{"id":201470,"date":"2025-05-10T10:57:45","date_gmt":"2025-05-10T02:57:45","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201470\/"},"modified":"2025-05-10T10:57:45","modified_gmt":"2025-05-10T02:57:45","slug":"%e4%bd%a0%e5%a5%bdredis%ef%bc%8c%e6%88%91%e6%9c%897%e4%b8%aa%e9%97%ae%e9%a2%98%e8%a6%81%e9%97%ae%e4%bd%a0%ef%bc%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201470\/","title":{"rendered":"\u4f60\u597dRedis\uff0c\u6211\u67097\u4e2a\u95ee\u9898\u8981\u95ee\u4f60\uff01"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u4f60\u597dRedis\uff0c\u6211\u67097\u4e2a\u95ee\u9898\u8981\u95ee\u4f60\uff01<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300a\u4f60\u597dRedis\uff0c\u6211\u67097\u4e2a\u95ee\u9898\u8981\u95ee\u4f60\uff01\u300b\uff0c\u4e3b\u8981\u5305\u62ec\u534f\u8bae\u3001Redis\u3001\u901a\u8baf\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n<p>\u3010golang\u5b66\u4e60\u7f51.com\u539f\u521b\u7a3f\u4ef6\u3011Hello\uff0cRedis!\u6211\u4eec\u76f8\u5904\u5df2\u7ecf\u5f88\u591a\u5e74\u4e86\uff0c\u4ece\u6a21\u7cca\u7684\u8ba4\u8bc6\u5230\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u6df1\u5165\u7ed3\u5408\uff0c\u4f60\u7684\u597d\u6211\u4e00\u76f4\u90fd\u77e5\u9053\u4e5f\u4e00\u76f4\u90fd\u8bb0\u4f4f\uff0c\u80fd\u5426\u518d\u8ba9\u6211\u591a\u95ee\u4f60\u7684\u51e0\u4e2a\u95ee\u9898\uff0c\u8ba9\u6211\u66f4\u52a0\u6df1\u5165\u7684\u53bb\u4e86\u89e3\u4f60\u3002<\/p>\n<\/p>\n<p>\u56fe\u7247\u6765\u81ea\u5305\u56fe\u7f51<\/p>\n<p><strong><span style=\"font-size: x-large\">Redis \u7684\u901a\u8baf\u534f\u8bae\u662f\u4ec0\u4e48<\/span><\/strong><\/p>\n<\/p>\n<p>Redis \u7684\u901a\u8baf\u534f\u8bae\u662f\u6587\u672c\u534f\u8bae\uff0c\u662f\u7684\uff0cRedis \u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u901a\u8fc7 RESP(Redis Serialization Protocol)\u534f\u8bae\u901a\u4fe1\u3002<\/p>\n<p>\u6ca1\u9519\uff0c\u6587\u672c\u534f\u8bae\u786e\u5b9e\u662f\u4f1a\u6d6a\u8d39\u6d41\u91cf\uff0c\u4e0d\u8fc7\u5b83\u7684\u4f18\u70b9\u5728\u4e8e\u76f4\u89c2\uff0c\u975e\u5e38\u7684\u7b80\u5355\uff0c\u89e3\u6790\u6027\u80fd\u6781\u5176\u7684\u597d\uff0c\u6211\u4eec\u4e0d\u9700\u8981\u4e00\u4e2a\u7279\u6b8a\u7684 Redis \u5ba2\u6237\u7aef\u4ec5\u9760 Telnet \u6216\u8005\u662f\u6587\u672c\u6d41\u5c31\u53ef\u4ee5\u8ddf Redis \u8fdb\u884c\u901a\u8baf\u3002<\/p>\n<p>\u5ba2\u6237\u7aef\u7684\u547d\u4ee4\u683c\u5f0f\uff1a<\/p>\n<ul>\n<li>\n<p>\u7b80\u5355\u5b57\u7b26\u4e32 Simple Strings\uff0c\u4ee5 &#8220;+&#8221;\u52a0\u53f7\u5f00\u5934\u3002<\/p>\n<\/li>\n<li>\n<p>\u9519\u8bef Errors\uff0c\u4ee5&#8221;-&#8220;\u51cf\u53f7\u5f00\u5934\u3002<\/p>\n<\/li>\n<li>\n<p>\u6574\u6570\u578b Integer\uff0c\u4ee5 &#8220;:&#8221; \u5192\u53f7\u5f00\u5934\u3002<\/p>\n<\/li>\n<li>\n<p>\u5927\u5b57\u7b26\u4e32\u7c7b\u578b Bulk Strings\uff0c\u4ee5 &#8220;$&#8221;\u7f8e\u5143\u7b26\u53f7\u5f00\u5934\u3002<\/p>\n<\/li>\n<li>\n<p>\u6570\u7ec4\u7c7b\u578b Arrays\uff0c\u4ee5 &#8220;*&#8221;\u661f\u53f7\u5f00\u5934\u3002<\/p>\n<\/li>\n<\/ul>\n<pre>set&nbsp;hello&nbsp;abc&nbsp;\r\n\u4e00\u4e2a\u7b80\u5355\u7684\u6587\u672c\u6d41\u5c31\u53ef\u4ee5\u662fredis\u7684\u5ba2\u6237\u7aef<\/pre>\n<\/p>\n<\/p>\n<p>\u7b80\u5355\u603b\u7ed3\uff1a\u5177\u4f53\u53ef\u4ee5\u89c1 https:\/\/redis.io\/topics\/protocol \uff0cRedis \u6587\u6863\u8ba4\u4e3a\u7b80\u5355\u7684\u5b9e\u73b0\uff0c\u5feb\u901f\u7684\u89e3\u6790\uff0c\u76f4\u89c2\u7406\u89e3\u662f\u91c7\u7528 RESP \u6587\u672c\u534f\u8bae\u6700\u91cd\u8981\u7684\u5730\u65b9\uff0c\u6709\u53ef\u80fd\u6587\u672c\u534f\u8bae\u4f1a\u9020\u6210\u4e00\u5b9a\u91cf\u7684\u6d41\u91cf\u6d6a\u8d39\uff0c\u4f46\u5374\u5728\u6027\u80fd\u4e0a\u548c\u64cd\u4f5c\u4e0a\u5feb\u901f\u7b80\u5355\uff0c\u8fd9\u4e2d\u95f4\u4e5f\u662f\u4e00\u4e2a\u6743\u8861\u548c\u534f\u8c03\u7684\u8fc7\u7a0b\u3002<\/p>\n<p><strong><span style=\"font-size: x-large\">Redis \u7a76\u7adf\u6709\u6ca1\u6709 ACID \u4e8b\u52a1<\/span><\/strong><\/p>\n<\/p>\n<p>\u8981\u5f04\u6e05\u695a Redis \u6709\u6ca1\u6709\u4e8b\u52a1\uff0c\u5176\u5b9e\u5f88\u7b80\u5355\uff0c\u4e0a Rredis \u7684\u5b98\u7f51\u67e5\u770b\u6587\u6863\uff0c\u53d1\u73b0\uff1a<\/p>\n<\/p>\n<p>Redis \u786e\u5b9e\u662f\u6709\u4e8b\u52a1\uff0c\u4e0d\u8fc7\u6309\u7167\u4f20\u7edf\u7684\u4e8b\u52a1\u5b9a\u4e49 ACID \u6765\u770b\uff0cRedis \u662f\u4e0d\u662f\u90fd\u5177\u5907\u4e86 ACID \u7684\u7279\u6027\u3002<\/p>\n<p>ACID \u6307\u7684\u662f\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u539f\u5b50\u6027<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>\u4e00\u81f4\u6027<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>\u9694\u79bb\u6027<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>\u6301\u4e45\u6027<\/strong><\/p>\n<\/li>\n<\/ul>\n<p>\u6211\u4eec\u5c06\u4f7f\u7528\u4ee5\u4e0a Redis \u4e8b\u52a1\u7684\u547d\u4ee4\u6765\u68c0\u9a8c\u662f\u5426 Redis \u90fd\u5177\u5907\u4e86 ACID \u7684\u5404\u4e2a\u7279\u5f81\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u539f\u5b50\u6027<\/span><\/strong><\/p>\n<p>\u4e8b\u52a1\u5177\u5907\u539f\u5b50\u6027\u6307\u7684\u662f\uff0c\u6570\u636e\u5e93\u5c06\u4e8b\u52a1\u4e2d\u591a\u4e2a\u64cd\u4f5c\u5f53\u4f5c\u4e00\u4e2a\u6574\u4f53\u6765\u6267\u884c\uff0c\u670d\u52a1\u8981\u4e48\u6267\u884c\u4e8b\u52a1\u4e2d\u6240\u6709\u7684\u64cd\u4f5c\uff0c\u8981\u4e48\u4e00\u4e2a\u64cd\u4f5c\u4e5f\u4e0d\u4f1a\u6267\u884c\u3002<\/p>\n<p><strong>\u2460\u4e8b\u52a1\u961f\u5217<\/strong><\/p>\n<p>\u9996\u5148\u5f04\u6e05\u695a Redis \u5f00\u59cb\u4e8b\u52a1 multi \u547d\u4ee4\u540e\uff0cRedis \u4f1a\u4e3a\u8fd9\u4e2a\u4e8b\u52a1\u751f\u6210\u4e00\u4e2a\u961f\u5217\uff0c\u6bcf\u6b21\u64cd\u4f5c\u7684\u547d\u4ee4\u90fd\u4f1a\u6309\u7167\u987a\u5e8f\u63d2\u5165\u5230\u8fd9\u4e2a\u961f\u5217\u4e2d\u3002<\/p>\n<p>\u8fd9\u4e2a\u961f\u5217\u91cc\u9762\u7684\u547d\u4ee4\u4e0d\u4f1a\u88ab\u9a6c\u4e0a\u6267\u884c\uff0c\u76f4\u5230 exec \u547d\u4ee4\u63d0\u4ea4\u4e8b\u52a1\uff0c\u6240\u6709\u961f\u5217\u91cc\u9762\u7684\u547d\u4ee4\u4f1a\u88ab\u4e00\u6b21\u6027\uff0c\u5e76\u4e14\u6392\u4ed6\u7684\u8fdb\u884c\u6267\u884c\u3002<\/p>\n<\/p>\n<p>\u5bf9\u5e94\u5982\u4e0b\u56fe\uff1a<\/p>\n<\/p>\n<p>\u4ece\u4e0a\u9762\u7684\u4f8b\u5b50\u53ef\u4ee5\u770b\u51fa\uff0c\u5f53\u6267\u884c\u4e00\u4e2a\u6210\u529f\u7684\u4e8b\u52a1\uff0c\u4e8b\u52a1\u91cc\u9762\u7684\u547d\u4ee4\u90fd\u662f\u6309\u7167\u961f\u5217\u91cc\u9762\u987a\u5e8f\u7684\u5e76\u4e14\u6392\u4ed6\u7684\u6267\u884c\u3002<\/p>\n<p>\u4f46\u539f\u5b50\u6027\u53c8\u4e00\u4e2a\u7279\u70b9\u5c31\u662f\u8981\u4e48\u5168\u90e8\u6210\u529f\uff0c\u8981\u4e48\u5168\u90e8\u5931\u8d25\uff0c\u4e5f\u5c31\u662f\u6211\u4eec\u4f20\u7edf DB \u91cc\u9762\u8bf4\u7684\u56de\u6eda\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u6267\u884c\u4e00\u4e2a\u5931\u8d25\u7684\u4e8b\u52a1\uff1a<\/p>\n<\/p>\n<p>\u53ef\u4ee5\u53d1\u73b0\uff0c\u5c31\u7b97\u4e2d\u95f4\u51fa\u73b0\u4e86\u5931\u8d25\uff0cset abc x \u8fd9\u4e2a\u64cd\u4f5c\u4e5f\u5df2\u7ecf\u88ab\u6267\u884c\u4e86\uff0c\u5e76\u6ca1\u6709\u8fdb\u884c\u56de\u6eda\uff0c\u4ece\u4e25\u683c\u7684\u610f\u4e49\u4e0a\u6765\u8bf4 Redis \u5e76\u4e0d\u5177\u5907\u539f\u5b50\u6027\u3002<\/p>\n<p><strong>\u2461\u4e3a\u4f55 Redis \u4e0d\u652f\u6301\u56de\u6eda<\/strong><\/p>\n<p>\u8fd9\u4e2a\u5176\u5b9e\u8ddf Redis \u7684\u5b9a\u4f4d\u548c\u8bbe\u8ba1\u6709\u5173\u7cfb\uff0c\u5148\u770b\u770b\u4e3a\u4f55\u6211\u4eec\u7684 MySQL \u53ef\u4ee5\u652f\u6301\u56de\u6eda\uff0c\u8fd9\u4e2a\u8fd8\u662f\u8ddf\u5199 Log \u6709\u5173\u7cfb\uff0cRedis \u662f\u5b8c\u6210\u64cd\u4f5c\u4e4b\u540e\u624d\u4f1a\u8fdb\u884c AOF \u65e5\u5fd7\u8bb0\u5f55\uff0cAOF \u65e5\u5fd7\u7684\u5b9a\u4f4d\u53ea\u662f\u8bb0\u5f55\u64cd\u4f5c\u7684\u6307\u4ee4\u8bb0\u5f55\u3002<\/p>\n<p>\u800c MySQL \u6709\u5b8c\u5584\u7684 Redolog\uff0c\u5e76\u4e14\u662f\u5728\u4e8b\u52a1\u8fdb\u884c Commit \u4e4b\u524d\u5c31\u4f1a\u5199\u5b8c\u6210 Redolog\uff0cBinlog\uff1a<\/p>\n<\/p>\n<p>\u8981\u77e5\u9053 MySQL \u4e3a\u4e86\u80fd\u8fdb\u884c\u56de\u6eda\u662f\u82b1\u4e86\u4e0d\u5c11\u7684\u4ee3\u4ef7\uff0cRedis \u5e94\u7528\u7684\u573a\u666f\u66f4\u591a\u662f\u5bf9\u6297\u9ad8\u5e76\u53d1\u5177\u5907\u9ad8\u6027\u80fd\uff0c\u6240\u4ee5 Redis \u9009\u62e9\u66f4\u7b80\u5355\uff0c\u66f4\u5feb\u901f\u65e0\u56de\u6eda\u7684\u65b9\u5f0f\u5904\u7406\u4e8b\u52a1\u4e5f\u662f\u7b26\u5408\u573a\u666f\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u4e00\u81f4\u6027<\/span><\/strong><\/p>\n<p>\u4e8b\u52a1\u5177\u5907\u4e00\u81f4\u6027\u6307\u7684\u662f\uff0c\u5982\u679c\u6570\u636e\u5e93\u5728\u6267\u884c\u4e8b\u52a1\u4e4b\u524d\u662f\u4e00\u81f4\u7684\uff0c\u90a3\u4e48\u5728\u4e8b\u52a1\u6267\u884c\u4e4b\u540e\uff0c\u65e0\u8bba\u4e8b\u52a1\u662f\u5426\u6210\u529f\uff0c\u6570\u636e\u5e93\u4e5f\u5e94\u8be5\u662f\u4e00\u81f4\u7684\u3002<\/p>\n<p>\u4ece Redis \u6765\u8bf4\u53ef\u4ee5\u4ece 2 \u4e2a\u5c42\u9762\u770b\uff0c\u4e00\u4e2a\u662f\u6267\u884c\u9519\u8bef\u662f\u5426\u6709\u786e\u4fdd\u4e00\u81f4\u6027\uff0c\u53e6\u4e00\u4e2a\u662f\u5b95\u673a\u65f6\uff0cRedis \u662f\u5426\u6709\u786e\u4fdd\u4e00\u81f4\u6027\u7684\u673a\u5236\u3002<\/p>\n<p><strong>\u2460\u6267\u884c\u9519\u8bef\u662f\u5426\u6709\u786e\u4fdd\u4e00\u81f4\u6027<\/strong><\/p>\n<\/p>\n<p>\u4f9d\u7136\u53bb\u6267\u884c\u4e00\u4e2a\u9519\u8bef\u7684\u4e8b\u52a1\uff0c\u5728\u4e8b\u52a1\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\u4f1a\u8bc6\u522b\u51fa\u6765\u5e76\u8fdb\u884c\u9519\u8bef\u5904\u7406\uff0c\u8fd9\u4e9b\u9519\u8bef\u5e76\u4e0d\u4f1a\u5bf9\u6570\u636e\u5e93\u4f5c\u51fa\u4fee\u6539\uff0c\u4e5f\u4e0d\u4f1a\u5bf9\u4e8b\u52a1\u7684\u4e00\u81f4\u6027\u4ea7\u751f\u5f71\u54cd\u3002<\/p>\n<p><strong>\u2461\u5b95\u673a\u5bf9\u4e00\u81f4\u6027\u7684\u5f71\u54cd<\/strong><\/p>\n<p>\u6682\u4e0d\u8003\u8651\u5206\u5e03\u5f0f\u9ad8\u53ef\u7528\u7684 Redis \u89e3\u51b3\u65b9\u6848\uff0c\u5148\u4ece\u5355\u673a\u770b\u5b95\u673a\u6062\u590d\u662f\u5426\u80fd\u6ee1\u610f\u6570\u636e\u5b8c\u6574\u6027\u7ea6\u675f\u3002<\/p>\n<p>\u65e0\u8bba\u662f RDB \u8fd8\u662f AOF \u6301\u4e45\u5316\u65b9\u6848\uff0c\u53ef\u4ee5\u4f7f\u7528 RDB \u6587\u4ef6\u6216 AOF \u6587\u4ef6\u8fdb\u884c\u6062\u590d\u6570\u636e\uff0c\u4ece\u800c\u5c06\u6570\u636e\u5e93\u8fd8\u539f\u5230\u4e00\u4e2a\u4e00\u81f4\u7684\u72b6\u6001\u3002<\/p>\n<p><strong>\u2462\u518d\u8bae\u4e00\u81f4\u6027<\/strong><\/p>\n<p>\u4e0a\u9762\u6267\u884c\u9519\u8bef\u548c\u5b95\u673a\u5bf9\u4e00\u81f4\u6027\u7684\u5f71\u54cd\u7684\u89c2\u70b9\u6458\u81ea\u9ec4\u5065\u5b8f \u300aRedis \u8bbe\u8ba1\u4e0e\u5b9e\u73b0\u300b\u3002<\/p>\n<p>\u5f53\u5728\u8bfb\u8fd9\u7ae0\u7684\u65f6\u5019\u8fd8\u662f\u6709\u4e00\u4e9b\u5b58\u7591\u7684\u70b9\uff0c\u5f52\u6839\u5230\u5e95 Redis \u5e76\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93\u3002<\/p>\n<p>\u5982\u679c\u4ec5\u4ec5\u5c31 ACID \u7684\u8868\u8ff0\u4e0a\u6765\u8bf4\uff0c\u4e00\u81f4\u6027\u5c31\u662f\u4ece A \u72b6\u6001\u7ecf\u8fc7\u4e8b\u52a1\u5230\u8fbe B \u72b6\u6001\u6ca1\u6709\u7834\u574f\u5404\u79cd\u7ea6\u675f\u6027\uff0c\u4ec5\u5c31 Redis \u800c\u8a00\u4e0d\u8c08\u5b9e\u73b0\u7684\u4e1a\u52a1\uff0c\u90a3\u663e\u7136\u5c31\u662f\u6ee1\u610f\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u4f46\u5982\u679c\u52a0\u4e0a\u4e1a\u52a1\u53bb\u8c08\u4e00\u81f4\u6027\uff0c\u4f8b\u5982\uff0cA \u8f6c\u8d26\u7ed9 B\uff0cA \u51cf\u5c11 10 \u5757\u94b1\uff0cB \u589e\u52a0 10 \u5757\u94b1\uff0c\u56e0\u4e3a Redis \u5e76\u4e0d\u5177\u5907\u56de\u6eda\uff0c\u4e5f\u5c31\u4e0d\u5177\u5907\u4f20\u7edf\u610f\u4e49\u4e0a\u7684\u539f\u5b50\u6027\uff0c\u6240\u4ee5 Redis \u4e5f\u5e94\u8be5\u4e0d\u5177\u5907\u4f20\u7edf\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u5176\u5b9e\uff0c\u8fd9\u91cc\u53ea\u662f\u7b80\u5355\u8ba8\u8bba\u4e0b Redis \u5728\u4f20\u7edf ACID \u4e0a\u7684\u6982\u5ff5\u600e\u4e48\u8fdb\u884c\u5bf9\u63a5\uff0c\u6216\u8bb8\uff0c\u6709\u53ef\u80fd\u662f\u6211\u60f3\u591a\u4e86\uff0c\u7528\u4f20\u7edf\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684 ACID \u53bb\u5ba1\u6838 Redis \u662f\u6ca1\u6709\u610f\u4e49\u7684\uff0cRedis \u672c\u6765\u5c31\u6ca1\u6709\u610f\u613f\u53bb\u5b9e\u73b0 ACID \u7684\u4e8b\u52a1\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u9694\u79bb\u6027<\/span><\/strong><\/p>\n<p>\u9694\u79bb\u6027\u6307\u7684\u662f\uff0c\u6570\u636e\u5e93\u4e2d\u6709\u591a\u4e2a\u4e8b\u52a1\u5e76\u53d1\u7684\u6267\u884c\uff0c\u5404\u4e2a\u4e8b\u52a1\u4e4b\u95f4\u4e0d\u4f1a\u76f8\u4e92\u5f71\u54cd\uff0c\u5e76\u4e14\u5728\u5e76\u53d1\u72b6\u6001\u4e0b\u6267\u884c\u7684\u4e8b\u52a1\u548c\u4e32\u884c\u6267\u884c\u7684\u4e8b\u52a1\u4ea7\u751f\u7684\u7ed3\u679c\u662f\u5b8c\u5168\u76f8\u540c\u7684\u3002<\/p>\n<p>Redis \u56e0\u4e3a\u662f\u5355\u7ebf\u7a0b\u64cd\u4f5c\uff0c\u6240\u4ee5\u5728\u9694\u79bb\u6027\u4e0a\u6709\u5929\u751f\u7684\u9694\u79bb\u673a\u5236\uff0c\u5f53 Redis \u6267\u884c\u4e8b\u52a1\u65f6\uff0cRedis \u7684\u670d\u52a1\u7aef\u4fdd\u8bc1\u5728\u6267\u884c\u4e8b\u52a1\u671f\u95f4\u4e0d\u4f1a\u5bf9\u4e8b\u52a1\u8fdb\u884c\u4e2d\u65ad\uff0c\u6240\u4ee5\uff0cRedis \u4e8b\u52a1\u603b\u662f\u4ee5\u4e32\u884c\u7684\u65b9\u5f0f\u8fd0\u884c\uff0c\u4e8b\u52a1\u4e5f\u5177\u5907\u9694\u79bb\u6027\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u6301\u4e45\u6027<\/span><\/strong><\/p>\n<p>\u4e8b\u52a1\u7684\u6301\u4e45\u6027\u6307\u7684\u662f\uff0c\u5f53\u4e00\u4e2a\u4e8b\u52a1\u6267\u884c\u5b8c\u6bd5\uff0c\u6267\u884c\u8fd9\u4e2a\u4e8b\u52a1\u6240\u5f97\u5230\u7684\u7ed3\u679c\u88ab\u4fdd\u5b58\u5728\u6301\u4e45\u5316\u7684\u5b58\u50a8\u4e2d\uff0c\u5373\u4f7f\u670d\u52a1\u5668\u5728\u4e8b\u52a1\u6267\u884c\u5b8c\u6210\u540e\u505c\u673a\u4e86\uff0c\u6267\u884c\u7684\u4e8b\u52a1\u7684\u7ed3\u679c\u4e5f\u4e0d\u4f1a\u88ab\u4e22\u5931\u3002<\/p>\n<p>Redis \u662f\u5426\u5177\u5907\u6301\u4e45\u5316\uff0c\u8fd9\u4e2a\u53d6\u51b3\u4e8e Redis \u7684\u6301\u4e45\u5316\u6a21\u5f0f\uff1a<\/p>\n<ul>\n<li>\n<p>\u7eaf\u5185\u5b58\u8fd0\u884c\uff0c\u4e0d\u5177\u5907\u6301\u4e45\u5316\uff0c\u670d\u52a1\u4e00\u65e6\u505c\u673a\uff0c\u6240\u6709\u6570\u636e\u5c06\u4e22\u5931\u3002<\/p>\n<\/li>\n<li>\n<p>RDB \u6a21\u5f0f\uff0c\u53d6\u51b3\u4e8e RDB \u7b56\u7565\uff0c\u53ea\u6709\u5728\u6ee1\u8db3\u7b56\u7565\u624d\u4f1a\u6267\u884c Bgsave\uff0c\u5f02\u6b65\u6267\u884c\u5e76\u4e0d\u80fd\u4fdd\u8bc1 Redis \u5177\u5907\u6301\u4e45\u5316\u3002<\/p>\n<\/li>\n<li>\n<p>AOF \u6a21\u5f0f\uff0c\u53ea\u6709\u5c06 appendfsync \u8bbe\u7f6e\u4e3a always\uff0c\u7a0b\u5e8f\u624d\u4f1a\u5728\u6267\u884c\u547d\u4ee4\u540c\u6b65\u4fdd\u5b58\u5230\u78c1\u76d8\uff0c\u8fd9\u4e2a\u6a21\u5f0f\u4e0b\uff0cRedis \u5177\u5907\u6301\u4e45\u5316\u3002(\u5c06 appendfsync \u8bbe\u7f6e\u4e3a always\uff0c\u53ea\u662f\u5728\u7406\u8bba\u4e0a\u6301\u4e45\u5316\u53ef\u884c\uff0c\u4f46\u4e00\u822c\u4e0d\u4f1a\u8fd9\u4e48\u64cd\u4f5c)<\/p>\n<\/li>\n<\/ul>\n<p>\u7b80\u5355\u603b\u7ed3\uff1a<\/p>\n<ul>\n<li>\n<p>Redis \u5177\u5907\u4e86\u4e00\u5b9a\u7684\u539f\u5b50\u6027\uff0c\u4f46\u4e0d\u652f\u6301\u56de\u6eda\u3002<\/p>\n<\/li>\n<li>\n<p>Redis \u4e0d\u5177\u5907 ACID \u4e2d\u4e00\u81f4\u6027\u7684\u6982\u5ff5\u3002(\u6216\u8005\u8bf4 Redis \u5728\u8bbe\u8ba1\u65f6\u5c31\u65e0\u89c6\u8fd9\u70b9)<\/p>\n<\/li>\n<li>\n<p>Redis \u5177\u5907\u9694\u79bb\u6027\u3002<\/p>\n<\/li>\n<li>\n<p>Redis \u901a\u8fc7\u4e00\u5b9a\u7b56\u7565\u53ef\u4ee5\u4fdd\u8bc1\u6301\u4e45\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n<p>Redis \u548c ACID \u7eaf\u5c5e\u7ad9\u5728\u4f7f\u7528\u8005\u7684\u89d2\u5ea6\u53bb\u601d\u60f3\uff0cRedis \u8bbe\u8ba1\u66f4\u591a\u7684\u662f\u8ffd\u6c42\u7b80\u5355\u4e0e\u9ad8\u6027\u80fd\uff0c\u4e0d\u4f1a\u53d7\u5236\u4e8e\u4f20\u7edf ACID \u7684\u675f\u7f1a\u3002<\/p>\n<p><strong><span style=\"font-size: x-large\">Redis \u7684\u4e50\u89c2\u9501 Watch \u662f\u600e\u4e48\u5b9e\u73b0\u7684<\/span><\/strong><\/p>\n<p>\u5f53\u6211\u4eec\u4e00\u63d0\u5230\u4e50\u89c2\u9501\u5c31\u4f1a\u60f3\u8d77 CAS(Compare And Set)\uff0cCAS \u64cd\u4f5c\u5305\u542b\u4e09\u4e2a\u64cd\u4f5c\u6570\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u5185\u5b58\u4f4d\u7f6e\u7684\u503c(V)<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>\u9884\u671f\u539f\u503c(A)<\/strong><\/p>\n<\/li>\n<li>\n<p><strong>\u65b0\u503c(B)<\/strong><\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679c\u5185\u5b58\u4f4d\u7f6e\u7684\u503c\u4e0e\u9884\u671f\u539f\u503c\u76f8\u5339\u914d\uff0c\u90a3\u4e48\u5904\u7406\u5668\u4f1a\u81ea\u52a8\u5c06\u8be5\u4f4d\u7f6e\u66f4\u65b0\u4e3a\u65b0\u503c\u3002\u5426\u5219\uff0c\u5904\u7406\u5668\u4e0d\u505a\u4efb\u4f55\u64cd\u4f5c\u3002<\/p>\n<p>\u5728 Redis \u7684\u4e8b\u52a1\u4e2d\u4f7f\u7528 Watch \u5b9e\u73b0\uff0cWatch \u4f1a\u5728\u4e8b\u52a1\u5f00\u59cb\u4e4b\u524d\u76ef\u4f4f 1 \u4e2a\u6216\u591a\u4e2a\u5173\u952e\u53d8\u91cf\u3002<\/p>\n<p>\u5f53\u4e8b\u52a1\u6267\u884c\u65f6\uff0c\u4e5f\u5c31\u662f\u670d\u52a1\u5668\u6536\u5230\u4e86 exec \u6307\u4ee4\u8981\u987a\u5e8f\u6267\u884c\u7f13\u5b58\u7684\u4e8b\u52a1\u961f\u5217\u65f6\uff0c Redis \u4f1a\u68c0\u67e5\u5173\u952e\u53d8\u91cf\u81ea Watch \u4e4b\u540e\uff0c\u662f\u5426\u88ab\u4fee\u6539\u4e86\u3002<\/p>\n<\/p>\n<p><strong>\u2460Java \u7684 AtomicXXX \u7684\u4e50\u89c2\u9501\u673a\u5236<\/strong><\/p>\n<p>\u5728 Java \u4e2d\u6211\u4eec\u4e5f\u7ecf\u5e38\u7684\u4f7f\u7528\u5230\u4e00\u4e9b\u4e50\u89c2\u9501\u7684\u53c2\u6570\uff0c\u4f8b\u5982 AtomicXXX\uff0c\u8fd9\u4e9b\u673a\u5236\u7684\u80cc\u540e\u662f\u600e\u4e48\u53bb\u5b9e\u73b0\u7684\uff0c\u662f\u5426 Redis \u4e5f\u8ddf Java \u7684 CAS \u5b9e\u73b0\u673a\u5236\u4e00\u6837?<\/p>\n<p>\u5148\u6765\u770b\u770b Java \u7684 Atomic \u7c7b\uff0c\u6211\u4eec\u8ffd\u4e00\u4e0b\u6e90\u7801\uff0c\u53ef\u4ee5\u770b\u5230\u5b83\u7684\u80cc\u540e\u5176\u5b9e\u662f Unsafe_CompareAndSwapObject\uff1a<\/p>\n<\/p>\n<p>\u53ef\u4ee5\u770b\u89c1 compareAndSwapObject \u662f Native \u65b9\u6cd5\uff0c\u9700\u8981\u5728\u7ee7\u7eed\u8ffd\u67e5\uff0c\u53ef\u4ee5\u4e0b\u8f7d\u6e90\u7801\u6216\u6253\u5f00 \uff1ahttp:\/\/hg.openjdk.java.net\/jdk8u\/\u3002<\/p>\n<\/p>\n<\/p>\n<p><strong>\u2461Cmpxchg<\/strong><\/p>\n<p>\u53ef\u4ee5\u53d1\u73b0\u8ffd\u67e5\u5230\u6700\u7ec8 CAS\uff0c\u201c\u6bd4\u8f83\u5e76\u4fee\u6539\u201d\uff0c\u672c\u6765\u662f\u4e24\u4e2a\u8bed\u610f\uff0c\u4f46\u662f\u6700\u7ec8\u786e\u5b9e\u4e00\u6761 CPU \u6307\u4ee4 Cmpxchg \u5b8c\u6210\u3002<\/p>\n<p>Cmpxchg \u662f\u4e00\u6761 CPU \u6307\u4ee4\u7684\u547d\u4ee4\u800c\u4e0d\u662f\u591a\u6761 CPU \u6307\u4ee4\uff0c\u6240\u4ee5\u5b83\u4e0d\u4f1a\u88ab\u591a\u7ebf\u7a0b\u7684\u8c03\u5ea6\u6240\u6253\u65ad\uff0c\u6240\u4ee5\u80fd\u591f\u4fdd\u8bc1 CAS \u7684\u64cd\u4f5c\u662f\u4e00\u4e2a\u539f\u5b50\u64cd\u4f5c\u3002<\/p>\n<p>\u5f53\u7136 Cmpxchg \u7684\u673a\u5236\u5176\u5b9e\u5b58\u5728 ABA \u8fd8\u6709\u591a\u6b21\u91cd\u8bd5\u7684\u95ee\u9898\uff0c\u8fd9\u4e2a\u4e0d\u5728\u8fd9\u91cc\u8ba8\u8bba\u3002<\/p>\n<p><strong>\u2462Redis \u7684 Watch \u673a\u5236<\/strong><\/p>\n<p>Redis \u7684 Watch \u4e5f\u662f\u4f7f\u7528 Cmpxchg \u5417\uff0c\u4e24\u8005\u5b58\u5728\u76f8\u4f3c\u4e4b\u5904\u5728\u7528\u6cd5\u4e0a\u4e5f\u6709\u4e00\u4e9b\u4e0d\u540c\uff0cRedis \u7684 Watch \u4e0d\u5b58\u5728 ABA \u95ee\u9898\uff0c\u4e5f\u6ca1\u6709\u591a\u6b21\u91cd\u8bd5\u673a\u5236\uff0c\u5176\u4e2d\u6709\u4e00\u4e2a\u91cd\u5927\u7684\u4e0d\u540c\u662f\uff1aRedis \u4e8b\u52a1\u6267\u884c\u5176\u5b9e\u662f\u4e32\u884c\u7684\u3002<\/p>\n<p>\u7b80\u5355\u8ffd\u4e00\u4e0b\u6e90\u7801\uff1a\u6458\u5f55\u51fa\u6765\u7684\u6e90\u7801\u53ef\u80fd\u6709\u4e9b\u51cc\u4e71\uff0c\u4e0d\u8fc7\u53ef\u4ee5\u7b80\u5355\u603b\u7ed3\u51fa\u6765\u6570\u636e\u7ed3\u6784\u56fe\u548c\u7b80\u5355\u7684\u6d41\u7a0b\u56fe\uff0c\u4e4b\u540e\u518d\u770b\u6e90\u7801\u5c31\u4f1a\u6e05\u6670\u5f88\u591a\u3002<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<p>\u5b58\u50a8\u5982\u4e0b\u56fe\uff1a<\/p>\n<\/p>\n<p>RedisDb \u5b58\u653e\u4e86\u4e00\u4e2a watched_keys \u7684 Dcit \u7ed3\u6784\uff0c\u6bcf\u4e2a\u88ab Watch \u7684 Key \u7684\u503c\u662f\u4e00\u4e2a\u94fe\u8868\u7ed3\u6784\uff0c\u5b58\u653e\u7684\u662f\u4e00\u7ec4 Redis \u5ba2\u6237\u7aef\u6807\u5fd7\u3002<\/p>\n<p>\u6d41\u7a0b\u5982\u4e0b\u56fe\uff1a<\/p>\n<\/p>\n<p>\u6bcf\u4e00\u6b21 Watch\uff0cMulti\uff0cExec \u65f6\u90fd\u4f1a\u53bb\u67e5\u8be2\u8fd9\u4e2a watched_keys \u7ed3\u6784\u8fdb\u884c\u5224\u65ad\uff0c\u6bcf\u6b21 Touch \u5230\u88ab Watch \u7684 Key \u65f6\u90fd\u4f1a\u6807\u5fd7\u4e3a CLIENT_DIRTY_CAS\u3002<\/p>\n<p>\u56e0\u4e3a\u5728 Redis \u4e2d\u6240\u6709\u7684\u4e8b\u52a1\u90fd\u662f\u4e32\u884c\u7684\uff0c\u5047\u8bbe\u6709\u5ba2\u6237\u7aef A \u548c\u5ba2\u6237\u7aef B \u90fd Watch \u540c\u4e00\u4e2a Key\u3002<\/p>\n<p>\u5f53\u5ba2\u6237\u7aef A \u8fdb\u884c Touch \u4fee\u6539\u6216\u8005 A \u7387\u5148\u6267\u884c\u5b8c\uff0c\u4f1a\u628a\u5ba2\u6237\u7aef A \u4ece\u8fd9\u4e2a watched_keys \u7684\u8fd9\u4e2a Key \u7684\u5217\u8868\u5220\u9664\uff0c\u7136\u540e\u628a\u8fd9\u4e2a\u5217\u8868\u6240\u6709\u7684\u5ba2\u6237\u7aef\u90fd\u8bbe\u7f6e\u6210 CLIENT_DIRTY_CAS\u3002<\/p>\n<p>\u5f53\u540e\u9762\u7684\u5ba2\u6237\u7aef B \u5f00\u59cb\u6267\u884c\u65f6\uff0c\u5224\u65ad\u5230\u81ea\u5df1\u7684\u72b6\u6001\u662f CLIENT_DIRTY_CAS\uff0c\u4fbf discardTransaction \u7ec8\u6b62\u4e8b\u52a1\u3002<\/p>\n<p>\u7b80\u5355\u603b\u7ed3\uff1aCmpxchg \u7684\u5b9e\u73b0\u4e3b\u8981\u662f\u5229\u7528\u4e86 CPU \u6307\u4ee4\uff0c\u770b\u4f3c\u4e24\u4e2a\u64cd\u4f5c\u4f7f\u7528\u4e00\u6761 CPU \u6307\u4ee4\u5b8c\u6210\uff0c\u6240\u4ee5\u4e0d\u4f1a\u88ab\u591a\u7ebf\u7a0b\u8fdb\u884c\u6253\u65ad\u3002<\/p>\n<p>\u800c Redis \u7684 Watch \u673a\u5236\uff0c\u66f4\u591a\u662f\u5229\u7528\u4e86 Redis \u672c\u8eab\u5355\u7ebf\u7a0b\u7684\u673a\u5236\uff0c\u91c7\u7528\u4e86 watched_keys \u7684\u6570\u636e\u7ed3\u6784\u548c\u4e32\u884c\u6d41\u7a0b\u5b9e\u73b0\u4e86\u4e50\u89c2\u9501\u673a\u5236\u3002<\/p>\n<p><strong><span style=\"font-size: x-large\">Redis \u662f\u5982\u4f55\u6301\u4e45\u5316\u7684<\/span><\/strong><\/p>\n<\/p>\n<p>Redis \u7684\u6301\u4e45\u5316\u6709\u4e24\u79cd\u673a\u5236\uff0c\u4e00\u4e2a\u662f RDB\uff0c\u4e5f\u5c31\u662f\u5feb\u7167\uff0c\u5feb\u7167\u5c31\u662f\u4e00\u6b21\u5168\u91cf\u7684\u5907\u4efd\uff0c\u4f1a\u628a\u6240\u6709 Redis \u7684\u5185\u5b58\u6570\u636e\u8fdb\u884c\u4e8c\u8fdb\u5236\u7684\u5e8f\u5217\u5316\u5b58\u50a8\u5230\u78c1\u76d8\u3002<\/p>\n<p>\u53e6\u4e00\u79cd\u662f AOF \u65e5\u5fd7\uff0cAOF \u65e5\u5fd7\u8bb0\u5f55\u7684\u662f\u6570\u636e\u64cd\u4f5c\u4fee\u6539\u7684\u6307\u4ee4\u8bb0\u5f55\u65e5\u5fd7\uff0c\u53ef\u4ee5\u7c7b\u6bd4 MySQL \u7684 Binlog\uff0cAOF \u65e5\u671f\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u53ea\u4f1a***\u589e\u91cf\u3002<\/p>\n<p>\u5728\u5bf9 Redis \u8fdb\u884c\u6062\u590d\u65f6\uff0cRDB \u5feb\u7167\u76f4\u63a5\u8bfb\u53d6\u78c1\u76d8\u5373\u53ef\u6062\u590d\uff0c\u800c AOF \u9700\u8981\u5bf9\u6240\u6709\u7684\u64cd\u4f5c\u6307\u4ee4\u8fdb\u884c\u91cd\u653e\u8fdb\u884c\u6062\u590d\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u6709\u53ef\u80fd\u975e\u5e38\u6f2b\u957f\u3002<\/p>\n<\/p>\n<p><strong><span style=\"font-size: large\">RDB<\/span><\/strong><\/p>\n<p>Redis \u5728\u8fdb\u884c RDB \u7684\u5feb\u7167\u751f\u6210\u6709\u4e24\u79cd\u65b9\u6cd5\uff0c\u4e00\u79cd\u662f Save\uff0c\u7531\u4e8e Redis \u662f\u5355\u8fdb\u7a0b\u5355\u7ebf\u7a0b\uff0c\u76f4\u63a5\u4f7f\u7528 Save\uff0cRedis \u4f1a\u8fdb\u884c\u4e00\u4e2a\u5e9e\u5927\u7684\u6587\u4ef6 IO \u64cd\u4f5c\u3002<\/p>\n<p>\u7531\u4e8e\u5355\u8fdb\u7a0b\u5355\u7ebf\u7a0b\u52bf\u5fc5\u4f1a\u963b\u585e\u7ebf\u4e0a\u7684\u4e1a\u52a1\uff0c\u4e00\u822c\u7684\u8bdd\u4e0d\u4f1a\u76f4\u63a5\u91c7\u7528 Save\uff0c\u800c\u662f\u91c7\u7528 Bgsave\uff0c\u4e4b\u524d\u4e00\u76f4\u8bf4 Redis \u662f\u5355\u8fdb\u7a0b\u5355\u7ebf\u7a0b\uff0c\u5176\u5b9e\u4e0d\u7136\u3002<\/p>\n<p>\u5728\u4f7f\u7528 Bgsave \u7684\u65f6\u5019\uff0cRedis \u4f1a Fork \u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u5feb\u7167\u7684\u6301\u4e45\u5316\u5c31\u4ea4\u7ed9\u5b50\u8fdb\u7a0b\u53bb\u5904\u7406\uff0c\u800c\u7236\u8fdb\u7a0b\u7ee7\u7eed\u5904\u7406\u7ebf\u4e0a\u4e1a\u52a1\u7684\u8bf7\u6c42\u3002<\/p>\n<p><strong>\u2460Fork \u673a\u5236<\/strong><\/p>\n<p>\u60f3\u8981\u5f04\u6e05\u695a RDB \u5feb\u7167\u7684\u751f\u6210\u539f\u7406\u5c31\u5fc5\u987b\u5f04\u6e05\u695a Fork \u673a\u5236\uff0cFork \u673a\u5236\u662f Linux \u64cd\u4f5c\u7cfb\u7edf\u7684\u4e00\u4e2a\u8fdb\u7a0b\u673a\u5236\u3002<\/p>\n<p>\u5f53\u7236\u8fdb\u7a0b Fork \u51fa\u6765\u4e00\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u5b50\u8fdb\u7a0b\u548c\u7236\u8fdb\u7a0b\u62e5\u6709\u5171\u540c\u7684\u5185\u5b58\u6570\u636e\u7ed3\u6784\uff0c\u5b50\u8fdb\u7a0b\u521a\u521a\u4ea7\u751f\u65f6\uff0c\u5b83\u548c\u7236\u8fdb\u7a0b\u5171\u4eab\u5185\u5b58\u91cc\u9762\u7684\u4ee3\u7801\u6bb5\u548c\u6570\u636e\u6bb5\u3002<\/p>\n<\/p>\n<p>\u4e00\u5f00\u59cb\u4e24\u4e2a\u8fdb\u7a0b\u90fd\u5177\u5907\u4e86\u76f8\u540c\u7684\u5185\u5b58\u6bb5\uff0c\u5b50\u8fdb\u7a0b\u5728\u505a\u6570\u636e\u6301\u4e45\u5316\u65f6\uff0c\u4e0d\u4f1a\u53bb\u4fee\u6539\u73b0\u5728\u7684\u5185\u5b58\u6570\u636e\uff0c\u800c\u662f\u4f1a\u91c7\u7528 COW(Copy On Write)\u7684\u65b9\u5f0f\u5c06\u6570\u636e\u6bb5\u9875\u9762\u8fdb\u884c\u5206\u79bb\u3002<\/p>\n<p>\u5f53\u7236\u8fdb\u7a0b\u4fee\u6539\u4e86\u67d0\u4e00\u4e2a\u6570\u636e\u6bb5\u65f6\uff0c\u88ab\u5171\u4eab\u7684\u9875\u9762\u5c31\u4f1a\u590d\u5236\u4e00\u4efd\u5206\u79bb\u51fa\u6765\uff0c\u7136\u540e\u7236\u8fdb\u7a0b\u518d\u5728\u65b0\u7684\u6570\u636e\u6bb5\u8fdb\u884c\u4fee\u6539\u3002<\/p>\n<\/p>\n<p><strong>\u2461\u5206\u88c2<\/strong><\/p>\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u4e5f\u6210\u4e3a\u5206\u88c2\u7684\u8fc7\u7a0b\uff0c\u672c\u6765\u7236\u5b50\u8fdb\u7a0b\u90fd\u6307\u5411\u5f88\u591a\u76f8\u540c\u7684\u5185\u5b58\u5757\uff0c\u4f46\u662f\u5982\u679c\u7236\u8fdb\u7a0b\u5bf9\u5176\u4e2d\u67d0\u4e2a\u5185\u5b58\u5757\u8fdb\u884c\u8be5\u4fee\u6539\uff0c\u5c31\u4f1a\u5c06\u5176\u590d\u5236\u51fa\u6765\uff0c\u8fdb\u884c\u5206\u88c2\u518d\u5728\u65b0\u7684\u5185\u5b58\u5757\u4e0a\u9762\u8fdb\u884c\u4fee\u6539\u3002<\/p>\n<p>\u56e0\u4e3a\u5b50\u8fdb\u7a0b\u5728 Fork \u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u56fa\u5b9a\u5185\u5b58\uff0c\u8fd9\u4e2a\u65f6\u95f4\u70b9\u7684\u6570\u636e\u5c06\u4e0d\u4f1a\u4ea7\u751f\u53d8\u5316\u3002<\/p>\n<p>\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5b89\u5fc3\u7684\u4ea7\u751f\u5feb\u7167\u4e0d\u7528\u62c5\u5fc3\u5feb\u7167\u7684\u5185\u5bb9\u53d7\u5230\u7236\u8fdb\u7a0b\u4e1a\u52a1\u8bf7\u6c42\u7684\u5f71\u54cd\u3002<\/p>\n<p>\u53e6\u5916\u53ef\u4ee5\u60f3\u8c61\uff0c\u5982\u679c\u5728 