{"id":413,"date":"2025-12-31T01:31:47","date_gmt":"2025-12-30T17:31:47","guid":{"rendered":"https:\/\/www.moping.me\/?p=413"},"modified":"2025-12-31T01:31:48","modified_gmt":"2025-12-30T17:31:48","slug":"redis%e9%9b%86%e7%be%a4%e5%ae%9e%e7%8e%b0%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.moping.me\/index.php\/2025\/12\/31\/redis%e9%9b%86%e7%be%a4%e5%ae%9e%e7%8e%b0%e5%8e%9f%e7%90%86\/","title":{"rendered":"Redis\u96c6\u7fa4\u5b9e\u73b0\u539f\u7406"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\ud83c\udf1f \u6838\u5fc3\u67b6\u6784\u8bbe\u8ba1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u96c6\u7fa4\u901a\u8fc7<strong>\u5206\u7247\uff08Sharding\uff09<\/strong>\u3001<strong>Gossip\u534f\u8bae<\/strong>\u548c<strong>\u53bb\u4e2d\u5fc3\u5316<\/strong>\u4e09\u5927\u6838\u5fc3\u673a\u5236\uff0c\u89e3\u51b3\u4e86\u5355\u673a\u5185\u5b58\u4e0e\u5e76\u53d1\u74f6\u9888\u95ee\u9898\u3002\u5176\u67b6\u6784\u7279\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u65e0\u4e2d\u5fc3\u8282\u70b9<\/strong>\uff1a\u6240\u6709\u8282\u70b9\u5bf9\u7b49\uff0c\u65e0\u4e3b\u4ece\u63a7\u5236\u5173\u7cfb<\/li>\n\n\n\n<li><strong>\u6570\u636e\u5206\u7247\u5b58\u50a8<\/strong>\uff1a16384\u4e2a\u54c8\u5e0c\u69fd\uff08Hash Slot\uff09\u5206\u6563\u5b58\u50a8\u5728\u591a\u4e2a\u8282\u70b9<\/li>\n\n\n\n<li><strong>\u52a8\u6001\u62d3\u6251\u7ba1\u7406<\/strong>\uff1a\u8282\u70b9\u901a\u8fc7Gossip\u534f\u8bae\u81ea\u52a8\u540c\u6b65\u96c6\u7fa4\u72b6\u6001<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd11 \u6838\u5fc3\u673a\u5236\u8be6\u89e3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1\ufe0f\u20e3 \u6570\u636e\u5206\u7247\u4e0e\u8def\u7531<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u54c8\u5e0c\u69fd\u5206\u914d\u673a\u5236<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>graph LR\n    A&#91;Key] --&gt; B&#91;CRC16\u8ba1\u7b97]\n    B --&gt; C&#91;\u5bf916384\u53d6\u6a21]\n    C --&gt; D&#91;\u5b9a\u4f4d\u54c8\u5e0c\u69fd]\n    D --&gt; E&#91;\u8def\u7531\u5230\u5bf9\u5e94\u8282\u70b9]\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u4e2a\u8282\u70b9\u8d1f\u8d23\u7ef4\u62a4\u8fde\u7eed\u7684\u54c8\u5e0c\u69fd\u533a\u95f4\uff08\u5982Node1:0-5460\uff09<\/li>\n\n\n\n<li>\u6269\u5bb9\u65f6\u53ea\u9700\u8fc1\u79fb\u90e8\u5206\u69fd\u4f4d\uff0c\u907f\u514d\u5168\u91cf\u6570\u636e\u91cd\u5206\u5e03<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u8def\u7531\u6d41\u7a0b\u793a\u4f8b<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code># \u5b58\u50a8\u952e\u503c\u5bf9 user:1001\nslot = CRC16(\"user:1001\") % 16384  # \u8ba1\u7b97\u5f9712345\n# \u843d\u5728Node3\u7ba1\u7406\u533a\u95f4\uff0810923-16383\uff09\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2\ufe0f\u20e3 \u8282\u70b9\u901a\u4fe1\u534f\u8bae<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Gossip\u534f\u8bae\u5de5\u4f5c\u673a\u5236<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6a21\u5f0f<\/th><th>\u4f20\u64ad\u673a\u5236<\/th><th>\u7279\u70b9<\/th><\/tr><\/thead><tbody><tr><td>Push<\/td><td>\u4e3b\u52a8\u63a8\u9001\u6d88\u606f<\/td><td>\u50cf\u75c5\u6bd2\u6269\u6563<\/td><\/tr><tr><td>Pull<\/td><td>\u5b9a\u671f\u62c9\u53d6\u72b6\u6001<\/td><td>\u805a\u4f1a\u5f0f\u4fe1\u606f\u4ea4\u6362<\/td><\/tr><tr><td>Push+Pull<\/td><td>\u6df7\u5408\u6a21\u5f0f<\/td><td>\u6700\u5e38\u7528\uff0c\u4f20\u64ad\u6548\u7387\u6700\u9ad8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8282\u70b9\u72b6\u6001\u540c\u6b65\u6d41\u7a0b<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8282\u70b9\u5468\u671f\u6027\u968f\u673a\u9009\u62e9\u90bb\u5c45\u8282\u70b9<\/li>\n\n\n\n<li>\u4ea4\u6362\u62d3\u6251\u4fe1\u606f\uff08\u69fd\u4f4d\u5206\u914d\u3001\u8282\u70b9\u5b58\u6d3b\u72b6\u6001\uff09<\/li>\n\n\n\n<li>3-10\u79d2\u5185\u5168\u7f51\u8fbe\u6210\u72b6\u6001\u4e00\u81f4<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">3\ufe0f\u20e3 \u5ba2\u6237\u7aef\u4ea4\u4e92<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u8bf7\u6c42\u91cd\u5b9a\u5411\u673a\u5236<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>sequenceDiagram\n    Client-&gt;&gt;Node1: GET user:1001\n    Node1--&gt;&gt;Client: MOVED &lt;Node3_IP:Port&gt;\n    Client-&gt;&gt;Node3: GET user:1001\n    Node3--&gt;&gt;Client: \u8fd4\u56de\u6570\u636e\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5ba2\u6237\u7aef\u53ef\u8fde\u63a5\u4efb\u610f\u8282\u70b9<\/li>\n\n\n\n<li>\u6570\u636e\u4e0d\u5728\u5f53\u524d\u8282\u70b9\u65f6\u8fd4\u56de<code>MOVED<\/code>\u9519\u8bef\u800c\u975e\u4ee3\u7406\u8f6c\u53d1<\/li>\n\n\n\n<li>\u5ba2\u6237\u7aef\u9700\u91cd\u65b0\u8fde\u63a5\u76ee\u6807\u8282\u70b9\uff08\u9700\u5ba2\u6237\u7aef\u652f\u6301\u96c6\u7fa4\u6a21\u5f0f\uff09<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2699\ufe0f \u6280\u672f\u51b3\u7b56\u6df1\u5ea6\u89e3\u6790<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1\ufe0f\u20e3 \u4e3a\u4ec0\u4e48\u9009\u62e916384\u4e2a\u54c8\u5e0c\u69fd\uff1f<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u5e26\u5bbd\u6548\u7387\u4f18\u5316<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u69fd\u4f4d\u6570<\/th><th>\u6d88\u606f\u5934\u5927\u5c0f<\/th><th>\u5e26\u5bbd\u8282\u7701<\/th><\/tr><\/thead><tbody><tr><td>16384<\/td><td>2KB<\/td><td>\u2b50\u2b50\u2b50\u2b50<\/td><\/tr><tr><td>65535<\/td><td>8KB<\/td><td>\u2b50<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8ba1\u7b97\u539f\u7406<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u69fd\u4f4d\u4fe1\u606f\u7528\u4f4d\u6570\u7ec4\u8868\u793a\uff0816384\u4f4d = 2048\u5b57\u8282\uff09<\/li>\n\n\n\n<li>\u5fc3\u8df3\u5305\u643a\u5e26\u69fd\u4f4d\u4fe1\u606f\uff0c\u51cf\u5c1180%\u7f51\u7edc\u5f00\u9500<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u96c6\u7fa4\u89c4\u6a21\u9002\u914d<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9e\u9645\u573a\u666f\u4e2d\u8282\u70b9\u6570\u901a\u5e38&lt;1000<\/li>\n\n\n\n<li>16384\u69fd\u4f4d\u4fdd\u8bc1\u6bcf\u4e2a\u5206\u7247\u69fd\u4f4d\u6570\u5408\u7406\uff08\u59823\u8282\u70b9\u65f6\u6bcf\u8282\u70b9\u7ea65461\u69fd\uff09<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcca \u96c6\u7fa4\u6027\u80fd\u7279\u5f81\u5bf9\u6bd4<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th>\u4f20\u7edf\u54c8\u5e0c<\/th><th>Redis\u96c6\u7fa4<\/th><\/tr><\/thead><tbody><tr><td>\u6269\u5bb9\u6210\u672c<\/td><td>O(N)\u91cd\u54c8\u5e0c<\/td><td>\u5c40\u90e8\u69fd\u8fc1\u79fb<\/td><\/tr><tr><td>\u5bb9\u9519\u6027<\/td><td>\u4f9d\u8d56\u4e2d\u5fc3\u8282\u70b9<\/td><td>\u53bb\u4e2d\u5fc3\u5316\u81ea\u6108<\/td><\/tr><tr><td>\u4e00\u81f4\u6027<\/td><td>\u5f3a\u4e00\u81f4\u6027<\/td><td>\u6700\u7ec8\u4e00\u81f4\u6027<\/td><\/tr><tr><td>\u9002\u7528\u573a\u666f<\/td><td>\u5c0f\u89c4\u6a21\u96c6\u7fa4<\/td><td>\u5343\u8282\u70b9\u7ea7\u6269\u5c55<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udee0\ufe0f \u8fd0\u7ef4\u5b9e\u8df5\u8981\u70b9<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8282\u70b9\u53d1\u73b0<\/strong>\uff1a\u5ba2\u6237\u7aef\u901a\u8fc7<code>CLUSTER NODES<\/code>\u547d\u4ee4\u83b7\u53d6\u62d3\u6251<\/li>\n\n\n\n<li><strong>\u6545\u969c\u8f6c\u79fb<\/strong>\uff1a\u4ece\u8282\u70b9\u5728\u4e3b\u8282\u70b9\u5931\u8054\u65f6\u81ea\u52a8\u664b\u5347<\/li>\n\n\n\n<li><strong>\u69fd\u8fc1\u79fb<\/strong>\uff1a\u4f7f\u7528<code>redis-cli --cluster reshard<\/code>\u5de5\u5177<\/li>\n\n\n\n<li><strong>\u76d1\u63a7\u91cd\u70b9<\/strong>\uff1aGossip\u534f\u8bae\u901a\u4fe1\u5ef6\u8fdf\uff08\u9ed8\u8ba4\u6bcf\u79d21\u6b21\uff09<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udc8e \u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\u96c6\u7fa4\u901a\u8fc7\u521b\u65b0\u7684\u54c8\u5e0c\u69fd\u8bbe\u8ba1\u4e0eGossip\u534f\u8bae\uff0c\u5b9e\u73b0\u4e86\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7ebf\u6027\u6269\u5c55\u80fd\u529b<\/strong>\uff1a\u652f\u6301\u5343\u8282\u70b9\u7ea7\u6c34\u5e73\u6269\u5c55<\/li>\n\n\n\n<li><strong>\u9ad8\u53ef\u7528\u4fdd\u969c<\/strong>\uff1a\u65e0\u5355\u70b9\u6545\u969c\u7684\u53bb\u4e2d\u5fc3\u5316\u67b6\u6784<\/li>\n\n\n\n<li><strong>\u8fd0\u7ef4\u53cb\u597d\u6027<\/strong>\uff1a\u52a8\u6001\u69fd\u8fc1\u79fb\u7b80\u5316\u6269\u5bb9\u6d41\u7a0b<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udccc \u9002\u7528\u573a\u666f\uff1a\u9ad8\u5e76\u53d1\u8bfb\u5199\u3001\u6d77\u91cf\u6570\u636e\u5b58\u50a8\u3001\u5bf9\u5f3a\u4e00\u81f4\u6027\u8981\u6c42\u4e0d\u9ad8\u7684\u7cfb\u7edf\uff08\u5982\u7535\u5546\u8d2d\u7269\u8f66\u3001\u4f1a\u8bdd\u7f13\u5b58\u7b49\uff09<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u672c\u6587\u57fa\u4e8eRedis 7.0\u96c6\u7fa4\u89c4\u8303\u7f16\u5199\uff0c\u5b9e\u9645\u90e8\u7f72\u5efa\u8bae\u4f7f\u7528Redis\u5b98\u65b9\u96c6\u7fa4\u5de5\u5177\u7ba1\u7406\u8282\u70b9<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83c\udf1f \u6838\u5fc3\u67b6\u6784\u8bbe\u8ba1 Redis\u96c6\u7fa4\u901a\u8fc7\u5206\u7247\uff08Sharding\uff09\u3001Gossip\u534f\u8bae\u548c\u53bb\u4e2d\u5fc3\u5316\u4e09\u5927\u6838\u5fc3\u673a\u5236\uff0c\u89e3\u51b3\u4e86\u5355 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34,33],"tags":[37,36],"class_list":["post-413","post","type-post","status-publish","format-standard","hentry","category-redis","category-33","tag-redis","tag-36"],"_links":{"self":[{"href":"https:\/\/www.moping.me\/index.php\/wp-json\/wp\/v2\/posts\/413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.moping.me\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.moping.me\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.moping.me\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.moping.me\/index.php\/wp-json\/wp\/v2\/comments?post=413"}],"version-history":[{"count":1,"href":"https:\/\/www.moping.me\/index.php\/wp-json\/wp\/v2\/posts\/413\/revisions"}],"predecessor-version":[{"id":414,"href":"https:\/\/www.moping.me\/index.php\/wp-json\/wp\/v2\/posts\/413\/revisions\/414"}],"wp:attachment":[{"href":"https:\/\/www.moping.me\/index.php\/wp-json\/wp\/v2\/media?parent=413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.moping.me\/index.php\/wp-json\/wp\/v2\/categories?post=413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.moping.me\/index.php\/wp-json\/wp\/v2\/tags?post=413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}