{"id":201135,"date":"2025-05-10T10:25:29","date_gmt":"2025-05-10T02:25:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201135\/"},"modified":"2025-05-10T10:25:29","modified_gmt":"2025-05-10T02:25:29","slug":"%e6%b5%85%e8%b0%88redis%e7%9a%84%e5%bc%82%e6%ad%a5%e6%9c%ba%e5%88%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201135\/","title":{"rendered":"\u6d45\u8c08Redis\u7684\u5f02\u6b65\u673a\u5236"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u6d45\u8c08Redis\u7684\u5f02\u6b65\u673a\u5236<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929golang\u5b66\u4e60\u7f51\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300a\u6d45\u8c08Redis\u7684\u5f02\u6b65\u673a\u5236\u300b\uff0c\u804a\u804aRedis\u5f02\u6b65\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p>Redis \u5185\u90e8\u7684\u963b\u585e\u5f0f\u64cd\u4f5c\uff1a<\/p>\n<ul>\n<li>CPU \u6838\u548c NUMA \u67b6\u6784\u7684\u5f71\u54cd\uff1b<\/li>\n<li>Redis \u5173\u952e\u7cfb\u7edf\u914d\u7f6e\uff1b<\/li>\n<li>Redis \u5185\u5b58\u788e\u7247\uff1b<\/li>\n<li>Redis \u7f13\u51b2\u533a\u3002<\/li>\n<\/ul>\n<h2>\u4e00\u3001Redis \u7684\u963b\u585e\u70b9<\/h2>\n<p>\u548c Redis \u5b9e\u4f8b\u4ea4\u4e92\u7684\u5bf9\u8c61\uff0c\u4ee5\u53ca\u4ea4\u4e92\u65f6\u4f1a\u53d1\u751f\u7684\u64cd\u4f5c\uff1a<\/p>\n<ul>\n<li>\u5ba2\u6237\u7aef\uff1a\u7f51\u7edc IO\uff0c\u952e\u503c\u5bf9\u589e\u5220\u6539\u67e5\u64cd\u4f5c\uff0c\u6570\u636e\u5e93\u64cd\u4f5c\uff1b<\/li>\n<li>\u78c1\u76d8\uff1a\u751f\u6210 RDB \u5feb\u7167\uff0c\u8bb0\u5f55 AOF \u65e5\u5fd7\uff0cAOF \u65e5\u5fd7\u91cd\u5199\uff1b<\/li>\n<li>\u4e3b\u4ece\u8282\u70b9\uff1a\u4e3b\u5e93\u751f\u6210\u3001\u4f20\u8f93 RDB \u6587\u4ef6\uff0c\u4ece\u5e93\u63a5\u6536 RDB \u6587\u4ef6\u3001\u6e05\u7a7a\u6570\u636e\u5e93\u3001\u52a0\u8f7d RDB \u6587\u4ef6\uff1b<\/li>\n<li>\u5207\u7247\u96c6\u7fa4\u5b9e\u4f8b\uff1a\u5411\u5176\u4ed6\u5b9e\u4f8b\u4f20\u8f93\u54c8\u5e0c\u69fd\u4fe1\u606f\uff0c\u6570\u636e\u8fc1\u79fb\u3002<\/li>\n<\/ul>\n<h3>4 \u7c7b\u4ea4\u4e92\u5bf9\u8c61\u548c\u5177\u4f53\u7684\u64cd\u4f5c\u4e4b\u95f4\u7684\u5173\u7cfb\uff1a<\/h3>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167237371163ae65cf02e7b.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u548c\u5ba2\u6237\u7aef\u4ea4\u4e92\u65f6\u7684\u963b\u585e\u70b9\uff1a<\/strong><\/p>\n<p>\u7f51\u7edc IO \u6709\u65f6\u5019\u4f1a\u6bd4\u8f83\u6162\uff0c\u4f46\u662f Redis \u4f7f\u7528\u4e86 IO \u591a\u8def\u590d\u7528\u673a\u5236\uff0c\u907f\u514d\u4e86\u4e3b\u7ebf\u7a0b\u4e00\u76f4\u5904\u5728\u7b49\u5f85\u7f51\u7edc\u8fde\u63a5\u6216\u8bf7\u6c42\u5230\u6765\u7684\u72b6\u6001\uff0c\u6240\u4ee5\u7f51\u7edc IO <strong>\u4e0d\u662f<\/strong>\u5bfc\u81f4 Redis \u963b\u585e\u7684\u56e0\u7d20\u3002<\/p>\n<p>\u952e\u503c\u5bf9\u7684\u589e\u5220\u6539\u67e5\u64cd\u4f5c\u662f Redis \u548c\u5ba2\u6237\u7aef\u4ea4\u4e92\u7684\u4e3b\u8981\u90e8\u5206\uff0c\u4e5f\u662f Redis \u4e3b\u7ebf\u7a0b\u6267\u884c\u7684\u4e3b\u8981\u4efb\u52a1\u3002\u590d\u6742\u5ea6\u9ad8\u7684\u589e\u5220\u6539\u67e5\u64cd\u4f5c\u80af\u5b9a\u4f1a\u963b\u585e Redis\u3002<\/p>\n<p>\u5224\u65ad\u64cd\u4f5c\u590d\u6742\u5ea6\u9ad8\u4f4e\u7684\u6807\u51c6\uff1a\u770b\u64cd\u4f5c\u7684<strong>\u590d\u6742\u5ea6\u662f\u5426\u4e3a O(N)<\/strong>\u3002<\/p>\n<p>Redis \u7684\u7b2c\u4e00\u4e2a\u963b\u585e\u70b9\uff1a\u96c6\u5408\u5168\u91cf\u67e5\u8be2\u548c\u805a\u5408\u64cd\u4f5c\uff1a<\/p>\n<p>Redis \u4e2d\u6d89\u53ca\u96c6\u5408\u7684\u64cd\u4f5c\u590d\u6742\u5ea6\u901a\u5e38\u4e3a O(N)\uff0c\u4f7f\u7528\u65f6\u9700\u91cd\u89c6\u8d77\u6765\u3002<br \/>\u4f8b\u5982\u96c6\u5408\u5143\u7d20<strong>\u5168\u91cf\u67e5\u8be2<\/strong>\u64cd\u4f5c HGETALL\u3001SMEMBERS\uff0c\u4ee5\u53ca\u96c6\u5408\u7684<strong>\u805a\u5408\u7edf\u8ba1<\/strong>\u64cd\u4f5c\uff0c\u4f8b\u5982\u6c42\u4ea4\u3001\u5e76\u548c\u5dee\u96c6\u3002<\/p>\n<p>Redis \u7684\u7b2c\u4e8c\u4e2a\u963b\u585e\u70b9 :bigkey \u5220\u9664\u64cd\u4f5c<\/p>\n<p>\u96c6\u5408\u81ea\u8eab\u7684\u5220\u9664\u64cd\u4f5c\u540c\u6837\u4e5f\u6709\u6f5c\u5728\u7684\u963b\u585e\u98ce\u9669\u3002\u5220\u9664\u64cd\u4f5c\u7684\u672c\u8d28\u662f\u8981\u91ca\u653e\u952e\u503c\u5bf9\u5360\u7528\u7684\u5185\u5b58\u7a7a\u95f4\u3002 \u91ca\u653e\u5185\u5b58\u53ea\u662f\u7b2c\u4e00\u6b65\uff0c\u4e3a\u4e86\u66f4\u52a0\u9ad8\u6548\u5730\u7ba1\u7406\u5185\u5b58\u7a7a\u95f4\uff0c\u5728\u5e94\u7528\u7a0b\u5e8f\u91ca\u653e\u5185\u5b58\u65f6\uff0c\u64cd\u4f5c\u7cfb\u7edf\u9700\u8981\u628a\u91ca\u653e\u6389\u7684\u5185\u5b58\u5757\u63d2\u5165\u4e00\u4e2a\u7a7a\u95f2\u5185\u5b58\u5757\u7684\u94fe\u8868\uff0c\u4ee5\u4fbf\u540e\u7eed\u8fdb\u884c\u7ba1\u7406\u548c\u518d\u5206\u914d\u3002<\/p>\n<p>\u8fd9\u4e2a\u8fc7\u7a0b\u672c\u8eab\u9700\u8981\u4e00\u5b9a\u65f6\u95f4\uff0c\u800c\u4e14\u4f1a\u963b\u585e\u5f53\u524d\u91ca\u653e\u5185\u5b58\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u5982\u679c\u4e00\u4e0b\u5b50\u91ca\u653e\u4e86\u5927\u91cf\u5185\u5b58\uff0c\u7a7a\u95f2\u5185\u5b58\u5757\u94fe\u8868\u64cd\u4f5c\u65f6\u95f4\u5c31\u4f1a\u589e\u52a0\uff0c\u76f8\u5e94\u5730\u5c31\u4f1a\u9020\u6210 Redis \u4e3b\u7ebf\u7a0b\u7684\u963b\u585e\u3002<\/p>\n<p>\u91ca\u653e\u5927\u91cf\u5185\u5b58\u7684\u65f6\u673a\uff1a\u5728\u5220\u9664\u5927\u91cf\u952e\u503c\u5bf9\u6570\u636e\u7684\u65f6\u5019\uff0c\u5220\u9664\u5305\u542b\u4e86\u5927\u91cf\u5143\u7d20\u7684\u96c6\u5408\uff0c\u4e5f\u79f0\u4e3a <strong>bigkey \u5220\u9664<\/strong>\u3002<\/p>\n<p>\u4e0d\u540c\u5143\u7d20\u6570\u91cf\u7684\u96c6\u5408\u5728\u8fdb\u884c\u5220\u9664\u64cd\u4f5c\u65f6\u6240\u6d88\u8017\u7684\u65f6\u95f4\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167237371163ae65cf5d555.jpg\" class=\"aligncenter\"><\/p>\n<p>\u5f97\u51fa\u4e09\u4e2a\u7ed3\u8bba\uff1a<\/p>\n<ul>\n<li>\u5f53\u5143\u7d20\u6570\u91cf\u4ece 