Bgsave \u7684\u8fc7\u7a0b\u4e2d\uff0cRedis \u6ca1\u6709\u4efb\u4f55\u64cd\u4f5c\uff0c\u7236\u8fdb\u7a0b\u6ca1\u6709\u63a5\u6536\u5230\u4efb\u4f55\u4e1a\u52a1\u8bf7\u6c42\u4e5f\u6ca1\u6709\u4efb\u4f55\u7684\u80cc\u540e\u4f8b\u5982\u8fc7\u671f\u79fb\u9664\u7b49\u64cd\u4f5c\uff0c\u7236\u8fdb\u7a0b\u548c\u5b50\u8fdb\u7a0b\u5c06\u4f1a\u4f7f\u7528\u76f8\u540c\u7684\u5185\u5b58\u5757\u3002<\/p>\n<p><strong><span style=\"font-size: large\">AOF<\/span><\/strong><\/p>\n<p>AOF \u662f Redis \u64cd\u4f5c\u6307\u4ee4\u7684\u65e5\u5fd7\u5b58\u50a8\uff0c\u7c7b\u540c\u4e8e MySQL \u7684 Binlog\uff0c\u5047\u8bbe AOF \u4ece Redis \u521b\u5efa\u4ee5\u6765\u5c31\u4e00\u76f4\u6267\u884c\uff0c\u90a3\u4e48 AOF \u5c31\u8bb0\u5f55\u4e86\u6240\u6709\u7684 Redis \u6307\u4ee4\u7684\u8bb0\u5f55\u3002<\/p>\n<p>\u5982\u679c\u8981\u6062\u590d Redis\uff0c\u53ef\u4ee5\u5bf9 AOF \u8fdb\u884c\u6307\u4ee4\u91cd\u653e\uff0c\u4fbf\u53ef\u4fee\u590d\u6574\u4e2a Redis \u5b9e\u4f8b\u3002<\/p>\n<p>\u4e0d\u8fc7 AOF \u65e5\u5fd7\u4e5f\u6709\u4e24\u4e2a\u6bd4\u8f83\u5927\u7684\u95ee\u9898\uff1a<\/p>\n<ul>\n<li>\n<p>\u4e00\u4e2a\u662f AOF \u7684\u65e5\u5fd7\u4f1a\u968f\u7740\u65f6\u95f4\u9012\u589e\uff0c\u5982\u679c\u4e00\u4e2a\u6570\u636e\u91cf\u5927\u8fd0\u884c\u7684\u65f6\u95f4\u4e45\uff0cAOF \u65e5\u5fd7\u91cf\u5c06\u53d8\u5f97\u5f02\u5e38\u5e9e\u5927\u3002<\/p>\n<\/li>\n<li>\n<p>\u53e6\u4e00\u4e2a\u95ee\u9898\u662f AOF \u5728\u505a\u6570\u636e\u6062\u590d\u65f6\uff0c\u7531\u4e8e\u91cd\u653e\u7684\u91cf\u975e\u5e38\u5e9e\u5927\uff0c\u6062\u590d\u7684\u65f6\u95f4\u5c06\u4f1a\u975e\u5e38\u7684\u957f\u3002<\/p>\n<\/li>\n<\/ul>\n<p>AOF \u5199\u64cd\u4f5c\u662f\u5728 Redis \u5904\u7406\u5b8c\u4e1a\u52a1\u903b\u8f91\u4e4b\u540e\uff0c\u6309\u7167\u4e00\u5b9a\u7684\u7b56\u7565\u624d\u4f1a\u8fdb\u884c\u4e9b AOF \u65e5\u5fd7\u5b58\u76d8\uff0c\u8fd9\u70b9\u8ddf MySQL \u7684 Redolog \u548c Binlog \u6709\u5f88\u5927\u7684\u4e0d\u540c\u3002<\/p>\n<p>\u4e5f\u56e0\u4e3a\u6b64\u539f\u56e0\uff0cRedis \u56e0\u4e3a\u5904\u7406\u903b\u8f91\u5728\u524d\u800c\u8bb0\u5f55\u64cd\u4f5c\u65e5\u5fd7\u5728\u540e\uff0c\u4e5f\u662f\u5bfc\u81f4 Redis \u65e0\u6cd5\u8fdb\u884c\u56de\u6eda\u7684\u4e00\u4e2a\u539f\u56e0\u3002<\/p>\n<p>bgrewriteaof\uff1a\u9488\u5bf9\u4e0a\u8ff0\u7684\u95ee\u9898\uff0cRedis \u5728 2.4 \u4e4b\u540e\u4e5f\u4f7f\u7528\u4e86 bgrewriteaof \u5bf9 AOF \u65e5\u5fd7\u8fdb\u884c\u7626\u8eab\u3002<\/p>\n<p>bgrewriteaof \u547d\u4ee4\u7528\u4e8e\u5f02\u6b65\u6267\u884c\u4e00\u4e2a AOF \u6587\u4ef6\u91cd\u5199\u64cd\u4f5c\u3002\u91cd\u5199\u4f1a\u521b\u5efa\u4e00\u4e2a\u5f53\u524d AOF \u6587\u4ef6\u7684\u4f53\u79ef\u4f18\u5316\u7248\u672c\u3002<\/p>\n<p><strong><span style=\"font-size: large\">RDB \u548c AOF \u6df7\u5408\u642d\u914d\u6a21\u5f0f<\/span><\/strong><\/p>\n<p>\u5728\u5bf9 Redis \u8fdb\u884c\u6062\u590d\u7684\u65f6\u5019\uff0c\u5982\u679c\u6211\u4eec\u91c7\u7528\u4e86 RDB \u7684\u65b9\u5f0f\uff0c\u56e0\u4e3a Bgsave \u7684\u7b56\u7565\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6211\u4eec\u4e22\u5931\u5927\u91cf\u7684\u6570\u636e\u3002<\/p>\n<p>\u5982\u679c\u6211\u4eec\u91c7\u7528\u4e86 AOF \u7684\u6a21\u5f0f\uff0c\u901a\u8fc7 AOF \u64cd\u4f5c\u65e5\u5fd7\u91cd\u653e\u6062\u590d\uff0c\u91cd\u653e AOF \u65e5\u5fd7\u6bd4 RDB \u8981\u957f\u4e45\u5f88\u591a\u3002<\/p>\n<\/p>\n<p>Redis 4.0 \u4e4b\u540e\uff0c\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5f15\u5165\u4e86\u65b0\u7684\u6301\u4e45\u5316\u6a21\u5f0f\uff0c\u6df7\u5408\u6301\u4e45\u5316\uff0c\u5c06 RDB \u7684\u6587\u4ef6\u548c\u5c40\u90e8\u589e\u91cf\u7684 AOF \u6587\u4ef6\u76f8\u7ed3\u5408\u3002<\/p>\n<p>RDB \u53ef\u4ee5\u4f7f\u7528\u76f8\u9694\u8f83\u957f\u7684\u65f6\u95f4\u4fdd\u5b58\u7b56\u7565\uff0cAOF \u4e0d\u9700\u8981\u662f\u5168\u91cf\u65e5\u5fd7\uff0c\u53ea\u9700\u8981\u4fdd\u5b58\u524d\u4e00\u6b21 RDB \u5b58\u50a8\u5f00\u59cb\u5230\u8fd9\u6bb5\u65f6\u95f4\u589e\u91cf AOF \u65e5\u5fd7\u5373\u53ef\uff0c\u4e00\u822c\u6765\u8bf4\uff0c\u8fd9\u4e2a\u65e5\u5fd7\u91cf\u662f\u975e\u5e38\u5c0f\u7684\u3002<\/p>\n<p><strong><span style=\"font-size: x-large\">Redis \u5728\u5185\u5b58\u4f7f\u7528\u4e0a\u662f\u5982\u4f55\u5f00\u6e90\u8282\u6d41<\/span><\/strong><\/p>\n<\/p>\n<p>Redis \u8ddf\u5176\u4ed6\u4f20\u7edf\u6570\u636e\u5e93\u4e0d\u540c\uff0cRedis \u662f\u4e00\u4e2a\u7eaf\u5185\u5b58\u7684\u6570\u636e\u5e93\uff0c\u5e76\u4e14\u5b58\u50a8\u4e86\u90fd\u662f\u4e00\u4e9b\u6570\u636e\u7ed3\u6784\u7684\u6570\u636e\uff0c\u5982\u679c\u4e0d\u5bf9\u5185\u5b58\u52a0\u4ee5\u63a7\u5236\u7684\u8bdd\uff0cRedis \u5f88\u53ef\u80fd\u4f1a\u56e0\u4e3a\u6570\u636e\u91cf\u8fc7\u5927\u5bfc\u81f4\u7cfb\u7edf\u7684\u5954\u6e83\u3002<\/p>\n<p><strong><span style=\"font-size: large\">Ziplist<\/span><\/strong><\/p>\n<\/p>\n<pre>127.0.0.1:6379&gt;&nbsp;hset&nbsp;hash_test&nbsp;abc&nbsp;1&nbsp;\r\n(integer)&nbsp;1&nbsp;\r\n127.0.0.1:6379&gt;&nbsp;object&nbsp;encoding&nbsp;hash_test&nbsp;\r\n\"ziplist\"&nbsp;\r\n127.0.0.1:6379&gt;&nbsp;zadd&nbsp;z_test&nbsp;10&nbsp;key&nbsp;\r\n(integer)&nbsp;1&nbsp;\r\n127.0.0.1:6379&gt;&nbsp;object&nbsp;encoding&nbsp;z_test&nbsp;\r\n\"ziplist\"<\/pre>\n<\/p>\n<p>\u5f53\u6700\u5f00\u59cb\u5c1d\u8bd5\u5f00\u542f\u4e00\u4e2a\u5c0f\u6570\u636e\u91cf\u7684 Hash \u7ed3\u6784\u548c\u4e00\u4e2a Zset \u7ed3\u6784\u65f6\uff0c\u53d1\u73b0\u4ed6\u4eec\u5728 Redis \u91cc\u9762\u7684\u771f\u6b63\u7ed3\u6784\u7c7b\u578b\u662f\u4e00\u4e2a Ziplist\u3002<\/p>\n<p>Ziplist \u662f\u4e00\u4e2a\u7d27\u51d1\u7684\u6570\u636e\u7ed3\u6784\uff0c\u6bcf\u4e00\u4e2a\u5143\u7d20\u4e4b\u95f4\u90fd\u662f\u8fde\u7eed\u7684\u5185\u5b58\uff0c\u5982\u679c\u5728 Redis \u4e2d\uff0cRedis \u542f\u7528\u7684\u6570\u636e\u7ed3\u6784\u6570\u636e\u91cf\u5f88\u5c0f\u65f6\uff0cRedis \u5c31\u4f1a\u5207\u6362\u5230\u4f7f\u7528\u7d27\u51d1\u5b58\u50a8\u7684\u5f62\u5f0f\u6765\u8fdb\u884c\u538b\u7f29\u5b58\u50a8\u3002<\/p>\n<\/p>\n<p>\u4f8b\u5982\uff0c\u4e0a\u9762\u7684\u4f8b\u5b50\uff0c\u6211\u4eec\u91c7\u7528\u4e86 Hash \u7ed3\u6784\u8fdb\u884c\u5b58\u50a8\uff0cHash \u7ed3\u6784\u662f\u4e00\u4e2a\u4e8c\u7ef4\u7684\u7ed3\u6784\uff0c\u662f\u4e00\u4e2a\u5178\u578b\u7684\u7528\u7a7a\u95f4\u6362\u53d6\u65f6\u95f4\u7684\u7ed3\u6784\u3002<\/p>\n<p>\u4f46\u662f\u5982\u679c\u4f7f\u7528\u7684\u6570\u636e\u91cf\u5f88\u5c0f\uff0c\u4f7f\u7528\u4e8c\u7ef4\u7ed3\u6784\u53cd\u800c\u6d6a\u8d39\u4e86\u7a7a\u95f4\uff0c\u5728\u65f6\u95f4\u7684\u6027\u80fd\u4e0a\u4e5f\u5e76\u6ca1\u6709\u5f97\u5230\u592a\u5927\u7684\u63d0\u5347\uff0c\u8fd8\u4e0d\u5982\u76f4\u63a5\u4f7f\u7528\u4e00\u7ef4\u7ed3\u6784\u8fdb\u884c\u5b58\u50a8\u3002<\/p>\n<p>\u5728\u67e5\u627e\u7684\u65f6\u5019\uff0c\u867d\u7136\u590d\u6742\u5ea6\u662f