{"id":122640,"date":"2024-10-25T12:48:18","date_gmt":"2024-10-25T04:48:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/122640\/"},"modified":"2024-10-25T12:48:19","modified_gmt":"2024-10-25T04:48:19","slug":"redis-%e9%9b%86%e7%be%a4%e6%94%b9%e8%ae%8a%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e5%9c%b0%e5%9d%80","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/122640\/","title":{"rendered":"Redis \u96c6\u7fa4\u6539\u8b8a\u6578\u64da\u5b58\u5132\u5730\u5740"},"content":{"rendered":"<h1 id=\"redis-%e9%9b%86%e7%be%a4%e6%94%b9%e8%ae%8a%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e5%9c%b0%e5%9d%80-VUAcIiMLWr\">Redis \u96c6\u7fa4\u6539\u8b8a\u6578\u64da\u5b58\u5132\u5730\u5740<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5b58\u5132\u548c\u7ba1\u7406\u7684\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u61c9\u7528\u4e2d\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0cRedis \u96c6\u7fa4\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u96c6\u7fa4\u5982\u4f55\u6539\u8b8a\u6578\u64da\u5b58\u5132\u5730\u5740\uff0c\u4ee5\u53ca\u9019\u4e00\u904e\u7a0b\u4e2d\u7684\u4e00\u4e9b\u6280\u8853\u7d30\u7bc0\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis-%e9%9b%86%e7%be%a4%ef%bc%9f-VUAcIiMLWr\">\u4ec0\u9ebc\u662f Redis \u96c6\u7fa4\uff1f<\/h2>\n<p>Redis \u96c6\u7fa4\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u5141\u8a31\u7528\u6236\u5728\u591a\u500b Redis \u5be6\u4f8b\u4e4b\u9593\u5206\u914d\u6578\u64da\u3002\u9019\u7a2e\u67b6\u69cb\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u53ef\u7528\u6027\uff0c\u9084\u589e\u5f37\u4e86\u7cfb\u7d71\u7684\u64f4\u5c55\u6027\u3002Redis \u96c6\u7fa4\u901a\u904e\u5c07\u6578\u64da\u5206\u7247\uff08sharding\uff09\u4f86\u5be6\u73fe\u8ca0\u8f09\u5747\u8861\uff0c\u9019\u610f\u5473\u8457\u6bcf\u500b Redis \u7bc0\u9ede\u53ea\u5b58\u5132\u6574\u500b\u6578\u64da\u96c6\u7684\u4e00\u90e8\u5206\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e5%9c%b0%e5%9d%80%e7%9a%84%e6%94%b9%e8%ae%8a-VUAcIiMLWr\">\u6578\u64da\u5b58\u5132\u5730\u5740\u7684\u6539\u8b8a<\/h2>\n<p>\u5728 Redis \u96c6\u7fa4\u4e2d\uff0c\u6578\u64da\u7684\u5b58\u5132\u5730\u5740\u662f\u6839\u64da\u54c8\u5e0c\u69fd\uff08hash slot\uff09\u4f86\u6c7a\u5b9a\u7684\u3002Redis \u96c6\u7fa4\u5c07\u6578\u64da\u5206\u70ba 16384 \u500b\u54c8\u5e0c\u69fd\uff0c\u4e26\u5c07\u9019\u4e9b\u69fd\u5206\u914d\u7d66\u4e0d\u540c\u7684\u7bc0\u9ede\u3002\u7576\u4e00\u500b\u9375\u88ab\u5beb\u5165\u6642\uff0cRedis \u6703\u8a08\u7b97\u8a72\u9375\u7684\u54c8\u5e0c\u503c\uff0c\u7136\u5f8c\u5c07\u5176\u6620\u5c04\u5230\u76f8\u61c9\u7684\u54c8\u5e0c\u69fd\uff0c\u6700\u7d42\u6c7a\u5b9a\u6578\u64da\u5b58\u5132\u7684\u5177\u9ad4\u7bc0\u9ede\u3002<\/p>\n<pre><code>\n# \u8a08\u7b97\u54c8\u5e0c\u69fd\u7684\u793a\u4f8b\ndef get_hash_slot(key):\n    return hash(key) % 16384\n<\/code><\/pre>\n<p>\u9019\u7a2e\u8a2d\u8a08\u4f7f\u5f97 Redis \u96c6\u7fa4\u80fd\u5920\u5728\u7bc0\u9ede\u4e4b\u9593\u9748\u6d3b\u5730\u5206\u914d\u6578\u64da\uff0c\u4e26\u4e14\u5728\u67d0\u500b\u7bc0\u9ede\u5931\u6548\u6642\uff0c\u5176\u4ed6\u7bc0\u9ede\u53ef\u4ee5\u8fc5\u901f\u63a5\u7ba1\u5176\u8ca0\u8cac\u7684\u54c8\u5e0c\u69fd\uff0c\u5f9e\u800c\u4fdd\u8b49\u7cfb\u7d71\u7684\u9ad8\u53ef\u7528\u6027\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e9%87%8d%e5%88%86%e4%bd%88-VUAcIiMLWr\">\u6578\u64da\u91cd\u5206\u4f48<\/h2>\n<p>\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u53ef\u80fd\u9700\u8981\u5c0d Redis \u96c6\u7fa4\u9032\u884c\u64f4\u5c55\uff0c\u9019\u901a\u5e38\u6d89\u53ca\u5230\u6578\u64da\u7684\u91cd\u5206\u4f48\u3002\u7576\u65b0\u7bc0\u9ede\u52a0\u5165\u96c6\u7fa4\u6642\uff0cRedis \u6703\u81ea\u52d5\u5c07\u90e8\u5206\u54c8\u5e0c\u69fd\u7684\u6578\u64da\u5f9e\u73fe\u6709\u7bc0\u9ede\u8f49\u79fb\u5230\u65b0\u7bc0\u9ede\u3002\u9019\u4e00\u904e\u7a0b\u7a31\u70ba\u201c\u6578\u64da\u9077\u79fb\u201d\u3002<\/p>\n<p>\u6578\u64da\u9077\u79fb\u7684\u904e\u7a0b\u4e2d\uff0cRedis \u6703\u4f7f\u7528\u4e00\u7a2e\u7a31\u70ba\u201c\u589e\u91cf\u9077\u79fb\u201d\u7684\u6280\u8853\uff0c\u9019\u610f\u5473\u8457\u5728\u9077\u79fb\u904e\u7a0b\u4e2d\uff0c\u539f\u59cb\u7bc0\u9ede\u4ecd\u7136\u53ef\u4ee5\u8655\u7406\u8acb\u6c42\uff0c\u5f9e\u800c\u6e1b\u5c11\u4e86\u7cfb\u7d71\u7684\u505c\u6a5f\u6642\u9593\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e4%b8%80%e8%87%b4%e6%80%a7-VUAcIiMLWr\">\u6578\u64da\u4e00\u81f4\u6027<\/h2>\n<p>\u5728 Redis \u96c6\u7fa4\u4e2d\uff0c\u6578\u64da\u7684\u4e00\u81f4\u6027\u662f\u53e6\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u3002\u7531\u65bc\u6578\u64da\u53ef\u80fd\u5728\u591a\u500b\u7bc0\u9ede\u4e4b\u9593\u5206\u4f48\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u8b8a\u5f97\u66f4\u52a0\u8907\u96dc\u3002Redis \u4f7f\u7528\u4e3b\u5f9e\u8907\u88fd\u7684\u65b9\u5f0f\u4f86\u4fdd\u8b49\u6578\u64da\u7684\u4e00\u81f4\u6027\uff0c\u4e3b\u7bc0\u9ede\u8ca0\u8cac\u5beb\u5165\u64cd\u4f5c\uff0c\u800c\u5f9e\u7bc0\u9ede\u5247\u7528\u65bc\u8b80\u53d6\u64cd\u4f5c\u3002<\/p>\n<p>\u5728\u4e3b\u7bc0\u9ede\u5931\u6548\u7684\u60c5\u6cc1\u4e0b\uff0cRedis \u53ef\u4ee5\u81ea\u52d5\u9078\u8209\u4e00\u500b\u65b0\u7684\u4e3b\u7bc0\u9ede\uff0c\u4e26\u5c07\u5f9e\u7bc0\u9ede\u5347\u7d1a\u70ba\u4e3b\u7bc0\u9ede\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u6301\u7e8c\u904b\u884c\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-VUAcIiMLWr\">\u7d50\u8ad6<\/h2>\n<p>Redis \u96c6\u7fa4\u901a\u904e\u54c8\u5e0c\u69fd\u7684\u65b9\u5f0f\u6539\u8b8a\u4e86\u6578\u64da\u7684\u5b58\u5132\u5730\u5740\uff0c\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u53ef\u7528\u6027\u548c\u64f4\u5c55\u6027\uff0c\u9084\u78ba\u4fdd\u4e86\u7cfb\u7d71\u7684\u9ad8\u6548\u904b\u884c\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0cRedis \u96c6\u7fa4\u7684\u512a\u52e2\u5c07\u6108\u52a0\u660e\u986f\uff0c\u6210\u70ba\u8a31\u591a\u4f01\u696d\u6578\u64da\u5b58\u5132\u7684\u9996\u9078\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u696d\u52d9\u4e2d\u5be6\u65bd Redis \u96c6\u7fa4\u6709\u8208\u8da3\uff0c\u6216\u662f\u9700\u8981\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis \u96c6\u7fa4\u6539\u8b8a\u6578\u64da\u5b58\u5132\u5730\u5740\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u5be6\u73fe\u9ad8\u53ef\u7528\u6027\u548c\u64f4\u5c55\u6027\uff0c\u512a\u5316\u6027\u80fd\u548c\u8cc7\u6e90\u5229\u7528\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-122640","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/122640","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=122640"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/122640\/revisions"}],"predecessor-version":[{"id":122641,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/122640\/revisions\/122641"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=122640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=122640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=122640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}