{"id":201189,"date":"2025-05-10T10:04:06","date_gmt":"2025-05-10T02:04:06","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201189\/"},"modified":"2025-05-10T10:04:06","modified_gmt":"2025-05-10T02:04:06","slug":"%e7%bc%93%e5%ad%98%e6%9b%bf%e6%8d%a2%e7%ad%96%e7%95%a5%e5%8f%8a%e5%ba%94%e7%94%a8%e4%bb%a5redis%e3%80%81innodb%e4%b8%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201189\/","title":{"rendered":"\u7f13\u5b58\u66ff\u6362\u7b56\u7565\u53ca\u5e94\u7528(\u4ee5Redis\u3001InnoDB\u4e3a\u4f8b)"},"content":{"rendered":"

<\/b> <\/p>\n

\u7f13\u5b58\u66ff\u6362\u7b56\u7565\u53ca\u5e94\u7528(\u4ee5Redis\u3001InnoDB\u4e3a\u4f8b)<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300a\u7f13\u5b58\u66ff\u6362\u7b56\u7565\u53ca\u5e94\u7528(\u4ee5Redis\u3001InnoDB\u4e3a\u4f8b)\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~<\/p>\n

1 \u6982\u8ff0<\/h2>\n

\u5728\u64cd\u4f5c\u7cfb\u7edf\u7684\u9875\u9762\u7ba1\u7406\u4e2d\uff0c\u5185\u5b58\u4f1a\u7ef4\u62a4\u4e00\u90e8\u5206\u6570\u636e\u4ee5\u5907\u8fdb\u7a0b\u4f7f\u7528\uff0c\u4f46\u662f\u7531\u4e8e\u5185\u5b58\u7684\u5927\u5c0f\u5fc5\u7136\u662f\u8fdc\u8fdc\u5c0f\u4e8e\u786c\u76d8\u7684\uff0c\u5f53\u67d0\u4e9b\u8fdb\u7a0b\u8bbf\u95ee\u5230\u5185\u5b58\u4e2d\u6ca1\u6709\u7684\u6570\u636e\u65f6\uff0c\u5fc5\u7136\u9700\u8981\u4ece\u786c\u76d8\u4e2d\u8bfb\u8fdb\u5185\u5b58\uff0c\u6240\u4ee5\u8feb\u4e8e\u5185\u5b58\u5bb9\u91cf\u7684\u538b\u529b\u4e0b\u8feb\u4f7f\u64cd\u4f5c\u7cfb\u7edf\u5c06\u4e00\u4e9b\u9875\u6362\u51fa\uff0c\u6216\u8005\u8bf4\u8e22\u51fa\uff0c\u800c\u51b3\u5b9a\u5c06\u54ea\u4e9b\uff08\u4e2a\uff09\u9875\u9762\u8e22\u51fa\u5c31\u662f\u5185\u5b58\u66ff\u6362\u7b56\u7565\u3002<\/p>\n

\u6211\u4eec\u8003\u8651\u5185\u5b58\u4e2d\u7684\u9875\u5b9e\u9645\u4e0a\u662f\u6574\u4e2a\u7cfb\u7edf\u9875\u7684\u5b50\u96c6\uff0c\u6240\u4ee5\u5185\u5b58\u53ef\u4ee5\u5f53\u6210\u7cfb\u7edf\u4e2d\u865a\u62df\u5185\u5b58\u7684\u7f13\u5b58\uff08Cache\uff09\uff0c\u6240\u4ee5\u9875\u9762\u7f6e\u6362\u7b97\u6cd5\u5c31\u662f\u7f13\u5b58\u66ff\u6362\u7684\u65b9\u6cd5\u3002<\/p>\n

\u4e00\u822c\u610f\u4e49\u4e0b\uff0c\u9009\u53d6\u9875\u9762\u7f6e\u6362\u7b97\u6cd5\u5373\u9009\u53d6\u4e00\u4e2a\u7f13\u5b58\u547d\u4e2d\u7387\u66f4\u9ad8\u7684\u6216\u8005\u8bf4\u7f3a\u9875\u7387\u66f4\u4f4e\u7684\u7b97\u6cd5\uff0c\u4f46\u5b9e\u9645\u4e0a\u6709\u65f6\u5019\u968f\u7740\u7b97\u6cd5\u7f13\u5b58\u547d\u4e2d\u7387\u63d0\u5347\uff0c\u7b97\u6cd5\u590d\u6742\u5ea6\u4e5f\u5728\u4e0a\u5347\uff0c\u6240\u4ee5\u5e26\u6765\u7684\u7cfb\u7edf\u5f00\u9500\u4e5f\u662f\u5728\u4e0a\u5347\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u4e0d\u5f97\u4e0d\u5728\u7cfb\u7edf\u5f00\u9500\u548c\u7b97\u6cd5\u590d\u6742\u7a0b\u5ea6\u4e2d\u95f4\u53d6\u4e00\u4e2a\u6298\u4e2d\uff0c\u6bd4\u5982Redis\u4e2d\u91c7\u53d6\u7684\u7c7bLRU\u7f13\u5b58\u7f6e\u6362\u7b56\u7565\u5b9e\u9645\u4e0a\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u6bd4\u8d77\u7406\u60f3LRU\u7f13\u5b58\u547d\u4e2d\u7387\u662f\u4f4e\u7684\uff0c\u4f46\u7406\u60f3LRU\u5b9e\u73b0\u8d77\u6765\u4f1a\u7ed9\u7cfb\u7edf\u5e26\u6765\u66f4\u5927\u7684\u5f00\u9500\uff0c\u5f97\u4e0d\u507f\u5931\u3002<\/p>\n

