{"id":34352,"date":"2023-05-27T10:48:21","date_gmt":"2023-02-28T04:24:42","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8node-js%e4%b8%ad%e7%9a%84ioredis%e5%ba%93%e5%a4%84%e7%90%86redis-cluster\/"},"modified":"2024-04-30T06:12:18","modified_gmt":"2024-04-29T22:12:18","slug":"%e4%bd%bf%e7%94%a8node-js%e4%b8%ad%e7%9a%84ioredis%e5%ba%93%e5%a4%84%e7%90%86redis-cluster","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8node-js%e4%b8%ad%e7%9a%84ioredis%e5%ba%93%e5%a4%84%e7%90%86redis-cluster\/","title":{"rendered":"\u4f7f\u7528Node.js\u4e2d\u7684ioredis\u5e93\u5904\u7406Redis Cluster"},"content":{"rendered":"

\u6700\u8fd1\u3067Node.js\u3067 Redis Cluster\u3092\u89e6\u308b\u6a5f\u4f1a\u304c\u3042\u3063\u305f\u306e\u3067\u3059\u304c
\n\u610f\u5916\u3068Redis Cluster \u00d7 Node.js\u306e\u65e5\u672c\u8a9e\u8a18\u4e8b\u304c\u7121\u304b\u3063\u305f\u305f\u3081\u3001\u5099\u5fd8\u9332\u3092\u517c\u306d\u3066\u8a18\u4e8b\u306b\u8d77\u3053\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n

\u4eca\u56de\u5229\u7528\u3059\u308b\u30d1\u30c3\u30b1\u30fc\u30b8\u306f\u3053\u3061\u3089\u3002
\nGitHub – luin\/ioredis: ?A robust, performance-focused and full-featured Redis client for Node.js.<\/p>\n

\u5982\u679c\u4f7f\u7528TypeScript\u7684\u8bdd\uff0c\u8ba9\u6211\u4eec\u4e00\u8d77\u5bfc\u5165\u7c7b\u578b\u5427\u3002<\/p>\n

npm i ioredis\r\nnpm i -D<\/span> @types\/ioredis\r\n<\/code><\/pre>\n
\u6784\u9020\u51fd\u6570<\/h2>\n
\u5982\u679c\u662f\u4ee5cluster\u5f62\u5f0f\u6765\u4f7f\u7528\u7684\u8bdd\uff0c\u9700\u8981\u7528\u6570\u7ec4\u5f62\u5f0f\u6307\u5b9a\u8981\u4f7f\u7528\u7684node\u3002\u5982\u679c\u4e0d\u9700\u8981\u6307\u5b9a\u4efb\u4f55\u5176\u4ed6\u9009\u9879\uff0c\u90a3\u4e48\u57fa\u672c\u4e0a\u53ea\u9700\u8fdb\u884c\u8fd9\u4e2a\u8bbe\u7f6e\u5373\u53ef\u3002<\/p>\n
const<\/span> driver<\/span>:<\/span> IORedis<\/span>.<\/span>Cluster<\/span> =<\/span> new<\/span> IORedis<\/span>.<\/span>Cluster<\/span>([<\/span>\r\n   {<\/span> port<\/span>:<\/span> 6380<\/span>,<\/span> host<\/span>:<\/span> '<\/span>127.0.0.1<\/span>'<\/span>},<\/span>\r\n   {<\/span> port<\/span>:<\/span> 6381<\/span>,<\/span> host<\/span>:<\/span> '<\/span>127.0.0.1<\/span>'<\/span>},<\/span>\r\n]);<\/span>\r\n<\/code><\/pre>\n
Redis\u9009\u9879<\/h3>\n
\u53ef\u80fd\u6027\u6700\u5927\u7684\u89e6\u53ca\u70b9\u53ef\u80fd\u4f1a\u662f\u4ee5\u4e0b\u547d\u540d\u65b9\u6cd5\u3002\u5b83\u662f\u7528\u6765\u8bbe\u7f6e\u4e0e Redis \u76f8\u5173\u7684\u9009\u9879\u3002\u4f8b\u5982\uff0c\u5982\u679c\u9700\u8981\u5bc6\u7801\uff0c\u53ef\u4ee5\u901a\u8fc7 redisOption \u8fdb\u884c\u6307\u5b9a\u3002<\/p>\n
const<\/span> driver<\/span>:<\/span> IORedis<\/span>.<\/span>Cluster<\/span> =<\/span> new<\/span> IORedis<\/span>.<\/span>Cluster<\/span>([],<\/span>\r\n      redisOptions<\/span>:<\/span> {<\/span>\r\n        password<\/span>:<\/span> config<\/span>.<\/span>password<\/span>\r\n      }<\/span>\r\n);<\/span>\r\n<\/code><\/pre>\n