10 \u4e07\u589e\u52a0\u5230 100 \u4e07\u65f6\uff0c4 \u5927\u96c6\u5408\u7c7b\u578b\u7684\u5220\u9664\u65f6\u95f4\u7684\u589e\u957f\u5e45\u5ea6\u4ece 5 \u500d\u4e0a\u5347\u5230\u4e86\u8fd1 20 \u500d\uff1b<\/li>\n<li>\u96c6\u5408\u5143\u7d20\u8d8a\u5927\uff0c\u5220\u9664\u6240\u82b1\u8d39\u7684\u65f6\u95f4\u5c31\u8d8a\u957f\uff1b<\/li>\n<li>\u5f53\u5220\u9664\u6709 100 \u4e07\u4e2a\u5143\u7d20\u7684\u96c6\u5408\u65f6\uff0c\u6700\u5927\u7684\u5220\u9664\u65f6\u95f4\u7edd\u5bf9\u503c\u5df2\u7ecf\u8fbe\u5230\u4e86 1.98s\uff08Hash \u7c7b \u578b\uff09\u3002Redis \u7684\u54cd\u5e94\u65f6\u95f4\u4e00\u822c\u5728\u5fae\u79d2\u7ea7\u522b\uff0c\u4e00\u4e2a\u64cd\u4f5c\u8fbe\u5230\u4e86\u8fd1 2s\uff0c\u4e0d\u53ef\u907f\u514d\u5730\u4f1a\u963b\u585e\u4e3b\u7ebf\u7a0b\u3002<\/li>\n<\/ul>\n<p>Redis \u7684\u7b2c\u4e09\u4e2a\u963b\u585e\u70b9\uff1a\u6e05\u7a7a\u6570\u636e\u5e93<\/p>\n<p>\u65e2\u7136\u9891\u7e41\u5220\u9664\u952e\u503c\u5bf9\u90fd\u662f\u6f5c\u5728\u7684\u963b\u585e\u70b9\u4e86\uff0c\u5728 Redis \u7684\u6570\u636e\u5e93\u7ea7\u522b\u64cd\u4f5c\u4e2d\uff0c\u6e05\u7a7a\u6570\u636e\u5e93\uff08\u4f8b\u5982 FLUSHDB \u548c FLUSHALL \u64cd\u4f5c\uff09\u4e5f\u662f\u4e00\u4e2a\u6f5c\u5728\u7684\u963b\u585e\u98ce\u9669\uff0c\u56e0\u4e3a\u5b83\u6d89\u53ca\u5230\u5220\u9664\u548c\u91ca\u653e\u6240\u6709\u7684\u952e\u503c\u5bf9\u3002<\/p>\n<p>Redis \u7684\u7b2c\u56db\u4e2a\u963b\u585e\u70b9\uff1aAOF \u65e5\u5fd7\u540c\u6b65\u5199<\/p>\n<p>\u78c1\u76d8 IO \u4e00\u822c\u90fd\u662f\u6bd4\u8f83\u8d39\u65f6\u8d39\u529b\u7684\uff0c\u9700\u8981\u91cd\u70b9\u5173\u6ce8\u3002 Redis \u5f00\u53d1\u8005\u65e9\u5df2\u8ba4\u8bc6\u5230\u78c1\u76d8 IO \u4f1a\u5e26\u6765\u963b\u585e\uff0c\u6240\u4ee5\u628a Redis \u8bbe\u8ba1\u4e3a\u91c7\u7528\u5b50\u8fdb\u7a0b\u7684\u65b9\u5f0f\u751f\u6210 RDB \u5feb\u7167\u6587\u4ef6\u3001\u6267\u884c AOF \u65e5\u5fd7\u91cd\u5199\u64cd\u4f5c\u3002\u7531\u5b50\u8fdb\u7a0b\u8d1f\u8d23\u6267\u884c\uff0c\u6162\u901f\u7684\u78c1\u76d8 IO \u5c31\u4e0d\u4f1a\u963b\u585e\u4e3b\u7ebf\u7a0b\u4e86\u3002<\/p>\n<p>Redis \u76f4\u63a5\u8bb0\u5f55 AOF \u65e5\u5fd7\u65f6\uff0c\u4f1a\u6839\u636e\u4e0d\u540c\u7684\u5199\u56de\u7b56\u7565\u5bf9\u6570\u636e\u505a\u843d\u76d8\u4fdd\u5b58\u3002\u4e00\u4e2a\u540c\u6b65\u5199\u78c1\u76d8\u7684\u64cd\u4f5c\u7684\u8017\u65f6\u5927\u7ea6\u662f 1\uff5e2ms\uff0c\u5982\u679c\u6709\u5927\u91cf\u7684\u5199\u64cd\u4f5c\u9700\u8981\u8bb0\u5f55\u5728 AOF \u65e5\u5fd7\u4e2d\uff0c\u5e76\u540c\u6b65\u5199\u56de\u7684\u8bdd\uff0c\u4f1a\u963b\u585e\u4e3b\u7ebf\u7a0b\u3002<\/p>\n<p>Redis \u7684\u7b2c\u4e94\u4e2a\u963b\u585e\u70b9\uff1a\u4ece\u5e93\u52a0\u8f7d RDB \u6587\u4ef6<\/p>\n<p>\u5728\u4e3b\u4ece\u96c6\u7fa4\u4e2d\uff0c\u4e3b\u5e93\u9700\u8981\u751f\u6210 