{"id":129263,"date":"2024-10-26T20:18:17","date_gmt":"2024-10-26T12:18:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129263\/"},"modified":"2024-10-26T20:18:18","modified_gmt":"2024-10-26T12:18:18","slug":"redis%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b8%85%e7%90%86%e6%8c%87%e5%ae%9a%e5%89%8d%e7%b6%b4%e7%9a%84%e6%9c%89%e6%95%88%e6%96%b9%e6%b3%95%ef%bc%88redis%e6%b8%85%e7%90%86%e6%8c%87%e5%ae%9a%e5%89%8d%e7%b6%b4","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129263\/","title":{"rendered":"Redis\u6578\u64da\u5eab\u6e05\u7406\u6307\u5b9a\u524d\u7db4\u7684\u6709\u6548\u65b9\u6cd5\uff08redis\u6e05\u7406\u6307\u5b9a\u524d\u7db4\uff09"},"content":{"rendered":"<h1 id=\"redis%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b8%85%e7%90%86%e6%8c%87%e5%ae%9a%e5%89%8d%e7%b6%b4%e7%9a%84%e6%9c%89%e6%95%88%e6%96%b9%e6%b3%95-sBlJgyyKIk\">Redis\u6578\u64da\u5eab\u6e05\u7406\u6307\u5b9a\u524d\u7db4\u7684\u6709\u6548\u65b9\u6cd5<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u5834\u666f\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u5b9a\u671f\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u8b8a\u5f97\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u5730\u6e05\u7406Redis\u4e2d\u6307\u5b9a\u524d\u7db4\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%b8%85%e7%90%86redis%e6%95%b8%e6%93%9a-sBlJgyyKIk\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6e05\u7406Redis\u6578\u64da<\/h2>\n<p>\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0cRedis\u6578\u64da\u5eab\u4e2d\u53ef\u80fd\u6703\u7a4d\u7d2f\u5927\u91cf\u4e0d\u518d\u4f7f\u7528\u7684\u6578\u64da\u3002\u9019\u4e9b\u6578\u64da\u4e0d\u50c5\u4f54\u7528\u5b58\u5132\u7a7a\u9593\uff0c\u9084\u53ef\u80fd\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\u3002\u5b9a\u671f\u6e05\u7406\u53ef\u4ee5\u5e6b\u52a9\u91cb\u653e\u8cc7\u6e90\uff0c\u63d0\u5347\u67e5\u8a62\u6548\u7387\uff0c\u4e26\u6e1b\u5c11\u5167\u5b58\u4f7f\u7528\u3002<\/p>\n<h2 id=\"%e6%b8%85%e7%90%86%e6%8c%87%e5%ae%9a%e5%89%8d%e7%b6%b4%e7%9a%84%e6%95%b8%e6%93%9a-sBlJgyyKIk\">\u6e05\u7406\u6307\u5b9a\u524d\u7db4\u7684\u6578\u64da<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u6578\u64da\u662f\u4ee5\u9375\u503c\u5c0d\u7684\u5f62\u5f0f\u5b58\u5132\u7684\u3002\u82e5\u8981\u6e05\u7406\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4-sBlJgyyKIk\">1. \u4f7f\u7528SCAN\u547d\u4ee4<\/h3>\n<p>SCAN\u547d\u4ee4\u662f\u4e00\u7a2e\u975e\u963b\u585e\u7684\u904d\u6b77\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u4f86\u67e5\u627e\u7b26\u5408\u7279\u5b9a\u6a21\u5f0f\u7684\u9375\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u512a\u52e2\u5728\u65bc\u4e0d\u6703\u4e00\u6b21\u6027\u8fd4\u56de\u6240\u6709\u9375\uff0c\u5f9e\u800c\u907f\u514d\u4e86\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\u3002<\/p>\n<pre><code>SCAN 0 MATCH prefix:* COUNT 