2 \u9875\u9762\u7f6e\u6362\u7b97\u6cd5<\/h2>\n

\u4e0b\u9762\u4ecb\u7ecd\u6700\u5e38\u89c1\u7684\u4e94\u79cd\u7f6e\u6362\u7b56\u7565\uff0c\u5176\u4e2d\u6700\u4f73\u7f6e\u6362\u7b97\u6cd5\u662f\u7406\u8bba\u4e0a\u5f88\u96be\u5b9e\u73b0\u7684\uff0c\u5176\u4f59\u7684FIFO\u3001LRU\u3001LFU\uff0c\u5176\u7b97\u6cd5\u590d\u6742\u5ea6\u3001\u5f00\u9500\u662f\u9012\u589e\u7684\uff0c\u4f46\u662f\u7f3a\u9875\u7387\u4e5f\u662f\u8d8a\u6765\u8d8a\u4f4e\uff0c\u6216\u8005\u8bf4\u8d8a\u6765\u8d8a\u63a5\u8fd1\u6700\u4f73\u7f6e\u6362\u7b56\u7565\u7684\u3002\u6700\u540e\u4e00\u79cd\u65f6\u949f\u7f6e\u6362\u7b97\u6cd5\u662f\u4e00\u79cd\u8fd1\u4f3c\u7684LRU\u7b97\u6cd5\uff0c\u662f\u4fdd\u8bc1\u4e86\u4f4e\u7cfb\u7edf\u5f00\u9500\u4e0b\u540c\u65f6\u8f83\u4f4e\u7684\u7f3a\u9875\u7387\u7684\u4e00\u79cd\u6298\u4e2d\u9009\u62e9\u3002<\/p>\n

2.1 \u6700\u4f73\uff08Optimal\uff09\u7f6e\u6362\u7b97\u6cd5<\/h3>\n

\u6700\u4f73\u7f6e\u6362\u7b97\u6cd5\uff0c\u5176\u6240\u9009\u62e9\u7684\u88ab\u6dd8\u6c70\u7684\u9875\u9762\u5c06\u662f\u4ee5\u540e\u6c38\u4e0d\u4f7f\u7528\u7684\uff0c\u6216\u662f\u5728\u6700\u957f\uff08\u672a\u6765\uff09\u65f6\u95f4\u5185\u4e0d\u518d\u88ab\u8bbf\u95ee\u7684\u9875\u9762\u3002\u542c\u540d\u5b57\u5b9a\u4e49\u5f88\u663e\u7136\u9875\u9762\u672a\u6765\u7684\u4f7f\u7528\u60c5\u51b5\u5b83\u5c31\u4e0d\u53ef\u9884\u6d4b\uff0c\u6240\u4ee5\u6700\u4f73\u7f6e\u6362\u7b97\u6cd5\u53ea\u662f\u7406\u8bba\u4e0a\u7684\u6700\u4f18\u65b9\u6cd5\uff0c\u5b9e\u9645\u4e0a\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u5e76\u6ca1\u6cd5\u5b8c\u6210\uff0c\u6240\u4ee5\u66f4\u591a\u7684\u662f\u4f5c\u4e3a\u8861\u91cf\u5176\u4ed6\u7f6e\u6362\u7b97\u6cd5\u7684\u6807\u51c6\u3002<\/p>\n

2.2 \u5148\u8fdb\u5148\u51fa\uff08FIFO\uff09\u7f6e\u6362\u7b97\u6cd5<\/h3>\n

\u8bb8\u591a\u65e9\u671f\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e3a\u4e86\u4fdd\u8bc1\u7b97\u6cd5\u7684\u7b80\u5355\uff0c\u907f\u514d\u9ad8\u590d\u6742\u5ea6\u7684\u7b97\u6cd5\uff0c\u5c1d\u8bd5\u4e86\u6700\u7b80\u5355\u7684\u7f6e\u6362\u7b56\u7565\uff0c\u5373FIFO\u7f6e\u6362\u7b56\u7565\uff0c\u987e\u540d\u601d\u4e49\u5c31\u662f\u7ef4\u62a4\u4e00\u4e2a\u9875\u7684\u961f\u5217\uff0c\u6700\u5148\u8fdb\u5165\u5185\u5b58\u7684\u9875\u6700\u5148\u88ab\u6dd8\u6c70\uff0c\u8fd9\u6837\u7684\u7b97\u6cd5\u590d\u6742\u5ea6\u4f4e\uff0c\u7cfb\u7edf\u5f00\u9500\u4e5f\u6781\u4f4e\uff0c\u4f46\u662f\u663e\u7136\u547d\u4e2d\u7387\u4f1a\u4e0b\u964d\u3002<\/p>\n

\u53e6\u5916\u8003\u8651\u4e00\u79cd\u60c5\u51b5\uff0c\u589e\u5927\u7f13\u5b58\u65f6\uff0c\u4e00\u822c\u610f\u4e49\u4e0b\u7f13\u5b58\u7684\u547d\u4e2d\u7387\u5fc5\u7136\u4f1a\u4e0a\u5347\uff0c\u4f46\u662fFIFO\u7b97\u6cd5\u5219\u5728\u6709\u7684\u65f6\u5019\u5219\u4f1a\u4e0b\u964d\uff0c\u8fd9\u79cd\u73b0\u8c61\u53eb\u505aBelady\u73b0\u8c61\u3002\u539f\u56e0\u662fFIFO\u7b97\u6cd5\u6ca1\u6709\u8003\u8651\u5230\u7a0b\u5e8f\u7684\u5c40\u90e8\u6027\u539f\u5219\uff0c\u8e22\u51fa\u7684\u9875\u9762\u5f88\u53ef\u80fd\u662f\u7a0b\u5e8f\u7ecf\u5e38\u6027\u8bbf\u95ee\u7684\u9875\u9762\u3002<\/p>\n

Belady\u73b0\u8c61\u7684\u5b9e\u4f8b\u5206\u6790\u53ef\u4ee5\u53c2\u8003<\/p>\n

2.3 \u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff08Least Recently Used,LRU\uff09\u7f6e\u6362\u7b97\u6cd5<\/h3>\n