\u5728\u53ef\u8a2d\u5b9a\u7684\u9078\u9805\u4e2d\uff0c\u53ef\u4ee5\u901a\u904eAPI – ioredis \/ new Redis([port], [host], [options]\u4f86\u78ba\u8a8d\uff0c\u9019\u88e1\u5c07\u5217\u51fa\u6211\u89ba\u5f97\u53ef\u80fd\u6703\u7528\u5230\u7684\u9805\u76ee\u3002<\/p>\n
\n
\u30aa\u30d7\u30b7\u30e7\u30f3\u540d\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u8a73\u7d30db0\u4f7f\u7528\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a4\u30f3\u30c7\u30c3\u30af\u30b9passwordnull\u30d1\u30b9\u30ef\u30fc\u30c9dropBufferSupportFALSE\u30d0\u30c3\u30d5\u30a1\u30b5\u30dd\u30fc\u30c8\u306e\u524a\u9664\u3092\u6709\u52b9\u5316,\u3002\u5de8\u5927\u306a\u914d\u5217\u306e\u5fdc\u7b54\u3092\u51e6\u7406\u3059\u308b\u3068\u304d\u306b\u6709\u52b9\u306b\u3059\u308b\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3059\u308b\u3089\u3057\u3044(\u672a\u691c\u8a3c)enableReadyCheckTRUERedis\u306e\u30b5\u30fc\u30d0\u30fc\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u78ba\u8a8d\u3057\u3066\u304b\u3089\u30b3\u30de\u30f3\u30c9\u3092\u9001\u4fe1\u3059\u308bconnectTimeout10000\u521d\u671f\u63a5\u7d9a\u4e2d\u306b\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u304c\u767a\u751f\u3059\u308b\u307e\u3067\u306e\u30df\u30ea\u79d2tlsnullTLS\u63a5\u7d9a\u306e\u30b5\u30dd\u30fc\u30c8 (https:\/\/github.com\/luin\/ioredis#tls-options<\/a>)readOnlyFALSE\u8aad\u307f\u53d6\u308a\u5c02\u7528<\/div>\n<\/div>\n
\u5176\u4ed6\u9009\u9879<\/h3>\n
redisOption\u4ee5\u5916\u306b\u3082\u5e7e\u3064\u304b\u6307\u5b9a\u3067\u304d\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u3042\u308b\u305f\u3081\u3001\u3053\u3061\u3089\u3082\u8a18\u8f09\u3002
\n\u3053\u3061\u3089\u3082\u540c\u69d8\u306bAPI – ioredis \/ new Cluster(startupNodes, options) \u306b\u8a2d\u5b9a\u9805\u76ee\u304c\u8f09\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u6211\u6311\u9009\u4e86\u4e00\u4e9b\u53ef\u80fd\u4f1a\u7528\u5230\u7684\u7269\u54c1\u3002<\/p>\n
\n
\u30aa\u30d7\u30b7\u30e7\u30f3\u540d\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u8a73\u7d30clusterRetryStrategy
\n\u30ce\u30fc\u30c9\u306b\u5230\u9054\u3067\u304d\u306a\u3044\u5834\u5408\u306b\u547c\u3073\u51fa\u3055\u308c\u308bcallback\u3002 return\u3057\u305f\u6570\u5024\u5206\u5f85\u6a5f\u3057\u3066\u518d\u63a5\u7d9a\u3092\u8a66\u307f\u308bscaleReadsmaster\u8aad\u307f\u53d6\u308a\u5bfe\u8c61\u306enode\u3092\u6307\u5b9a\u3059\u308b\u3002\u6307\u5b9a\u53ef\u80fd\u306a\u306e\u306f master, slave, all \u306e\u3044\u305a\u308c\u304bmaxRedirections16\u30bf\u30fc\u30b2\u30c3\u30c8 node\u304b\u3089\u30a8\u30e9\u30fc(MOVED, CLUSTERDOWN\u7b49)\u304c\u8fd4\u3063\u305f\u5834\u5408\u306b\u4ed6\u306enode\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u56de\u6570retryDelayOnFailover100\u30bf\u30fc\u30b2\u30c3\u30c8 node\u304c\u5207\u65ad\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u6307\u5b9a\u79d2\u5f8c\u306b\u30b3\u30de\u30f3\u30c9\u3092\u518d\u9001\u4fe1\u3059\u308b<\/div>\n<\/div>\n