O(n)\uff0c\u4f46\u662f\u56e0\u4e3a\u6570\u636e\u91cf\u5c11\u904d\u5386\u4e5f\u975e\u5e38\u5feb\uff0c\u589e\u81f3\u6bd4 Hash \u7ed3\u6784\u672c\u8eab\u7684\u67e5\u8be2\u66f4\u5feb\u3002<\/p>\n<p>\u5982\u679c\u5f53\u96c6\u5408\u5bf9\u8c61\u7684\u5143\u7d20\u4e0d\u65ad\u7684\u589e\u52a0\uff0c\u6216\u8005\u67d0\u4e2a Value \u7684\u503c\u8fc7\u5927\uff0c\u8fd9\u79cd\u5c0f\u5bf9\u8c61\u5b58\u50a8\u4e5f\u4f1a\u5347\u7ea7\u751f\u6210\u6807\u51c6\u7684\u7ed3\u6784\u3002<\/p>\n<p>Redis \u4e5f\u53ef\u4ee5\u5728\u914d\u7f6e\u4e2d\u8fdb\u884c\u5b9a\u4e49\u7d27\u51d1\u7ed3\u6784\u548c\u6807\u51c6\u7ed3\u6784\u7684\u8f6c\u6362\u53c2\u6570\uff1a<\/p>\n<\/p>\n<pre>hash-max-ziplist-entries&nbsp;512&nbsp;&nbsp;#&nbsp;hash\u7684\u5143\u7d20\u4e2a\u6570\u8d85\u8fc7512\u5c31\u5fc5\u987b\u7528\u6807\u51c6\u7ed3\u6784\u5b58\u50a8&nbsp;\r\nhash-max-ziplist-value&nbsp;64&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;#&nbsp;hash\u7684\u4efb\u610f\u5143\u7d20\u7684key\/value\u7684\u957f\u5ea6\u8d85\u8fc7&nbsp;64&nbsp;\u5c31\u5fc5\u987b\u7528\u6807\u51c6\u7ed3\u6784\u5b58\u50a8&nbsp;\r\nlist-max-ziplist-entries&nbsp;512&nbsp;&nbsp;&nbsp;\r\nlist-max-ziplist-value&nbsp;64&nbsp;&nbsp;&nbsp;\r\nzset-max-ziplist-entries&nbsp;128&nbsp;&nbsp;\r\nzset-max-ziplist-value&nbsp;64&nbsp;&nbsp;&nbsp;\r\nset-max-intset-entries&nbsp;512<\/pre>\n<\/p>\n<p><strong><span style=\"font-size: large\">Quicklist<\/span><\/strong><\/p>\n<\/p>\n<pre>127.0.0.1:6379&gt;&nbsp;rpush&nbsp;key&nbsp;v1&nbsp;\r\n(integer)&nbsp;1&nbsp;\r\n127.0.0.1:6379&gt;&nbsp;object&nbsp;encoding&nbsp;key&nbsp;\r\n\"quicklist\"<\/pre>\n<\/p>\n<p>Quicklist \u6570\u636e\u7ed3\u6784\u662f Redis \u5728 3.2 \u624d\u5f15\u5165\u7684\u4e00\u4e2a\u53cc\u5411\u94fe\u8868\u7684\u6570\u636e\u7ed3\u6784\uff0c\u786e\u5b9e\u6765\u8bf4\u662f\u4e00\u4e2a Ziplist \u7684\u53cc\u5411\u94fe\u8868\u3002<\/p>\n<p>Quicklist \u7684\u6bcf\u4e00\u4e2a\u6570\u636e\u8282\u70b9\u662f\u4e00\u4e2a Ziplist\uff0cZiplist \u672c\u8eab\u5c31\u662f\u4e00\u4e2a\u7d27\u51d1\u5217\u8868\u3002<\/p>\n<p>\u5047\u4f7f\uff0cQuicklist \u5305\u542b\u4e86 5 \u4e2a Ziplist \u7684\u8282\u70b9\uff0c\u6bcf\u4e2a Ziplist \u5217\u8868\u53c8\u5305\u542b\u4e86 5 \u4e2a\u6570\u636e\uff0c\u90a3\u4e48\u5728\u5916\u90e8\u770b\u6765\uff0c\u8fd9\u4e2a Quicklist \u5c31\u5305\u542b\u4e86 25 \u4e2a\u6570\u636e\u9879\u3002<\/p>\n<\/p>\n<p>Quicklist \u7684\u7ed3\u6784\u8bbe\u8ba1\u7b80\u5355\u603b\u7ed3\u8d77\u6765\uff0c\u662f\u4e00\u4e2a\u7a7a\u95f4\u548c\u65f6\u95f4\u7684\u6298\u4e2d\u65b9\u6848\uff1a<\/p>\n<ul>\n<li>\n<p>\u53cc\u5411\u94fe\u8868\u53ef\u4ee5\u5728\u4e24\u7aef\u8fdb\u884c Push \u548c Pop \u64cd\u4f5c\uff0c\u4f46\u662f\u5b83\u5728\u6bcf\u4e00\u4e2a\u8282\u70b9\u9664\u4e86\u4fdd\u5b58\u81ea\u8eab\u7684\u6570\u636e\u5916\uff0c\u8fd8\u8981\u4fdd\u5b58\u4e24\u4e2a\u6307\u9488\uff0c\u589e\u52a0\u989d\u5916\u7684\u5185\u5b58\u5f00\u9500\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5176\u6b21\u662f\u7531\u4e8e\u6bcf\u4e2a\u8282\u70b9\u90fd\u662f\u72ec\u7acb\u7684\uff0c\u5728\u5185\u5b58\u5730\u5740\u4e0a\u5e76\u4e0d\u8fde\u7eed\uff0c\u8282\u70b9\u591a\u4e86\u5bb9\u6613\u4ea7\u751f\u5185\u5b58\u788e\u7247\u3002<\/p>\n<ul>\n<li>\n<p>Ziplist \u672c\u8eab\u662f\u4e00\u5757\u8fde\u7eed\u7684\u5185\u5b58\uff0c\u5b58\u50a8\u548c\u67e5\u8be2\u6548\u7387\u5f88\u9ad8\uff0c\u4f46\u662f\uff0c\u5b83\u4e0d\u5229\u4e8e\u4fee\u6539\u64cd\u4f5c\uff0c\u6bcf\u6b21\u6570\u636e\u53d8\u52a8\u65f6\u90fd\u4f1a\u5f15\u53d1\u5185\u5b58 Realloc\uff0c\u5982\u679c Ziplist \u957f\u5ea6\u5f88\u957f\u65f6\uff0c\u4e00\u6b21 Realloc \u4f1a\u5bfc\u81f4\u5927\u6279\u91cf\u6570\u636e\u62f7\u8d1d\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u6240\u4ee5\uff0c\u7ed3\u5408 Ziplist \u548c\u53cc\u5411\u94fe\u8868\u7684\u4f18\u70b9\uff0cQuciklist \u5c31\u5b55\u80b2\u800c\u751f\u3002<\/p>\n<p><strong><span style=\"font-size: large\">\u5bf9\u8c61\u5171\u4eab<\/span><\/strong><\/p>\n<p>Redis \u5728\u81ea\u5df1\u7684\u5bf9\u8c61\u7cfb\u7edf\u4e2d\u6784\u5efa\u4e86\u4e00\u4e2a\u5f15\u7528\u8ba1\u6570\u65b9\u6cd5\uff0c\u901a\u8fc7\u8fd9\u4e2a\u65b9\u6cd5\u7a0b\u5e8f\u53ef\u4ee5\u8ddf\u8e2a\u5bf9\u8c61\u7684\u5f15\u7528\u8ba1\u6570\u4fe1\u606f\uff0c\u9664\u4e86\u53ef\u4ee5\u5728\u9002\u5f53\u7684\u65f6\u5019\u8fdb\u884c\u5bf9\u8c61\u91ca\u653e\uff0c\u8fd8\u53ef\u4ee5\u7528\u6765\u4f5c\u4e3a\u5bf9\u8c61\u5171\u4eab\u3002<\/p>\n<p>\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5047\u4f7f\u952e A \u521b\u5efa\u4e86\u4e00\u4e2a\u6574\u6570\u503c 100 \u7684\u5b57\u7b26\u4e32\u4f5c\u4e3a\u503c\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u65f6\u5019\u952e B \u4e5f\u521b\u5efa\u4fdd\u5b58\u540c\u6837\u6574\u6570\u503c 100 \u7684\u5b57\u7b26\u4e32\u5bf9\u8c61\u4f5c\u4e3a\u503c\u5bf9\u8c61\u3002<\/p>\n<\/p>\n<p>\u90a3\u4e48\u5728 Redis \u7684\u64cd\u4f5c\u65f6\uff1a<\/p>\n<ul>\n<li>\n<p>\u8bb2\u6570\u636e\u5e93\u952e\u7684\u6307\u9488\u6307\u5411\u4e00\u4e2a\u73b0\u6709\u7684\u503c\u5bf9\u8c61\u3002<\/p>\n<\/li>\n<li>\n<p>\u8bb2\u88ab\u5171\u4eab\u7684\u503c\u5bf9\u8c61\u5f15\u7528\u8ba1\u6570\u52a0\u4e00\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5047\u4f7f\uff0c\u6211\u4eec\u7684\u6570\u636e\u5e93\u4e2d\u6307\u5411\u6574\u6570\u503c 100 \u7684\u952e\u4e0d\u6b62\u952e A \u548c\u952e B\uff0c\u800c\u662f\u6709\u51e0\u767e\u4e2a\uff0c\u90a3\u4e48 Redis \u670d\u52a1\u5668\u4e2d\u53ea\u9700\u8981\u4e00\u4e2a\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684\u5185\u5b58\u5c31\u53ef\u4ee5\u4fdd\u5b58\u539f\u672c\u9700\u8981\u51e0\u767e\u4e2a\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684\u5185\u5b58\u624d\u80fd\u4fdd\u5b58\u7684\u6570\u636e\u3002<\/p>\n<p><strong><span style=\"font-size: x-large\">Redis \u662f\u5982\u4f55\u5b9e\u73b0\u4e3b\u4ece\u590d\u5236<\/span><\/strong><\/p>\n<\/p>\n<p>\u51e0\u4e2a\u5b9a\u4e49\uff1a<\/p>\n<ul>\n<li>\n<p>runID\uff1a\u670d\u52a1\u5668\u8fd0\u884c\u7684 ID\u3002<\/p>\n<\/li>\n<li>\n<p>Offset\uff1a\u4e3b\u670d\u52a1\u5668\u7684\u590d\u5236\u504f\u79fb\u91cf\u548c\u4ece\u670d\u52a1\u5668\u590d\u5236\u7684\u504f\u79fb\u91cf\u3002<\/p>\n<\/li>\n<li>\n<p>Replication backlog\uff1a\u4e3b\u670d\u52a1\u5668\u7684\u590d\u5236\u79ef\u538b\u7f13\u51b2\u533a\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5728 Redis 2.8 \u4e4b\u540e\uff0c\u4f7f\u7528 Psync \u547d\u4ee4\u4ee3\u66ff Sync \u547d\u4ee4\u6765\u6267\u884c\u590d\u5236\u7684\u540c\u6b65\u64cd\u4f5c\u3002<\/p>\n<p>Psync \u547d\u4ee4\u5177\u6709\u5b8c\u6574\u91cd\u540c\u6b65\u548c\u90e8\u5206\u91cd\u540c\u6b65\u4e24\u79cd\u6a21\u5f0f\uff1a<\/p>\n<ul>\n<li>\n<p>\u5b8c\u6574\u540c\u6b65\u7528\u4e8e\u5904\u7406\u521d\u6b21\u590d\u5236\u60c5\u51b5\uff1a\u5b8c\u6574\u91cd\u540c\u6b65\u7684\u6267\u884c\u6b65\u9aa4\u548c