\u4e3a\u4e86\u89e3\u51b3Belady\u73b0\u8c61\uff0c\u540c\u65f6\u4e5f\u662f\u57fa\u4e8e\u7a0b\u5e8f\u7684\u5c40\u90e8\u6027\u539f\u5219\uff08Locality of reference\uff0c\u6307\u7684\u662f\u5728\u8ba1\u7b97\u673a\u79d1\u5b66\u8ba1\u7b97\u673a\u79d1\u5b66\u9886\u57df\u4e2d\u5e94\u7528\u7a0b\u5e8f\u5728\u8bbf\u95ee\u5185\u5b58\u7684\u65f6\u5019\uff0c\u503e\u5411\u4e8e\u8bbf\u95ee\u5185\u5b58\u4e2d\u8f83\u4e3a\u9760\u8fd1\u7684\u503c\u3002\uff09\u5c31\u6709\u4e86LRU\u7f6e\u6362\u7b56\u7565\uff0c\u4ece\u7a0b\u5e8f\u4ee3\u7801\u7684\u89d2\u5ea6\u7406\u89e3\u5c40\u90e8\u6027\u539f\u5219\u5c31\u662f\uff0c\u7a0b\u5e8f\u4e00\u822c\u503e\u5411\u4e8e\u9891\u7e41\u7684\u8bbf\u95ee\u67d0\u4e9b\u4ee3\u7801\uff08\u6bd4\u5982\u5faa\u73af\uff09\u6216\u8005\u6570\u636e\u7ed3\u6784\uff08\u6bd4\u5982\u5faa\u73af\u8bbf\u95ee\u7684\u6570\u7ec4\uff09\uff0c\u56e0\u6b64\u6211\u4eec\u5e94\u8be5\u4f7f\u7528\u5386\u53f2\u8bbf\u95ee\u6570\u636e\u6765\u51b3\u5b9a\uff0c\u54ea\u4e9b\u9875\u5e94\u8be5\u88ab\u8e22\u51fa\uff0c\u54ea\u4e9b\u9875\u4e0d\u5e94\u8be5\u88ab\u8e22\u51fa\uff0c\u5177\u4f53\u7684\u5c31\u662f\uff0c\u6700\u8fd1\u6ca1\u6709\u88ab\u8bbf\u95ee\u7684\u9875\u4f18\u5148\u88ab\u8e22\u51fa\u3002\u8fd9\u4e2a\u5176\u5b9e\u4e0d\u96be\u7406\u89e3\uff0c\u901a\u8fc7\u4e00\u4e2a\u8bbf\u95ee\u987a\u5e8f\u7684\u961f\u5217\uff0c\u6bcf\u6b21\u8bbf\u95ee\u67d0\u4e2a\u9875\uff0c\u5c31\u5c06\u6b64\u9875\u79fb\u5230\u961f\u9996\uff0c\u5f53\u5185\u5b58\uff08\u7f13\u5b58\uff09\u6ee1\u4e86\u65f6\u4f18\u5148\u4ece\u961f\u5c3e\u8e22\u51fa\u76f8\u5e94\u7684\u9875\u3002\uff08\u4e0b\u9762\u7ed9\u51fa\u4e00\u4e2a\u4f8b\u5b50\uff0c\u8868\u6765\u81ea\u64cd\u4f5c\u7cfb\u7edf\u5bfc\u8bba\u7b2c22\u7ae0\uff09<\/p>\n

<\/p>\n

\u4f46\u662f\u663e\u7136\u7684\u662f\uff0cLRU\u4f1a\u5e26\u6765\u66f4\u5927\u7684\u7cfb\u7edf\u5f00\u9500\uff0c\u56e0\u4e3a\u6211\u4eec\u9700\u8981\u9891\u7e41\u7684\u5c06\u8bbf\u95ee\u8fc7\u7684\u9875\u7f6e\u4e8e\u8bbf\u95ee\u5e8f\u5217\u7684\u9996\u90e8\uff0c\u8fd9\u5c31\u9700\u8981\u5bf9\u8bbf\u95ee\u961f\u5217\u7684\u5185\u5bb9\u8fdb\u884c\u9891\u7e41\u7684\u589e\u5220\uff0c\u800cFIFO\u53ea\u9700\u8981\u7b80\u5355\u6392\u5217\u5373\u53ef\u3002<\/p>\n

2.4 \u6700\u4e0d\u7ecf\u5e38\u4f7f\u7528\uff08Least Frequently Used,LFU\uff09\u7f6e\u6362\u7b97\u6cd5<\/h3>\n

\u5982\u679c\u8bf4LRU\u662f\u901a\u8fc7\u6240\u6709\u9875\u9762\u7684\u6700\u8fd1\u4f7f\u7528\u60c5\u51b5\u6216\u8005\u8bf4\u8bbf\u95ee\u65f6\u95f4\u6765\u770b\uff0c\u90a3\u4e48LFU\u5373\u901a\u8fc7\u8bbf\u95ee\u9891\u7387\u6765\u51b3\u5b9a\u54ea\u4e9b\u9875\u9762\u9700\u8981\u88ab\u8e22\u51fa\uff0c\u6839\u636e\u7a0b\u5e8f\u7684\u5c40\u90e8\u6027\u539f\u5219\uff0c\u663e\u7136LFU\u4f1a\u5e26\u6765\u66f4\u9ad8\u7684\u7f13\u5b58\u547d\u4e2d\u7387\uff0c\u4f46\u662f\u8003\u8651\u5230\u9700\u8981\u8bb0\u5f55\u9891\u7387\u5e76\u4e14\u9891\u7e41\u7684\u8c03\u6574\u961f\u5217\uff0c\u5b9e\u9645\u4e0a\u5e26\u6765\u7684\u7cfb\u7edf\u5f00\u9500\u4f1a\u6bd4LRU\u66f4\u5927\u3002<\/p>\n

