{"id":105982,"date":"2024-10-23T13:50:26","date_gmt":"2024-10-23T05:50:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/105982\/"},"modified":"2024-10-23T13:50:27","modified_gmt":"2024-10-23T05:50:27","slug":"redis-%e5%93%88%e5%b8%8c%e6%a7%bd%e5%be%9e%e7%b5%90%e6%a7%8b%e5%88%b0%e5%af%a6%e7%8f%be","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/105982\/","title":{"rendered":"Redis \u54c8\u5e0c\u69fd\u5f9e\u7d50\u69cb\u5230\u5be6\u73fe"},"content":{"rendered":"<h1 id=\"redis-%e5%93%88%e5%b8%8c%e6%a7%bd%e5%be%9e%e7%b5%90%e6%a7%8b%e5%88%b0%e5%af%a6%e7%8f%be-xTKwtVKeHr\">Redis \u54c8\u5e0c\u69fd\u5f9e\u7d50\u69cb\u5230\u5be6\u73fe<\/h1>\n<p>Redis \u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u3002\u5176\u5167\u90e8\u7d50\u69cb\u8a2d\u8a08\u7cbe\u5de7\uff0c\u7279\u5225\u662f\u54c8\u5e0c\u69fd\uff08hash slot\uff09\u6a5f\u5236\uff0c\u5c0d\u65bc\u5206\u4f48\u5f0f\u7cfb\u7d71\u7684\u6578\u64da\u5206\u7247\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Redis \u54c8\u5e0c\u69fd\u7684\u7d50\u69cb\u53ca\u5176\u5be6\u73fe\u65b9\u5f0f\u3002<\/p>\n<h2 id=\"%e5%93%88%e5%b8%8c%e6%a7%bd%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-xTKwtVKeHr\">\u54c8\u5e0c\u69fd\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u54c8\u5e0c\u69fd\u662f\u4e00\u7a2e\u7528\u65bc\u5c07\u9375\u6620\u5c04\u5230\u7279\u5b9a\u6578\u64da\u5206\u7247\u7684\u6a5f\u5236\u3002Redis \u96c6\u7fa4\u6a21\u5f0f\u4e0b\uff0c\u6578\u64da\u88ab\u5206\u6563\u5b58\u5132\u5728\u591a\u500b\u7bc0\u9ede\u4e0a\uff0c\u6bcf\u500b\u7bc0\u9ede\u8ca0\u8cac\u4e00\u90e8\u5206\u54c8\u5e0c\u69fd\u3002Redis \u7684\u54c8\u5e0c\u69fd\u7e3d\u6578\u70ba 16384\uff0c\u9019\u610f\u5473\u8457\u6bcf\u500b\u9375\u5728\u5b58\u5132\u6642\u6703\u88ab\u6620\u5c04\u5230\u9019 16384 \u500b\u69fd\u4e2d\u7684\u4e00\u500b\u3002<\/p>\n<h2 id=\"%e5%93%88%e5%b8%8c%e6%a7%bd%e7%9a%84%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95-xTKwtVKeHr\">\u54c8\u5e0c\u69fd\u7684\u8a08\u7b97\u65b9\u6cd5<\/h2>\n<p>\u8981\u5c07\u4e00\u500b\u9375\u6620\u5c04\u5230\u54c8\u5e0c\u69fd\uff0cRedis \u4f7f\u7528\u4ee5\u4e0b\u516c\u5f0f\uff1a<\/p>\n<pre><code>hash_slot = CRC16(key) mod 16384<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>CRC16<\/code> \u662f\u4e00\u7a2e\u6821\u9a57\u548c\u7b97\u6cd5\uff0c\u7528\u65bc\u8a08\u7b97\u9375\u7684\u54c8\u5e0c\u503c\u3002\u901a\u904e\u53d6\u6a21\u904b\u7b97\uff0c\u5c07\u54c8\u5e0c\u503c\u6620\u5c04\u5230 0 \u5230 16383 \u7684\u7bc4\u570d\u5167\uff0c\u5f9e\u800c\u78ba\u5b9a\u8a72\u9375\u6240\u5c6c\u7684\u54c8\u5e0c\u69fd\u3002<\/p>\n<h2 id=\"%e5%93%88%e5%b8%8c%e6%a7%bd%e7%9a%84%e7%b5%90%e6%a7%8b-xTKwtVKeHr\">\u54c8\u5e0c\u69fd\u7684\u7d50\u69cb<\/h2>\n<p>Redis \u7684\u54c8\u5e0c\u69fd\u7d50\u69cb\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>\u69fd\u4f4d\u6578\u7d44\uff1a<\/strong>Redis \u4f7f\u7528\u4e00\u500b\u6578\u7d44\u4f86\u5b58\u5132\u6bcf\u500b\u54c8\u5e0c\u69fd\u6240\u5c0d\u61c9\u7684\u6578\u64da\u7bc0\u9ede\u3002\u6bcf\u500b\u69fd\u4f4d\u53ef\u4ee5\u6307\u5411\u4e00\u500b\u6216\u591a\u500b\u9375\u3002<\/li>\n<li><strong>\u7bc0\u9ede\u4fe1\u606f\uff1a<\/strong>\u6bcf\u500b\u7bc0\u9ede\u5305\u542b\u5176\u6240\u8ca0\u8cac\u7684\u54c8\u5e0c\u69fd\u7bc4\u570d\uff0c\u4ee5\u53ca\u8a72\u7bc0\u9ede\u7684\u72c0\u614b\u4fe1\u606f\uff08\u5982\u4e3b\u5f9e\u95dc\u4fc2\u3001\u5065\u5eb7\u72c0\u614b\u7b49\uff09\u3002<\/li>\n<li><strong>\u9375\u503c\u5c0d\uff1a<\/strong>\u6bcf\u500b\u54c8\u5e0c\u69fd\u5167\u90e8\u5be6\u969b\u5b58\u5132\u7684\u6578\u64da\uff0c\u9019\u4e9b\u6578\u64da\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u591a\u7a2e\u6578\u64da\u985e\u578b