{"id":10007047,"date":"2023-01-06T20:03:35","date_gmt":"2023-01-06T12:03:35","guid":{"rendered":"https:\/\/ityet.com\/?p=10007047"},"modified":"2023-01-06T20:03:35","modified_gmt":"2023-01-06T12:03:35","slug":"%e5%88%a8%e6%a0%b9%e9%97%ae%e5%ba%95-redis%ef%bc%8c-%e9%9d%a2%e8%af%95%e8%bf%87%e7%a8%8b%e7%9c%9f%e5%a5%bd%e4%bd%bf","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10007047","title":{"rendered":"\u5228\u6839\u95ee\u5e95 Redis\uff0c \u9762\u8bd5\u8fc7\u7a0b\u771f\u597d\u4f7f"},"content":{"rendered":"<p>\u5927\u5bb6\u597d\uff0c\u8fd9\u91cc\u662f <strong>\u83dc\u519c\u66f0<\/strong>\uff0c\u6b22\u8fce\u6765\u5230\u6211\u7684\u9891\u9053\u3002<\/p>\n<blockquote><p>\u5145\u6ee1\u5bd2\u6c14\u7684\u4e92\u8054\u7f51\u5982\u4f55\u5728\u9762\u8bd5\u4e2d\u8131\u9896\u800c\u51fa\uff0c\u5e73\u65f6\u79ef\u7d2f\u5f88\u91cd\u8981\uff0c\u516b\u80a1\u6587\u66f4\u4e0d\u80fd\u5c11\uff01\u4e0b\u9762\u5e26\u6765\u7684\u8fd9\u7bc7 Redis \u95ee\u7b54\u5e0c\u671b\u80fd\u591f\u5728\u4f60\u7684 offer \u4e0a\u589e\u6dfb\u4e00\u628a\ud83d\udd25\u3002<\/p><\/blockquote>\n<p>\u5728 Web \u5e94\u7528\u53d1\u5c55\u7684\u521d\u671f\u9636\u6bb5\uff0c\u4e00\u4e2a\u7f51\u7ad9\u7684\u8bbf\u95ee\u91cf\u672c\u8eab\u5c31\u4e0d\u662f\u5f88\u9ad8\uff0c\u76f4\u63a5\u4f7f\u7528\u5173\u7cfb\u578b\u6570\u636e\u5e93\u5c31\u53ef\u4ee5\u5e94\u4ed8\u7edd\u5927\u90e8\u5206\u573a\u666f\u3002\u4f46\u662f\u968f\u7740\u4e92\u8054\u7f51\u65f6\u4ee3\u7684\u5d1b\u8d77\uff0c\u4eba\u4eec\u5bf9\u4e8e\u7f51\u7ad9\u8bbf\u95ee\u901f\u5ea6\u6709\u7740\u8d8a\u6765\u8d8a\u9ad8\u7684\u8981\u6c42\uff0c\u76f4\u63a5\u4f7f\u7528\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u65b9\u6848\u5728\u6027\u80fd\u4e0a\u5c31\u51fa\u73b0\u4e86\u74f6\u9888\u3002\u56e0\u6b64\u5728\u5ba2\u6237\u7aef\u4e0e\u6570\u636e\u5c42\u4e4b\u95f4\u5c31\u9700\u8981\u4e00\u4e2a\u7f13\u5b58\u5c42\u6765\u5206\u62c5\u8bf7\u6c42\u538b\u529b\uff0c\u800c Redis \u4f5c\u4e3a\u4e00\u6b3e\u4f18\u79c0\u7684\u7f13\u5b58\u4e2d\u95f4\u4ef6\uff0c\u5728\u4f01\u4e1a\u7ea7\u67b6\u6784\u4e2d\u5360\u6709\u91cd\u8981\u7684\u5730\u4f4d\uff0c\u56e0\u6b64 Redis \u4e5f\u4f5c\u4e3a\u9762\u8bd5\u7684\u5fc5\u95ee\u9879\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797334\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>\u672c\u6587\u901a\u8fc730\u4e2a\u95ee\u9898\uff0c\u7531\u6d45\u5165\u6df1\uff0c\u6700\u5927\u7a0b\u5ea6\u4e0a\u8986\u76d6\u6574\u4e2aRedis\u7684\u95ee\u7b54\u5185\u5bb9<\/strong><\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797335\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<hr>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797336\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>Redis\uff08Remote Dictionary Server\uff09\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u3001\u952e\u503c\u5bf9\u578b\u7684\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\u3002\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\uff0c\u9075\u5b88BSD\u534f\u8bae\uff0c\u53ef\u57fa\u4e8e\u5185\u5b58\u4e5f\u53ef\u6301\u4e45\u5316\u7684\u65e5\u5fd7\u578b\u6570\u636e\u5e93\uff0c\u63d0\u4f9b\u4e86\u591a\u79cd\u8bed\u8a00\u7684API\uff0c\u88ab\u5e7f\u6cdb\u7528\u4e8e\u6570\u636e\u5e93\u3001\u7f13\u5b58\u548c\u6d88\u606f\u4e2d\u95f4\u4ef6\u3002\u5e76\u4e14\u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5e94\u5bf9\u5404\u79cd\u4e0d\u540c\u573a\u666f\u3002\u53ef\u4ee5\u5b58\u50a8\u591a\u79cd\u4e0d\u540c\u7c7b\u578b\u503c\u4e4b\u95f4\u7684\u6620\u5c04\uff0c\u652f\u6301\u4e8b\u52a1\uff0c\u6301\u4e45\u5316\uff0cLUA \u811a\u672c\u4ee5\u53ca\u591a\u79cd\u96c6\u7fa4\u65b9\u6848\u7b49\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797337\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n<ol>\n<li>\u5b8c\u5168\u57fa\u4e8e\u5185\u5b58\u64cd\u4f5c\uff0c\u6027\u80fd\u6781\u9ad8\uff0c\u8bfb\u5199\u901f\u5ea6\u5feb\uff0cRedis \u80fd\u591f\u652f\u6301\u8d85\u8fc7 100KB\/s \u7684\u8bfb\u5199\u901f\u7387<\/li>\n<li>\u652f\u6301\u9ad8\u5e76\u53d1\uff0c\u652f\u630110\u4e07\u7ea7\u522b\u7684\u5e76\u53d1\u8bfb\u5199<\/li>\n<li>\u652f\u6301\u4e3b\u4ece\u6a21\u5f0f\uff0c\u652f\u6301\u8bfb\u5199\u5206\u79bb\u4e0e\u5206\u5e03\u5f0f<\/li>\n<li>\u5177\u6709\u4e30\u5bcc\u7684\u6570\u636e\u7c7b\u578b\u4e0e\u4e30\u5bcc\u7684\u7279\u6027\uff08\u53d1\u5e03\u8ba2\u9605\u6a21\u5f0f\uff09<\/li>\n<li>\u652f\u6301\u6301\u4e45\u5316\u64cd\u4f5c\uff0c\u4e0d\u4f1a\u4e22\u5931\u6570\u636e<\/li>\n<\/ol>\n<p><strong>\u7f3a\u70b9\uff1a<\/strong><\/p>\n<ol>\n<li>\u6570\u636e\u5e93\u5bb9\u91cf\u53d7\u5230\u7269\u7406\u5185\u5b58\u7684\u9650\u5236\uff0c\u4e0d\u80fd\u5b9e\u73b0\u6d77\u91cf\u6570\u636e\u7684\u9ad8\u6027\u80fd\u8bfb\u5199<\/li>\n<li>\u76f8\u6bd4\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u4e0d\u652f\u6301\u590d\u6742\u903b\u8f91\u67e5\u8be2\uff0c\u4e14\u5b58\u50a8\u7ed3\u6784\u76f8\u5bf9\u7b80\u5355<\/li>\n<li>\u867d\u7136\u63d0\u4f9b\u6301\u4e45\u5316\u80fd\u529b\uff0c\u4f46\u5b9e\u9645\u66f4\u591a\u662f\u4e00\u4e2a disk-backed \u529f\u80fd\uff0c\u4e0e\u4f20\u7edf\u610f\u4e49\u4e0a\u7684\u6301\u4e45\u5316\u6709\u6240\u533a\u522b<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797338\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<blockquote><p>Memcache \u4e5f\u662f\u4e00\u4e2a\u5f00\u6e90\u3001\u9ad8\u6027\u80fd\u3001\u5206\u5e03\u5f0f\u5185\u5b58\u5bf9\u8c61\u7f13\u5b58\u7cfb\u7edf\u3002\u6240\u6709\u6570\u636e\u5747\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\uff0c\u5728\u670d\u52a1\u5668\u91cd\u542f\u4e4b\u540e\u5c31\u4f1a\u6d88\u5931\uff0c\u9700\u8981\u91cd\u65b0\u52a0\u8f7d\u6570\u636e\uff0c\u91c7\u7528 hash \u8868\u7684\u65b9\u5f0f\u5c06\u6240\u6709\u6570\u636e\u7f13\u5b58\u5728\u5185\u5b58\u4e2d\uff0c\u91c7\u7528 LRU \u7b97\u6cd5\u6765\u9010\u6e10\u628a\u8fc7\u671f\u7684\u6570\u636e\u6e05\u9664\u6389\u3002<\/p><\/blockquote>\n<ol>\n<li><strong>\u6570\u636e\u7c7b\u578b<\/strong>\uff1aMemcache \u4ec5\u652f\u6301\u5b57\u7b26\u4e32\u7c7b\u578b\uff0cRedis \u652f\u6301 5 \u79cd\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b<\/li>\n<li><strong>\u6570\u636e\u6301\u4e45\u5316<\/strong>\uff1aMemcache \u4e0d\u652f\u6301\u6301\u4e45\u5316\uff0cRedis \u652f\u6301\u4e24\u79cd\u6301\u4e45\u5316\u7b56\u7565\uff0cRDB \u5feb\u7167 \u548c AOF \u65e5\u5fd7<\/li>\n<li><strong>\u5206\u5e03\u5f0f<\/strong>\uff1aMemcache \u4e0d\u652f\u6301\u5206\u5e03\u5f0f\uff0c\u53ea\u80fd\u5728\u5ba2\u6237\u7aef\u4f7f\u7528\u4e00\u81f4\u6027\u54c8\u5e0c\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u5206\u5e03\u5f0f\u5b58\u50a8\uff0cRedis3.0 \u4e4b\u540e\u53ef\u5728\u670d\u52a1\u7aef\u6784\u5efa\u5206\u5e03\u5f0f\u5b58\u50a8\uff0cRedis\u96c6\u7fa4\u6ca1\u6709\u4e2d\u5fc3\u8282\u70b9\uff0c\u5404\u4e2a\u8282\u70b9\u5730\u4f4d\u5e73\u7b49\uff0c\u5177\u6709\u7ebf\u6027\u53ef\u4f38\u7f29\u7684\u529f\u80fd\u3002<\/li>\n<li><strong>\u5185\u5b58\u7ba1\u7406\u673a\u5236<\/strong>\uff1aMemcache\u6570\u636e\u91cf\u4e0d\u80fd\u8d85\u51fa\u7cfb\u7edf\u5185\u5b58\uff0c\u4f46\u53ef\u4ee5\u8c03\u6574\u5185\u5b58\u5927\u5c0f\uff0c\u6dd8\u6c70\u7b56\u7565\u91c7\u7528LRU\u7b97\u6cd5\u3002Redis\u589e\u52a0\u4e86 VM \u7279\u6027\uff0c\u5b9e\u73b0\u4e86\u7269\u7406\u5185\u5b58\u7684\u9650\u5236\uff0c\u5b83\u4eec\u4e4b\u95f4\u5e95\u5c42\u5b9e\u73b0\u65b9\u5f0f\u4ee5\u53ca\u5ba2\u6237\u7aef\u4e4b\u95f4\u901a\u4fe1\u7684\u5e94\u7528\u534f\u8bae\u4e0d\u4e00\u6837\u3002<\/li>\n<li><strong>\u6570\u636e\u5927\u5c0f\u9650\u5236<\/strong>\uff1aMemcache \u5355\u4e2a key-value \u5927\u5c0f\u6709\u9650\u5236\uff0c\u4e00\u4e2aValue\u6700\u5927\u5bb9\u91cf\u4e3a 1MB\uff0cRedis \u6700\u5927\u5bb9\u91cf\u4e3a512 MB<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797339\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff1a<\/strong><\/p>\n<ul>\n<li>String\uff08\u5b57\u7b26\u4e32\uff09<\/li>\n<li>Hash\uff08\u54c8\u5e0c\uff09<\/li>\n<li>List\uff08\u5217\u8868\uff09<\/li>\n<li>Set\uff08\u96c6\u5408\uff09<\/li>\n<li>ZSet\uff08Sorted Set \u6709\u5e8f\u96c6\u5408\uff09<\/li>\n<\/ul>\n<p><strong>\u9ad8\u7ea7\u6570\u636e\u7c7b\u578b\uff1a<\/strong><\/p>\n<ul>\n<li>HyperLogLog\uff1a\u7528\u6765\u505a\u57fa\u6570\u7edf\u8ba1\u7684\u7b97\u6cd5\uff0c\u5728\u8f93\u5165\u5143\u7d20\u7684\u6570\u91cf\u6216\u4f53\u79ef\u975e\u5e38\u5927\u65f6\uff0c\u8ba1\u7b97\u57fa\u6570\u6240\u9700\u7684\u7a7a\u95f4\u603b\u662f\u56fa\u5b9a\u7684\uff0c\u5e76\u4e14\u662f\u5f88\u5c0f\u7684\u3002HyperLogLog \u53ea\u4f1a\u6839\u636e\u8f93\u5165\u5143\u7d20\u6765\u8ba1\u7b97\u57fa\u6570\uff0c\u800c\u4e0d\u4f1a\u5b58\u50a8\u8f93\u5165\u5143\u7d20\u672c\u8eab<\/li>\n<li>Geo\uff1a\u7528\u6765\u5730\u7406\u4f4d\u7f6e\u7684\u5b58\u50a8\u548c\u8ba1\u7b97<\/li>\n<li>BitMap\uff1a\u5b9e\u9645\u4e0a\u4e0d\u662f\u7279\u6b8a\u7684\u5b58\u50a8\u7ed3\u6784\uff0c\u672c\u8d28\u4e0a\u662f\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u8fdb\u884c\u4f4d\u64cd\u4f5c\uff0c\u5e38\u7528\u4e8e\u7edf\u8ba1\u65e5\u6d3b\u8dc3\u7528\u6237\u7b49<\/li>\n<\/ul>\n<blockquote><p><em>\u6269\u5c55\uff1a<\/em> geohash\u901a\u8fc7\u7b97\u6cd5\u5c061\u4e2a\u5b9a\u4f4d\u7684\u7ecf\u5ea6\u548c\u7eac\u5ea62\u4e2a\u6570\u503c\uff0c\u8f6c\u6362\u62101\u4e2ahash\u5b57\u7b26\u4e32\u3002\u5982\u679c2\u4e2a\u5730\u65b9\u8ddd\u79bb\u8d8a\u8fd1\uff0c\u90a3\u4e48\u4ed6\u4eec\u7684hash\u503c\u7684\u524d\u7f00\u8d8a\u76f8\u540c\u3002<\/p><\/blockquote>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797340\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>Redis \u5e95\u5c42\u5b9e\u73b0\u4e86\u7b80\u5355\u52a8\u6001\u5b57\u7b26\u4e32\u7684\u7c7b\u578b\uff08Simple Dynamic String\uff0cSDS\uff09\u6765\u8868\u793a String \u7c7b\u578b\u3002\u6ca1\u6709\u76f4\u63a5\u4f7f\u7528C\u8bed\u8a00\u5b9a\u4e49\u7684\u5b57\u7b26\u4e32\u7c7b\u578b\u3002<\/p>\n<blockquote><p>SDS \u5b9e\u73b0\u76f8\u5bf9\u4e8eC\u8bed\u8a00String\u65b9\u5f0f\u7684\u63d0\u5347<\/p><\/blockquote>\n<ol>\n<li>\u907f\u514d\u7f13\u51b2\u533a\u79fb\u9664\u3002\u5bf9\u5b57\u7b26\u4fee\u6539\u65f6\uff0c\u53ef\u4ee5\u6839\u636e len \u5c5e\u6027\u68c0\u67e5\u7a7a\u95f4\u662f\u5426\u6ee1\u8db3\u8981\u6c42<\/li>\n<li>\u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u590d\u6742\u5ea6\u8f83\u4f4e<\/li>\n<li>\u51cf\u5c11\u5185\u5b58\u5206\u914d\u6b21\u6570<\/li>\n<li>\u517c\u5bb9C\u5b57\u7b26\u4e32\u51fd\u6570\uff0c\u53ef\u4ee5\u91cd\u7528C\u8bed\u8a00\u5e93\u7684\u4e00\u90e8\u5206\u51fd\u6570<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797341\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>Redis \u76f4\u63a5\u4ee5\u5185\u5b58\u7684\u65b9\u5f0f\u5b58\u50a8\u53ef\u4ee5\u8fbe\u5230\u6700\u5feb\u7684\u8bfb\u5199\u901f\u5ea6\uff0c\u5982\u679c\u5f00\u542f\u4e86\u6301\u4e45\u5316\u5219\u901a\u8fc7\u5f02\u6b65\u7684\u65b9\u5f0f\u5c06\u6570\u636e\u5199\u5165\u78c1\u76d8\uff0c\u56e0\u6b64Redis \u5177\u6709\u5feb\u901f\u548c\u6570\u636e\u6301\u4e45\u5316\u7684\u7279\u5f81\u3002<\/p>\n<p>\u5728\u5185\u5b58\u4e2d\u64cd\u4f5c\u672c\u8eab\u5c31\u6bd4\u4ece\u78c1\u76d8\u64cd\u4f5c\u66f4\u5feb\uff0c\u4e14\u4e0d\u53d7\u78c1\u76d8I\/O\u901f\u5ea6\u7684\u5f71\u54cd\u3002\u5982\u679c\u4e0d\u5c06\u6570\u636e\u653e\u5728\u5185\u5b58\u4e2d\u800c\u662f\u4fdd\u5b58\u5230\u78c1\u76d8\uff0c\u78c1\u76d8I\/O\u901f\u5ea6\u4f1a\u4e25\u91cd\u5f71\u54cd\u5230Redis \u7684\u6027\u80fd\uff0c\u800c\u6570\u636e\u96c6\u5927\u5c0f\u5982\u679c\u8fbe\u5230\u4e86\u5185\u5b58\u7684\u6700\u5927\u9650\u5b9a\u503c\u5219\u4e0d\u80fd\u7ee7\u7eed\u63d2\u5165\u65b0\u503c\u3002<\/p>\n<p>\u5982\u679c\u6253\u5f00\u4e86\u865a\u62df\u5185\u5b58\u529f\u80fd\uff0c\u5f53\u5185\u5b58\u7528\u5c3d\u65f6\uff0cRedis\u5c31\u4f1a\u628a\u90a3\u4e9b\u4e0d\u7ecf\u5e38\u4f7f\u7528\u7684\u6570\u636e\u5b58\u50a8\u5230\u78c1\u76d8\uff0c\u5982\u679cRedis\u4e2d\u7684\u865a\u62df\u5185\u5b58\u88ab\u7981\u4e86\uff0c\u5b83\u5c31\u4f1a\u64cd\u4f5c\u7cfb\u7edf\u7684\u865a\u62df\u5185\u5b58\uff08\u4ea4\u6362\u5185\u5b58\uff09\uff0c\u4f46\u8fd9\u65f6Redis\u7684\u6027\u80fd\u4f1a\u6025\u5267\u4e0b\u964d\u3002\u5982\u679c\u914d\u7f6e\u4e86\u6dd8\u6c70\u673a\u5236\uff0c\u4f1a\u6839\u636e\u5df2\u914d\u7f6e\u7684\u6570\u636e\u6dd8\u6c70\u673a\u5236\u6765\u6dd8\u6c70\u65e7\u6570\u636e\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797342\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>1\u3001<strong>\u5c3d\u53ef\u80fd\u4f7f\u7528\u54c8\u5e0c\u8868\uff08hash \u6570\u636e\u7ed3\u6784\uff09<\/strong>\uff1aRedis \u5728\u50a8\u5b58\u5c0f\u4e8e100\u4e2a\u5b57\u6bb5\u7684Hash\u7ed3\u6784\u4e0a\uff0c\u5176\u5b58\u50a8\u6548\u7387\u662f\u975e\u5e38\u9ad8\u7684\u3002\u6240\u4ee5\u5728\u4e0d\u9700\u8981\u96c6\u5408\uff08set\uff09\u64cd\u4f5c\u6216 list \u7684push\/pop \u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u5c3d\u53ef\u80fd\u4f7f\u7528 hash \u7ed3\u6784\u3002<\/p>\n<p>2\u3001<strong>\u6839\u636e\u4e1a\u52a1\u573a\u666f\uff0c\u8003\u8651\u4f7f\u7528 BitMap<\/strong><\/p>\n<p>3\u3001<strong>\u5145\u5206\u5229\u7528\u5171\u4eab\u5bf9\u8c61\u6c60<\/strong>\uff1aRedis \u542f\u52a8\u65f6\u4f1a\u81ea\u52a8\u521b\u5efa\u30100-9999\u3011\u7684\u6574\u6570\u5bf9\u8c61\u6c60\uff0c\u5bf9\u4e8e 0-9999\u7684\u5185\u90e8\u6574\u6570\u7c7b\u578b\u7684\u5143\u7d20\uff0c\u6574\u6570\u503c\u5bf9\u8c61\u90fd\u4f1a\u76f4\u63a5\u5f15\u7528\u6574\u6570\u5bf9\u8c61\u6c60\u4e2d\u7684\u5bf9\u8c61\uff0c\u56e0\u6b64\u5c3d\u91cf\u4f7f\u7528 0-9999 \u6574\u6570\u5bf9\u8c61\u53ef\u8282\u7701\u5185\u5b58\u3002<\/p>\n<p>4\u3001<strong>\u5408\u7406\u4f7f\u7528\u5185\u5b58\u56de\u6536\u7b56\u7565<\/strong>\uff1a\u8fc7\u671f\u6570\u636e\u6e05\u9664\u3001expire \u8bbe\u7f6e\u6570\u636e\u8fc7\u671f\u65f6\u95f4\u7b49<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797343\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<blockquote><p>Redis \u80fd\u591f\u7528\u6765\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u547d\u4ee4\u6709 INCR\u3001SETNX\u3001SET\uff0c\u5e76\u5229\u7528\u8fc7\u671f\u65f6\u95f4\u547d\u4ee4 expire \u4f5c\u4e3a\u8f85\u52a9<\/p><\/blockquote>\n<p><strong>\u65b9\u5f0f1\uff1a\u5229\u7528 INCR<\/strong><\/p>\n<p>\u5982\u679c key \u4e0d\u5b58\u5728\uff0c\u5219\u521d\u59cb\u5316\u503c\u4e3a 0\uff0c\u7136\u540e\u518d\u5229\u7528 <code>INCR<\/code> \u8fdb\u884c\u52a0 1 \u64cd\u4f5c\u3002\u540e\u7eed\u7528\u6237\u5982\u679c\u83b7\u53d6\u5230\u7684\u503c\u5927\u4e8e\u7b49\u4e8e 1\uff0c\u8bf4\u660e\u5df2\u7ecf\u88ab\u5176\u4ed6\u7ebf\u7a0b\u52a0\u9501\u3002\u5f53\u6301\u6709\u9501\u7684\u7528\u6237\u5728\u6267\u884c\u5b8c\u4efb\u52a1\u540e\uff0c\u5229\u7528 <code>DECR<\/code> \u547d\u4ee4\u5c06 key \u7684\u503c\u51cf 1\uff0c\u5219\u8868\u793a\u91ca\u653e\u9501\u3002<\/p>\n<p><strong>\u65b9\u5f0f2\uff1a\u5229\u7528 SETNX<\/strong><\/p>\n<p>\u5148\u4f7f\u7528 <code>setnx<\/code> \u6765\u4e89\u62a2\u9501\uff0c\u62a2\u5230\u4e4b\u540e\u5229\u7528 <code>expire<\/code> \u8bbe\u7f6e\u4e00\u4e2a\u8fc7\u671f\u65f6\u95f4\u9632\u6b62\u672a\u80fd\u91ca\u653e\u9501\u3002<code>setnx<\/code> \u7684\u610f\u4e49\u662f\u5982\u679c key \u4e0d\u5b58\u5728\uff0c\u5219\u5c06key\u8bbe\u7f6e\u4e3a value\uff0c\u8fd4\u56de 1\u3002\u5982\u679c\u5df2\u5b58\u5728\uff0c\u5219\u4e0d\u505a\u4efb\u4f55\u64cd\u4f5c\uff0c\u8fd4\u56de 0\u3002<\/p>\n<p><strong>\u65b9\u5f0f3\uff1a\u5229\u7528 SET<\/strong><\/p>\n<p><code>set<\/code> \u6307\u4ee4\u6709\u975e\u5e38\u590d\u6742\u7684\u53c2\u6570\uff0c\u76f8\u5f53\u4e8e\u5408\u6210\u4e86 <code>setnx<\/code> \u548c <code>expire<\/code> \u4e24\u6761\u547d\u4ee4\u7684\u529f\u80fd\u3002\u5176\u547d\u4ee4\u683c\u5f0f\u5982\uff1a<code>set($Key,$value, array('nx', 'ex'=&gt;$ttl))<\/code>\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797344\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<ol>\n<li>\u5b8c\u5168\u57fa\u4e8e\u5185\u5b58<\/li>\n<li>\u6570\u636e\u7ed3\u6784\u7b80\u5355\uff0c\u64cd\u4f5c\u65b9\u4fbf\uff0c\u5e76\u4e14\u4e0d\u540c\u6570\u636e\u7ed3\u6784\u80fd\u591f\u5e94\u5bf9\u4e8e\u4e0d\u540c\u573a\u666f<\/li>\n<li>\u91c7\u7528\u5355\u7ebf\u7a0b\uff08\u7f51\u7edc\u8bf7\u6c42\u6a21\u5757\u4f7f\u7528\u5355\u7ebf\u7a0b\uff0c\u5176\u4ed6\u6a21\u5757\u4ecd\u7528\u4e86\u591a\u7ebf\u7a0b\uff09\uff0c\u907f\u514d\u4e86\u4e0d\u5fc5\u8981\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u7ade\u4e89\u6761\u4ef6\uff0c\u4e5f\u4e0d\u5b58\u5728\u591a\u8fdb\u7a0b\u6216\u591a\u7ebf\u7a0b\u5207\u6362\u5bfc\u81f4CPU\u6d88\u8017\uff0c\u4e0d\u9700\u8981\u8003\u8651\u5404\u79cd\u9501\u7684\u95ee\u9898\u3002<\/li>\n<li>\u4f7f\u7528\u591a\u8defI\/O\u590d\u7528\u6a21\u578b\uff0c\u4e3a\u975e\u963b\u585eI\/O<\/li>\n<li>Redis \u672c\u8eab\u8bbe\u5b9a\u4e86 VM \u673a\u5236\uff0c\u6ca1\u6709\u4f7f\u7528 OS \u7684Swap\uff0c\u53ef\u4ee5\u5b9e\u73b0\u51b7\u70ed\u6570\u636e\u5206\u79bb\uff0c\u907f\u514d\u56e0\u4e3a\u5185\u5b58\u4e0d\u8db3\u800c\u9020\u6210\u8bbf\u95ee\u901f\u5ea6\u4e0b\u964d\u7684\u95ee\u9898<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797345\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>1\u3001RDB\uff08Redis DataBase\uff09\u6301\u4e45\u5316<\/strong><\/p>\n<p>RDB \u662f Redis \u4e2d\u9ed8\u8ba4\u7684\u6301\u4e45\u5316\u673a\u5236\uff0c\u6309\u7167\u4e00\u5b9a\u7684\u65f6\u95f4\u5c06\u5185\u5b58\u4e2d\u7684\u6570\u636e\u4ee5\u5feb\u7167\u7684\u65b9\u5f0f\u4fdd\u5b58\u5230\u78c1\u76d8\u4e2d\uff0c\u5b83\u4f1a\u4ea7\u751f\u4e00\u4e2a\u7279\u6b8a\u7c7b\u578b\u7684\u6587\u4ef6 <code>.rdb<\/code> \u6587\u4ef6\uff0c\u540c\u65f6\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684 <code>save<\/code> \u53c2\u6570\u6765\u5b9a\u4e49\u5feb\u7167\u7684\u5468\u671f<\/p>\n<p>\u5728 RDB \u4e2d\u6709\u4e24\u4e2a\u6838\u5fc3\u6982\u5ff5 <code>fork<\/code> \u548c <code>cow<\/code>\uff0c\u5728\u6267\u884c\u5907\u4efd\u7684\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<p>\u5728\u6267\u884c<code>bgsave<\/code>\u7684\u65f6\u5019\uff0cRedis \u4f1a fork \u4e3b\u8fdb\u7a0b\u5f97\u5230\u4e00\u4e2a\u65b0\u7684\u5b50\u8fdb\u7a0b\uff0c\u5b50\u8fdb\u7a0b\u662f\u5171\u4eab\u4e3b\u8fdb\u7a0b\u5185\u5b58\u6570\u636e\u7684\uff0c\u4f1a\u5c06\u6570\u636e\u5199\u5230\u78c1\u76d8\u4e0a\u7684\u4e00\u4e2a\u4e34\u65f6\u7684 <code>.rdb<\/code> \u6587\u4ef6\u4e2d\uff0c\u5f53\u5b50\u8fdb\u7a0b\u5199\u5b8c\u4e34\u65f6\u6587\u4ef6\u540e\uff0c\u4f1a\u5c06\u539f\u6765\u7684 <code>.rdb<\/code> \u6587\u4ef6\u66ff\u6362\u6389\uff0c\u8fd9\u4e2a\u5c31\u662f fork \u7684\u6982\u5ff5\u3002\u90a3 cow \u5168\u79f0\u662f copy-on-write \uff0c\u5f53\u4e3b\u8fdb\u7a0b\u6267\u884c\u8bfb\u64cd\u4f5c\u7684\u65f6\u5019\u662f\u8bbf\u95ee\u5171\u4eab\u5185\u5b58\u7684\uff0c\u800c\u4e3b\u8fdb\u7a0b\u6267\u884c\u5199\u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u5219\u4f1a\u62f7\u8d1d\u4e00\u4efd\u6570\u636e\uff0c\u6267\u884c\u5199\u64cd\u4f5c\u3002<\/p>\n<p><strong><em>\u4f18\u70b9<\/em><\/strong><\/p>\n<ol>\n<li>\u53ea\u6709\u4e00\u4e2a\u6587\u4ef6 dump.rdb \uff0c\u65b9\u4fbf\u6301\u4e45\u5316<\/li>\n<li>\u5bb9\u9519\u6027\u597d\uff0c\u4e00\u4e2a\u6587\u4ef6\u53ef\u4ee5\u4fdd\u5b58\u5230\u5b89\u5168\u7684\u78c1\u76d8<\/li>\n<li>\u5b9e\u73b0\u4e86\u6027\u80fd\u6700\u5927\u5316\uff0cfork \u5355\u72ec\u5b50\u8fdb\u7a0b\u6765\u5b8c\u6210\u6301\u4e45\u5316\uff0c\u8ba9\u4e3b\u8fdb\u7a0b\u7ee7\u7eed\u5904\u7406\u547d\u4ee4\uff0c\u4e3b\u8fdb\u7a0b\u4e0d\u8fdb\u884c\u4efb\u4f55 I\/O \u64cd\u4f5c\uff0c\u4ece\u800c\u4fdd\u8bc1\u4e86Redis\u7684\u9ad8\u6027\u80fd<\/li>\n<li>RDB \u662f\u4e00\u4e2a\u7d27\u51d1\u538b\u7f29\u7684\u4e8c\u8fdb\u5236\u6587\u5316\uff0cRDB\u91cd\u542f\u65f6\u7684\u52a0\u8f7d\u6548\u7387\u6bd4AOF\u6301\u4e45\u5316\u66f4\u9ad8\uff0c\u5728\u6570\u636e\u91cf\u5927\u65f6\u66f4\u660e\u663e<\/li>\n<\/ol>\n<p><strong><em>\u7f3a\u70b9<\/em><\/strong><\/p>\n<ol>\n<li>\u53ef\u80fd\u51fa\u73b0\u6570\u636e\u4e22\u5931\uff0c\u5728\u4e24\u6b21RDB\u6301\u4e45\u5316\u7684\u65f6\u95f4\u95f4\u9694\u4e2d\uff0c\u5982\u679c\u51fa\u73b0\u5b95\u673a\uff0c\u5219\u4f1a\u4e22\u5931\u8fd9\u6bb5\u65f6\u95f4\u4e2d\u7684\u6570\u636e<\/li>\n<li>\u7531\u4e8eRDB\u662f\u901a\u8fc7fork\u5b50\u8fdb\u7a0b\u6765\u534f\u52a9\u5b8c\u6210\u6570\u636e\u6301\u4e45\u5316\uff0c\u5982\u679c\u5f53\u6570\u636e\u96c6\u8f83\u5927\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6574\u4e2a\u670d\u52a1\u5668\u95f4\u6b47\u6027\u6682\u505c\u670d\u52a1<\/li>\n<\/ol>\n<p><strong>2\u3001AOF\uff08Append Only File\uff09\u6301\u4e45\u5316<\/strong><\/p>\n<p>AOF \u5168\u79f0\u662f Append Only File\uff08\u8ffd\u52a0\u6587\u4ef6\uff09\u3002\u5f53 Redis \u5904\u7406\u6bcf\u4e00\u4e2a\u5199\u547d\u4ee4\u90fd\u4f1a\u8bb0\u5f55\u5728 AOF \u6587\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u770b\u505a\u662f\u547d\u4ee4\u65e5\u5fd7\u6587\u4ef6\u3002\u8be5\u65b9\u5f0f\u9700\u8981\u8bbe\u7f6e AOF \u7684\u540c\u6b65\u9009\u9879\uff0c\u56e0\u4e3a\u5bf9\u6587\u4ef6\u8fdb\u884c\u5199\u5165\u5e76\u4e0d\u4f1a\u9a6c\u4e0a\u5c06\u5185\u5bb9\u540c\u6b65\u5230\u78c1\u76d8\u4e0a\uff0c\u800c\u662f\u5148\u5b58\u50a8\u5230\u7f13\u51b2\u533a\u4e2d\uff0c\u540c\u6b65\u9009\u9879\u6709\u4e09\u79cd\u914d\u7f6e\u9879\u9009\u62e9\uff1a<\/p>\n<ul>\n<li><code>always<\/code>\uff1a\u540c\u6b65\u5237\u76d8\uff0c\u53ef\u9760\u6027\u9ad8\uff0c\u4f46\u6027\u80fd\u5f71\u54cd\u8f83\u5927<\/li>\n<li><code>everysec<\/code>\uff1a\u6bcf\u79d2\u5237\u76d8\uff0c\u6027\u80fd\u9002\u4e2d\uff0c\u6700\u591a\u4e22\u5931 1 \u79d2\u7684\u6570\u636e<\/li>\n<li><code>no<\/code>\uff1a\u64cd\u4f5c\u7cfb\u7edf\u63a7\u5236\uff0c\u6027\u80fd\u6700\u597d\uff0c\u53ef\u9760\u6027\u6700\u5dee<\/li>\n<\/ul>\n<p>\u4e3a\u4e86\u89e3\u51b3 AOF \u6587\u4ef6\u4f53\u68c0\u4e0d\u65ad\u589e\u5927\u7684\u95ee\u9898\uff0c\u7528\u6237\u53ef\u4ee5\u5411 Redis \u53d1\u9001 <code>bgrewriteaof<\/code> \u547d\u4ee4\uff0c\u53ef\u4ee5\u5c06 AOF \u6587\u4ef6\u8fdb\u884c\u538b\u7f29\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9\u81ea\u52a8\u89e6\u53d1\uff0c\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u914d\u7f6e<\/p>\n<pre><code class=\"shell\">auto-aof-rewrite-precentage 100\nauto-aof-rewrite-min-zise 64mb<\/code><\/pre>\n<p><strong><em>\u4f18\u70b9<\/em><\/strong><\/p>\n<ol>\n<li>\u5b9e\u73b0\u6301\u4e45\u5316\uff0c\u6570\u636e\u5b89\u5168\uff0cAOF\u6301\u4e45\u5316\u53ef\u4ee5\u914d\u7f6e appendfsync \u5c5e\u6027\u4e3a always\uff0c\u6bcf\u8fdb\u884c\u4e00\u6b21\u547d\u4ee4\u64cd\u4f5c\u5c31\u8bb0\u5f55\u5230AOF\u6587\u4ef6\u4e2d\u4e00\u6b21\uff0c\u6570\u636e\u6700\u591a\u4e22\u5931\u4e00\u6b21<\/li>\n<li>\u901a\u8fc7 append \u6a21\u5f0f\u5199\u6587\u4ef6\uff0c\u5373\u4f7f\u4e2d\u9014\u670d\u52a1\u5668\u5b95\u673a\uff0c\u53ef\u4ee5\u901a\u8fc7 Redis-check-aof \u5de5\u5177\u89e3\u51b3\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898<\/li>\n<li>AOF \u673a\u5236\u7684 rewrite \u6a21\u5f0f\u3002AOF \u6587\u4ef6\u7684\u6587\u4ef6\u5927\u5c0f\u89e6\u78b0\u5230\u4e34\u754c\u70b9\u65f6\uff0crewrite \u6a21\u5f0f\u4f1a\u88ab\u8fd0\u884c\uff0c\u91cd\u5199\u5185\u5b58\u4e2d\u7684\u6240\u6709\u6570\u636e\uff0c\u4ece\u800c\u7f29\u5c0f\u6587\u4ef6\u4f53\u79ef<\/li>\n<\/ol>\n<p><strong><em>\u7f3a\u70b9<\/em><\/strong><\/p>\n<ol>\n<li>AOF \u6587\u4ef6\u5927\uff0c\u901a\u5e38\u6bd4 RDB \u6587\u4ef6\u5927\u5f88\u591a<\/li>\n<li>\u6bd4 RDB \u6301\u4e45\u5316\u542f\u52a8\u6548\u7387\u4f4e\uff0c\u6570\u636e\u96c6\u5927\u7684\u65f6\u5019\u8f83\u4e3a\u660e\u663e<\/li>\n<li>AOF \u6587\u4ef6\u4f53\u79ef\u53ef\u80fd\u8fc5\u901f\u53d8\u5927\uff0c\u9700\u8981\u5b9a\u671f\u6267\u884c\u91cd\u5199\u64cd\u4f5c\u6765\u964d\u4f4e\u6587\u4ef6\u4f53\u79ef<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797346\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>\u65b9\u5f0f1\uff1a\u5b9a\u65f6\u5220\u9664<\/strong><\/p>\n<p>\u5728\u8bbe\u7f6e Key \u7684\u8fc7\u671f\u65f6\u95f4\u7684\u540c\u65f6\uff0c\u4f1a\u521b\u5efa\u4e00\u4e2a\u5b9a\u65f6\u5668 timer\uff0c\u5b9a\u65f6\u5668\u5728 Key \u8fc7\u671f\u65f6\u95f4\u6765\u4e34\u65f6\uff0c\u4f1a\u7acb\u5373\u6267\u884c\u5bf9 Key \u7684\u5220\u9664\u64cd\u4f5c<\/p>\n<p><em>\u7279\u70b9\uff1a<\/em> \u5bf9\u5185\u5b58\u53cb\u597d\uff0c\u5bf9 CPU \u4e0d\u53cb\u597d\u3002\u5b58\u5728\u8f83\u591a\u8fc7\u671f\u952e\u65f6\uff0c\u5229\u7528\u5b9a\u65f6\u5668\u5220\u9664\u8fc7\u671f\u952e\u4f1a\u5360\u7528\u76f8\u5f53\u4e00\u90e8\u5206CPU<\/p>\n<p><strong>\u65b9\u5f0f2\uff1a\u60f0\u6027\u5220\u9664<\/strong><\/p>\n<p>key \u4e0d\u4f7f\u7528\u65f6\u4e0d\u7ba1 key \u8fc7\u4e0d\u8fc7\u671f\uff0c\u53ea\u4f1a\u5728\u6bcf\u6b21\u4f7f\u7528\u7684\u65f6\u5019\u518d\u68c0\u67e5 Key \u662f\u5426\u8fc7\u671f\uff0c\u5982\u679c\u8fc7\u671f\u7684\u8bdd\u5c31\u4f1a\u5220\u9664\u8be5 Key\u3002<\/p>\n<p><em>\u7279\u70b9\uff1a<\/em> \u5bf9 CPU \u53cb\u597d\uff0c\u5bf9\u5185\u5b58\u4e0d\u53cb\u597d\u3002\u4e0d\u4f1a\u82b1\u8d39\u989d\u5916\u7684CPU\u8d44\u6e90\u6765\u68c0\u6d4bKey\u662f\u5426\u8fc7\u671f\uff0c\u4f46\u5982\u679c\u5b58\u5728\u8f83\u591a\u672a\u4f7f\u7528\u4e14\u8fc7\u671f\u7684Key\u65f6\uff0c\u6240\u5360\u7528\u7684\u5185\u5b58\u5c31\u4e0d\u4f1a\u5f97\u5230\u91ca\u653e<\/p>\n<p><strong>\u65b9\u5f0f3\uff1a\u5b9a\u671f\u5220\u9664<\/strong><\/p>\n<p>\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u5c31\u4f1a\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u4e00\u6b21\u68c0\u67e5\uff0c\u5220\u9664\u91cc\u9762\u7684\u8fc7\u671fKey\uff0c\u800c\u68c0\u67e5\u591a\u5c11\u4e2a\u6570\u636e\u5e93\uff0c\u5219\u7531\u7b97\u6cd5\u51b3\u5b9a<\/p>\n<p><em>\u7279\u70b9\uff1a<\/em> \u5b9a\u671f\u5220\u9664\u662f\u5bf9\u4e0a\u9762\u4e24\u79cd\u8fc7\u671f\u7b56\u7565\u7684\u6298\u4e2d\uff0c\u4e5f\u5c31\u662f\u5bf9\u5185\u5b58\u53cb\u597d\u548cCPU\u53cb\u597d\u7684\u6298\u4e2d\u65b9\u6cd5\u3002\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u6267\u884c\u4e00\u6b21\u5220\u9664\u8fc7\u671f\u952e\u4efb\u52a1\uff0c\u5e76\u901a\u8fc7\u9650\u5236\u64cd\u4f5c\u7684\u65f6\u957f\u548c\u9891\u7387\u6765\u51cf\u5c11\u5bf9CPU\u65f6\u95f4\u7684\u5360\u7528\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797347\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<blockquote><p>Redis \u4e3b\u4ece\u540c\u6b65\u5206\u4e3a\u589e\u91cf\u540c\u6b65\u548c\u5168\u91cf\u540c\u6b65Redis \u4f1a\u5148\u5c1d\u8bd5\u8fdb\u884c\u589e\u91cf\u540c\u6b65\uff0c\u5982\u679c\u4e0d\u6210\u529f\u5219\u4f1a\u8fdb\u884c\u5168\u91cf\u540c\u6b65\u3002<\/p><\/blockquote>\n<p><strong>\u589e\u91cf\u540c\u6b65\uff1a<\/strong><\/p>\n<p>Slave \u521d\u59cb\u5316\u540e\u5f00\u59cb\u6b63\u5e38\u5de5\u4f5c\u65f6\u4e3b\u670d\u52a1\u5668\u53d1\u751f\u7684\u5199\u64cd\u4f5c\u540c\u6b65\u5230\u4ece\u670d\u52a1\u5668\u7684\u8fc7\u7a0b\u3002\u589e\u91cf\u540c\u6b65\u7684\u8fc7\u7a0b\u4e3b\u8981\u662f\u4e3b\u670d\u52a1\u5668\u6bcf\u6267\u884c\u4e00\u4e2a\u5199\u547d\u4ee4\u5c31\u4f1a\u5411\u4ece\u670d\u52a1\u5668\u53d1\u9001\u76f8\u540c\u7684\u5199\u547d\u4ee4\u3002<\/p>\n<p><strong>\u5168\u91cf\u540c\u6b65\uff1a<\/strong><\/p>\n<p>Slave \u521d\u59cb\u5316\u65f6\u5b83\u4f1a\u53d1\u9001\u4e00\u4e2a <code>psync<\/code> \u547d\u4ee4\u5230\u4e3b\u670d\u52a1\u5668\uff0c\u5982\u679c\u662f\u7b2c\u4e00\u6b21\u540c\u6b65\uff0c\u4e3b\u670d\u52a1\u5668\u4f1a\u505a\u4e00\u6b21<code>bgsave<\/code>\uff0c\u5e76\u540c\u65f6\u5c06\u540e\u7eed\u7684\u4fee\u6539\u64cd\u4f5c\u8bb0\u5f55\u5230\u5185\u5b58 buffer \u4e2d\uff0c\u5f85 <code>bgsave<\/code> \u5b8c\u6210\u540e\u518d\u5c06 RDB \u6587\u4ef6\u5168\u91cf\u540c\u6b65\u5230\u4ece\u670d\u52a1\u5668\uff0c\u4ece\u670d\u52a1\u5668\u63a5\u6536\u5b8c\u6210\u540e\u4f1a\u5c06 RDB \u5feb\u7167\u52a0\u8f7d\u5230\u5185\u5b58\u7136\u540e\u5199\u5165\u5230\u672c\u5730\u78c1\u76d8\uff0c\u5904\u7406\u5b8c\u6210\u540e\uff0c\u518d\u901a\u77e5\u4e3b\u670d\u52a1\u5668\u5c06\u671f\u95f4\u4fee\u6539\u7684\u64cd\u4f5c\u8bb0\u5f55\u540c\u6b65\u5230\u590d\u5236\u8282\u70b9\u8fdb\u884c\u91cd\u653e\u5c31\u5b8c\u6210\u4e86\u6574\u4e2a\u5168\u91cf\u540c\u6b65\u8fc7\u7a0b\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797348\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5728Redis\u4e2d\uff0c\u6700\u5927\u4f7f\u7528\u5185\u5b58\u5927\u5c0f\u7531Redis.conf\u4e2d\u7684\u53c2\u6570maxmemory\u51b3\u5b9a\uff0c\u9ed8\u8ba4\u503c\u4e3a0\uff0c\u8868\u793a\u4e0d\u9650\u5236\uff0c\u8fd9\u65f6\u5b9e\u9645\u76f8\u5f53\u4e8e\u5f53\u524d\u7cfb\u7edf\u7684\u5185\u5b58\u3002\u4f46\u5982\u679c\u968f\u7740\u6570\u636e\u7684\u589e\u52a0\uff0c\u5982\u679c\u5bf9\u5185\u5b58\u4e2d\u7684\u6570\u636e\u6ca1\u6709\u7ba1\u7406\u673a\u5236\uff0c\u90a3\u4e48\u6570\u636e\u96c6\u5927\u5c0f\u8fbe\u5230\u6216\u8d85\u8fc7\u6700\u5927\u5185\u5b58\u7684\u5927\u5c0f\u65f6\uff0c\u5219\u4f1a\u9020\u6210Redis\u5d29\u6e83\u3002\u56e0\u6b64\u9700\u8981\u5185\u5b58\u6570\u636e\u6dd8\u6c70\u673a\u5236\u3002<\/p>\n<p><strong>\u8bbe\u6709\u8fc7\u671f\u65f6\u95f4<\/strong><\/p>\n<ol>\n<li><code>volatile-lru<\/code>\uff1a\u5c1d\u8bd5\u56de\u6536\u6700\u5c11\u4f7f\u7528\u7684\u952e<\/li>\n<li><code>volatile-random<\/code>\uff1a\u56de\u6536\u968f\u673a\u7684\u952e<\/li>\n<li><code>volatile-ttl<\/code>\uff1a\u4f18\u5148\u56de\u6536\u5b58\u6d3b\u65f6\u95f4\u8f83\u77ed\u7684\u952e<\/li>\n<\/ol>\n<p><strong>\u6ca1\u6709\u8fc7\u671f\u65f6\u95f4<\/strong><\/p>\n<ol>\n<li><code>allkey-lru<\/code>\uff1a\u5c1d\u8bd5\u56de\u6536\u6700\u5c11\u4f7f\u7528\u7684\u952e<\/li>\n<li><code>allkeys-random<\/code>\uff1a\u56de\u6536\u968f\u673a\u7684\u952e<\/li>\n<li><code>noeviction<\/code>\uff1a\u5f53\u5185\u5b58\u8fbe\u5230\u9650\u5236\u5e76\u4e14\u5ba2\u6237\u7aef\u5c1d\u8bd5\u6267\u884c\u65b0\u589e\uff0c\u4f1a\u8fd4\u56de\u9519\u8bef<\/li>\n<\/ol>\n<blockquote>\n<p><em>\u6dd8\u6c70\u7b56\u7565\u7684\u89c4\u5219<\/em><\/p>\n<ul>\n<li>\u5982\u679c\u6570\u636e\u5448\u73b0\u5e42\u5f8b\u5206\u5e03\uff0c\u4e5f\u5c31\u662f\u4e00\u90e8\u5206\u6570\u636e\u8bbf\u95ee\u9891\u7387\u9ad8\uff0c\u4e00\u90e8\u5206\u6570\u636e\u8bbf\u95ee\u9891\u7387\u4f4e\uff0c\u5219\u4f7f\u7528 allKeys-lru<\/li>\n<li>\u5982\u679c\u6570\u636e\u5448\u73b0\u5e73\u7b49\u5206\u5e03\uff0c\u4e5f\u5c31\u662f\u6240\u6709\u7684\u6570\u636e\u8bbf\u95ee\u9891\u7387\u5927\u4f53\u76f8\u540c\uff0c\u5219\u4f7f\u7528 allKeys-random<\/li>\n<li>\u5173\u4e8e lru \u7b56\u7565\uff0cRedis\u4e2d\u5e76\u4e0d\u4f1a\u51c6\u786e\u7684\u5220\u9664\u6240\u6709\u952e\u4e2d\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u952e\uff0c\u800c\u662f\u968f\u673a\u62bd\u53d65\u4e2a\u952e\uff08\u4e2a\u6570\u7531\u53c2\u6570maxmemory-samples\u51b3\u5b9a\uff0c\u9ed8\u8ba4\u503c\u662f5\uff09\uff0c\u5220\u9664\u8fd95\u4e2a\u952e\u4e2d\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u952e\u3002<\/li>\n<\/ul>\n<\/blockquote>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797349\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>\u95ee\u98981\uff1a\u7f13\u5b58\u7a7f\u900f<\/strong><\/p>\n<blockquote><p>\u7f13\u5b58\u7a7f\u900f\u662f\u6307\u7f13\u5b58\u548c\u6570\u636e\u5e93\u4e0a\u90fd\u6ca1\u6709\u7684\u6570\u636e\uff0c\u5bfc\u81f4\u6240\u6709\u8bf7\u6c42\u90fd\u843d\u5230\u6570\u636e\u5e93\u4e0a\uff0c\u9020\u6210\u6570\u636e\u5e93\u77ed\u65f6\u95f4\u5185\u627f\u53d7\u5927\u91cf\u7684\u8bf7\u6c42\u800c\u5bfc\u81f4\u5b95\u673a<\/p><\/blockquote>\n<p><em>\u89e3\u51b3\uff1a<\/em><\/p>\n<ol>\n<li>\u4f7f\u7528\u5e03\u9686\u8fc7\u6ee4\u5668\uff1a\u5c06\u67e5\u8be2\u7684\u53c2\u6570\u90fd\u5b58\u50a8\u5230\u4e00\u4e2a bitmap \u4e2d\uff0c\u5728\u67e5\u8be2\u7f13\u5b58\u524d\uff0c\u5982\u679c bitmap \u5b58\u5728\u5219\u8fdb\u884c\u5e95\u5c42\u7f13\u5b58\u7684\u6570\u636e\u67e5\u8be2\uff0c\u5982\u679c\u4e0d\u5b58\u5728\u5219\u8fdb\u884c\u62e6\u622a\uff0c\u4e0d\u518d\u8fdb\u884c\u7f13\u5b58\u7684\u6570\u636e\u67e5\u8be2<\/li>\n<li>\u7f13\u5b58\u7a7a\u5bf9\u8c61\uff1a\u5982\u679c\u6570\u636e\u5e93\u67e5\u8be2\u7684\u4e3a\u7a7a\uff0c\u5219\u4f9d\u7136\u628a\u8fd9\u4e2a\u6570\u636e\u7f13\u5b58\u5e76\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\uff0c\u5f53\u591a\u6b21\u8bbf\u95ee\u7684\u65f6\u5019\u53ef\u4ee5\u76f4\u63a5\u8fd4\u56de\u7ed3\u679c\uff0c\u907f\u514d\u9020\u6210\u591a\u6b21\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u4f46\u8981\u4fdd\u8bc1\u5f53\u6570\u636e\u5e93\u6709\u6570\u636e\u65f6\u53ca\u65f6\u66f4\u65b0\u7f13\u5b58\u3002<\/li>\n<\/ol>\n<p><strong>\u95ee\u98982\uff1a\u7f13\u5b58\u51fb\u7a7f<\/strong><\/p>\n<blockquote><p>\u7f13\u5b58\u51fb\u7a7f\u662f\u6307\u7f13\u5b58\u4e2d\u6ca1\u6709\u4f46\u6570\u636e\u5e93\u4e2d\u6709\u7684\u6570\u636e\uff08\u4e00\u822c\u662f\u7f13\u5b58\u65f6\u95f4\u5230\u671f\uff09\uff0c\u5c31\u4f1a\u5bfc\u81f4\u6240\u6709\u8bf7\u6c42\u90fd\u843d\u5230\u6570\u636e\u5e93\u4e0a\uff0c\u9020\u6210\u6570\u636e\u5e93\u6bb5\u65f6\u95f4\u5185\u627f\u53d7\u5927\u91cf\u7684\u8bf7\u6c42\u800c\u5b95\u673a<\/p><\/blockquote>\n<p><em>\u89e3\u51b3\uff1a<\/em><\/p>\n<ol>\n<li>\u8bbe\u7f6e\u70ed\u70b9\u6570\u636e\u6c38\u4e0d\u8fc7\u671f<\/li>\n<li>\u53ef\u4ee5\u4f7f\u7528\u4e92\u65a5\u9501\u66f4\u65b0\uff0c\u4fdd\u8bc1\u540c\u4e00\u8fdb\u7a0b\u4e2d\u9488\u5bf9\u540c\u4e00\u4e2a\u6570\u636e\u4e0d\u4f1a\u5e76\u53d1\u8bf7\u6c42\u5230 DB\uff0c\u51cf\u5c0fDB\u7684\u538b\u529b<\/li>\n<li>\u4f7f\u7528\u968f\u673a\u9000\u907f\u65b9\u5f0f\uff0c\u5931\u6548\u65f6\u968f\u673a sleep \u4e00\u4e2a\u5f88\u77ed\u7684\u65f6\u95f4\uff0c\u518d\u6b21\u67e5\u8be2\uff0c\u5982\u679c\u5931\u8d25\u518d\u6267\u884c\u66f4\u65b0<\/li>\n<\/ol>\n<p><strong>\u95ee\u98983\uff1a\u7f13\u5b58\u96ea\u5d29<\/strong><\/p>\n<blockquote><p>\u7f13\u5b58\u96ea\u5d29\u662f\u6307\u5927\u91cf\u7f13\u5b58\u540c\u4e00\u65f6\u95f4\u5185\u5927\u9762\u79ef\u5931\u6548\uff0c\u540e\u9762\u7684\u8bf7\u6c42\u90fd\u4f1a\u843d\u5230\u6570\u636e\u5e93\u4e0a\uff0c\u9020\u6210\u6570\u636e\u5e93\u6bb5\u65f6\u95f4\u65e0\u6cd5\u627f\u53d7\u5927\u91cf\u7684\u8bf7\u6c42\u800c\u5b95\u6389<\/p><\/blockquote>\n<p><em>\u89e3\u51b3\uff1a<\/em><\/p>\n<ol>\n<li>\u5728\u7f13\u5b58\u5931\u6548\u540e\uff0c\u901a\u8fc7\u52a0\u9501\u6216\u8005\u961f\u5217\u6765\u63a7\u5236\u8bfb\u6570\u636e\u5e93\u5199\u7f13\u5b58\u7684\u7ebf\u7a0b\u6570\u91cf\u3002\u6bd4\u5982\u5bf9\u67d0\u4e2aKey\u53ea\u5141\u8bb8\u4e00\u4e2a\u7ebf\u7a0b\u67e5\u8be2\u548c\u5199\u7f13\u5b58\uff0c\u5176\u4ed6\u7ebf\u7a0b\u7b49\u5f85<\/li>\n<li>\u901a\u8fc7\u7f13\u5b58 reload \u673a\u5236\uff0c\u9884\u5148\u53bb\u66f4\u65b0\u7f13\u5b58\uff0c\u5728\u5373\u5c06\u53d1\u751f\u9ad8\u5e76\u53d1\u8bbf\u95ee\u524d\u624b\u52a8\u89e6\u53d1\u52a0\u8f7d\u7f13\u5b58<\/li>\n<li>\u5bf9\u4e8e\u4e0d\u540c\u7684key\u8bbe\u7f6e\u4e0d\u540c\u7684\u8fc7\u671f\u65f6\u95f4\uff0c\u8ba9\u7f13\u5b58\u5931\u6548\u7684\u65f6\u95f4\u70b9\u5c3d\u91cf\u5747\u5300\uff0c\u6bd4\u5982\u6211\u4eec\u53ef\u4ee5\u5728\u539f\u6709\u7684\u5931\u6548\u65f6\u95f4\u57fa\u7840\u4e0a\u589e\u52a0\u4e00\u4e2a\u968f\u673a\u503c\uff0c\u6bd4\u59821~5\u5206\u949f\u968f\u673a\uff0c\u8fd9\u6837\u6bcf\u4e00\u4e2a\u7f13\u5b58\u7684\u8fc7\u671f\u65f6\u95f4\u7684\u91cd\u590d\u7387\u5c31\u4f1a\u964d\u4f4e\u3002<\/li>\n<li>\u8bbe\u7f6e\u4e8c\u7ea7\u7f13\u5b58\uff0c\u6216\u8005\u53cc\u7f13\u5b58\u7b56\u7565\u3002<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797350\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u7f13\u5b58\u964d\u7ea7\uff0c\u5176\u5b9e\u90fd\u5e94\u8be5\u662f\u6307\u670d\u52a1\u964d\u7ea7\u3002\u5728\u8bbf\u95ee\u91cf\u5267\u589e\u3001\u670d\u52a1\u54cd\u5e94\u51fa\u73b0\u95ee\u9898\uff08\u5982\u54cd\u5e94\u5ef6\u8fdf\u6216\u4e0d\u54cd\u5e94\uff09\u6216\u975e\u6838\u5fc3\u670d\u52a1\u5f71\u54cd\u5230\u6838\u5fc3\u6d41\u7a0b\u7684\u6027\u80fd\u7684\u60c5\u51b5\u4e0b\uff0c\u4ecd\u7136\u9700\u8981\u4fdd\u8bc1\u6838\u5fc3\u670d\u52a1\u53ef\u7528\uff0c\u5c3d\u7ba1\u53ef\u80fd\u4e00\u4e9b\u975e\u4e3b\u8981\u670d\u52a1\u4e0d\u53ef\u7528\uff0c\u8fd9\u65f6\u5c31\u53ef\u4ee5\u91c7\u53d6\u670d\u52a1\u964d\u7ea7\u7b56\u7565\u3002<\/p>\n<p>\u670d\u52a1\u964d\u7ea7\u7684\u6700\u7ec8\u76ee\u7684\u662f\u4fdd\u8bc1\u6838\u5fc3\u670d\u52a1\u53ef\u7528\uff0c\u5373\u4f7f\u662f\u6709\u635f\u7684\u3002\u670d\u52a1\u964d\u7ea7\u5e94\u5f53\u4e8b\u5148\u786e\u5b9a\u597d\u964d\u7ea7\u65b9\u6848\uff0c\u786e\u5b9a\u54ea\u4e9b\u670d\u52a1\u662f\u53ef\u4ee5\u964d\u7ea7\u7684\uff0c\u54ea\u4e9b\u670d\u52a1\u662f\u4e0d\u53ef\u964d\u7ea7\u7684\u3002\u6839\u636e\u5f53\u524d\u4e1a\u52a1\u60c5\u51b5\u53ca\u6d41\u91cf\u5bf9\u4e00\u4e9b\u670d\u52a1\u548c\u9875\u9762\u6709\u7b56\u7565\u7684\u964d\u7ea7\uff0c\u4ee5\u6b64\u91ca\u653e\u670d\u52a1\u5668\u8d44\u6e90\u4ee5\u4fdd\u8bc1\u6838\u5fc3\u670d\u52a1\u7684\u6b63\u5e38\u8fd0\u884c\u3002<\/p>\n<p>\u964d\u7ea7\u5f80\u5f80\u4f1a\u6307\u5b9a\u4e0d\u540c\u7684\u7ea7\u522b\uff0c\u9762\u4e34\u4e0d\u540c\u7684\u5f02\u5e38\u7b49\u7ea7\u6267\u884c\u4e0d\u540c\u7684\u5904\u7406\u3002\u6839\u636e\u670d\u52a1\u65b9\u5f0f\uff1a\u53ef\u4ee5\u62d2\u63a5\u670d\u52a1\uff0c\u53ef\u4ee5\u5ef6\u8fdf\u670d\u52a1\uff0c\u4e5f\u53ef\u4ee5\u968f\u673a\u63d0\u4f9b\u670d\u52a1\u3002\u6839\u636e\u670d\u52a1\u8303\u56f4\uff1a\u53ef\u4ee5\u6682\u65f6\u7981\u7528\u67d0\u4e9b\u529f\u80fd\u6216\u7981\u7528\u67d0\u4e9b\u529f\u80fd\u6a21\u5757\u3002\u603b\u4e4b\u670d\u52a1\u964d\u7ea7\u9700\u8981\u6839\u636e\u4e0d\u540c\u7684\u4e1a\u52a1\u9700\u6c42\u91c7\u7528\u4e0d\u540c\u7684\u964d\u7ea7\u7b56\u7565\u3002\u4e3b\u8981\u7684\u76ee\u7684\u5c31\u662f\u670d\u52a1\u867d\u7136\u6709\u635f\u4f46\u662f\u603b\u6bd4\u6ca1\u6709\u597d\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797351\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<ol>\n<li>\u6570\u636e\u5b9e\u65f6\u540c\u6b65\u5931\u6548\u6216\u66f4\u65b0\u3002\u8fd9\u662f\u4e00\u79cd\u589e\u91cf\u4e3b\u52a8\u578b\u7684\u65b9\u6848\uff0c\u80fd\u4fdd\u8bc1\u6570\u636e\u5f3a\u4e00\u81f4\u6027\uff0c\u5728\u6570\u636e\u5e93\u6570\u636e\u66f4\u65b0\u4e4b\u540e\uff0c\u4e3b\u52a8\u8bf7\u6c42\u7f13\u5b58\u66f4\u65b0<\/li>\n<li>\u6570\u636e\u5f02\u6b65\u66f4\u65b0\u3002\u8fd9\u662f\u4e00\u79cd\u589e\u91cf\u88ab\u52a8\u578b\u65b9\u6848\uff0c\u6570\u636e\u4e00\u81f4\u6027\u7a0d\u5f31\uff0c\u6570\u636e\u66f4\u65b0\u4f1a\u6709\u5ef6\u8fdf\uff0c\u66f4\u65b0\u6570\u636e\u5e93\u6570\u636e\u540e\uff0c\u901a\u8fc7\u5f02\u6b65\u65b9\u5f0f\uff0c\u7528\u591a\u7ebf\u7a0b\u65b9\u5f0f\u6216\u6d88\u606f\u961f\u5217\u6765\u5b9e\u73b0\u66f4\u65b0<\/li>\n<li>\u5b9a\u65f6\u4efb\u52a1\u66f4\u65b0\u3002\u8fd9\u662f\u4e00\u79cd\u589e\/\u5168\u91cf\u88ab\u52a8\u578b\u65b9\u6848\uff0c\u901a\u8fc7\u5b9a\u65f6\u4efb\u52a1\u6309\u4e00\u5b9a\u9891\u7387\u8c03\u5ea6\u66f4\u65b0\uff0c\u6570\u636e\u4e00\u81f4\u6027\u6700\u5dee<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797352\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<ol>\n<li>\u76f4\u63a5\u5199\u4e2a\u7f13\u5b58\u5237\u65b0\u9875\u9762\uff0c\u4e0a\u7ebf\u65f6\u624b\u5de5\u64cd\u4f5c<\/li>\n<li>\u6570\u636e\u91cf\u4e0d\u5927\uff0c\u53ef\u4ee5\u5728\u9879\u76ee\u542f\u52a8\u65f6\u81ea\u52a8\u8fdb\u884c\u52a0\u8f7d<\/li>\n<li>\u5b9a\u65f6\u5237\u65b0\u7f13\u5b58<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797353\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<blockquote><p>Sentinel\uff08\u54e8\u5175\uff09\u9002\u7528\u4e8e\u76d1\u63a7 Redis \u96c6\u7fa4\u4e2d Master \u548c Slave \u72b6\u6001\u7684\u5de5\u5177\uff0c\u662fRedis\u7684\u9ad8\u53ef\u7528\u6027\u89e3\u51b3\u65b9\u6848<\/p><\/blockquote>\n<p><strong>\u4e3b\u8981\u4f5c\u7528<\/strong><\/p>\n<ol>\n<li>\u76d1\u63a7\u3002\u54e8\u5175\u4f1a\u4e0d\u65ad\u68c0\u67e5\u7528\u6237\u7684Master\u548cSlave\u662f\u5426\u8fd0\u4f5c\u6b63\u5e38<\/li>\n<li>\u63d0\u9192\u3002\u5f53\u88ab\u76d1\u63a7\u7684\u67d0\u4e2aRedis\u8282\u70b9\u51fa\u73b0\u95ee\u9898\u65f6\uff0c\u54e8\u5175\u53ef\u4ee5\u901a\u8fc7API\u5411\u7ba1\u7406\u5458\u6216\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u53d1\u9001\u901a\u77e5<\/li>\n<li>\u81ea\u52a8\u6545\u969c\u8fc1\u79fb\u3002\u5f53\u4e00\u4e2aMaster\u4e0d\u80fd\u6b63\u5e38\u5de5\u4f5c\u65f6\uff0c\u54e8\u5175\u4f1a\u5f00\u59cb\u4e00\u6b21\u81ea\u52a8\u6545\u969c\u8fc1\u79fb\u64cd\u4f5c\uff0c\u5b83\u4f1a\u5c06\u96c6\u7fa4\u4e2d\u4e00\u4e2aSlave\u63d0\u5347\u4e3a\u65b0\u7684Master\uff0c\u5e76\u8ba9\u5176\u4ed6Slave\u6539\u4e3a\u4e0e\u65b0\u7684Master\u8fdb\u884c\u540c\u6b65\u3002\u5f53\u5ba2\u6237\u7aef\u8bd5\u56fe\u8fde\u63a5\u5931\u8d25\u7684Master\u65f6\uff0c\u96c6\u7fa4\u4e5f\u4f1a\u60f3\u5ba2\u6237\u7aef\u8fd4\u56de\u65b0\u7684Master\u5730\u5740\u3002\u5f53\u4e3b\u4ece\u670d\u52a1\u5668\u5207\u6362\u540e\uff0c\u65b0Master\u7684Redis.conf\uff0cSlave\u7684Redis.conf\u548cSentinel\u7684Redis.conf\u4e09\u8005\u914d\u7f6e\u6587\u4ef6\u90fd\u4f1a\u53d1\u751f\u76f8\u5e94\u7684\u6539\u53d8\u3002<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797354\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>\u95ee\u9898\u80cc\u666f<\/strong><\/p>\n<blockquote><p>Redis \u662f\u57fa\u4e8eTCP\u534f\u8bae\u7684\u8bf7\u6c42\/\u54cd\u5e94\u670d\u52a1\u5668\uff0c\u6bcf\u6b21\u901a\u4fe1\u90fd\u8981\u7ecf\u8fc7TCP\u534f\u8bae\u7684\u4e09\u6b21\u63e1\u624b\uff0c\u6240\u4ee5\u5f53\u9700\u8981\u6267\u884c\u7684\u547d\u4ee4\u8db3\u591f\u590d\u6742\u65f6\uff0c\u4f1a\u4ea7\u751f\u5f88\u5927\u7684\u7f51\u7edc\u5ef6\u8fdf\uff0c\u5e76\u4e14\u7f51\u7edc\u7684\u4f20\u8f93\u65f6\u95f4\u6210\u672c\u548c\u670d\u52a1\u5668\u5f00\u9500\u6ca1\u6709\u8ba1\u5165\u5176\u4e2d\uff0c\u603b\u7684\u5ef6\u8fdf\u53ef\u80fd\u66f4\u5927\u3002<\/p><\/blockquote>\n<p><strong>Pipeline\u89e3\u51b3<\/strong><\/p>\n<ul>\n<li>Pipeline \u4e3b\u8981\u5c31\u662f\u4e3a\u4e86\u89e3\u51b3\u5b58\u5728\u8fd9\u79cd\u60c5\u51b5\u7684\u573a\u666f\uff0c\u4f7f\u7528Pipeline\u6a21\u5f0f\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u4e00\u6b21\u6027\u53d1\u9001\u591a\u4e2a\u547d\u4ee4\uff0c\u65e0\u9700\u7b49\u5f85\u670d\u52a1\u7aef\u8fd4\u56de\uff0c\u8fd9\u6837\u53ef\u4ee5\u5c06\u591a\u6b21I\/O\u5f80\u8fd4\u7684\u65f6\u95f4\u7f29\u77ed\u4e3a\u4e00\u6b21\uff0c\u5927\u5927\u51cf\u5c11\u4e86\u7f51\u7edc\u5f80\u8fd4\u65f6\u95f4\uff0c\u63d0\u9ad8\u4e86\u7cfb\u7edf\u6027\u80fd\u3002<\/li>\n<li>Pipeline \u662f\u57fa\u4e8e\u961f\u5217\u5b9e\u73b0\uff0c\u57fa\u4e8e\u5148\u8fdb\u5148\u51fa\u7684\u539f\u7406\uff0c\u6ee1\u8db3\u4e86\u6570\u636e\u987a\u5e8f\u6027\u3002\u540c\u65f6\u4e00\u6b21\u63d0\u4ea4\u7684\u547d\u4ee4\u5f88\u591a\u7684\u8bdd\uff0c\u961f\u5217\u9700\u8981\u975e\u5e38\u5927\u91cf\u7684\u5185\u5b58\u6765\u7ec4\u7ec7\u8fd4\u56de\u6570\u636e\u5185\u5bb9\uff0c\u5982\u679c\u5927\u91cf\u4f7f\u7528Pipeline\u7684\u8bdd\uff0c\u5e94\u5f53\u5408\u7406\u5206\u6279\u6b21\u63d0\u4ea4\u547d\u4ee4\u3002<\/li>\n<li>Pipeline\u7684\u9ed8\u8ba4\u540c\u6b65\u4e2a\u6570\u4e3a<code>53<\/code>\u4e2a\uff0c\u7d2f\u52a0\u5230 53 \u6761\u6570\u636e\u65f6\u4f1a\u628a\u6570\u636e\u63d0\u4ea4<\/li>\n<\/ul>\n<p><em>\u6ce8\u610f\uff1a<\/em> Redis \u96c6\u7fa4\u4e2d\u4f7f\u7528\u4e0d\u4e86 Pipeline\uff0c\u5bf9\u53ef\u9760\u6027\u8981\u6c42\u5f88\u9ad8\uff0c\u6bcf\u6b21\u64cd\u4f5c\u90fd\u9700\u8981\u7acb\u5373\u83b7\u53d6\u672c\u6b21\u64cd\u4f5c\u7ed3\u679c\u7684\u573a\u666f\u90fd\u4e0d\u9002\u5408\u7528 Pipeline<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797355\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<ol>\n<li>Master \u6700\u597d\u4e0d\u8981\u505a RDB \u6301\u4e45\u5316\uff0c\u56e0\u4e3a\u8fd9\u65f6 save \u547d\u4ee4\u8c03\u5ea6 rdbSave \u51fd\u6570\uff0c\u4f1a\u963b\u585e\u4e3b\u7ebf\u7a0b\u7684\u5de5\u4f5c\uff0c\u5f53\u6570\u636e\u96c6\u6bd4\u8f83\u5927\u65f6\u53ef\u80fd\u9020\u6210\u4e3b\u7ebf\u7a0b\u95f4\u65ad\u6027\u6682\u505c\u670d\u52a1<\/li>\n<li>\u5982\u679c\u6570\u636e\u6bd4\u8f83\u91cd\u8981\uff0c\u5c06\u67d0\u4e2a Slave \u8282\u70b9\u5f00\u542fAOF\u6570\u636e\u5907\u4efd\uff0c\u7b56\u7565\u8bbe\u7f6e\u4e3a\u6bcf\u79d2\u4e00\u6b21<\/li>\n<li>\u4e3a\u4e86\u4e3b\u4ece\u590d\u5236\u901f\u5ea6\u548c\u8fde\u63a5\u7684\u7a33\u5b9a\u6027\uff0cMaster \u548c Slave \u6700\u597d\u5728\u540c\u4e00\u4e2a\u5c40\u57df\u7f51\u4e2d<\/li>\n<li>\u5c3d\u91cf\u907f\u514d\u5728\u8fd0\u884c\u538b\u529b\u5f88\u5927\u7684\u4e3b\u5e93\u4e0a\u589e\u52a0\u4ece\u5e93<\/li>\n<li>\u4e3b\u4ece\u590d\u5236\u4e0d\u8981\u7528\u56fe\u72b6\u7ed3\u6784\uff0c\u7528\u5355\u5411\u94fe\u8868\u7ed3\u6784\u66f4\u4e3a\u7a33\u5b9a\uff0c<code>Mater-&gt;Slave1-&gt;Slave2-&gt;Slave3...<\/code> \u8fd9\u6837\u7684\u7ed3\u6784\u65b9\u4fbf\u89e3\u51b3\u5355\u70b9\u6545\u969c\u95ee\u9898\uff0c\u5b9e\u73b0 Slave \u5bf9 Master \u7684\u66ff\u6362\uff0c\u5982\u679c Master \u5d29\u6e83\uff0c\u53ef\u4ee5\u7acb\u5373\u542f\u7528 Slave1\u66ff\u6362Mater\uff0c\u800c\u5176\u4ed6\u4f9d\u8d56\u5173\u7cfb\u5219\u4fdd\u6301\u4e0d\u53d8\u3002<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797356\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>\u65b9\u5f0f1\uff1a\u5148\u66f4\u65b0\u6570\u636e\u5e93\uff0c\u518d\u66f4\u65b0\u7f13\u5b58<\/strong><\/p>\n<p>\u8fd9\u79cd\u662f\u5e38\u89c4\u7684\u505a\u6cd5\uff0c\u4f46\u662f\u5982\u679c\u66f4\u65b0\u7f13\u5b58\u5931\u8d25\uff0c\u5c06\u4f1a\u5bfc\u81f4\u7f13\u5b58\u662f\u65e7\u6570\u636e\uff0c\u6570\u636e\u5e93\u662f\u65b0\u6570\u636e<\/p>\n<p><strong>\u65b9\u5f0f2\uff1a\u5148\u5220\u9664\u7f13\u5b58\uff0c\u518d\u5199\u5165\u6570\u636e\u5e93<\/strong><\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u80fd\u591f\u89e3\u51b3\u65b9\u5f0f1\u7684\u95ee\u9898\uff0c\u4f46\u662f\u4ec5\u9650\u4e8e\u4f4e\u5e76\u53d1\u7684\u573a\u666f\uff0c\u4e0d\u7136\u5982\u679c\u6709\u65b0\u7684\u8bf7\u6c42\u5728\u5220\u5b8c\u7f13\u5b58\u4e4b\u540e\uff0c\u5199\u6570\u636e\u5e93\u4e4b\u524d\u8fdb\u6765\uff0c\u90a3\u4e48\u7f13\u5b58\u5c31\u4f1a\u9a6c\u4e0a\u66f4\u65b0\u6570\u636e\u5e93\u66f4\u65b0\u4e4b\u524d\u6570\u636e\uff0c\u9020\u6210\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u95ee\u9898<\/p>\n<p><strong>\u65b9\u5f0f3\uff1a\u5ef6\u65f6\u53cc\u5220\u7b56\u7565<\/strong><\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u662f\u5148\u5220\u9664\u7f13\u5b58\uff0c\u7136\u540e\u66f4\u65b0\u6570\u636e\u5e93\uff0c\u6700\u540e\u5ef6\u8fdf\u4e2a\u51e0\u767e\u6beb\u79d2\u518d\u5220\u9664\u7f13\u5b58<\/p>\n<p><strong>\u65b9\u5f0f4\uff1a\u76f4\u63a5\u64cd\u4f5c\u7f13\u5b58\uff0c\u5b9a\u671f\u5199\u5165\u6570\u636e\u5e93<\/strong><\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797357\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<blockquote><p>\u867d\u7136Redis\u7684Transactions \u63d0\u4f9b\u7684\u5e76\u4e0d\u662f\u4e25\u683c\u7684 ACID\u7684\u4e8b\u52a1\uff08\u5982\u4e00\u4e32\u7528EXEC\u63d0\u4ea4\u6267\u884c\u7684\u547d\u4ee4\uff0c\u5982\u679c\u5728\u6267\u884c\u4e2d\u670d\u52a1\u5668\u5b95\u673a\uff0c\u90a3\u4e48\u4f1a\u6709\u4e00\u90e8\u5206\u547d\u4ee4\u6267\u884c\u4e00\u90e8\u5206\u547d\u4ee4\u672a\u6267\u884c\uff09\uff0c\u4f46\u8fd9\u4e9bTransactions\u8fd8\u662f\u63d0\u4f9b\u4e86\u57fa\u672c\u7684\u547d\u4ee4\u6253\u5305\u6267\u884c\u7684\u529f\u80fd\uff08\u5728\u670d\u52a1\u5668\u4e0d\u51fa\u95ee\u9898\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u4e00\u8fde\u4e32\u7684\u547d\u4ee4\u662f\u987a\u5e8f\u5728\u4e00\u8d77\u6267\u884c\u7684\u3002<\/p><\/blockquote>\n<p>Redis \u4e8b\u52a1\u7684\u672c\u8d28\u5c31\u662f\u56db\u4e2a\u539f\u8bed\uff1a<\/p>\n<ol>\n<li><code>multi<\/code>\uff1a\u7528\u4e8e\u5f00\u542f\u4e00\u4e2a\u4e8b\u52a1\uff0c\u5b83\u603b\u662f\u8fd4\u56de OK\uff0c\u5f53 multi \u6267\u884c\u4e4b\u540e\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u7ee7\u7eed\u5411\u670d\u52a1\u5668\u53d1\u9001\u4efb\u610f\u591a\u6761\u547d\u4ee4\uff0c\u8fd9\u4e9b\u547d\u4ee4\u4e0d\u4f1a\u88ab\u7acb\u5373\u6267\u884c\uff0c\u800c\u662f\u653e\u5230\u4e00\u4e2a\u961f\u5217\u4e2d\uff0c\u5f53 exec \u547d\u4ee4\u88ab\u8c03\u7528\u7684\u65f6\u5019\uff0c\u6240\u6709\u961f\u5217d \u547d\u4ee4\u624d\u4f1a\u6267\u884c<\/li>\n<li><code>exec<\/code>\uff1a\u6267\u884c\u6240\u6709\u4e8b\u52a1\u961f\u5217\u5185\u7684\u547d\u4ee4\uff0c\u8fd4\u56de\u4e8b\u52a1\u5185\u6240\u6709\u547d\u4ee4\u7684\u8fd4\u56de\u503c\uff0c\u5f53\u64cd\u4f5c\u88ab\u6253\u65ad\u7684\u65f6\u5019\uff0c\u8fd4\u56de\u7a7a\u503c nil<\/li>\n<li><code>watch<\/code>\uff1a\u662f\u4e00\u4e2a\u4e50\u89c2\u9501\u3002\u53ef\u4ee5\u4e3a redis \u4e8b\u52a1\u63d0\u4f9b CAS \u64cd\u4f5c\uff0c\u53ef\u4ee5\u76d1\u63a7\u4e00\u4e2a\u6216\u591a\u4e2a\u952e\u3002\u4e00\u65e6\u5176\u4e2d\u6709\u4e00\u4e2a\u952e\u88ab\u4fee\u6539\uff08\u5220\u9664\uff09\uff0c\u4e4b\u540e\u7684\u4e8b\u52a1\u5c31\u4e0d\u4f1a\u6267\u884c\uff0c\u76d1\u63a7\u4e00\u76f4\u6301\u7eed\u5230 exec \u547d\u4ee4\u6267\u884c\u4e4b\u540e<\/li>\n<li><code>discard<\/code>\uff1a\u8c03\u7528 discard\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u6e05\u7a7a\u4e8b\u52a1\u961f\u5217\u4e2d\u7684\u547d\u4ee4\uff0c\u5e76\u653e\u5f03\u6267\u884c\u4e8b\u52a1<\/li>\n<\/ol>\n<p>\u4e8b\u52a1\u652f\u6301\u4e00\u6b21\u6267\u884c\u591a\u4e2a\u547d\u4ee4\uff0c\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u7684\u6240\u6709\u547d\u4ee4\u90fd\u4f1a\u88ab\u5e8f\u5217\u5316\u3002\u5728\u4e8b\u52a1\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u6309\u7167\u987a\u5e8f\u4e32\u884c\u5316\u6267\u884c\u961f\u5217\u4e2d\u7684\u547d\u4ee4\uff0c\u5176\u4ed6\u5ba2\u6237\u7aef\u63d0\u4ea4\u7684\u547d\u4ee4\u8bf7\u6c42\u4e0d\u4f1a\u63d2\u5165\u5230\u4e8b\u52a1\u6267\u884c\u547d\u4ee4\u961f\u5217\u4e2d\u3002Redis \u4e0d\u652f\u6301\u56de\u6eda\u4e8b\u52a1\uff0c\u5728\u4e8b\u52a1\u5931\u8d25\u7684\u65f6\u5019\u4e0d\u4f1a\u56de\u6eda\uff0c\u800c\u662f\u7ee7\u7eed\u6267\u884c\u4f59\u4e0b\u7684\u547d\u4ee4\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797358\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>\u65b9\u5f0f1\uff1aCluster 3.0<\/strong><\/p>\n<p>\u8fd9\u662fRedis \u81ea\u5e26\u7684\u96c6\u7fa4\u529f\u80fd\uff0c\u5b83\u91c7\u7528\u7684\u5206\u5e03\u5f0f\u7b97\u6cd5\u662f\u54c8\u5e0c\u69fd\uff0c\u800c\u4e0d\u662f\u4e00\u81f4\u6027Hash\u3002\u652f\u6301\u4e3b\u4ece\u7ed3\u6784\uff0c\u53ef\u4ee5\u6269\u5c55\u591a\u4e2a\u4ece\u670d\u52a1\u5668\uff0c\u5f53\u4e3b\u8282\u70b9\u6302\u4e86\u53ef\u4ee5\u5f88\u5feb\u5207\u6362\u5230\u4e00\u4e2a\u4ece\u8282\u70b9\u4f5c\u4e3b\u8282\u70b9\uff0c\u7136\u540e\u5176\u4ed6\u4ece\u8282\u70b9\u90fd\u4f1a\u5207\u6362\u8bfb\u53d6\u6700\u65b0\u7684\u4e3b\u8282\u70b9\u3002<\/p>\n<p><strong>\u65b9\u5f0f2\uff1aTwemproxy<\/strong><\/p>\n<p>Twitter \u5f00\u6e90\u7684\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u540e\u7aef\u4ee3\u7406\u3002\u53ef\u4ee5\u7ba1\u7406 Redis \u6216 Memcache \u96c6\u7fa4\u3002\u76f8\u5bf9\u4e8e Redis \u96c6\u7fa4\u6765\u8bf4\uff0c\u6613\u4e8e\u7ba1\u7406\u3002\u5b83\u7684\u4f7f\u7528\u65b9\u6cd5\u548cRedis\u96c6\u7fa4\u6ca1\u6709\u4efb\u4f55\u533a\u522b\uff0c\u53ea\u9700\u8981\u8bbe\u7f6e\u591a\u4e2aRedis\u5b9e\u4f8b\u540e\uff0c\u5728\u672c\u9700\u8981\u8fde\u63a5 Redis \u7684\u5730\u65b9\u6539\u4e3a\u8fde\u63a5 Twemproxy \uff0c\u5b83\u5c31\u4f1a\u4ee5\u4e00\u4e2a\u4ee3\u7406\u7684\u8eab\u4efd\u63a5\u6536\u8bf7\u6c42\u5e76\u4f7f\u7528\u4e00\u81f4\u6027Hash\u7b97\u6cd5\uff0c\u5c06\u8bf7\u6c42\u8fde\u63a5\u5230\u5177\u4f53\u7684Redis\u8282\u70b9\u4e0a\uff0c\u5c06\u7ed3\u679c\u518d\u8fd4\u56deTwemproxy\u3002\u5bf9\u4e8e\u5ba2\u6237\u7aef\u6765\u8bf4\uff0cTwemproxy \u76f8\u5f53\u4e8e\u662f\u7f13\u5b58\u6570\u636e\u5e93\u7684\u603b\u5165\u53e3\uff0c\u5b83\u4e0d\u9700\u8981\u77e5\u9053\u540e\u7aef\u5982\u4f55\u90e8\u7f72\u7684\u3002Twemproxy \u4f1a\u68c0\u6d4b\u4e0e\u6bcf\u4e2a\u8282\u70b9\u7684\u8fde\u63a5\u662f\u5426\u6b63\u5e38\uff0c\u5982\u679c\u5b58\u5728\u5f02\u5e38\u8282\u70b9\u5c31\u4f1a\u5c06\u5176\u5254\u9664\uff0c\u7b49\u4e00\u6bb5\u65f6\u95f4\u540e\uff0cTwemproxy \u8fd8\u4f1a\u518d\u6b21\u5c1d\u8bd5\u8fde\u63a5\u88ab\u5254\u9664\u7684\u8282\u70b9\u3002<\/p>\n<p><strong>\u65b9\u5f0f3\uff1aCodis<\/strong><\/p>\n<p>\u5b83\u662f\u4e00\u4e2a Redis \u5206\u5e03\u5f0f\u7684\u89e3\u51b3\u65b9\u6cd5\uff0c\u5bf9\u4e8e\u5e94\u7528\u4f7f\u7528 Codis Proxy \u7684\u8fde\u63a5\u548c\u4f7f\u7528Redis\u7684\u670d\u52a1\u6ca1\u6709\u660e\u663e\u533a\u522b\uff0c\u5e94\u7528\u80fd\u591f\u50cf\u4f7f\u7528\u5355\u673a Redis \u4e00\u6837\uff0c\u8ba9 Codis \u5e95\u5c42\u5904\u7406\u8bf7\u6c42\u8f6c\u53d1\uff0c\u5b9e\u73b0\u4e0d\u505c\u673a\u5b9e\u73b0\u6570\u636e\u8fc1\u79fb\u7b49\u5de5\u4f5c\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797359\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<blockquote><p>\u4ec0\u4e48\u662f\u8111\u88c2\u95ee\u9898<\/p><\/blockquote>\n<p>\u8111\u88c2\u95ee\u9898\u901a\u5e38\u662f\u56e0\u4e3a\u7f51\u7edc\u95ee\u9898\u5bfc\u81f4\u7684\u3002\u8ba9 master\u3001slave \u548c sentinel \u4e09\u7c7b\u8282\u70b9\u5904\u4e8e\u4e0d\u540c\u7684\u7f51\u7edc\u5206\u533a\u3002\u6b64\u65f6\u54e8\u5175\u65e0\u6cd5\u611f\u77e5\u5230 master \u7684\u5b58\u5728\uff0c\u4f1a\u5c06 slave \u63d0\u5347\u4e3a master \u8282\u70b9\u3002\u6b64\u65f6\u5c31\u4f1a\u5b58\u5728\u4e24\u4e2a master\uff0c\u5c31\u50cf\u5927\u8111\u5206\u88c2\uff0c\u90a3\u4e48\u539f\u6765\u7684\u5ba2\u6237\u7aef\u5f80\u7ee7\u7eed\u5f80\u65e7\u7684 master \u5199\u5165\u6570\u636e\uff0c\u800c\u65b0\u7684master \u5c31\u4f1a\u4e22\u5931\u8fd9\u4e9b\u6570\u636e<\/p>\n<blockquote><p>\u5982\u4f55\u89e3\u51b3<\/p><\/blockquote>\n<p>\u901a\u8fc7\u914d\u7f6e\u6587\u4ef6\u4fee\u6539\u4e24\u4e2a\u53c2\u6570<\/p>\n<pre><code class=\"xml\">min-slaves-to-write 3  # \u8868\u793a\u8fde\u63a5\u5230 master \u6700\u5c11 slave \u7684\u6570\u91cf\nmin-slaves-max-lag 10  # \u8868\u793aslave\u8fde\u63a5\u5230master\u6700\u5927\u7684\u5ef6\u8fdf\u65f6\u95f4\n--------------------\u65b0\u7248\u672c\u5199\u6cd5-----------------\nmin-replicas-to-write 3\nmin-replicas-max-lag  10<\/code><\/pre>\n<p>\u914d\u7f6e\u8fd9\u4e24\u4e2a\u53c2\u6570\u4e4b\u540e\uff0c\u5982\u679c\u53d1\u751f\u96c6\u7fa4\u8111\u88c2\uff0c\u539f\u5148\u7684master\u8282\u70b9\u63a5\u6536\u5230\u5199\u5165\u8bf7\u6c42\u5c31\u4f1a\u62d2\u7edd\uff0c\u5c31\u4f1a\u51cf\u5c11\u6570\u636e\u540c\u6b65\u4e4b\u540e\u7684\u6570\u636e\u4e22\u5931<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797360\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u4e00\u822c\u4f7f\u7528 <code>List<\/code> \u7ed3\u6784\u4f5c\u4e3a\u961f\u5217\u3002<code>Rpush<\/code> \u751f\u4ea7\u6d88\u606f\uff0c<code>Lpop<\/code> \u6d88\u8d39\u6d88\u606f\u3002\u5f53 <code>Lpop<\/code> \u6ca1\u6709\u6d88\u8d39\u7684\u65f6\u5019\uff0c\u9700\u8981\u9002\u5f53 sleep \u4e00\u4f1a\u518d\u91cd\u8bd5\u3002\u4f46\u662f\u91cd\u590d sleep \u4f1a\u8017\u8d39\u6027\u80fd\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5229\u7528 list \u7684 <code>blpop<\/code> \u6307\u4ee4\uff0c\u5728\u8fd8\u6ca1\u6709\u6d88\u606f\u5230\u6765\u65f6\uff0c\u5b83\u4f1a\u963b\u585e\u76f4\u5230\u6d88\u606f\u5230\u6765\u3002<\/p>\n<p>\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528 <code>pub\/sub<\/code> \u4e3b\u9898\u8ba2\u9605\u8005\u6a21\u5f0f\uff0c\u5b9e\u73b0 1\uff1aN \u7684\u6d88\u8d39\u961f\u5217\uff0c\u4f46\u662f\u5728\u6d88\u8d39\u8005\u4e0b\u7ebf\u7684\u65f6\u5019\uff0c\u751f\u4ea7\u7684\u6d88\u606f\u4f1a\u4e22\u5931<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797361\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 <code>zset<\/code> \u7ed3\u6784\uff0c\u53ef\u4ee5\u62ff\u65f6\u95f4\u6233\u4f5c\u4e3a score\uff0c\u6d88\u606f\u7684\u5185\u5bb9\u4f5c\u4e3akey\uff0c\u901a\u8fc7\u8c03\u7528 <code>zadd<\/code> \u6765\u751f\u4ea7\u6d88\u606f\uff0c\u6d88\u8d39\u8005\u4f7f\u7528 <code>zrangebyscore<\/code> \u6307\u4ee4\u8f6e\u8be2\u83b7\u53d6 N \u79d2\u4e4b\u524d\u7684\u6570\u636e\u8fdb\u884c\u5904\u7406<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797362\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>Redis Cluster\u63d0\u4f9b\u4e86\u81ea\u52a8\u5c06\u6570\u636e\u5206\u6563\u5230\u5404\u4e2a\u4e0d\u540c\u8282\u70b9\u7684\u80fd\u529b\uff0c\u4f46\u91c7\u7528\u7684\u7b56\u7565\u5e76\u4e0d\u662f\u4e00\u81f4\u6027Hash\uff0c\u800c\u662f\u54c8\u5e0c\u69fd\u3002Redis \u96c6\u7fa4\u5c06\u6574\u4e2aKey\u7684\u6570\u503c\u57df\u5206\u621016384\u4e2a\u54c8\u5e0c\u69fd\uff0c\u6bcf\u4e2aKey\u901a\u8fc7 CRC16\u68c0\u9a8c\u540e\u5bf916384\u9a71\u9b54\u6765\u51b3\u5b9a\u653e\u7f6e\u5230\u90a3\u4e2a\u69fd\u4e2d\uff0c\u96c6\u7fa4\u7684\u6bcf\u4e2a\u8282\u70b9\u90fd\u8d1f\u8d23\u5176\u4e2d\u4e00\u90e8\u5206\u7684\u54c8\u5e0c\u69fd\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797363\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>1\u3001\u6570\u636e\u7f13\u5b58<\/strong><\/p>\n<p>\u7ecf\u5178\u7684\u573a\u666f\uff0c\u73b0\u5728\u51e0\u4e4e\u662f\u6240\u6709\u4e2d\u5927\u578b\u7f51\u7ad9\u90fd\u5728\u7528\u7684\u63d0\u5347\u624b\u6bb5\uff0c\u5408\u7406\u5730\u5229\u7528\u7f13\u5b58\u80fd\u591f\u63d0\u5347\u7f51\u7ad9\u8bbf\u95ee\u901f\u5ea6<\/p>\n<p><strong>2\u3001\u6392\u884c\u699c<\/strong><\/p>\n<p>\u53ef\u4ee5\u501f\u52a9Redis\u63d0\u4f9b\u7684\u6709\u5e8f\u96c6\u5408\uff08<code>sorted set<\/code>\uff09\u80fd\u529b\u5b9e\u73b0\u6392\u884c\u699c\u7684\u529f\u80fd<\/p>\n<p><strong>3\u3001\u8ba1\u6570\u5668<\/strong><\/p>\n<p>\u53ef\u4ee5\u501f\u52a9Redis\u63d0\u4f9b\u7684 <code>incr<\/code> \u547d\u4ee4\u6765\u5b9e\u73b0\u8ba1\u6570\u5668\u529f\u80fd\uff0c\u56e0\u4e3a\u662f\u5355\u7ebf\u7a0b\u7684\u539f\u5b50\u64cd\u4f5c\uff0c\u4fdd\u8bc1\u4e86\u7edf\u8ba1\u4e0d\u4f1a\u51fa\u9519\uff0c\u800c\u4e14\u901f\u5ea6\u5feb<\/p>\n<p><strong>4\u3001\u5206\u5e03\u5f0fsession\u5171\u4eab<\/strong><\/p>\n<p>\u96c6\u7fa4\u6a21\u5f0f\u4e0b\uff0c\u53ef\u4ee5\u57fa\u4e8e Redis \u5b9e\u73b0 session \u5171\u4eab<\/p>\n<p><strong>5\u3001\u5206\u5e03\u5f0f\u9501<\/strong><\/p>\n<p>\u5728\u5206\u5e03\u5f0f\u67b6\u6784\u4e2d\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u5e76\u53d1\u8bbf\u95ee\u65f6\u64cd\u4f5c\u7684\u539f\u5b50\u6027\uff0c\u53ef\u4ee5\u5229\u7528Redis\u6765\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u529f\u80fd<\/p>\n<p><strong>6\u3001\u6700\u65b0\u5217\u8868<\/strong><\/p>\n<p>\u53ef\u4ee5\u501f\u52a9Redis\u5217\u8868\u7ed3\u6784\uff0c<code>LPUSH<\/code>\u3001<code>LPOP<\/code>\u3001<code>LTRIM<\/code>\u7b49\u547d\u4ee4\u6765\u5b8c\u6210\u5185\u5bb9\u7684\u67e5\u8be2<\/p>\n<p><strong>7\u3001\u4f4d\u64cd\u4f5c<\/strong><\/p>\n<p>\u53ef\u4ee5\u501f\u52a9Redis\u4e2d <code>setbit<\/code>\u3001<code>getbit<\/code>\u3001<code>bitcount<\/code> \u7b49\u547d\u4ee4\u6765\u5b8c\u6210\u6570\u91cf\u4e0a\u5343\u4e07\u751a\u81f3\u4e0a\u4ebf\u7684\u573a\u666f\u4e0b\uff0c\u5b9e\u73b0\u7528\u6237\u6d3b\u8dc3\u5ea6\u7edf\u8ba1<\/p>\n<p><strong>8\u3001\u6d88\u606f\u961f\u5217<\/strong><\/p>\n<p>Redis \u63d0\u4f9b\u4e86\u53d1\u5e03\uff08<code>Publish<\/code>\uff09\u4e0e\u8ba2\u9605\uff08<code>Subscribe<\/code>\uff09\u4ee5\u53ca\u963b\u585e\u961f\u5217\u80fd\u529b\uff0c\u80fd\u591f\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u6d88\u606f\u961f\u5217\u7cfb\u7edf<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797364\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong>\u65b9\u5f0f1\uff1aSet \u7ed3\u6784<\/strong><\/p>\n<p>\u4ee5\u65e5\u671f\u4e3a key\uff0c\u4ee5\u7528\u6237 ID\uff08\u5bf9\u5e94\u6570\u636e\u5e93\u7684 Primary Id\uff09\u7ec4\u6210\u7684\u96c6\u5408\u4e3a value<\/p>\n<ul>\n<li>\u67e5\u8be2\u67d0\u4e2a\u7528\u6237\u7684\u7b7e\u5230\u72b6\u6001 <code>sismember key member<\/code><\/li>\n<li>\u63d2\u5165\u7b7e\u5230\u72b6\u6001 <code>sadd key member<\/code><\/li>\n<li>\u7edf\u8ba1\u67d0\u5929\u7528\u6237\u7684\u7b7e\u5230\u4eba\u6570 <code>scard key<\/code><\/li>\n<\/ul>\n<h5>2\u3001bitMap \u7ed3\u6784<\/h5>\n<p>Key\u7684\u683c\u5f0f\u4e3a<code>u:sign:uid:yyyyMM<\/code>\uff0cValue\u5219\u91c7\u7528\u957f\u5ea6\u4e3a4\u4e2a\u5b57\u8282\uff0832\u4f4d\uff09\u7684\u4f4d\u56fe\uff08\u6700\u5927\u6708\u4efd\u53ea\u670931\u5929\uff09\u3002\u4f4d\u56fe\u7684\u6bcf\u4e00\u4f4d\u4ee3\u8868\u4e00\u5929\u7684\u7b7e\u5230\uff0c1\u8868\u793a\u5df2\u7b7e\uff0c0\u8868\u793a\u672a\u7b7e\u3002<\/p>\n<pre><code class=\"shell\"># \u7528\u62372\u670817\u53f7\u7b7e\u5230\nSETBIT u:sign:1000:201902 16 1 # \u504f\u79fb\u91cf\u662f\u4ece0\u5f00\u59cb\uff0c\u6240\u4ee5\u8981\u628a17\u51cf1\n\n# \u68c0\u67e52\u670817\u53f7\u662f\u5426\u7b7e\u5230\nGETBIT u:sign:1000:201902 16 # \u504f\u79fb\u91cf\u662f\u4ece0\u5f00\u59cb\uff0c\u6240\u4ee5\u8981\u628a17\u51cf1\n\n# \u7edf\u8ba12\u6708\u4efd\u7684\u7b7e\u5230\u6b21\u6570\nBITCOUNT u:sign:1000:201902\n\n# \u83b7\u53d62\u6708\u4efd\u524d28\u5929\u7684\u7b7e\u5230\u6570\u636e\nBITFIELD u:sign:1000:201902 get u28 0\n\n# \u83b7\u53d62\u6708\u4efd\u9996\u6b21\u7b7e\u5230\u7684\u65e5\u671f\nBITPOS u:sign:1000:201902 1 # \u8fd4\u56de\u7684\u9996\u6b21\u7b7e\u5230\u7684\u504f\u79fb\u91cf\uff0c\u52a0\u4e0a1\u5373\u4e3a\u5f53\u6708\u7684\u67d0\u4e00\u5929<\/code><\/pre>\n<p><strong><em>\u4e24\u8005\u5bf9\u6bd4<\/em><\/strong><\/p>\n<ol>\n<li>\u4f7f\u7528 set \u7684\u65b9\u5f0f\u6240\u5360\u7528\u7684\u5185\u5b58\u53ea\u4e0e\u6570\u91cf\u76f8\u5173\uff0c\u548c\u5b58\u50a8\u54ea\u4e9b ID \u65e0\u5173<\/li>\n<li>\u4f7f\u7528 bitmap \u7684\u65b9\u5f0f\u6240\u5360\u7528\u7684\u5185\u5b58\u4e0e\u6570\u91cf\u6ca1\u6709\u7edd\u5bf9\u7684\u5173\u7cfb\uff0c\u800c\u662f\u4e0e\u6700\u9ad8\u4f4d\u6709\u5173\uff0c\u6bd4\u5982\u5047\u8bbe ID \u4e3a 500 W\u7684\u7528\u6237\u7b7e\u5230\u4e86\uff0c\u90a3\u4e48\u4ece 1~4999999 \u7528\u6237\u4e0d\u7ba1\u662f\u5426\u7b7e\u5230\uff0c\u6240\u5360\u7528\u7684\u5185\u5b58\u90fd\u662f 500 w\u4e2abit\uff0c\u8fd9\u8fb9\u662f\u6700\u574f\u7684\u60c5\u51b5<\/li>\n<li>\u4f7f\u7528 bitmap \u6700\u5927\u53ef\u4ee5\u5b58\u50a8 2^32-1\u4e5f\u5c31\u662f 512M \u6570\u636e<\/li>\n<li>\u4f7f\u7528 bitmap \u53ea\u9002\u7528\u5b58\u50a8\u53ea\u6709\u4e24\u4e2a\u72b6\u6001\u7684\u6570\u636e\uff0c\u6bd4\u5982\u7528\u6237\u7b7e\u5230\uff0c\u8d44\u6e90\uff08\u89c6\u9891\u3001\u6587\u7ae0\u3001\u5546\u54c1\uff09\u7684\u5df2\u8bfb\u6216\u672a\u8bfb\u72b6\u6001<\/li>\n<\/ol>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797365\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>Redis\u4e2d ZSet \u662f\u9009\u62e9\u4f7f\u7528 <code>\u8df3\u8868<\/code> \u800c\u4e0d\u662f\u7ea2\u9ed1\u6811<\/p>\n<blockquote><p>\u4ec0\u4e48\u662f\u8df3\u8868<\/p><\/blockquote>\n<ul>\n<li>\u8df3\u8868\u662f\u4e00\u4e2a\u968f\u673a\u5316\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b9e\u8d28\u4e0a\u5c31\u662f\u4e00\u79cd\u53ef\u4ee5\u8fdb\u884c\u4e8c\u5206\u67e5\u627e\u7684\u6709\u5e8f\u94fe\u8868\u3002<\/li>\n<li>\u8df3\u8868\u5728\u539f\u6709\u7684\u6709\u5e8f\u94fe\u8868\u4e0a\u589e\u52a0\u4e86\u591a\u7ea7\u7d22\u5f15\uff0c\u901a\u8fc7\u7d22\u5f15\u6765\u5b9e\u73b0\u5feb\u901f\u67e5\u627e<\/li>\n<li>\u8df3\u8868\u4e0d\u4ec5\u80fd\u63d0\u9ad8\u641c\u7d22\u6027\u80fd\uff0c\u540c\u65f6\u4e5f\u53ef\u4ee5\u63d0\u9ad8\u63d2\u5165\u548c\u5220\u9664\u64cd\u4f5c\u7684\u6027\u80fd<\/li>\n<\/ul>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000042797366\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><strong><em>\u603b\u7ed3\uff1a<\/em><\/strong><\/p>\n<ol>\n<li>\u8df3\u8868\u662f\u53ef\u4ee5\u5b9e\u73b0\u4e8c\u5206\u67e5\u627e\u7684\u6709\u5e8f\u94fe\u8868<\/li>\n<li>\u6bcf\u4e2a\u5143\u7d20\u63d2\u5165\u65f6\u968f\u673a\u751f\u6210\u5b83\u7684 level<\/li>\n<li>\u6700\u5e95\u5c42\u5305\u542b\u6240\u6709\u7684\u5143\u7d20<\/li>\n<li>\u5982\u679c\u4e00\u4e2a\u5143\u7d20\u51fa\u73b0\u5728 level(x)\uff0c\u90a3\u4e48\u5b83\u80af\u5b9a\u51fa\u73b0\u5728 x \u4ee5\u4e0b\u7684 level \u4e2d<\/li>\n<li>\u6bcf\u4e2a\u7d22\u5f15\u8282\u70b9\u5305\u542b\u4e24\u4e2a\u6307\u9488\uff0c\u4e00\u4e2a\u5411\u4e0b\uff0c\u4e00\u4e2a\u5411\u53f3<\/li>\n<li>\u8df3\u8868\u67e5\u8be2\u3001\u63d2\u5165\u3001\u5220\u9664\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(log n)\uff0c\u4e0e\u5e73\u8861\u4e8c\u53c9\u6811\u63a5\u8fd1<\/li>\n<\/ol>\n<blockquote><p>\u4e3a\u4ec0\u4e48\u4e0d\u9009\u62e9\u7ea2\u9ed1\u6811\u6765\u5b9e\u73b0<\/p><\/blockquote>\n<p>\u9996\u5148\u6765\u5206\u6790\u4e0b Redis \u7684\u6709\u5e8f\u96c6\u5408\u652f\u6301\u7684\u64cd\u4f5c\uff1a<\/p>\n<ol>\n<li>\u63d2\u5165\u5143\u7d20<\/li>\n<li>\u5220\u9664\u5143\u7d20<\/li>\n<li>\u67e5\u627e\u5143\u7d20<\/li>\n<li>\u6709\u5e8f\u8f93\u51fa\u6240\u6709\u5143\u7d20<\/li>\n<li>\u67e5\u627e\u533a\u95f4\u5185\u7684\u6240\u6709\u5143\u7d20<\/li>\n<\/ol>\n<p>\u5176\u4e2d\u524d 4 \u9879\u7ea2\u9ed1\u6811\u90fd\u53ef\u4ee5\u5b8c\u6210\uff0c\u4e14\u65f6\u95f4\u590d\u6742\u5ea6\u4e0e\u8df3\u8868\u4e00\u81f4\uff0c\u4f46\u662f\u6700\u540e\u4e00\u4e2a\u7ea2\u9ed1\u6811\u7684\u6548\u7387\u5c31\u6ca1\u6709\u8df3\u8868\u9ad8\u4e86\u3002\u5728\u8df3\u8868\u4e2d\uff0c\u8981\u67e5\u627e\u533a\u95f4\u7684\u5143\u7d20\uff0c\u53ea\u8981\u5b9a\u4f4d\u5230\u4e24\u4e2a\u533a\u95f4\u7aef\u70b9\u5728\u6700\u4f4e\u5c42\u7ea7\u7684\u4f4d\u7f6e\uff0c\u7136\u540e\u6309\u987a\u5e8f\u904d\u5386\u5143\u7d20\u5c31\u53ef\u4ee5\u4e86\uff0c\u975e\u5e38\u9ad8\u6548\u3002<\/p>\n<hr>\n<p>\u597d\u4e86\uff0c\u4ee5\u4e0a\u4fbf\u662f\u672c\u7bc7\u7684\u6240\u6709\u5185\u5bb9\uff0c\u5982\u679c\u89c9\u5f97\u5bf9\u4f60\u6709\u5e2e\u52a9\u7684\u5c0f\u4f19\u4f34\u4e0d\u59a8\u70b9\u4e2a\u5173\u6ce8\u505a\u4e2a\u4f34\uff0c\u4fbf\u662f\u5bf9\u5c0f\u83dc\u6700\u5927\u7684\u652f\u6301\u3002\u4e0d\u8981\u7a7a\u8c08\uff0c\u4e0d\u8981\u8d2a\u61d2\uff0c\u548c\u5c0f\u83dc\u4e00\u8d77\u505a\u4e2a<code>\u5439\u7740\u725bX\u505a\u67b6\u6784<\/code>\u7684\u7a0b\u5e8f\u733f\u5427~ \u54b1\u4eec\u4e0b\u6587\u518d\u89c1\uff01<\/p>\n<blockquote>\n<p>\u4eca\u5929\u7684\u4f60\u591a\u52aa\u529b\u4e00\u70b9\uff0c\u660e\u5929\u7684\u4f60\u5c31\u80fd\u5c11\u8bf4\u4e00\u53e5\u6c42\u4eba\u7684\u8bdd\uff01<\/p>\n<p><em>\u6211\u662f\u5c0f\u83dc\uff0c\u4e00\u4e2a\u548c\u4f60\u4e00\u8d77\u53d8\u5f3a\u7684\u7537\u4eba\u3002<\/em> <code>\ud83d\udc8b<\/code><\/p>\n<p>\u5fae\u4fe1\u516c\u4f17\u53f7\u5df2\u5f00\u542f\uff0c<strong>\u83dc\u519c\u66f0<\/strong>\uff0c\u6ca1\u5173\u6ce8\u7684\u540c\u5b66\u4eec\u8bb0\u5f97\u5173\u6ce8\u54e6\uff01<\/p>\n<\/blockquote>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000042797332\">https:\/\/segmentfault.com\/a\/1190000042797332<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5927\u5bb6\u597d\uff0c\u8fd9\u91cc\u662f \u83dc\u519c\u66f0\uff0c\u6b22\u8fce\u6765\u5230\u6211\u7684\u9891\u9053\u3002 \u5145\u6ee1\u5bd2\u6c14\u7684\u4e92\u8054\u7f51\u5982\u4f55\u5728\u9762\u8bd5\u4e2d\u8131\u9896\u800c\u51fa\uff0c\u5e73\u65f6\u79ef\u7d2f\u5f88\u91cd\u8981\uff0c\u516b\u80a1\u6587\u66f4\u4e0d\u80fd [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10007047","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10007047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10007047"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10007047\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10007047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10007047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10007047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}