\u4e0b\u56fe\u63cf\u8ff0\u4e86\u4e00\u4e2aLFU\u7684\u6267\u884c\u8fc7\u7a0b\uff0c\u5927\u5199\u5b57\u6bcd\u4e3a\u76f8\u5e94\u7684\u9875\uff0c\u5706\u5708\u4e2d\u7684\u6570\u5b57\u4ee3\u8868\u8bbf\u95ee\u9891\u7387\uff0c\u8bbf\u95ee\u9891\u7387\u6700\u4f4e\u7684\u5728\u961f\u5217\u7684\u6700\u540e\uff0c\u5f53\u9700\u8981\u8e22\u51fa\u65f6\uff0c\u4f18\u5148\u8e22\u51fa\u961f\u5217\u672b\u5c3e\u7684\u9875\u3002<\/p>\n

<\/p>\n

2.5 \u65f6\u949f\uff08CLOCK\uff09\u7f6e\u6362\u7b97\u6cd5<\/h3>\n

\u4e0a\u6587\u8c08\u5230\u4e86LRU\u548cLFU\u4f1a\u5e26\u6765\u66f4\u9ad8\u7684\u7f13\u5b58\u547d\u4e2d\u7387\uff0c\u4f46\u662f\u8ba1\u7b97\u5f00\u9500\u663e\u7136\u4f1a\u66f4\u5927\uff0c\u7ed9\u7cfb\u7edf\u5e26\u6765\u66f4\u9ad8\u7684\u65f6\u95f4\u5f00\u9500\uff0c\u800c\u4e00\u4e9b\u7c7bLRU\u7b97\u6cd5\u5c31\u51fa\u73b0\u4e86\uff0c\u6bd4\u5982\u65f6\u949f\u7b97\u6cd5\u3002<\/p>\n

\u7cfb\u7edf\u4e2d\u7684\u6240\u6709\u9875\u90fd\u653e\u5728\u4e00\u4e2a\u5faa\u73af\u5217\u8868\u4e2d\u3002\u65f6\u949f\u6307\u9488\uff08clock hand\uff09\u5f00\u59cb\u65f6\u6307\u5411\u67d0\u4e2a\u7279\u5b9a\u7684\u9875\uff08\u54ea\u4e2a\u9875\u4e0d\u91cd\u8981\uff09\u3002\u5f53\u5fc5\u987b\u8fdb\u884c\u9875\u66ff\u6362\u65f6\uff0c\u64cd\u4f5c\u7cfb\u7edf\u68c0\u67e5\u5f53\u524d\u6307\u5411\u7684\u9875P\u7684\u4f7f\u7528\u4f4d\u662f1\u8fd8\u662f0\u3002\u5982\u679c\u662f1\uff0c\u5219\u610f\u5473\u7740\u9875\u9762P\u6700\u8fd1\u88ab\u4f7f\u7528\uff0c \u56e0\u6b64\u4e0d\u9002\u5408\u88ab\u66ff\u6362\u3002\u7136\u540e\uff0cP\u7684\u4f7f\u7528\u4f4d\u8bbe\u7f6e\u4e3a0\uff0c\u65f6\u949f\u6307\u9488\u9012\u589e\u5230\u4e0b\u4e00\u9875\uff08P+1\uff09\u3002\u8be5\u7b97\u6cd5\u4e00\u76f4\u6301\u7eed\u5230\u627e\u5230\u4e00\u4e2a\u4f7f\u7528\u4f4d\u4e3a 0 \u7684\u9875\uff0c\u4f7f\u7528\u4f4d\u4e3a 0 \u610f\u5473\u7740\u8fd9\u4e2a\u9875\u6700\u8fd1\u6ca1\u6709\u88ab\u4f7f\u7528\u8fc7\uff08\u5728\u6700\u574f\u7684\u60c5\u51b5\u4e0b\uff0c\u6240\u6709\u7684\u9875\u90fd\u5df2\u7ecf\u88ab\u4f7f\u7528\u4e86\uff0c\u90a3\u4e48\u5c31\u5c06\u6240\u6709\u9875\u7684\u4f7f\u7528\u4f4d\u90fd\u8bbe\u7f6e\u4e3a 0\uff09\u3002<\/p>\n

<\/p>\n

3 \u6734\u7d20LRU\u7684\u5b9e\u73b0<\/h2>\n

\u4ee5leetcode\u4e3a\u4f8b\uff0c\u6700\u76f4\u89c2\u6734\u7d20\u7684LRU\u7f13\u5b58\u673a\u5236\u53ef\u4ee5\u4f7f\u7528\u54c8\u5e0c\u8868\u4ee5\u53ca\u53cc\u5411\u94fe\u8868\u5b9e\u73b0\uff0c\u5f53\u7136Java\u7684\u96c6\u5408LinkedHashMap<\/code>\u5373\u5b9e\u73b0\u4e86\u4e00\u4e2a\u54c8\u5e0c\u8868+\u94fe\u8868\u7684\u7ec4\u5408\uff0c\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u5b9e\u73b0\u3002<\/p>\n

\u4f46\u4e3a\u4e86\u66f4\u5f62\u8c61\u7684\u7406\u89e3LRU\u7684\u673a\u5236\uff0c\u91c7\u7528HashMap<\/code>\u4ee5\u53ca\u624b\u5199\u4e00\u4e2a\u53cc\u5411\u94fe\u8868\u6765\u5b9e\u73b0\u3002\u5177\u4f53\u7684\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793a<\/p>\n

<\/p>\n

\u7ef4\u62a4\u4e00\u4e2a\u5927\u5c0f\u4e3a\u7f13\u5b58\u5bb9\u91cf\u7684map\uff0ckey\u503c\u4e3a\u7f13\u5b58\u6570\u636e\u7684key\uff0cvalue\u5b58\u50a8\u6307\u5411\u76f8\u5e94\u8282\u70b9\u7684\u5f15\u7528\uff0c\u6570\u636e\u94fe\u8868\u4f7f\u7528\u53cc\u5411\u94fe\u8868\u4fbf\u4e8e\u589e\u5220\uff0c\u5f53\u8bbf\u95ee\u5230\u67d0\u6761\u6570\u636e\u65f6\uff0c\u901a\u8fc7map\u4ee5O\uff081\uff09\u590d\u6742\u5ea6\u5b9a\u4f4d\u5230\u6570\u636e\u7684\u5e94\u7528\uff0c\u7136\u540e<\/p>\n