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%93%88%e5%b8%8c%e6%a7%bd%e7%9a%84%e5%af%a6%e7%8f%be%e9%81%8e%e7%a8%8b-xTKwtVKeHr\">\u54c8\u5e0c\u69fd\u7684\u5be6\u73fe\u904e\u7a0b<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u7576\u4e00\u500b\u9375\u88ab\u63d2\u5165\u6642\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u8a08\u7b97\u5176\u54c8\u5e0c\u69fd\u4e26\u5c07\u5176\u5b58\u5132\u5230\u76f8\u61c9\u7684\u7bc0\u9ede\u4e0a\u3002\u5177\u9ad4\u904e\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u8a08\u7b97\u9375\u7684\u54c8\u5e0c\u69fd\uff1a\u4f7f\u7528\u4e0a\u8ff0\u7684\u54c8\u5e0c\u8a08\u7b97\u516c\u5f0f\u3002<\/li>\n<li>\u67e5\u627e\u5c0d\u61c9\u7684\u7bc0\u9ede\uff1a\u6839\u64da\u54c8\u5e0c\u69fd\u7684\u503c\uff0c\u67e5\u627e\u8ca0\u8cac\u8a72\u69fd\u7684\u7bc0\u9ede\u3002<\/li>\n<li>\u5b58\u5132\u6578\u64da\uff1a\u5c07\u9375\u503c\u5c0d\u5b58\u5132\u5230\u627e\u5230\u7684\u7bc0\u9ede\u4e2d\u3002<\/li>\n<\/ol>\n<p>\u5728\u6578\u64da\u67e5\u8a62\u6642\uff0cRedis \u6703\u91cd\u8907\u9019\u4e00\u904e\u7a0b\uff0c\u9996\u5148\u8a08\u7b97\u9375\u7684\u54c8\u5e0c\u69fd\uff0c\u7136\u5f8c\u67e5\u627e\u5c0d\u61c9\u7684\u7bc0\u9ede\uff0c\u6700\u5f8c\u8fd4\u56de\u5b58\u5132\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e5%93%88%e5%b8%8c%e6%a7%bd%e7%9a%84%e5%84%aa%e5%8b%a2-xTKwtVKeHr\">\u54c8\u5e0c\u69fd\u7684\u512a\u52e2<\/h2>\n<p>\u4f7f\u7528\u54c8\u5e0c\u69fd\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u7684\u6578\u64da\u5206\u7247\uff1a<\/strong>\u54c8\u5e0c\u69fd\u4f7f\u5f97\u6578\u64da\u80fd\u5920\u5747\u52fb\u5206\u4f48\u5728\u591a\u500b\u7bc0\u9ede\u4e0a\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u7c21\u5316\u7684\u64f4\u5c55\u6027\uff1a<\/strong>\u7576\u9700\u8981\u589e\u52a0\u65b0\u7684\u7bc0\u9ede\u6642\uff0c\u53ea\u9700\u91cd\u65b0\u5206\u914d\u90e8\u5206\u54c8\u5e0c\u69fd\uff0c\u7121\u9700\u5c0d\u6574\u500b\u6578\u64da\u96c6\u9032\u884c\u91cd\u7d44\u3002<\/li>\n<li><strong>\u6545\u969c\u6062\u5fa9\uff1a<\/strong>\u5728\u7bc0\u9ede\u6545\u969c\u6642\uff0c\u5176\u4ed6\u7bc0\u9ede\u53ef\u4ee5\u5feb\u901f\u63a5\u7ba1\u5176\u8ca0\u8cac\u7684\u54c8\u5e0c\u69fd\uff0c\u4fdd\u8b49\u7cfb\u7d71\u7684\u9ad8\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-xTKwtVKeHr\">\u7d50\u8ad6<\/h2>\n<p>Redis \u7684\u54c8\u5e0c\u69fd\u6a5f\u5236\u662f\u5176\u9ad8\u6548\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u7684\u95dc\u9375\u6240\u5728\u3002\u901a\u904e\u5408\u7406\u7684\u6578\u64da\u5206\u7247\u548c\u7c21\u5316\u7684\u64f4\u5c55\u904e\u7a0b\uff0cRedis \u80fd\u5920\u5728\u9ad8\u8ca0\u8f09\u74b0\u5883\u4e0b\u4fdd\u6301\u7a69\u5b9a\u7684\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u5132\u548c\u5feb\u901f\u8a2a\u554f\u7684\u61c9\u7528\u5834\u666f\uff0cRedis \u7121\u7591\u662f\u4e00\u500b\u7406\u60f3\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u54c8\u5e0c\u69fd\u7684\u7d50\u69cb\u8207\u5be6\u73fe\uff0c\u6df1\u5165\u4e86\u89e3\u5176\u5728\u6578\u64da\u5206\u7247\u4e2d\u7684\u95dc\u9375\u89d2\u8272\u8207\u512a\u5316\u7b56\u7565\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-105982","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/105982","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=105982"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/105982\/revisions"}],"predecessor-version":[{"id":105983,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/105982\/revisions\/105983"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=105982"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=105982"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=105982"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}