RDB \u6587\u4ef6\uff0c\u5e76\u4f20\u8f93\u7ed9\u4ece\u5e93\u3002<\/p>\n<p>\u4e3b\u5e93\u5728\u590d\u5236\u7684\u8fc7\u7a0b\u4e2d\uff0c<strong>\u521b\u5efa\u548c\u4f20\u8f93 RDB \u6587\u4ef6\u90fd\u662f\u7531\u5b50\u8fdb\u7a0b\u6765\u5b8c\u6210\u7684<\/strong>\uff0c\u4e0d\u4f1a\u963b\u585e\u4e3b\u7ebf\u7a0b\u3002<br \/>\u4f46\u662f\u4ece\u5e93\u5728\u63a5\u6536\u4e86 RDB \u6587\u4ef6\u540e\uff0c\u9700\u8981\u4f7f\u7528 FLUSHDB \u547d\u4ee4\u6e05\u7a7a\u5f53\u524d\u6570\u636e\u5e93\uff0c\u6b63\u597d\u649e\u4e0a\u4e86\u7b2c\u4e09\u4e2a\u963b\u585e\u70b9\u3002<\/p>\n<p>\u4ece\u5e93\u5728\u6e05\u7a7a\u5f53\u524d\u6570\u636e\u5e93\u540e\uff0c\u9700\u8981\u628a RDB \u6587\u4ef6\u52a0\u8f7d\u5230\u5185\u5b58\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u7684\u5feb\u6162\u548c RDB \u6587\u4ef6\u7684\u5927\u5c0f\u5bc6\u5207\u76f8\u5173\uff0cRDB \u6587\u4ef6\u8d8a\u5927\uff0c\u52a0\u8f7d\u8fc7\u7a0b\u8d8a\u6162\u3002<\/p>\n<h3>\u5207\u7247\u96c6\u7fa4\u5b9e\u4f8b\u4ea4\u4e92\u65f6\u7684\u963b\u585e\u70b9<\/h3>\n<p>\u90e8\u7f72 Redis \u5207\u7247\u96c6\u7fa4\u65f6\uff0c\u6bcf\u4e2a Redis \u5b9e\u4f8b\u4e0a\u5206\u914d\u7684\u54c8\u5e0c\u69fd\u4fe1\u606f\u9700\u8981\u5728\u4e0d\u540c\u5b9e\u4f8b\u95f4\u8fdb\u884c\u4f20\u9012\uff0c\u5f53\u9700\u8981\u8fdb\u884c<strong>\u8d1f\u8f7d\u5747\u8861<\/strong>\u6216\u8005\u6709<strong>\u5b9e\u4f8b\u589e\u5220<\/strong>\u65f6\uff0c\u6570\u636e\u4f1a\u5728\u4e0d\u540c\u7684\u5b9e\u4f8b\u95f4\u8fdb\u884c\u8fc1\u79fb\u3002\u4e0d\u8fc7\u54c8\u5e0c\u69fd\u7684\u4fe1\u606f\u91cf\u4e0d\u5927\uff0c\u800c\u6570\u636e\u8fc1\u79fb\u662f\u6e10\u8fdb\u5f0f\u6267\u884c\u7684\uff0c\u8fd9\u4e24\u7c7b\u64cd\u4f5c\u5bf9 Redis \u4e3b\u7ebf\u7a0b\u7684\u963b\u585e\u98ce\u9669\u4e0d\u5927\u3002<\/p>\n<p>\u5982\u679c\u4f7f\u7528\u4e86 Redis Cluster \u65b9\u6848\uff0c\u800c\u4e14\u540c\u65f6\u6b63\u597d\u8fc1\u79fb\u7684\u662f bigkey \u7684\u8bdd\uff0c\u5c31\u4f1a\u9020\u6210\u4e3b\u7ebf\u7a0b\u7684\u963b\u585e\uff0c\u56e0\u4e3a Redis Cluster \u4f7f\u7528\u4e86\u540c\u6b65\u8fc1\u79fb\u3002<\/p>\n<p><strong>\u4e94\u4e2a\u963b\u585e\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u96c6\u5408\u5168\u91cf\u67e5\u8be2\u548c\u805a\u5408\u64cd\u4f5c\uff1b<\/li>\n<li>bigkey \u5220\u9664\uff1b<\/li>\n<li>\u6e05\u7a7a\u6570\u636e\u5e93\uff1b<\/li>\n<li>AOF \u65e5\u5fd7\u540c\u6b65\u5199\uff1b<\/li>\n<li>\u4ece\u5e93\u52a0\u8f7d RDB \u6587\u4ef6\u3002<\/li>\n<\/ul>\n<h2>\u4e8c\u3001\u53ef\u4ee5\u5f02\u6b65\u6267\u884c\u7684\u963b\u585e\u70b9<\/h2>\n<p>\u4e3a\u4e86\u907f\u514d\u963b\u585e\u5f0f\u64cd\u4f5c\uff0cRedis \u63d0\u4f9b\u4e86\u5f02\u6b65\u7ebf\u7a0b\u673a\u5236\uff1a<\/p>\n<p>Redis \u4f1a\u542f\u52a8\u4e00\u4e9b\u5b50\u7ebf\u7a0b\uff0c\u7136\u540e\u628a\u4e00\u4e9b\u4efb\u52a1\u4ea4\u7ed9\u8fd9\u4e9b\u5b50\u7ebf\u7a0b\uff0c\u8ba9\u5b83\u4eec\u5728\u540e\u53f0\u5b8c\u6210\uff0c\u800c\u4e0d\u518d\u7531\u4e3b\u7ebf\u7a0b\u6765\u6267\u884c\u8fd9\u4e9b\u4efb\u52a1\u3002\u53ef\u4ee5\u907f\u514d\u963b\u585e\u4e3b\u7ebf\u7a0b\u3002<\/p>\n<p>\u5f02\u6b65\u6267\u884c\u5bf9\u64cd\u4f5c\u7684\u8981\u6c42\uff1a<\/p>\n<p>\u4e00\u4e2a\u80fd\u88ab\u5f02\u6b65\u6267\u884c\u7684\u64cd\u4f5c\u5e76\u4e0d\u662f Redis \u4e3b\u7ebf\u7a0b\u7684\u5173\u952e\u8def\u5f84\u4e0a\u7684\u64cd\u4f5c\uff08\u5ba2\u6237\u7aef\u628a\u8bf7\u6c42\u53d1\u9001\u7ed9 Redis \u540e\uff0c\u7b49\u7740 Redis \u8fd4\u56de\u6570\u636e\u7ed3\u679c\u7684\u64cd\u4f5c\uff09\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167237371163ae65cfefa87.jpg\" class=\"aligncenter\"><\/p>\n<p>\u4e3b\u7ebf\u7a0b\u63a5\u6536\u5230\u64cd\u4f5c 1 \u540e\uff0c\u64cd\u4f5c 1 \u5e76\u4e0d\u7528\u7ed9\u5ba2\u6237\u7aef\u8fd4\u56de\u5177\u4f53\u7684\u6570\u636e\uff0c\u4e3b\u7ebf\u7a0b\u53ef\u4ee5\u628a\u5b83\u4ea4\u7ed9\u540e\u53f0\u5b50\u7ebf\u7a0b\u6765\u5b8c\u6210\uff0c\u540c\u65f6\u53ea\u8981\u7ed9\u5ba2\u6237\u7aef\u8fd4\u56de\u4e00\u4e2a\u201cOK\u201d\u7ed3\u679c\u5c31\u884c\u3002<br \/>\u5728\u5b50\u7ebf\u7a0b\u6267\u884c\u64cd\u4f5c 1 \u7684\u65f6\u5019\uff0c\u5ba2\u6237\u7aef\u53c8\u5411 Redis \u5b9e\u4f8b\u53d1\u9001\u4e86\u64cd\u4f5c 2\uff0c\u5ba2\u6237\u7aef\u662f\u9700\u8981\u4f7f\u7528\u64cd\u4f5c 2 \u8fd4\u56de\u7684\u6570\u636e\u7ed3\u679c\u7684\uff0c\u5982\u679c\u64cd\u4f5c 2 \u4e0d\u8fd4\u56de\u7ed3\u679c\uff0c\u90a3\u4e48\u5ba2\u6237\u7aef\u5c06\u4e00\u76f4\u5904\u4e8e\u7b49\u5f85\u72b6\u6001\u3002<\/p>\n<p>\u64cd\u4f5c 1 \u5c31\u4e0d\u7b97\u5173\u952e\u8def\u5f84\u4e0a\u7684\u64cd\u4f5c\uff0c\u56e0\u4e3a\u5b83\u4e0d\u7528\u7ed9\u5ba2\u6237\u7aef\u8fd4\u56de\u5177\u4f53\u6570\u636e\uff0c\u6240\u4ee5\u53ef\u4ee5\u7531\u540e\u53f0\u5b50\u7ebf\u7a0b\u5f02\u6b65\u6267\u884c\u3002<br \/>\u64cd\u4f5c 2 \u9700\u8981\u628a\u7ed3\u679c\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff0c\u5b83\u5c31\u662f\u5173\u952e\u8def\u5f84\u4e0a\u7684\u64cd\u4f5c\uff0c\u6240\u4ee5\u4e3b\u7ebf\u7a0b\u5fc5\u987b\u7acb\u5373\u628a\u8fd9\u4e2a\u64cd\u4f5c\u6267\u884c\u5b8c\u3002<\/p>\n<ul>\n<li>Redis \u8bfb\u64cd\u4f5c\u662f\u5178\u578b\u7684\u5173\u952e\u8def\u5f84\u64cd\u4f5c\uff0c\u56e0\u4e3a\u5ba2\u6237\u7aef\u53d1\u9001\u4e86\u8bfb\u64cd\u4f5c\u4e4b\u540e\uff0c\u5c31\u4f1a\u7b49\u5f85\u8bfb\u53d6\u7684\u6570\u636e\u8fd4\u56de\uff0c\u4ee5\u4fbf\u8fdb\u884c\u540e\u7eed\u7684\u6570\u636e\u5904\u7406\u3002\u800c Redis \u7684\u7b2c\u4e00\u4e2a\u963b\u585e\u70b9\u201c\u96c6\u5408\u5168\u91cf\u67e5\u8be2 \u548c\u805a\u5408\u64cd\u4f5c\u201d\u90fd\u6d89\u53ca\u5230\u4e86\u8bfb\u64cd\u4f5c\uff0c\u4e0d\u80fd\u8fdb\u884c\u5f02\u6b65\u64cd\u4f5c\u3002<\/li>\n<li>\u5220\u9664\u64cd\u4f5c\u5e76\u4e0d\u9700\u8981\u7ed9\u5ba2\u6237\u7aef\u8fd4\u56de\u5177\u4f53\u7684\u6570\u636e\u7ed3\u679c\uff0c\u4e0d\u7b97\u662f\u5173\u952e\u8def\u5f84\u64cd\u4f5c\u3002\u201cbigkey \u5220\u9664\u201d\u548c\u201c\u6e05\u7a7a\u6570\u636e\u5e93\u201d\u90fd\u662f\u5bf9\u6570\u636e\u505a\u5220\u9664\uff0c\u5e76\u4e0d\u5728\u5173\u952e\u8def\u5f84\u4e0a\u3002\u53ef\u4ee5\u4f7f\u7528\u540e\u53f0\u5b50\u7ebf\u7a0b\u6765\u5f02\u6b65\u6267\u884c\u5220\u9664\u64cd\u4f5c\u3002<\/li>\n<li>\u201cAOF \u65e5\u5fd7\u540c\u6b65\u5199\u201d\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u53ef\u9760\u6027\uff0cRedis \u5b9e\u4f8b\u9700\u8981\u4fdd\u8bc1 AOF \u65e5\u5fd7\u4e2d\u7684\u64cd\u4f5c\u8bb0\u5f55\u5df2\u7ecf\u843d\u76d8\uff0c\u8fd9\u4e2a\u64cd\u4f5c\u867d\u7136\u9700\u8981\u5b9e\u4f8b\u7b49\u5f85\uff0c\u4f46\u5b83\u5e76\u4e0d\u4f1a\u8fd4\u56de\u5177\u4f53\u7684\u6570\u636e\u7ed3\u679c\u7ed9\u5b9e\u4f8b\u3002\u6240\u4ee5\u53ef\u4ee5\u542f\u52a8\u4e00\u4e2a\u5b50\u7ebf\u7a0b\u6765\u6267\u884c AOF \u65e5\u5fd7\u7684\u540c\u6b65\u5199\u3002<\/li>\n<li>\u201c\u4ece\u5e93\u52a0\u8f7d RDB \u6587\u4ef6\u201d\u8981\u60f3\u5bf9\u5ba2\u6237\u7aef\u63d0\u4f9b\u6570\u636e\u5b58\u53d6\u670d\u52a1\uff0c\u5c31\u5fc5\u987b\u628a RDB \u6587\u4ef6\u52a0\u8f7d\u5b8c\u6210\u3002\u8fd9\u4e2a\u64cd\u4f5c\u4e5f\u5c5e\u4e8e\u5173\u952e\u8def\u5f84\u4e0a\u7684\u64cd\u4f5c\uff0c\u5fc5\u987b\u8ba9\u4ece\u5e93\u7684\u4e3b\u7ebf\u7a0b\u6765\u6267\u884c\u3002<\/li>\n<\/ul>\n<p>\u9664\u4e86\u201c\u96c6\u5408\u5168\u91cf\u67e5\u8be2\u548c\u805a\u5408\u64cd\u4f5c\u201d\u548c\u201c\u4ece\u5e93\u52a0\u8f7d RDB \u6587 \u4ef6\u201d\uff0c\u5176\u4ed6\u4e09\u4e2a\u963b\u585e\u70b9\u6d89\u53ca\u7684\u64cd\u4f5c\u90fd\u4e0d\u5728\u5173\u952e\u8def\u5f84\u4e0a\uff0c\u53ef\u4ee5\u4f7f\u7528 Redis \u7684\u5f02\u6b65\u5b50\u7ebf\u7a0b\u673a\u5236\u6765\u5b9e\u73b0 bigkey \u5220\u9664\uff0c\u6e05\u7a7a\u6570\u636e\u5e93\uff0c\u4ee5\u53ca AOF \u65e5\u5fd7\u540c\u6b65\u5199\u3002<\/p>\n<h2>\u4e09\u3001\u5f02\u6b65\u7684\u5b50\u7ebf\u7a0b\u673a\u5236<\/h2>\n<p>Redis \u4e3b\u7ebf\u7a0b\u542f\u52a8\u540e\uff0c\u4f1a\u4f7f\u7528\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7684 pthread_create \u51fd\u6570\u521b\u5efa 3 \u4e2a\u5b50\u7ebf\u7a0b\uff0c\u8d1f\u8d23<strong>AOF \u65e5\u5fd7\u5199\u64cd\u4f5c\u3001\u952e\u503c\u5bf9\u5220\u9664\u3001\u6587\u4ef6\u5173\u95ed<\/strong>\u7684\u5f02\u6b65\u6267\u884c\u3002<\/p>\n<p>\u4e3b\u7ebf\u7a0b\u901a\u8fc7\u4e00\u4e2a\u94fe\u8868\u5f62\u5f0f\u7684\u4efb\u52a1\u961f\u5217\u548c\u5b50\u7ebf\u7a0b\u8fdb\u884c\u4ea4\u4e92\u3002<\/p>\n<p>\u5f53\u6536\u5230\u952e\u503c\u5bf9\u5220\u9664\u548c\u6e05\u7a7a\u6570\u636e\u5e93\u7684\u64cd\u4f5c\u65f6\uff0c\u4e3b\u7ebf\u7a0b\u4f1a\u628a\u8fd9\u4e2a\u64cd\u4f5c\u5c01\u88c5\u6210\u4e00\u4e2a\u4efb\u52a1\uff0c\u653e\u5165\u5230\u4efb\u52a1\u961f\u5217\u4e2d\uff0c\u7136\u540e\u7ed9\u5ba2\u6237\u7aef\u8fd4\u56de\u4e00\u4e2a\u5b8c\u6210\u