    \n
  • \u5220\u9664\u8bbf\u95ee\u8282\u70b9<\/li>\n
  • \u6dfb\u52a0\u8bbf\u95ee\u8282\u70b9\u5230\u961f\u9996<\/li>\n<\/ul>\n

    \u5f53\u8282\u70b9\u6570\u91cf>\u7f13\u5b58\u5bb9\u91cf\u65f6\uff0c\u5220\u9664\u961f\u5c3e\u5143\u7d20\uff0c\u540c\u65f6\u79fb\u9664map\u4e2d\u7684\u6570\u636e\uff0c\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\u3002<\/p>\n

    \npublic class LRUCache {\nclass DLinkedNode {\n    int key, value;\n    DLinkedNode pre;\n    DLinkedNode next;\n    public DLinkedNode(){}\n    public DLinkedNode(int key, int value){this.key = key; this.value = value;}\n}\n    private Map\n   \n     cache = new HashMap();\n    private int size;\n    private int cal;\n    private DLinkedNode head, tail;\n    public LRUCache(int capacity) {\n        size = 0;\n        cal = capacity;\n        head = new DLinkedNode();\n        tail = new DLinkedNode();\n        head.next = tail;\n        tail.pre = head;\n    }\n    \n    public int get(int key) {\n        DLinkedNode node = cache.get(key);\n        if (node == null) {\n            return -1;\n        }\n        moveToHead(node);\n        return node.value;\n    }\n    \n    public void put(int key, int value) {\n        DLinkedNode node = cache.get(key);\n        if (node == null) {\n            DLinkedNode newNode = new DLinkedNode(key, value);\n            cache.put(key, newNode);\n            size++;\n            addToHead(newNode);\n            if (size > cal) {\n                DLinkedNode tail = removeTail();\n                cache.remove(tail.key);\n                size--;\n            }\n        } else {\n            node.value = value;\n            moveToHead(node);\n        }\n    }\n\n    private void moveToHead(DLinkedNode node) {\n        removeNode(node);\n        addToHead(node);\n    }\n\n    private void removeNode(DLinkedNode node) {\n        node.pre.next = node.next;\n        node.next.pre = node.pre;\n    }\n\n    private void addToHead(DLinkedNode node) {\n        node.pre = head;\n        node.next = head.next;\n        head.next.pre = node;\n        head.next = node;\n    }\n\n    private DLinkedNode removeTail() {\n        DLinkedNode realTail = tail.pre;\n        removeNode(realTail);\n        return realTail;\n    }\n}\n   <\/pre>\n
    4 LRU\u7684\u5b9e\u9645\u5e94\u7528<\/h2>\n
    4.1 \u4ee5Redis\u4e3a\u4f8b<\/h3>\n
    \u4e0a\u9762\u8c08\u5230\u8981\u5b9e\u73b0\u4e00\u4e2a\u6734\u7d20\u7684LRU\u7b97\u6cd5\uff0c\u9700\u8981\u7ef4\u62a4\u4e00\u4e2a\u53cc\u5411\u94fe\u8868\uff0c\u5b58\u50a8\u524d\u9a71\u3001\u540e\u7ee7\u6307\u9488\uff0c\u5fc5\u7136\u4f1a\u5728\u5bf8\u91d1\u5bf8\u571f\u7684\u7f13\u5b58\uff08\u5185\u5b58\uff09\u4e2d\u5e26\u6765\u4e0d\u5fc5\u8981\u7684\u5f00\u9500\u3002\u4e0a\u8ff0\u63d0\u5230\u7684\u65f6\u949f\u7b97\u6cd5\u5c31\u662f\u4e00\u79cd\u7c7bLRU\u7b97\u6cd5\uff0c\u7528\u66f4\u5c11\u7684\u7cfb\u7edf\u5f00\u9500\u5e26\u6765\u4e86\u63a5\u8fd1\u6734\u7d20LRU\u7684\u547d\u4e2d\u7387\u3002\u800c\u4e8b\u5b9e\u4e0a\uff0cRedis\u4e2d\u91c7\u53d6\u7684LRU\u7b97\u6cd5\u4e5f\u662f\u4e00\u79cd\u7c7bLRU\u7b97\u6cd5\uff0c\u5b83\u4e5f\u5e26\u6765\u4e86\u65f6\u949f\u7b97\u6cd5\u7c7b\u4f3c\u7684\u6548\u679c\u3002\u5177\u4f53\u7684\u662fRedis\u901a\u8fc7\u968f\u673a\u9009\u53d6\u51e0\u4e2akey\u503c\uff0c\u6dd8\u6c70\u65f6\u95f4\u6233\u6700\u9760\u524d\u7684key\uff0c\u6d89\u53ca\u5230LRU\u7684\u6dd8\u6c70\u7b56\u7565maxmemory_policy<\/code>\uff08\u8fd9\u4e2a\u5b57\u6bb5\u53ef\u4ee5\u9009\u62e9\u4e0d\u540c\u7684\u7f13\u5b58\u6dd8\u6c70\u7b56\u7565\uff0cRedis\u4e00\u79cd\u63d0\u4f9b\u4e868\u79cd\uff0c\u672c\u6587\u53ea\u5206\u6790\u5176\u4e2d\u4e0eLRU\u6709\u5173\u7684\uff09\u7684\u8d4b\u503c\u4e24\u79cd\uff1a<\/p>\n