const<\/span> driver<\/span>:<\/span> IORedis<\/span>.<\/span>Cluster<\/span> =<\/span> new<\/span> IORedis<\/span>.<\/span>Cluster<\/span>([],<\/span>\r\n      redisOptions<\/span>:<\/span> {},<\/span>\r\n      retryDelayOnFailover<\/span>:<\/span> 50<\/span>\r\n);<\/span>\r\n<\/code><\/pre>\n
\u7136\u800c\uff0c\u4e0eredisOptions\u4e0d\u540c\uff0c\u5f88\u5c11\u6709\u60c5\u51b5\u9700\u8981\u6307\u5b9a\u6b64\u9009\u9879\u3002<\/p>\n
\u547d\u4ee4<\/h2>\n
\u4ee5\u57fa\u672c\u7684\u7684Command\u4e3a\u4e2d\u5fc3\u3002
\n\u5c24\u5176\u662f\u5728\u5199\u5165(write)\u65f6\u9700\u8981\u6ce8\u610f\u5199\u5165\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n
\u9605\u8bfb<\/h3>\n
await<\/span> redis<\/span>.<\/span>get<\/span>(<\/span>'<\/span>key<\/span>'<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u5199<\/h3>\n
await<\/span> redis<\/span>.<\/span>set<\/span>(<\/span>'<\/span>key<\/span>'<\/span>,<\/span> '<\/span>value<\/span>'<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u8981\u6307\u5b9a expire \uff0c\u5219\u5982\u4e0b\u6240\u793a\u6307\u5b9a\u4e3a EX \u548c\u6709\u6548\u671f\uff08\u79d2\uff09\u3002<\/p>\n
redis<\/span>.<\/span>set<\/span>(<\/span>'<\/span>key<\/span>'<\/span>,<\/span> '<\/span>value<\/span>'<\/span>,<\/span> '<\/span>EX<\/span>'<\/span>,<\/span> 10<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u8bf7\u6ce8\u610f\uff0c\u5982\u679c\u5c06Object\u7c7b\u578b\u8bbe\u7f6e\u4e3avalue\uff0c\u5219\u4f1a\u4ee5[Object object]\u7684\u5f62\u5f0f\u4fdd\u5b58\uff0c\u56e0\u6b64\u5728\u4fdd\u5b58Object\u7c7b\u578b\u65f6\uff0c\u8bf7\u786e\u4fdd\u4f7f\u7528JSON.stringify\u5c06\u5176\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u5e76\u653e\u5165\u3002<\/p>\n
\u5220\u9664<\/h3>\n
await<\/span> this<\/span>.<\/span>redis<\/span>.<\/span>del<\/span>(<\/span>'<\/span>key<\/span>'<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u94a5\u5319<\/h3>\n
\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u8fdb\u884c\u63d0\u53d6\u3002
\n\u5f53\u6ca1\u6709\u5339\u914d\u65f6\uff0c\u4f7f\u7528”get” \u4f1a\u8fd4\u56de null\uff0c\u800c\u8fd9\u91cc\u5c06\u8fd4\u56de\u4e00\u4e2a\u7a7a\u6570\u7ec4\u3002<\/p>\n
await<\/span> this<\/span>.<\/span>redis<\/span>.<\/span>keys<\/span>(<\/span>'<\/span>regExp<\/span>'<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u4e8b\u4ef6<\/h2>\n
\u6839\u636e\u4e0eRedis\u7684\u8fde\u63a5\u72b6\u6001\u76f8\u5bf9\u5e94\uff0c\u5c06\u89e6\u53d1\u4e8b\u4ef6\u3002
\n\u89e6\u53d1\u7684\u4e8b\u4ef6\u5982\u4e0b\u3002<\/p>\n
\n
\u30a4\u30d9\u30f3\u30c8\u8a73\u7d30connectRedis\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u63a5\u7d9a\u304c\u78ba\u7acb\u3057\u305f\u6642ready\u30b3\u30de\u30f3\u30c9\u3092\u53d7\u4ed8\u304c\u53ef\u80fd\u306a\u6642(enableReadyCheck \u3067 true\u3092\u78ba\u8a8d\u3067\u304d\u305f\u6642)error\u63a5\u7d9a\u4e2d\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u6642closeRedis\u30b5\u30fc\u30d0\u30fc\u63a5\u7d9a\u304c\u9589\u3058\u305f\u6642reconnecting\u518d\u63a5\u7d9a\u304c\u884c\u308f\u308c\u305f\u6642endRedis\u30b5\u30fc\u30d0\u30fc\u3068\u306e\u63a5\u7d9a\u304c\u9589\u3058\u305f\u6642<\/div>\n<\/div>\n
