity-service/src/infrastructure/external/sms/sms.service.ts
+++ b/backend/services/identity-service/src/infrastructure/external/sms/sms.service.ts
@@ -14,16 +14,22 @@ export interface SmsSendResult {
 
 // 重试配置
 const RETRY_CONFIG = {
-  maxRetries: 3, // 最大重试次数
-  baseDelay: 1000, // 基础延迟 1 秒
-  maxDelay: 5000, // 最大延迟 5 秒
+  maxRetries: 2, // 最大重试次数（降低，避免触发流控）
+  baseDelay: 3000, // 基础延迟 3 秒（增加，避免触发分钟级流控）
+  maxDelay: 10000, // 最大延迟 10 秒
+  // 只对连接阶段的错误重试，读取超时不重试（可能短信已发送）
   retryableErrors: [
+    'ECONNRESET',
+    'ECONNREFUSED',
+    'ENOTFOUND', // DNS 解析失败
+    'ServiceUnavailable',
+  ],
+  // 不重试的错误（可能短信已发送成功，只是响应慢）
+  noRetryErrors: [
     'ConnectTimeout',
     'ReadTimeout',
     'ETIMEDOUT',
-    'ECONNRESET',
-    'ECONNREFUSED',
-    'ServiceUnavailable',
+    'BUSINESS_LIMIT_CONTROL', // 流控
   ],
 };