      \n
    • allkeys-lru<\/code>: \u5bf9\u6240\u6709\u7684\u952e\u90fd\u91c7\u53d6LRU<\/code>\u6dd8\u6c70<\/li>\n
    • volatile-lru<\/code>: \u4ec5\u5bf9\u8bbe\u7f6e\u4e86\u8fc7\u671f\u65f6\u95f4\u7684\u952e\u91c7\u53d6LRU<\/code>\u6dd8\u6c70<\/li>\n<\/ul>\n
      \u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u62e9\u4e0a\u8ff0\u4e24\u79cdLRU\u6dd8\u6c70\u7b56\u7565\uff0c\u5728\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u7a0b\u5e8f\u90fd\u5b58\u5728\u5c40\u90e8\u6027\uff0c\u6216\u8005\u8bf4\u5e42\u6b21\u5206\u5e03\uff08\u4e8c\u516b\u6cd5\u5219\uff09\uff0c\u5373\u5c11\u6570\u6570\u636e\u6bd4\u5176\u4ed6\u5927\u591a\u6570\u6570\u636e\u8bbf\u95ee\u7684\u66f4\u591a\uff0c\u6240\u4ee5\u901a\u5e38\u4f7f\u7528allkeys-lru<\/code>\u7b56\u7565\uff0c\u800c\u5f53\u6709\u9700\u6c42\u9700\u8981\u957f\u671f\u4fdd\u7559\u4e00\u90e8\u5206\u6570\u636e\u5728\u5185\u5b58\u4e2d\u65f6\u9009\u53d6volatile-lru<\/code>\u5373\u53ea\u89c4\u5b9a\u90e8\u5206\u9700\u8981\u6dd8\u6c70\u7684\u6570\u636e\u3002<\/p>\n
      \u4e0b\u9762\u770b\u4e00\u4e0b\u5177\u4f53\u662f\u5982\u4f55\u8bbe\u7f6e\u7684\uff0cRedis\u6574\u4f53\u4e0a\u662f\u4e00\u4e2a\u5927\u7684\u5b57\u5178\uff0ckey\u662f\u4e00\u4e2astring\uff0c\u800cvalue\u90fd\u4f1a\u4fdd\u5b58\u4e3a\u4e00\u4e2arobj\uff08Redis Object\uff09\uff0c\u5bf9\u4e8erobj\u7684\u5b9a\u4e49\u5982\u4e0b<\/p>\n
      \ntypedef struct redisObject {\n    unsigned type:4;\n    unsigned encoding:4;\n    unsigned lru:LRU_BITS; \/* LRU time (relative to global lru_clock) or\n                            * LFU data (least significant 8 bits frequency\n                            * and most significant 16 bits access time). *\/\n    int refcount;\n    void *ptr;\n} robj;<\/pre>\n
      \u5176\u4e2dLRU_BITS<\/code>\u5373Redis\u4e3a\u6bcf\u4e2a\u952e\u503c\u5bf9\u914d\u5907\u7684\u4e00\u4e2a\u8bb0\u5f55\u65f6\u95f4\u6233\u7684bit\u4f4d\uff0cRedis\u7684LFU\u66ff\u6362\u7b56\u7565\u4e2d\u4e5f\u4f7f\u7528\u8fd9\u4e2a\u7a7a\u95f4\uff0c\u521b\u5efa\u5bf9\u8c61\u65f6\u4f1a\u5199\u5165\u5230lru_clock<\/code>\u8fd9\u4e2a\u5b57\u6bb5\u4e2d\uff0c\u8bbf\u95ee\u5bf9\u8c61\u65f6\u4f1a\u5bf9\u5176\u8fdb\u884c\u66f4\u65b0\uff0c\u5177\u4f53\u7684\u7a7a\u95f4\u7684\u5927\u5c0f\u88ab\u5b9a\u4e49\u4e3a\u4e00\u4e2a\u5e38\u91cf<\/p>\n
      \n#define REDIS_LRU_BITS 24<\/pre>\n
      \u5927\u5c0f\u4e3a24\uff0c\u5373\u4f7f\u7528\u4e00\u4e2a\u989d\u5916\u768424bit\u7684\u7a7a\u95f4\u8bb0\u5f55\u76f8\u5bf9\u65f6\u95f4\u6233\uff08\u5373\u5bf9unix time<\/code>\u53d6\u6a21\u4e4b\u540e\u7684\u7ed3\u679c\uff09\uff0c\u9ed8\u8ba4\u7684\u65f6\u95f4\u6233\u5206\u8fa8\u7387\u662f1\u79d2\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c24bits\u7684\u7a7a\u95f4\u5982\u679c\u6ea2\u51fa\u7684\u8bdd\u9700\u8981194\u5929\uff0c\u800c\u4f5c\u4e3a\u9891\u7e41\u66f4\u65b0\u7684\u7f13\u5b58\u800c\u8a00\uff0c\u8fd9\u4e2a\u7a7a\u95f4\u591f\u7528\u4e86\u3002<\/p>\n