\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u6765\u5904\u7406\u53d1\u751f\u5f02\u5e38\u7684\u4e8b\u4ef6\u3002<\/p>\n
this<\/span>.<\/span>redis<\/span>.<\/span>on<\/span>(<\/span>'<\/span>connect<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n  console<\/span>.<\/span>log<\/span>(<\/span>'<\/span>trigger connect<\/span>'<\/span>);<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
\u5176\u4ed6\u7684\u6280\u5de7<\/h2>\n
\u8fd9\u662f\u6211\u5b9e\u9645\u5904\u7406\u8fc7\u7684\u7ec6\u8282\u5185\u5bb9\u3002<\/p>\n
\u6211\u60f3\u8981\u51cf\u8f7b\u4e3b\u8282\u70b9\u7684\u8d1f\u8f7d\u3002<\/h3>\n
\u57fa\u672c\u4e0a\uff0c\u5728ioredis\u4e2d\uff0c\u6240\u6709\u7684\u547d\u4ee4\u90fd\u4f1a\u53d1\u9001\u5230\u4e3b\u8282\u70b9\u3002
\n\u56e0\u6b64\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e3b\u8282\u70b9\u7684CPU\u6d88\u8017\u8fc7\u5927\uff0c\u8fdb\u800c\u964d\u4f4e\u6027\u80fd\u3002<\/p>\n
\u56e0\u6b64\uff0c\u901a\u8fc7\u6784\u9020\u51fd\u6570\u9009\u9879scaleRead\uff0c\u5c06\u8bfb\u53d6\u547d\u4ee4\u7684\u76ee\u6807\u66f4\u6539\u4e3a\u4ece\u8bbe\u5907\u3002<\/p>\n
const<\/span> driver<\/span>:<\/span> IORedis<\/span>.<\/span>Cluster<\/span> =<\/span> new<\/span> IORedis<\/span>.<\/span>Cluster<\/span>([],<\/span>\r\n      redisOptions<\/span>:<\/span> {},<\/span>\r\n      scaleReads<\/span>:<\/span> '<\/span>slave<\/span>'<\/span> \r\n);<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u6837\u4e00\u6765\uff0cread\u547d\u4ee4\u5c31\u4f1a\u6307\u5411\u4ece\u5e93\uff0c\u51cf\u8f7b\u4e86\u4e3b\u5e93\u7684\u8d1f\u62c5\u3002
\n\u4f46\u662f\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u7531\u4e8e\u590d\u5236\u5ef6\u8fdf\u7684\u5b58\u5728\uff0c\u4e3b\u5e93\u548c\u4ece\u5e93\u4e4b\u95f4\u53ef\u80fd\u4f1a\u53d1\u751f\u6570\u636e\u5dee\u5f02\u3002<\/p>\n
\u6211\u60f3\u538b\u7f29\u8981\u5199\u5165\u7684\u6570\u636e\u3002<\/h3>\n
\u4f7f\u7528API\u7f13\u5b58\u7b49\u5c06\u5927\u91cf\u6570\u636e\u5199\u5165Redis\u65f6\uff0c\u9884\u8ba1\u4f1a\u51fa\u73b0\u4e00\u4e9b\u95ee\u9898\u3002<\/p>\n
    \n
  • \n
      \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5e2f\u57df\u3092\u5727\u8feb\u3057\u3066\u5e2f\u57df\u8a70\u307e\u308a\u3092\u8d77\u3053\u3059<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          \u30ec\u30a4\u30c6\u30f3\u30b7\u304c\u60aa\u5316\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            Redis\u306e\u5bb9\u91cf\u3092\u5727\u8feb\u3059\u308b<\/ul>\n
            \u6709\u4e00\u4e2a\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u7684\u65b9\u6cd5\u662f\u901a\u8fc7\u538b\u7f29\u6570\u636e\uff0c\u4f46\u662f ioredis \u4e0d\u4f1a\u538b\u7f29\u6570\u636e\uff0c\u56e0\u6b64\u9700\u8981\u81ea\u5df1\u51c6\u5907\u538b\u7f29\u673a\u5236\u3002<\/p>\n
