🎈 perf: 优化 Redis 策略

package.json

@@ -43,6 +43,7 @@
     "dayjs": "^1.11.13",
     "dotenv": "^16.4.6",
     "feed": "^4.2.2",
+    "flatted": "^3.3.2",
     "hono": "^4.6.12",
     "iconv-lite": "^0.6.3",
     "ioredis": "^5.4.1",
@@ -50,7 +51,6 @@
     "node-cache": "^5.1.2",
     "rss-parser": "^3.13.0",
     "user-agents": "^1.1.379",
-    "uuid": "^11.0.3",
     "winston": "^3.17.0"
   },
   "devDependencies": {

pnpm-lock.yaml

@@ -29,6 +29,9 @@ importers:
       feed:
         specifier: ^4.2.2
         version: 4.2.2
+      flatted:
+        specifier: ^3.3.2
+        version: 3.3.2
       hono:
         specifier: ^4.6.12
         version: 4.6.12
@@ -50,9 +53,6 @@ importers:
       user-agents:
         specifier: ^1.1.379
         version: 1.1.379
-      uuid:
-        specifier: ^11.0.3
-        version: 11.0.3
       winston:
         specifier: ^3.17.0
         version: 3.17.0
@@ -1055,10 +1055,6 @@ packages:
   util-deprecate@1.0.2:
     resolution: {integrity: sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==}
 
-  uuid@11.0.3:
-    resolution: {integrity: sha512-d0z310fCWv5dJwnX1Y/MncBAqGMKEzlBb1AOf7z9K8ALnd0utBX/msg/fA0+sbyN1ihbMsLhrBlnl1ak7Wa0rg==}
-    hasBin: true
-
   whatwg-encoding@3.1.1:
     resolution: {integrity: sha512-6qN4hJdMwfYBtE3YBTTHhoeuUrDBPZmbQaxWAqSALV/MeEnR5z1xd8UKud2RAkFoPkmB+hli1TZSnyi84xz1vQ==}
     engines: {node: '>=18'}
@@ -2008,8 +2004,6 @@ snapshots:
 
   util-deprecate@1.0.2: {}
 
-  uuid@11.0.3: {}
-
   whatwg-encoding@3.1.1:
     dependencies:
       iconv-lite: 0.6.3

src/utils/cache.ts

@@ -1,4 +1,5 @@
 import { config } from "../config.js";
+import { stringify, parse } from "flatted";
 import logger from "./logger.js";
 import NodeCache from "node-cache";
 import Redis from "ioredis";
@@ -25,6 +26,9 @@ const redis = new Redis({
   host: config.REDIS_HOST,
   port: config.REDIS_PORT,
   password: config.REDIS_PASSWORD,
+  maxRetriesPerRequest: 5,
+  // 重试策略：最小延迟 50ms，最大延迟 2s
+  retryStrategy: (times) => Math.min(times * 50, 2000),
   // 仅在第一次建立连接
   lazyConnect: true,
 });
@@ -33,7 +37,24 @@ const redis = new Redis({
 let isRedisAvailable: boolean = false;
 let isRedisTried: boolean = false;
 
-// Redis 连接错误
+// Redis 连接状态
+const ensureRedisConnection = async () => {
+  if (isRedisTried) return;
+  try {
+    if (redis.status !== "ready" && redis.status !== "connecting") await redis.connect();
+    isRedisAvailable = true;
+    isRedisTried = true;
+    logger.info("📦 [Redis] connected successfully.");
+  } catch (error) {
+    isRedisAvailable = false;
+    isRedisTried = true;
+    logger.error(
+      `📦 [Redis] connection failed: ${error instanceof Error ? error.message : "Unknown error"}`,
+    );
+  }
+};
+
+// Redis 事件监听
 redis.on("error", (err) => {
   if (!isRedisTried) {
     isRedisAvailable = false;
@@ -44,23 +65,14 @@ redis.on("error", (err) => {
   }
 });
 
-// Redis 连接状态
+// NodeCache 事件监听
-const ensureRedisConnection = async () => {
+cache.on("expired", (key) => {
-  if (!isRedisTried) {
+  logger.info(`⏳ [NodeCache] Key "${key}" has expired.`);
-    try {
+});
-      await redis.connect();
+
-      isRedisAvailable = true;
+cache.on("del", (key) => {
-      isRedisTried = true;
+  logger.info(`🗑️ [NodeCache] Key "${key}" has been deleted.`);
-      logger.info("📦 [Redis] connected successfully.");
+});
-    } catch (error) {
-      isRedisAvailable = false;
-      isRedisTried = true;
-      logger.error(
-        `📦 [Redis] connection failed: ${error instanceof Error ? error.message : "Unknown error"}`,
-      );
-    }
-  }
-};
 
 /**
  * 从缓存中获取数据
@@ -72,10 +84,7 @@ export const getCache = async (key: string): Promise<CacheData | undefined> => {
   if (isRedisAvailable) {
     try {
       const redisResult = await redis.get(key);
-      if (redisResult) {
+      if (redisResult) return parse(redisResult);
-        const data = JSON.parse(redisResult);
-        return data;
-      }
     } catch (error) {
       logger.error(
         `📦 [Redis] get error: ${error instanceof Error ? error.message : "Unknown error"}`,
@@ -100,7 +109,7 @@ export const setCache = async (
   // 尝试写入 Redis
   if (isRedisAvailable && !Buffer.isBuffer(value?.data)) {
     try {
-      await redis.set(key, JSON.stringify(value), "EX", ttl);
+      await redis.set(key, stringify(value), "EX", ttl);
       if (logger) logger.info(`💾 [REDIS] ${key} has been cached`);
     } catch (error) {
       logger.error(
@@ -120,16 +129,14 @@ export const setCache = async (
  */
 export const delCache = async (key: string): Promise<boolean> => {
   let redisSuccess = true;
-  if (isRedisAvailable) {
+  try {
-    try {
+    await redis.del(key);
-      await redis.del(key);
+    logger.info(`🗑️ [REDIS] ${key} has been deleted from Redis`);
-      if (logger) logger.info(`🗑️ [REDIS] ${key} has been deleted from Redis`);
+  } catch (error) {
-    } catch (error) {
+    redisSuccess = false;
-      logger.error(
+    logger.error(
-        `📦 [Redis] del error: ${error instanceof Error ? error.message : "Unknown error"}`,
+      `📦 [Redis] del error: ${error instanceof Error ? error.message : "Unknown error"}`,
-      );
+    );
-      redisSuccess = false;
-    }
   }
   // 尝试删除 NodeCache
   const nodeCacheSuccess = cache.del(key) > 0;