      \u4e0a\u9762\u63d0\u5230\u4e86Redis\u4f1a\u968f\u673a\u91c7\u6837\uff0c\u6bd4\u8f83\u5176\u8bbf\u95ee\u65f6\u95f4\u54ea\u4e2a\u66f4\u9760\u524d\uff0c\u5f53\u9700\u8981\u66ff\u6362\u65f6\u4f18\u5148\u8e22\u51fa\u91c7\u6837\u7ed3\u679c\u6700\u9760\u524d\u7684\u952e\u503c\u5bf9\uff0c\u5177\u4f53\u7684\u91c7\u6837\u4e2a\u6570\u5728\u6700\u5f00\u59cb\u662f\u9009\u53d63\u4e2akey\uff0c\u4f46\u662f\u6548\u679c\u5e76\u4e0d\u597d\uff0c\u540e\u6765\u589e\u52a0\u5230N\u4e2akey\uff0c\u4f46\u662f\u9ed8\u8ba4\u662f5\u4e2a\uff0c\u5373\u9ed8\u8ba4\u968f\u673a\u9009\u53d65\u4e2akey\uff0c\u6700\u5148\u6dd8\u6c70\u6389\u8fd95\u4e2a\u4e2d\u8ddd\u79bb\u4e0a\u6b21\u8bbf\u95ee\u65f6\u95f4\u6700\u4e45\u7684\uff0cRedis3.0\u4e2d\u53c8\u6539\u5584\u4e86\u7b97\u6cd5\u7684\u6027\u80fd\uff0c\u5373\u63d0\u4f9b\u4e86\u4e00\u4e2a\u91c7\u6837\u6c60\uff08pool\uff09\uff0c\u5019\u9009\u91c7\u6837\u6c60\u9ed8\u8ba4\u5927\u5c0f\u4e3a16\uff0c\u80fd\u591f\u586b\u514516\u4e2akey\uff0c\u66f4\u65b0\u65f6\u4eceRedis\u952e\u7a7a\u95f4\u968f\u673a\u9009\u62e9N\u4e2akey\uff0c\u5206\u522b\u8ba1\u7b97\u5b83\u4eec\u7684\u7a7a\u95f2\u65f6\u95f4idle\uff0ckey\u53ea\u4f1a\u5728pool\u4e0d\u6ee1\u6216\u8005\u7a7a\u95f2\u65f6\u95f4\u5927\u4e8epool\u91cc\u6700\u5c0f\u7684\u65f6\uff0c\u624d\u4f1a\u8fdb\u5165pool\uff0c\u7136\u540e\u4ecepool\u4e2d\u9009\u62e9\u7a7a\u95f2\u65f6\u95f4\u6700\u5927\u7684key\u6dd8\u6c70\u6389\u3002<\/p>\n
      \u5177\u4f53\u7684\u8fd9\u4e2a\u5019\u9009\u96c6\u5408\u7ed3\u6784\u4f53\u5982\u4e0b<\/p>\n
      \nstruct evictionPoolEntry {\n    unsigned long long idle; \/\/ \u7528\u4e8e\u6dd8\u6c70\u6392\u5e8f\uff0c\u5728\u4e0d\u540c\u7b97\u6cd5\u4e2d\u610f\u4e49\u4e0d\u540c\u4f18\u5148\u6dd8\u6c70\u503c\u5927\u7684\uff0c\u5355\u4f4d\u662fms\n    sds key;  \/\/ \u952e\u7684\u540d\u5b57\n    \/\/ ...\n};<\/pre>\n
      \u6240\u4ee5\u5173\u952e\u5728pool\u4e2d\u7684idle<\/code>\u5b57\u6bb5\u7684\u8ba1\u7b97\uff0c\u5b9e\u9645\u4e0a\u53ea\u9700\u8981\u4f7f\u7528\u5f53\u524d\u7684\u65f6\u95f4\u6233\u51cf\u53bblru_clock<\/code>\u5373\u53ef\uff0c\u4f46\u662f\u6240\u8bb0\u5f55\u7684\u65f6\u95f4\u6233\u90fd\u662f\u53d6\u6a21\u4e4b\u540e\u7684\u7ed3\u679c\uff0c\u6240\u4ee5\u8fd8\u9700\u8981\u6bd4\u8f83\u5f53\u524d\u8ba1\u7b97\u51fa\u6765\u7684\u65f6\u95f4\u6233\u662f\u5426\u5927\u4e8elru_clock<\/code>\uff0c\u5982\u679c\u4e0d\u662f\uff0c\u5219\u9700\u8981\u5c06\u5f53\u524d<\/p>\n
      \u65f6\u95f4\u6233+194\u5929\uff08\u6a21\u6570\uff09\u518d\u51cf\u53bblru_clock<\/code>\u3002\u5177\u4f53\u7684\u8ba1\u7b97\u8fc7\u7a0b\u5982\u4e0b<\/p>\n
      \n\/\/ \u4ee5\u79d2\u4e3a\u7cbe\u5ea6\u8ba1\u7b97\u5bf9\u8c61\u8ddd\u79bb\u4e0a\u4e00\u6b21\u8bbf\u95ee\u7684\u95f4\u9694\u65f6\u95f4\uff0c\u7136\u540e\u8f6c\u5316\u6210\u6beb\u79d2\u8fd4\u56de\nunsigned long long estimateObjectIdleTime(robj *o) {\n    unsigned long long lruclock = LRU_CLOCK();\n    if (lruclock >= o->lru) {\n        return (lruclock - o->lru) * LRU_CLOCK_RESOLUTION;\n    } else {\n        return (lruclock + (LRU_CLOCK_MAX - o->lru)) *\n                    LRU_CLOCK_RESOLUTION;\n    }\n}<\/pre>\n
      \u53e6\u5916Redis\u5b98\u65b9\u6587\u6863\u91cc\u6709\u5bf9\u4e8e\u5019\u9009\u6570\u4e3a5\u300110\u5728redis2.8\u65e0\u4faf\u9009\u6c60\uff0c\u4ee5\u53ca3.0\u52a0\u4faf\u9009\u6c60\u7684\u5bf9\u6bd4\u3002<\/p>\n
      <\/p>\n
      \u56db\u5f20\u56fe\u4f9d\u6b21\u662f\uff0c\u7406\u8bbaLRU\u7684\u4f7f\u7528\u60c5\u51b5\u3001\u6709pool\u91c7\u6837\u6570\u4e3a10\u7684\u5019\u9009\u60c5\u51b5\u3001\u65e0pool\u91c7\u6837\u6570\u4e3a5\u7684\u60c5\u51b5\u3001\u6709pool\u91c7\u6837\u6570\u4e3a10\u7684\u60c5\u51b5\u3002\u5176\u4e2d<\/p>\n
        \n
      • \u7eff\u8272\u90e8\u5206\u662f\u65b0\u6dfb\u52a0\u7684key<\/li>\n
      • \u7070\u8272\u90e8\u5206\u662f\u6700\u8fd1\u4f7f\u7528\u7684key\u6d45<\/li>\n
      • \u7070\u8272\u90e8\u5206\u662f\u66ff\u6362\u7684key<\/li>\n<\/ul>\n