4fe1\u606f\uff0c\u8868\u660e\u5220\u9664\u5df2\u7ecf\u5b8c\u6210\u3002<\/p>\n<p>\u4f46\u5b9e\u9645\u4e0a\uff0c\u8fd9\u4e2a\u65f6\u5019\u5220\u9664\u8fd8\u6ca1\u6709\u6267\u884c\uff0c\u7b49\u5230\u540e\u53f0\u5b50\u7ebf\u7a0b\u4ece\u4efb\u52a1\u961f\u5217\u4e2d\u8bfb\u53d6\u4efb\u52a1\u540e\uff0c\u624d\u5f00\u59cb\u5b9e\u9645\u5220\u9664\u952e\u503c\u5bf9\uff0c\u5e76\u91ca\u653e\u76f8\u5e94\u7684\u5185\u5b58\u7a7a\u95f4\u3002\u8fd9\u79cd\u5f02\u6b65\u5220\u9664\u4e5f\u79f0\u4e3a<strong>\u60f0\u6027\u5220\u9664<\/strong> \uff08lazy free\uff09\u3002<\/p>\n<p>\u5f53 AOF \u65e5\u5fd7\u914d\u7f6e\u6210 everysec \u9009\u9879\u540e\uff0c\u4e3b\u7ebf\u7a0b\u4f1a\u628a AOF \u5199\u65e5\u5fd7\u64cd\u4f5c\u5c01\u88c5\u6210\u4e00\u4e2a\u4efb\u52a1\uff0c\u4e5f\u653e\u5230\u4efb\u52a1\u961f\u5217\u4e2d\u3002\u540e\u53f0\u5b50\u7ebf\u7a0b\u8bfb\u53d6\u4efb\u52a1\u540e\uff0c\u5f00\u59cb\u81ea\u884c\u5199\u5165 AOF \u65e5\u5fd7\uff0c\u4e3b\u7ebf\u7a0b\u5c31\u4e0d\u7528\u4e00\u76f4\u7b49\u5f85 AOF \u65e5\u5fd7\u5199\u5b8c\u4e86\u3002<\/p>\n<p>Redis \u4e2d\u7684\u5f02\u6b65\u5b50\u7ebf\u7a0b\u6267\u884c\u673a\u5236\uff1a<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20221230\/167237371263ae65d0a0d43.jpg\" class=\"aligncenter\"><\/p>\n<p>\u5f02\u6b65\u7684\u952e\u503c\u5bf9\u5220\u9664\u548c\u6570\u636e\u5e93\u6e05\u7a7a\u64cd\u4f5c\u662f Redis 4.0 \u540e\u63d0\u4f9b\u7684\u529f\u80fd\uff0cRedis \u4e5f\u63d0\u4f9b\u4e86\u65b0\u7684\u547d\u4ee4\u6765\u6267\u884c\u8fd9\u4e24\u4e2a\u64cd\u4f5c\uff1a<\/p>\n<ul>\n<li>\u952e\u503c\u5bf9\u5220\u9664\uff1a\u96c6\u5408\u7c7b\u578b\u4e2d\u6709\u5927\u91cf\u5143\u7d20\uff08\u4f8b\u5982\u6709\u767e\u4e07\u7ea7\u522b\u6216\u5343\u4e07\u7ea7\u522b\u5143\u7d20\uff09\u9700\u8981\u5220\u9664\u65f6\uff0c\u5efa\u8bae\u4f7f\u7528 UNLINK \u547d\u4ee4\uff1b<\/li>\n<li>\u6e05\u7a7a\u6570\u636e\u5e93\uff1a\u53ef\u4ee5\u5728 FLUSHDB \u548c FLUSHALL \u547d\u4ee4\u540e\u52a0\u4e0a ASYNC \u9009\u9879\uff0c\u8ba9\u540e\u53f0\u5b50\u7ebf\u7a0b\u5f02\u6b65\u5730\u6e05\u7a7a\u6570\u636e\u5e93\u3002<\/li>\n<\/ul>\n<pre>FLUSHDB ASYNC \nFLUSHALL AYSNC \n<\/pre>\n<h2>\u603b\u7ed3<\/h2>\n<p>Redis \u5b9e\u4f8b\u8fd0\u884c\u65f6\u7684 4 \u5927\u7c7b\u4ea4\u4e92\u5bf9\u8c61\uff1a<strong>\u5ba2\u6237\u7aef\u3001\u78c1\u76d8\u3001\u4e3b\u4ece\u5e93\u5b9e\u4f8b\u3001 \u5207\u7247\u96c6\u7fa4\u5b9e\u4f8b<\/strong>\u3002<\/p>\n<p>\u57fa\u4e8e\u8fd9 4 \u5927\u7c7b\u4ea4\u4e92\u5bf9\u8c61\u5bfc\u81f4 Redis \u6027\u80fd\u53d7\u635f\u7684 5 \u5927\u963b\u585e\u70b9\uff1a<strong>\u96c6\u5408\u5168\u91cf\u67e5\u8be2\u548c\u805a\u5408\u64cd\u4f5c\u3001bigkey \u5220\u9664\u3001\u6e05\u7a7a\u6570\u636e\u5e93\u3001AOF \u65e5\u5fd7\u540c\u6b65\u5199\u3001\u4ece\u5e93\u52a0\u8f7d RDB \u6587\u4ef6<\/strong>\u3002<\/p>\n<p><strong>bigkey \u5220\u9664\u3001\u6e05\u7a7a\u6570\u636e\u5e93\u3001AOF \u65e5\u5fd7\u540c\u6b65\u5199<\/strong>\u4e0d\u5c5e\u4e8e\u5173\u952e\u8def\u5f84\u64cd\u4f5c\uff0c \u53ef\u4ee5\u4f7f\u7528\u5f02\u6b65\u5b50\u7ebf\u7a0b\u673a\u5236\u6765\u5b8c\u6210\u3002<\/p>\n<p>Redis \u5728\u8fd0\u884c\u65f6\u4f1a\u521b\u5efa\u4e09\u4e2a\u5b50\u7ebf\u7a0b\uff0c\u4e3b\u7ebf\u7a0b\u4f1a\u901a\u8fc7\u4e00\u4e2a\u4efb\u52a1\u961f\u5217\u548c\u4e09\u4e2a\u5b50\u7ebf\u7a0b\u8fdb\u884c\u4ea4\u4e92\u3002\u5b50\u7ebf\u7a0b\u4f1a\u6839\u636e\u4efb\u52a1\u7684\u5177\u4f53\u7c7b\u578b\uff0c\u6765\u6267\u884c\u76f8\u5e94\u7684\u5f02\u6b65\u64cd\u4f5c\u3002<\/p>\n<p>\u5f02\u6b65\u5220\u9664\u64cd\u4f5c\u662f Redis 4.0 \u4ee5\u540e\u624d\u6709\u7684\u529f\u80fd\uff0c\u5982\u679c\u4f7f\u7528\u7684\u662f 4.0 \u4e4b\u524d\u7684\u7248\u672c\uff0c\u9047\u5230 bigkey \u5220\u9664\u65f6\uff0c\u5efa\u8bae\uff1a\u5148\u4f7f\u7528\u96c6\u5408\u7c7b\u578b\u63d0\u4f9b\u7684 SCAN \u547d\u4ee4\u8bfb\u53d6\u6570\u636e\uff0c \u7136\u540e\u518d\u8fdb\u884c\u5220\u9664\u3002\u56e0\u4e3a\u7528 SCAN \u547d\u4ee4\u53ef\u4ee5\u6bcf\u6b21\u53ea\u8bfb\u53d6\u4e00\u90e8\u5206\u6570\u636e\u5e76\u8fdb\u884c\u5220\u9664\uff0c\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u4e00\u6b21\u6027\u5220\u9664\u5927\u91cf key \u7ed9\u4e3b\u7ebf\u7a0b\u5e26\u6765\u7684\u963b\u585e\u3002<br \/>\u4f8b\u5982\uff0c\u5bf9\u4e8e Hash \u7c7b\u578b\u7684 bigkey \u5220\u9664\uff0c\u4f7f\u7528 HSCAN \u547d\u4ee4\uff0c\u6bcf\u6b21\u4ece Hash \u96c6\u5408\u4e2d\u83b7\u53d6\u4e00\u90e8\u5206\u952e\u503c\u5bf9\uff08\u4f8b\u5982 200 \u4e2a\uff09\uff0c\u518d\u4f7f\u7528 HDEL \u5220\u9664\u8fd9\u4e9b\u952e\u503c\u5bf9\uff0c\u53ef\u4ee5\u628a\u5220\u9664\u538b\u529b\u5206\u644a\u5230\u591a\u6b21\u64cd\u4f5c\u4e2d\uff0c\u6bcf\u6b21\u5220\u9664\u64cd\u4f5c\u7684\u8017\u65f6\u5c31\u4e0d\u4f1a\u592a\u957f\uff0c\u4e5f\u5c31\u4e0d\u4f1a\u963b\u585e\u4e3b\u7ebf\u7a0b\u4e86\u3002<\/p>\n<p><strong>\u96c6\u5408\u5168\u91cf\u67e5\u8be2\u548c\u805a\u5408\u64cd\u4f5c\u3001\u4ece\u5e93\u52a0\u8f7d RDB \u6587\u4ef6<\/strong>\u662f\u5728\u5173\u952e\u8def\u5f84\u4e0a\uff0c\u65e0\u6cd5\u4f7f\u7528\u5f02\u6b65\u64cd\u4f5c\u6765\u5b8c\u6210\u3002<br \/>\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li>\u96c6\u5408\u5168\u91cf\u67e5\u8be2\u548c\u805a\u5408\u64cd\u4f5c\uff1a\u4f7f\u7528 SCAN \u547d\u4ee4\uff0c\u5206\u6279\u8bfb\u53d6\u6570\u636e\uff0c\u518d\u5728\u5ba2\u6237\u7aef\u8fdb\u884c\u805a\u5408\u8ba1\u7b97\uff1b<\/li>\n<li>\u4ece\u5e93\u52a0\u8f7d RDB \u6587\u4ef6\uff1a\u628a\u4e3b\u5e93\u7684\u6570\u636e\u91cf\u5927\u5c0f\u63a7\u5236\u5728 2~4GB \u5de6\u53f3\uff0c\u4ee5\u4fdd\u8bc1 RDB \u6587\u4ef6\u80fd\u4ee5\u8f83\u5feb\u7684\u901f\u5ea6\u52a0\u8f7d\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6d45\u8c08Redis\u7684\u5f02\u6b65\u673a\u5236 \u6536\u85cf 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