100<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c07\u5f9e\u6e38\u6a190\u958b\u59cb\uff0c\u67e5\u627e\u6240\u6709\u4ee5\u201cprefix:\u201d\u958b\u982d\u7684\u9375\uff0c\u6bcf\u6b21\u8fd4\u56de\u6700\u591a100\u500b\u9375\u3002\u53ef\u4ee5\u6839\u64da\u9700\u8981\u8abf\u6574COUNT\u7684\u503c\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8del%e5%91%bd%e4%bb%a4%e5%88%aa%e9%99%a4%e9%8d%b5-sBlJgyyKIk\">2. \u4f7f\u7528DEL\u547d\u4ee4\u522a\u9664\u9375<\/h3>\n<p>\u4e00\u65e6\u627e\u5230\u4e86\u7b26\u5408\u689d\u4ef6\u7684\u9375\uff0c\u53ef\u4ee5\u4f7f\u7528DEL\u547d\u4ee4\u522a\u9664\u5b83\u5011\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>DEL key1 key2 key3<\/code><\/pre>\n<p>\u5728\u5be6\u969b\u64cd\u4f5c\u4e2d\uff0c\u60a8\u53ef\u4ee5\u5c07\u627e\u5230\u7684\u9375\u5b58\u5132\u5728\u4e00\u500b\u5217\u8868\u4e2d\uff0c\u7136\u5f8c\u4e00\u6b21\u6027\u522a\u9664\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac%e9%80%b2%e8%a1%8c%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4-sBlJgyyKIk\">3. \u4f7f\u7528Lua\u8173\u672c\u9032\u884c\u6279\u91cf\u522a\u9664<\/h3>\n<p>\u5982\u679c\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6279\u91cf\u522a\u9664\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528Lua\u8173\u672c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u8173\u672c\uff1a<\/p>\n<pre><code>\nlocal keys = redis.call('KEYS', 'prefix:*')\nfor i=1,#keys,5000 do\n    redis.call('DEL', unpack(keys, i, math.min(i+4999, #keys)))\nend\n<\/code><\/pre>\n<p>\u9019\u6bb5\u8173\u672c\u5c07\u67e5\u627e\u6240\u6709\u4ee5\u201cprefix:\u201d\u958b\u982d\u7684\u9375\uff0c\u4e26\u6bcf\u6b21\u522a\u9664\u6700\u591a5000\u500b\u9375\uff0c\u5f9e\u800c\u907f\u514d\u4e00\u6b21\u6027\u522a\u9664\u904e\u591a\u9375\u5c0e\u81f4\u7684\u6027\u80fd\u554f\u984c\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-sBlJgyyKIk\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u751f\u7522\u74b0\u5883\u4e2d\u4f7f\u7528KEYS\u547d\u4ee4\u6642\u9700\u8b39\u614e\uff0c\u56e0\u70ba\u5b83\u6703\u963b\u585eRedis\uff0c\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<li>\u5efa\u8b70\u5728\u4f4e\u5cf0\u671f\u9032\u884c\u6e05\u7406\u64cd\u4f5c\uff0c\u4ee5\u6e1b\u5c11\u5c0d\u7528\u6236\u7684\u5f71\u97ff\u3002<\/li>\n<li>\u5728\u522a\u9664\u6578\u64da\u4e4b\u524d\uff0c\u6700\u597d\u5148\u9032\u884c\u5099\u4efd\uff0c\u4ee5\u9632\u8aa4\u522a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sBlJgyyKIk\">\u7e3d\u7d50<\/h2>\n<p>\u6e05\u7406Redis\u4e2d\u6307\u5b9a\u524d\u7db4\u7684\u6578\u64da\u662f\u4e00\u9805\u91cd\u8981\u7684\u7dad\u8b77\u5de5\u4f5c\uff0c\u53ef\u4ee5\u5e6b\u52a9\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u548c\u8cc7\u6e90\u5229\u7528\u7387\u3002\u901a\u904e\u4f7f\u7528SCAN\u547d\u4ee4\u3001DEL\u547d\u4ee4\u548cLua\u8173\u672c\u7b49\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u6578\u64da\u5eab\u4e2d\u6e05\u7406\u6307\u5b9a\u524d\u7db4\u7684\u6709\u6548\u65b9\u6cd5\uff0c\u63d0\u5347\u6027\u80fd\u8207\u5b58\u5132\u6548\u7387\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\u6d41\u7a0b\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-129263","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129263","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=129263"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129263\/revisions"}],"predecessor-version":[{"id":129264,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129263\/revisions\/129264"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}