Sync \u547d\u4ee4\u6267\u884c\u6b65\u9aa4\u4e00\u81f4\uff0c\u90fd\u662f\u901a\u8fc7\u8ba9\u4e3b\u670d\u52a1\u5668\u521b\u5efa\u5e76\u53d1\u9001 RDB \u6587\u4ef6\uff0c\u4ee5\u53ca\u5411\u4ece\u670d\u52a1\u5668\u53d1\u9001\u4fdd\u5b58\u5728\u7f13\u51b2\u533a\u7684\u5199\u547d\u4ee4\u6765\u8fdb\u884c\u540c\u6b65\u3002<\/p>\n<\/li>\n<li>\n<p>\u90e8\u5206\u91cd\u540c\u6b65\u662f\u7528\u4e8e\u5904\u7406\u65ad\u7ebf\u540e\u91cd\u590d\u5236\u60c5\u51b5\uff1a\u5f53\u4ece\u670d\u52a1\u5668\u5728\u65ad\u7ebf\u540e\u91cd\u65b0\u8fde\u63a5\u4e3b\u670d\u52a1\u5668\u65f6\uff0c\u4e3b\u670d\u52a1\u53ef\u4ee5\u5c06\u4e3b\u4ece\u670d\u52a1\u5668\u8fde\u63a5\u65ad\u5f00\u671f\u95f4\u6267\u884c\u7684\u5199\u547d\u4ee4\u53d1\u9001\u7ed9\u4ece\u670d\u52a1\u5668\uff0c\u4ece\u670d\u52a1\u5668\u53ea\u8981\u63a5\u6536\u5e76\u6267\u884c\u8fd9\u4e9b\u5199\u547d\u4ee4\uff0c\u5c31\u53ef\u4ee5\u5c06\u6570\u636e\u5e93\u66f4\u65b0\u81f3\u4e3b\u670d\u52a1\u5668\u5f53\u524d\u6240\u5904\u7684\u72b6\u6001\u3002<\/p>\n<\/li>\n<\/ul>\n<\/p>\n<p>\u5b8c\u6574\u91cd\u540c\u6b65\uff1a<\/p>\n<ul>\n<li>\n<p>Slave \u53d1\u9001 Psync \u7ed9 Master\uff0c\u7531\u4e8e\u662f***\u6b21\u53d1\u9001\uff0c\u4e0d\u5e26\u4e0a runID \u548c Offset\u3002<\/p>\n<\/li>\n<li>\n<p>Master \u63a5\u6536\u5230\u8bf7\u6c42\uff0c\u53d1\u9001 Master \u7684 runID \u548c Offset \u7ed9\u4ece\u8282\u70b9\u3002<\/p>\n<\/li>\n<li>\n<p>Master \u751f\u6210\u4fdd\u5b58 RDB \u6587\u4ef6\u3002<\/p>\n<\/li>\n<li>\n<p>Master \u53d1\u9001 RDB \u6587\u4ef6\u7ed9 Slave\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u53d1\u9001 RDB \u8fd9\u4e2a\u64cd\u4f5c\u7684\u540c\u65f6\uff0c\u5199\u64cd\u4f5c\u4f1a\u590d\u5236\u5230\u7f13\u51b2\u533a Replication Backlog Buffer \u4e2d\uff0c\u5e76\u4ece Buffer \u533a\u53d1\u9001\u5230 Slave\u3002<\/p>\n<\/li>\n<li>\n<p>Slave \u5c06 RDB \u6587\u4ef6\u7684\u6570\u636e\u88c5\u8f7d\uff0c\u5e76\u66f4\u65b0\u81ea\u8eab\u6570\u636e\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679c\u7f51\u7edc\u7684\u6296\u52a8\u6216\u8005\u662f\u77ed\u65f6\u95f4\u7684\u65ad\u94fe\u4e5f\u9700\u8981\u8fdb\u884c\u5b8c\u6574\u540c\u6b65\u5c31\u4f1a\u5bfc\u81f4\u5927\u91cf\u7684\u5f00\u9500\uff0c\u8fd9\u4e9b\u5f00\u9500\u5305\u62ec\u4e86\uff0cBgsave \u7684\u65f6\u95f4\uff0cRDB \u6587\u4ef6\u4f20\u8f93\u7684\u65f6\u95f4\uff0cSlave \u91cd\u65b0\u52a0\u8f7d RDB \u65f6\u95f4\uff0c\u5982\u679c Slave \u6709 AOF\uff0c\u8fd8\u4f1a\u5bfc\u81f4 AOF \u91cd\u5199\u3002<\/p>\n<p>\u8fd9\u4e9b\u90fd\u662f\u5927\u91cf\u7684\u5f00\u9500\uff0c\u6240\u4ee5\u5728 Redis 2.8 \u4e4b\u540e\u4e5f\u5b9e\u73b0\u4e86\u90e8\u5206\u91cd\u540c\u6b65\u7684\u673a\u5236\u3002<\/p>\n<\/p>\n<p>\u90e8\u5206\u91cd\u540c\u6b65\uff1a<\/p>\n<ul>\n<li>\n<p>\u7f51\u7edc\u53d1\u751f\u9519\u8bef\uff0cMaster \u548c Slave \u5931\u53bb\u8fde\u63a5\u3002<\/p>\n<\/li>\n<li>\n<p>Master \u4f9d\u7136\u5411 Buffer \u7f13\u51b2\u533a\u5199\u5165\u6570\u636e\u3002<\/p>\n<\/li>\n<li>\n<p>Slave \u91cd\u65b0\u8fde\u63a5\u4e0a Master\u3002<\/p>\n<\/li>\n<li>\n<p>Slave \u5411 Master \u53d1\u9001\u81ea\u5df1\u76ee\u524d\u7684 runID \u548c Offset\u3002<\/p>\n<\/li>\n<li>\n<p>Master \u4f1a\u5224\u65ad Slave \u53d1\u9001\u7ed9\u81ea\u5df1\u7684 Offset \u662f\u5426\u5b58\u5728 Buffer \u961f\u5217\u4e2d\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u5b58\u5728\uff0c\u5219\u53d1\u9001 Continue \u7ed9 Slave;\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u610f\u5473\u7740\u53ef\u80fd\u9519\u8bef\u4e86\u592a\u591a\u7684\u6570\u636e\uff0c\u7f13\u51b2\u533a\u5df2\u7ecf\u88ab\u6e05\u7a7a\uff0c\u8fd9\u4e2a\u65f6\u5019\u5c31\u9700\u8981\u91cd\u65b0\u8fdb\u884c\u5168\u91cf\u7684\u590d\u5236\u3002<\/p>\n<\/li>\n<li>\n<p>Master \u53d1\u9001\u4ece Offset \u504f\u79fb\u540e\u7684\u7f13\u51b2\u533a\u6570\u636e\u7ed9 Slave\u3002<\/p>\n<\/li>\n<li>\n<p>Slave \u83b7\u53d6\u6570\u636e\u66f4\u65b0\u81ea\u8eab\u6570\u636e\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: x-large\">Redis \u662f\u600e\u4e48\u5236\u5b9a\u8fc7\u671f\u5220\u9664\u7b56\u7565\u7684<\/span><\/strong><\/p>\n<p>\u5f53\u4e00\u4e2a\u952e\u5904\u4e8e\u8fc7\u671f\u7684\u72b6\u6001\uff0c\u5176\u5b9e\u5728 Redis \u4e2d\u8fd9\u4e2a\u5185\u5b58\u5e76\u4e0d\u662f\u5b9e\u65f6\u5c31\u88ab\u4ece\u5185\u5b58\u4e2d\u8fdb\u884c\u6458\u9664\uff0c\u800c\u662f Redis \u901a\u8fc7\u4e00\u5b9a\u7684\u673a\u5236\u53bb\u628a\u4e00\u4e9b\u5904\u4e8e\u8fc7\u671f\u952e\u8fdb\u884c\u79fb\u9664\uff0c\u8fdb\u800c\u8fbe\u5230\u5185\u5b58\u7684\u91ca\u653e\uff0c\u90a3\u4e48\u5f53\u4e00\u4e2a\u952e\u5904\u4e8e\u8fc7\u671f\uff0cRedis \u4f1a\u5728\u4ec0\u4e48\u65f6\u5019\u53bb\u5220\u9664?<\/p>\n<p>\u51e0\u65f6\u88ab\u5220\u9664\u5b58\u5728\u4e09\u79cd\u53ef\u80fd\u6027\uff0c\u8fd9\u4e09\u79cd\u53ef\u80fd\u6027\u4e5f\u4ee3\u8868\u4e86 Redis \u7684\u4e09\u79cd\u4e0d\u540c\u7684\u5220\u9664\u7b56\u7565\u3002<\/p>\n<ul>\n<li>\n<p>\u5b9a\u65f6\u5220\u9664\uff1a\u5728\u8bbe\u7f6e\u952e\u8fc7\u53bb\u7684\u65f6\u95f4\u540c\u65f6\uff0c\u521b\u5efa\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u8ba9\u5b9a\u65f6\u5668\u5728\u952e\u8fc7\u671f\u65f6\u95f4\u6765\u4e34\uff0c\u7acb\u5373\u6267\u884c\u5bf9\u952e\u7684\u5220\u9664\u64cd\u4f5c\u3002<\/p>\n<\/li>\n<li>\n<p>\u60f0\u6027\u5220\u9664\uff1a\u653e\u4efb\u952e\u8fc7\u671f\u4e0d\u7ba1\uff0c\u4f46\u662f\u6bcf\u6b21\u4ece\u952e\u7a7a\u95f4\u83b7\u53d6\u952e\u65f6\uff0c\u90fd\u4f1a\u68c0\u67e5\u8be5\u952e\u662f\u5426\u8fc7\u671f\uff0c\u5982\u679c\u8fc7\u671f\u7684\u8bdd\uff0c\u5c31\u5220\u9664\u8be5\u952e\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b9a\u671f\u5220\u9664\uff1a\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\uff0c\u7a0b\u5e8f\u90fd\u8981\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u4e00\u6b21\u68c0\u67e5\uff0c\u5220\u9664\u91cc\u9762\u7684\u8fc7\u671f\u952e\uff0c\u81f3\u4e8e\u8981\u5220\u9664\u591a\u5c11\u8fc7\u671f\u952e\uff0c\u7531\u7b97\u6cd5\u800c\u5b9a\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>\u2460\u5b9a\u65f6\u5220\u9664<\/strong><\/p>\n<p>\u8bbe\u7f6e\u952e\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u521b\u5efa\u5b9a\u65f6\u5668\uff0c\u4e00\u65e6\u8fc7\u671f\u65f6\u95f4\u6765\u4e34\uff0c\u5c31\u7acb\u5373\u5bf9\u952e\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<p>\u8fd9\u79cd\u5bf9\u5185\u5b58\u662f\u53cb\u597d\u7684\uff0c\u4f46\u662f\u5bf9 CPU \u7684\u65f6\u95f4\u662f\u6700\u4e0d\u53cb\u597d\u7684\uff0c\u7279\u522b\u662f\u5728\u4e1a\u52a1\u7e41\u5fd9\uff0c\u8fc7\u671f\u952e\u5f88\u591a\u7684\u65f6\u5019\uff0c\u5220\u9664\u8fc7\u671f\u952e\u8fd9\u4e2a\u64cd\u4f5c\u5c31\u4f1a\u5360\u636e\u5f88\u5927\u4e00\u90e8\u5206 