        \u53ef\u4ee5\u770b\u51fa\u91c7\u53d6Redis3.0\u7684\u91c7\u53d6\u7ef4\u62a4\u4e00\u4e2a\u5019\u9009\u6dd8\u6c70\u6c60\u7684\u65b9\u6cd5\u5df2\u7ecf\u80fd\u591f\u63a5\u8fd1\u5168\u5c40\u6bd4\u8f83\u60c5\u51b5\u4e0b\u4e5f\u5373\u6734\u7d20LRU\u7684\u7ed3\u679c\u3002<\/p>\n
        \u8be6\u7ec6\u7684\u5206\u6790\u53ef\u4ee5\u53c2\u8003https:\/\/redis.io\/topics\/lru-cache<\/p>\n
        4.2 \u4ee5MySQL\u7684InnoDB\u5f15\u64ce\u4e3a\u4f8b<\/h3>\n
        \u6b64\u5904InnoDB\u7684\u7f13\u5b58\u6982\u5ff5\u4e0d\u505a\u8fc7\u591a\u8d58\u8ff0\uff0c\u53ea\u7b80\u5355\u4ecb\u7ecd\u5176\u4e2dLRU\u7684\u5e94\u7528\uff0cInnoDB\u4f1a\u628acpu\u9891\u7e41\u4f7f\u7528\u7684\u6570\u636e\u5b58\u50a8\u5728\u4e3b\u5b58\u7684\u7f13\u51b2\u6c60\uff08Buffer Pool\uff09\u4e2d\uff0c\u9274\u4e8eMySQL\u5728\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u5b58\u5728\u7740\u7ecf\u5e38\u6027\u7684\u5168\u8868\u626b\u63cf\uff0c\u6240\u4ee5\u5982\u679c\u4f7f\u7528\u6734\u7d20LRU\u5fc5\u7136\u4f1a\u9891\u7e41\u7684\u5927\u9762\u79ef\u66ff\u6362\uff0c\u9020\u6210\u6781\u4f4e\u7684\u7f13\u5b58\u547d\u4e2d\u7387\u3002<\/p>\n
        \u6240\u4ee5InnoDB\u91c7\u53d6\u4e86\u4e00\u79cd\u51b7\u70ed\u5206\u79bb\u7684\u601d\u8def\uff0c\u5373\u5c06\u6574\u4e2a\u7f13\u51b2\u6c60\u5206\u4e3a\u51b7\u533a\u548c\u70ed\u533a\u6216\u8005\u8bf4\u5e74\u8f7b\u533a\uff08New Sublist\uff09\u548c\u8001\u533a\uff08Old Sublist\uff09<\/p>\n
        <\/p>\n
        \u9ed8\u8ba4\u60c5\u51b5\u4e0b\u8ddd\u79bb\u94fe\u8868\u5c3e3\/8\u4ee5\u4e0a\u7684\u4f4d\u7f6e\u79f0\u4e3a\u65b0\u5b50\u5217\u8868\uff08\u70ed\u70b9\u533a\u57df\uff09\uff0c\u4ee5\u4e0b\u7684\u4f4d\u7f6e\u79f0\u4e3a\u65e7\u5b50\u5217\u8868\uff08\u51b7\u533a\u57df\uff09\uff0c\u67d0\u4e2a\u9875\u9762\u521d\u6b21\u52a0\u8f7d\u5230\u7f13\u51b2\u6c60\u65f6\uff0c\u653e\u5728old\u533a\u57df\u7684\u5934\u90e8\u3002\u5728\u5bf9\u67d0\u4e2a\u5904\u4e8eold\u533a\u57df\u7684\u7f13\u51b2\u9875\u8fdb\u884c\u7b2c\u4e00\u6b21\u8bbf\u95ee\u65f6\uff0c\u5c31\u5728\u5b83\u5bf9\u5e94\u7684\u63a7\u5236\u5757\u4e2d\u8bb0\u5f55\u4e0b\u8fd9\u4e2a\u8bbf\u95ee\u65f6\u95f4\uff0c\u5982\u679c\u540e\u7eed\u7684\u8bbf\u95ee\u65f6\u95f4\u548c\u7b2c\u4e00\u6b21\u8bbf\u95ee\u7684\u65f6\u95f4\u5728\u67d0\u4e2a\u65f6\u95f4\u95f4\u9694\u5185\uff08\u9ed8\u8ba4\u4e3a1000ms\uff09\uff0c\u90a3\u4e48\u8be5\u9875\u9762\u5c31\u4e0d\u4f1a\u4ece\u8001\u7684\u533a\u57df\u79fb\u52a8\u5230\u5e74\u8f7b\u533a\u57df\u7684\u5934\u90e8\uff0c\u5426\u5219\u5c06\u4ed6\u79fb\u52a8\u5230\u5e74\u8f7b\u533a\u57df\u7684\u5934\u90e8\u3002<\/p>\n
        \u800c\u5f53\u7f13\u51b2\u6c60\u6ee1\u65f6\u9700\u8981\u6dd8\u6c70\u6570\u636e\u5c31\u4eceold\u533a\u57df\u7684\u5c3e\u90e8\u8fdb\u884c\u6dd8\u6c70\uff0c\u8fd9\u6837\u6570\u636e\u8d77\u7801\u9700\u8981\u4e24\u6b21\uff08\u4e00\u6b21\u4e3a\u52a0\u8f7d\u5230\u5185\u5b58\uff0c\u7b2c\u4e8c\u6b21\u4e3a\u5927\u4e8e\u95f4\u9694\u65f6\u95f4\u7684\u8bfb\u53d6\uff09\u5408\u7406\u7684\u64cd\u4f5c\u624d\u80fd\u79fb\u52a8\u5230\u5e74\u8f7b\u533a\u57df\uff0c\u6709\u6548\u7684\u9884\u9632\u4e86\u5168\u8868\u626b\u63cf\u5e26\u6765\u7684\u547d\u4e2d\u7387\u964d\u4f4e\u95ee\u9898\u3002<\/p>\n
        \u66f4\u52a0\u8be6\u7ec6\u5177\u4f53\u7684\u63cf\u8ff0\u53ef\u4ee5\u53c2\u89c1\u5bf9InnoDB buffer poll\u7684\u89e3\u91ca\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u7f13\u5b58\u66ff\u6362\u7b56\u7565\u53ca\u5e94\u7528(\u4ee5Redis...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201189","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201189"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201189\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}