{"id":121878,"date":"2024-10-25T11:58:46","date_gmt":"2024-10-25T03:58:46","guid":{"rendered":"https:\/\/server.hk\/cnblog\/121878\/"},"modified":"2024-10-25T11:58:47","modified_gmt":"2024-10-25T03:58:47","slug":"redis-%e9%9b%86%e7%be%a4%e6%a7%bd%e4%b8%80%e7%a8%ae%e6%96%b0%e7%9a%84%e6%9e%b6%e6%a7%8b%e6%a6%82%e5%bf%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/121878\/","title":{"rendered":"Redis \u96c6\u7fa4\u69fd\u4e00\u7a2e\u65b0\u7684\u67b6\u69cb\u6982\u5ff5"},"content":{"rendered":"<h1 id=\"redis-%e9%9b%86%e7%be%a4%e6%a7%bd%e4%b8%80%e7%a8%ae%e6%96%b0%e7%9a%84%e6%9e%b6%e6%a7%8b%e6%a6%82%e5%bf%b5-DvKAjmdewP\">Redis \u96c6\u7fa4\u69fd\u4e00\u7a2e\u65b0\u7684\u67b6\u69cb\u6982\u5ff5<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u5feb\u901f\u4e14\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\u662f\u4f01\u696d\u6210\u529f\u7684\u95dc\u9375\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5df2\u7d93\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u96a8\u8457\u9700\u6c42\u7684\u589e\u52a0\uff0cRedis \u7684\u96c6\u7fa4\u6a21\u5f0f\u4e5f\u9010\u6f38\u6210\u70ba\u4e00\u7a2e\u91cd\u8981\u7684\u67b6\u69cb\u9078\u64c7\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Redis \u96c6\u7fa4\u4e2d\u7684\u69fd\uff08slot\uff09\u6982\u5ff5\uff0c\u4e26\u5206\u6790\u5176\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis-%e9%9b%86%e7%be%a4%e6%a7%bd%ef%bc%9f-DvKAjmdewP\">\u4ec0\u9ebc\u662f Redis \u96c6\u7fa4\u69fd\uff1f<\/h2>\n<p>Redis \u96c6\u7fa4\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u65e8\u5728\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u7528\u6027\u548c\u64f4\u5c55\u6027\u3002\u5728 Redis \u96c6\u7fa4\u4e2d\uff0c\u6578\u64da\u88ab\u5283\u5206\u70ba 16384 \u500b\u69fd\uff08slots\uff09\uff0c\u6bcf\u500b\u69fd\u53ef\u4ee5\u88ab\u5206\u914d\u7d66\u4e0d\u540c\u7684\u7bc0\u9ede\u3002\u9019\u7a2e\u8a2d\u8a08\u4f7f\u5f97 Redis \u80fd\u5920\u5728\u591a\u500b\u7bc0\u9ede\u4e4b\u9593\u5206\u6563\u6578\u64da\uff0c\u5f9e\u800c\u5be6\u73fe\u8ca0\u8f09\u5747\u8861\u548c\u9ad8\u53ef\u7528\u6027\u3002<\/p>\n<h2 id=\"%e6%a7%bd%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-DvKAjmdewP\">\u69fd\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>\u5728 Redis \u96c6\u7fa4\u4e2d\uff0c\u6bcf\u500b\u9375\uff08key\uff09\u90fd\u6703\u901a\u904e\u4e00\u500b\u54c8\u5e0c\u51fd\u6578\u6620\u5c04\u5230 0 \u5230 16383 \u4e4b\u9593\u7684\u67d0\u500b\u69fd\u3002\u9019\u610f\u5473\u8457\u6bcf\u500b\u9375\u90fd\u6703\u88ab\u5206\u914d\u5230\u4e00\u500b\u7279\u5b9a\u7684\u69fd\uff0c\u4e26\u4e14\u9019\u500b\u69fd\u6703\u88ab\u5b58\u5132\u5728\u67d0\u500b\u7279\u5b9a\u7684\u7bc0\u9ede\u4e0a\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u4f7f\u5f97 Redis \u80fd\u5920\u5feb\u901f\u5b9a\u4f4d\u6578\u64da\uff0c\u56e0\u70ba\u53ea\u9700\u8a08\u7b97\u9375\u7684\u54c8\u5e0c\u503c\u5373\u53ef\u627e\u5230\u5c0d\u61c9\u7684\u69fd\u548c\u7bc0\u9ede\u3002<\/p>\n<pre><code>\n# \u8a08\u7b97\u9375\u7684\u69fd\ndef get_slot(key):\n    return hash(key) % 16384\n<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u9375 &#8220;user:1001&#8243;\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4e0a\u8ff0\u51fd\u6578\u8a08\u7b97\u51fa\u5b83\u6240\u5c6c\u7684\u69fd\u3002\u9019\u6a23\uff0c\u7576\u6211\u5011\u9700\u8981\u5b58\u53d6\u9019\u500b\u9375\u7684\u6578\u64da\u6642\uff0c\u53ea\u9700\u77e5\u9053\u5b83\u7684\u69fd\u865f\uff0c\u5c31\u80fd\u5feb\u901f\u627e\u5230\u5b58\u5132\u8a72\u6578\u64da\u7684\u7bc0\u9ede\u3002<\/p>\n<h2 id=\"%e6%a7%bd%e7%9a%84%e5%84%aa%e5%8b%a2-DvKAjmdewP\">\u69fd\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u8ca0\u8f09\u5747\u8861\uff1a<\/strong>\u901a\u904e\u5c07\u6578\u64da\u5747\u52fb\u5206\u4f48\u5230\u4e0d\u540c\u7684\u69fd\u548c\u7bc0\u9ede\u4e0a\uff0cRedis \u96c6\u7fa4\u80fd\u5920\u6709\u6548\u5730\u5e73\u8861\u8ca0\u8f09\uff0c\u907f\u514d\u55ae\u4e00\u7bc0\u9ede\u7684\u904e\u8f09\u3002<\/li>\n<li><strong>\u9ad8\u53ef\u7528\u6027\uff1a<\/strong>\u5982\u679c\u67d0\u500b\u7bc0\u9ede\u5931\u6548\uff0c\u5176\u4ed6\u7bc0\u9ede\u4ecd\u7136\u53ef\u4ee5\u7e7c\u7e8c\u63d0\u4f9b\u670d\u52d9\uff0c\u56e0\u70ba\u6bcf\u500b\u69fd\u90fd\u53ef\u4ee5\u88ab\u5176\u4ed6\u7bc0\u9ede\u6240\u64c1\u6709\u3002<\/li>\n<li><strong>\u64f4\u5c55\u6027\uff1a<\/strong>\u7576\u9700\u8981\u589e\u52a0\u66f4\u591a\u7684\u5b58\u5132\u7a7a\u9593\u6216\u8655\u7406\u80fd\u529b\u6642\uff0c\u53ef\u4ee5\u901a\u904e\u6dfb\u52a0\u65b0\u7684\u7bc0\u9ede\u4f86\u64f4\u5c55\u96c6\u7fa4\uff0c\u4e26\u91cd\u65b0\u5206\u914d\u69fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%a7%bd%e7%9a%84%e7%ae%a1%e7%90%86-DvKAjmdewP\">\u69fd\u7684\u7ba1\u7406<\/h2>\n<p>\u5728 Redis \u96c6\u7fa4\u4e2d\uff0c\u69fd\u7684\u7ba1\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u7576\u4e00\u500b\u65b0\u7684\u7bc0\u9ede\u52a0\u5165\u96c6\u7fa4\u6642\uff0c\u7cfb\u7d71\u9700\u8981\u91cd\u65b0\u5206\u914d\u69fd\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5747\u52fb\u5206\u4f48\u3002\u9019\u500b\u904e\u7a0b\u7a31\u70ba\u69fd\u7684\u91cd\u65b0\u5206\u914d\uff08slot rebalancing\uff09\u3002Redis \u63d0\u4f9b\u4e86\u547d\u4ee4\u4f86\u5e6b\u52a9\u7ba1\u7406\u69fd\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>\n# \u5c07\u69fd\u5f9e\u4e00\u500b\u7bc0\u9ede\u9077\u79fb\u5230\u53e6\u4e00\u500b\u7bc0\u9ede\nCLUSTER SETSLOT  IMPORTING \nCLUSTER SETSLOT  MIGRATING \n<\/code><\/pre>\n<p>\u9019\u4e9b\u547d\u4ee4\u5141\u8a31\u7528\u6236\u624b\u52d5\u63a7\u5236\u69fd\u7684\u5206\u914d\u548c\u9077\u79fb\uff0c\u5f9e\u800c\u5be6\u73fe\u66f4\u9748\u6d3b\u7684\u96c6\u7fa4\u7ba1\u7406\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-DvKAjmdewP\">\u7d50\u8ad6<\/h2>\n<p>Redis \u96c6\u7fa4\u69fd\u7684\u6982\u5ff5\u70ba\u5206\u4f48\u5f0f\u6578\u64da\u5b58\u5132\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u5c07\u6578\u64da\u5283\u5206\u70ba\u591a\u500b\u69fd\uff0cRedis \u80fd\u5920\u5be6\u73fe\u8ca0\u8f09\u5747\u8861\u3001\u9ad8\u53ef\u7528\u6027\u548c\u826f\u597d\u7684\u64f4\u5c55\u6027\u3002\u96a8\u8457\u4f01\u696d\u5c0d\u6578\u64da\u5b58\u5132\u9700\u6c42\u7684\u589e\u52a0\uff0c\u7406\u89e3\u548c\u638c\u63e1 Redis \u96c6\u7fa4\u69fd\u7684\u904b\u4f5c\u539f\u7406\u5c07\u5c0d\u958b\u767c\u8005\u548c\u7cfb\u7d71\u67b6\u69cb\u5e2b\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u9ad8\u6027\u80fd\u7684 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u9084\u662f\u9748\u6d3b\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u96c6\u7fa4\u69fd\u7684\u5168\u65b0\u67b6\u69cb\u6982\u5ff5\uff0c\u63d0\u5347\u6578\u64da\u5206\u4f48\u6548\u7387\uff0c\u512a\u5316\u6027\u80fd\uff0c\u5be6\u73fe\u66f4\u9ad8\u7684\u53ef\u64f4\u5c55\u6027\u548c\u53ef\u9760\u6027\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-121878","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/121878","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=121878"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/121878\/revisions"}],"predecessor-version":[{"id":121879,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/121878\/revisions\/121879"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=121878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=121878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=121878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}