CPU \u7684\u65f6\u95f4\u3002<\/p>\n<p>\u8981\u77e5\u9053 Redis \u662f\u5355\u7ebf\u7a0b\u64cd\u4f5c\uff0c\u5728\u5185\u5b58\u4e0d\u7d27\u5f20\u800c CPU \u7d27\u5f20\u7684\u65f6\u5019\uff0c\u5c06 CPU \u7684\u65f6\u95f4\u6d6a\u8d39\u5728\u4e0e\u4e1a\u52a1\u65e0\u5173\u7684\u5220\u9664\u8fc7\u671f\u952e\u4e0a\u9762\uff0c\u4f1a\u5bf9 Redis \u7684\u670d\u52a1\u5668\u7684\u54cd\u5e94\u65f6\u95f4\u548c\u541e\u5410\u91cf\u9020\u6210\u5f71\u54cd\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u521b\u5efa\u4e00\u4e2a\u5b9a\u65f6\u5668\u9700\u8981\u7528\u5230 Redis \u670d\u52a1\u5668\u4e2d\u7684\u65f6\u95f4\u4e8b\u4ef6\uff0c\u800c\u5f53\u524d\u65f6\u95f4\u4e8b\u4ef6\u7684\u5b9e\u73b0\u65b9\u5f0f\u662f\u65e0\u5e8f\u94fe\u8868\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(n)\uff0c\u8ba9\u670d\u52a1\u5668\u5927\u91cf\u521b\u5efa\u5b9a\u65f6\u5668\u53bb\u5b9e\u73b0\u5b9a\u65f6\u5220\u9664\u7b56\u7565\uff0c\u4f1a\u4ea7\u751f\u8f83\u5927\u7684\u6027\u80fd\u5f71\u54cd\uff0c\u6240\u4ee5\uff0c\u5b9a\u65f6\u5220\u9664\u5e76\u4e0d\u662f\u4e00\u79cd\u597d\u7684\u5220\u9664\u7b56\u7565\u3002<\/p>\n<p><strong>\u2461\u60f0\u6027\u5220\u9664<\/strong><\/p>\n<p>\u4e0e\u5b9a\u65f6\u5220\u9664\u76f8\u53cd\uff0c\u60f0\u6027\u5220\u9664\u7b56\u7565\u5bf9 CPU \u6765\u8bf4\u662f\u6700\u53cb\u597d\u7684\uff0c\u7a0b\u5e8f\u53ea\u6709\u5728\u53d6\u51fa\u952e\u7684\u65f6\u5019\u624d\u4f1a\u8fdb\u884c\u68c0\u67e5\uff0c\u662f\u4e00\u79cd\u88ab\u52a8\u7684\u8fc7\u7a0b\u3002<\/p>\n<p>\u4e0e\u6b64\u540c\u65f6\uff0c\u60f0\u6027\u5220\u9664\u5bf9\u5185\u5b58\u6765\u8bf4\u53c8\u662f\u6700\u4e0d\u53cb\u597d\u7684\uff0c\u4e00\u4e2a\u952e\u8fc7\u671f\uff0c\u53ea\u8981\u4e0d\u518d\u88ab\u53d6\u51fa\uff0c\u8fd9\u4e2a\u8fc7\u671f\u952e\u5c31\u4e0d\u4f1a\u88ab\u5220\u9664\uff0c\u5b83\u5360\u7528\u7684\u5185\u5b58\u4e5f\u4e0d\u4f1a\u88ab\u91ca\u653e\u3002<\/p>\n<p>\u5f88\u660e\u663e\uff0c\u60f0\u6027\u5220\u9664\u4e5f\u4e0d\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u7b56\u7565\uff0cRedis \u662f\u975e\u5e38\u4f9d\u8d56\u5185\u5b58\u548c\u8f83\u597d\u5185\u5b58\u7684\uff0c\u5982\u679c\u4e00\u4e9b\u957f\u671f\u952e\u957f\u671f\u6ca1\u6709\u88ab\u8bbf\u95ee\uff0c\u5c31\u4f1a\u9020\u6210\u5927\u91cf\u7684\u5185\u5b58\u5783\u573e\uff0c\u751a\u81f3\u4f1a\u64cd\u6210\u5185\u5b58\u7684\u6cc4\u6f0f\u3002<\/p>\n<p>\u5728\u5bf9\u6267\u884c\u6570\u636e\u5199\u5165\u65f6\uff0c\u901a\u8fc7 expireIfNeeded \u51fd\u6570\u5bf9\u5199\u5165\u7684 Key \u8fdb\u884c\u8fc7\u671f\u5224\u65ad\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5176\u4e2d expireIfNeeded \u5728\u5185\u90e8\u505a\u4e86\u4e09\u4ef6\u4e8b\u60c5\uff0c\u5206\u522b\u662f\uff1a<\/p>\n<ul>\n<li>\n<p>\u67e5\u770b Key \u662f\u5426\u8fc7\u671f\u3002<\/p>\n<\/li>\n<li>\n<p>\u5411 Slave \u8282\u70b9\u4f20\u64ad\u6267\u884c\u8fc7\u53bb Key \u7684\u52a8\u4f5c\u3002<\/p>\n<\/li>\n<li>\n<p>\u5220\u9664\u8fc7\u671f Key\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong>\u2462\u5b9a\u671f\u5220\u9664<\/strong><\/p>\n<p>\u4e0a\u9762\u4e24\u79cd\u5220\u9664\u7b56\u7565\uff0c\u65e0\u8bba\u662f\u5b9a\u65f6\u5220\u9664\u548c\u60f0\u6027\u5220\u9664\uff0c\u8fd9\u4e24\u79cd\u5220\u9664\u65b9\u5f0f\u5728\u5355\u4e00\u7684\u4f7f\u7528\u4e0a\u90fd\u5b58\u5728\u660e\u663e\u7684\u7f3a\u9677\uff0c\u8981\u4e48\u5360\u7528\u592a\u591a CPU \u65f6\u95f4\uff0c\u8981\u4e48\u6d6a\u8d39\u592a\u591a\u5185\u5b58\u3002<\/p>\n<p>\u5b9a\u671f\u5220\u9664\u7b56\u7565\u662f\u524d\u4e24\u79cd\u7b56\u7565\u7684\u4e00\u4e2a\u6574\u5408\u548c\u6298\u4e2d\uff1a<\/p>\n<ul>\n<li>\n<p>\u5b9a\u671f\u5220\u9664\u7b56\u7565\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u6267\u884c\u4e00\u6b21\u5220\u9664\u8fc7\u671f\u952e\u64cd\u4f5c\uff0c\u5e76\u901a\u8fc7\u9650\u5236\u5220\u9664\u64cd\u4f5c\u6267\u884c\u7684\u65f6\u95f4\u548c\u9891\u7387\u6765\u51cf\u5c11\u5220\u9664\u64cd\u4f5c\u5bf9 CPU \u65f6\u95f4\u7684\u5f71\u54cd\u3002<\/p>\n<\/li>\n<li>\n<p>\u901a\u8fc7\u5408\u7406\u7684\u5220\u9664\u6267\u884c\u7684\u65f6\u957f\u548c\u9891\u7387\uff0c\u6765\u8fbe\u5230\u5408\u7406\u7684\u5220\u9664\u8fc7\u671f\u952e\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: x-large\">\u603b\u7ed3<\/span><\/strong><\/p>\n<p>Redis \u53ef\u8c13\u535a\u5927\u7cbe\u6df1\uff0c\u7b80\u5355\u7684\u4e03\u8fde\u95ee\u53ea\u662f\u76f2\u4eba\u6478\u8c61\uff0c\u8fd9\u6b21\u53ea\u662f\u6478\u5230\u4e86\u4e00\u6839\u8c61\u9f3b\u5b50\uff0c\u8fd8\u5e94\u8be5\u987a\u7740\u9f3b\u5b50\u5411\u4e0b\u6478\uff0c\u4e0b\u6b21\u53ef\u80fd\u6478\u5230\u4e86\u4e00\u53ea\u8c61\u8033\u6735\u3002<\/p>\n<p>\u53ea\u8981\u613f\u610f\u5f80\u4e0b\u6df1\u5165\u53bb\u4e86\u89e3\u53bb\u6478\u7d22\uff0c\u800c\u4e0d\u53ea\u5e94\u7528\u4e0d\u601d\u8003\uff0c\u603b\u6709\u4e00\u5929\u4f1a\u628a Redis \u8fd9\u53ea\u5927\u8c61\u7ed9\u6478\u900f\u4e86\u3002<\/p>\n<p>\u4f5c\u8005\uff1a\u9648\u4e8e\u5586\uff0c\u6ce8\uff1a\u90e8\u5206\u7ae0\u8282\u53c2\u8003\u548c\u5f15\u7528\u9ec4\u5065\u5b8f \u300aRedis \u8bbe\u8ba1\u4e0e\u5b9e\u73b0\u300b<\/p>\n<p>\u7b80\u4ecb\uff1a\u5341\u4f59\u5e74\u7684\u5f00\u53d1\u548c\u67b6\u6784\u7ecf\u9a8c\uff0c\u56fd\u5185\u8f83\u65e9\u4e00\u6279\u5fae\u670d\u52a1\u5f00\u53d1\u5b9e\u65bd\u8005\u3002\u66fe\u4efb\u804c\u56fd\u5185\u4e92\u8054\u7f51\u516c\u53f8\u7f51\u6613\u548c\u552f\u54c1\u4f1a\u9ad8\u7ea7\u7814\u53d1\u5de5\u7a0b\u5e08\uff0c\u540e\u5728\u521b\u4e1a\u516c\u53f8\u62c5\u4efb\u6280\u672f\u603b\u76d1\/\u67b6\u6784\u5e08\uff0c\u76ee\u524d\u5728\u6d0b\u8471\u96c6\u56e2\u4efb\u804c\u6280\u672f\u7814\u53d1\u526f\u603b\u76d1\u3002\u8d1f\u8d23\u6280\u672f\u90e8\u95e8\u7814\u53d1\u4f53\u7cfb\u5efa\u8bbe\uff0c\u56e2\u5efa\u5efa\u8bbe\uff0c\u4eba\u624d\u57f9\u517b\uff0c\u63a8\u52a8\u6574\u4e2a\u6280\u672f\u67b6\u6784\u6f14\u8fdb\u4ee5\u53ca\u5347\u7ea7\uff0c\u5e26\u9886\u6280\u672f\u56e2\u961f\u6784\u5efa\u5fae\u670d\u52a1\u67b6\u6784\u4f53\u7cfb\u3001\u5e73\u53f0\u67b6\u6784\u4f53\u7cfb\u3001\u81ea\u52a8\u5316\u8fd0\u7ef4\u4f53\u7cfb\u3002<\/p>\n<\/p>\n<p>\u3010golang\u5b66\u4e60\u7f51\u539f\u521b\u7a3f\u4ef6\uff0c\u5408\u4f5c\u7ad9\u70b9\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u539f\u6587\u4f5c\u8005\u548c\u51fa\u5904\u4e3agolang\u5b66\u4e60\u7f51.com\u3011<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f60\u597dRedis\uff0c\u6211\u67097\u4e2a\u95ee\u9898\u8981\u95ee&#46;&#46;&#46;<\/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-201470","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201470","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=201470"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201470\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}