            \u867d\u7136\u6709\u51e0\u4e2a\u53ef\u4ee5\u8fdb\u884c\u538b\u7f29\u548c\u89e3\u538b\u7f29\u7684\u5e93\u53ef\u4f9b\u9009\u62e9\uff0c\u4f46\u8fd9\u6b21\u6211\u4eec\u5c06\u4f7f\u7528\u901f\u5ea6\u5feb\u7684 lz-string \u5e93\u3002\u5728 GitHub \u4e0a\u53ef\u627e\u5230\uff1apieroxy\/lz-string\uff1a\u7528\u4e8e JavaScript \u7684\u57fa\u4e8e LZ \u7684\u538b\u7f29\u7b97\u6cd5\u3002<\/p>\n
            npm i lz-string\r\nnpm i -D<\/span> @types\/lz-string\r\n<\/code><\/pre>\n
            import<\/span> *<\/span> as<\/span> IORedis<\/span> from<\/span> '<\/span>ioredis<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span>compress<\/span>,<\/span> decompress<\/span>}<\/span> from<\/span> '<\/span>lz-string<\/span>'<\/span>\r\n\r\n\/\/<\/span>\r\n\/\/ \u7701\u7565<\/span>\r\n\/\/<\/span>\r\n\r\n\/**\r\n * \u8aad\u307f\u8fbc\u307f\r\n * @param {string} key\r\n *\/<\/span>\r\nasync<\/span> function<\/span> get<\/span>(<\/span>key<\/span>:<\/span> string<\/span>):<\/span> Promise<\/span><<\/span>string<\/span> |<\/span> null<\/span>><\/span> {<\/span>\r\n  const<\/span> buf<\/span>:<\/span> string<\/span> |<\/span> null<\/span> =<\/span> await<\/span> redis<\/span>.<\/span>get<\/span>(<\/span>key<\/span>);<\/span>\r\n  if<\/span> (<\/span>buf<\/span> ==<\/span> null<\/span>)<\/span> return<\/span> null<\/span>;<\/span>\r\n\r\n  return<\/span> decompress<\/span>(<\/span>buf<\/span>);<\/span>\r\n}<\/span>\r\n\r\n\/**\r\n * \u66f8\u304d\u8fbc\u307f\r\n * @param {string} key\r\n * @param {string} value\r\n * @param {number} expireSec\r\n *\/<\/span>\r\nasync<\/span> function<\/span> set<\/span>(<\/span>key<\/span>:<\/span> string<\/span>,<\/span> value<\/span>:<\/span> string<\/span>,<\/span> expireSec<\/span>:<\/span> number<\/span>):<\/span> Promise<\/span><<\/span>void<\/span>><\/span> {<\/span>\r\n  await<\/span> redis<\/span>.<\/span>set<\/span>(<\/span>key<\/span>,<\/span> compress<\/span>(<\/span>value<\/span>),<\/span> '<\/span>EX<\/span>'<\/span>,<\/span> expireSec<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            \u8bf7\u6ce8\u610f\uff0c\u538b\u7f29\u548c\u89e3\u538b\u4f1a\u6d88\u8017CPU\u8d44\u6e90\uff0c\u6709\u53ef\u80fd\u964d\u4f4e\u6027\u80fd\u3002
            \n\u56e0\u6b64\uff0c\u5728\u5f15\u5165\u65f6\u9700\u8981\u6d4b\u91cfCPU\u7684\u6d88\u8017\uff0c\u5e76\u91cd\u65b0\u8c03\u6574\u8d44\u6e90\u3002<\/p>\n
            \u4e3a\u4e86\u89e3\u51b3\u5ef6\u8fdf\u6076\u5316\u7684\u95ee\u9898\uff0c\u9700\u8981\u6839\u636e\u6570\u636e\u5927\u5c0f\u8fdb\u884c\u6d4b\u91cf\u5e76\u505a\u51fa\u5224\u65ad\u3002<\/p>\n
            \u63d0\u4f9b\u7684\u53c2\u8003<\/h2>\n
            Redis Cluster\u7684\u5de5\u4f5c\u539f\u7406\u975e\u5e38\u6e05\u6670\u6613\u61c2\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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