{"id":185164,"date":"2024-11-10T19:16:20","date_gmt":"2024-11-10T11:16:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/185164\/"},"modified":"2024-11-10T19:16:21","modified_gmt":"2024-11-10T11:16:21","slug":"%e4%bd%bf%e7%94%a8redis%e9%81%a0%e7%a8%8b%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e7%9a%84%e6%96%b9%e6%b3%95%ef%bc%88redis%e9%81%a0%e7%a8%8b%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/185164\/","title":{"rendered":"\u4f7f\u7528Redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u65b9\u6cd5\uff08redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8redis%e9%81%a0%e7%a8%8b%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e7%9a%84%e6%96%b9%e6%b3%95-pReNqDZbUJ\">\u4f7f\u7528Redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u65b9\u6cd5<\/h1>\n<p>Redis\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u548c\u522a\u9664\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u9032\u884c\u9060\u7a0b\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u65b9\u6cd5\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u9ad8\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-pReNqDZbUJ\">Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728\u6df1\u5165\u8a0e\u8ad6\u6279\u91cf\u522a\u9664\u4e4b\u524d\uff0c\u6211\u5011\u9700\u8981\u4e86\u89e3Redis\u7684\u4e00\u4e9b\u57fa\u672c\u6982\u5ff5\u3002Redis\u662f\u4e00\u500b\u57fa\u65bc\u5167\u5b58\u7684\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u5b83\u7684\u9ad8\u6027\u80fd\u7279\u6027\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7684\u9996\u9078\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4-pReNqDZbUJ\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6279\u91cf\u522a\u9664<\/h2>\n<p>\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u6578\u64da\u5eab\u4e2d\u53ef\u80fd\u6703\u7a4d\u7d2f\u5927\u91cf\u4e0d\u518d\u9700\u8981\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\u56e0\u6b64\uff0c\u5b9a\u671f\u9032\u884c\u6279\u91cf\u522a\u9664\u662f\u7dad\u8b77\u6578\u64da\u5eab\u5065\u5eb7\u7684\u91cd\u8981\u6b65\u9a5f\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e9%80%b2%e8%a1%8c%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%96%b9%e6%b3%95-pReNqDZbUJ\">\u4f7f\u7528Redis\u9032\u884c\u6279\u91cf\u522a\u9664\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u6279\u91cf\u522a\u9664\u6578\u64da\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u5f0f\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8del%e5%91%bd%e4%bb%a4-pReNqDZbUJ\">1. \u4f7f\u7528DEL\u547d\u4ee4<\/h3>\n<p>\u6700\u76f4\u63a5\u7684\u65b9\u5f0f\u662f\u4f7f\u7528DEL\u547d\u4ee4\u522a\u9664\u6307\u5b9a\u7684\u9375\u3002\u9019\u7a2e\u65b9\u6cd5\u9069\u5408\u65bc\u5c11\u91cf\u9375\u7684\u522a\u9664\uff0c\u4f46\u5c0d\u65bc\u5927\u91cf\u9375\u7684\u522a\u9664\uff0c\u6548\u7387\u8f03\u4f4e\u3002<\/p>\n<pre><code>DEL key1 key2 key3<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8unlink%e5%91%bd%e4%bb%a4-pReNqDZbUJ\">2. \u4f7f\u7528UNLINK\u547d\u4ee4<\/h3>\n<p>UNLINK\u547d\u4ee4\u8207DEL\u985e\u4f3c\uff0c\u4f46\u5b83\u662f\u975e\u963b\u585e\u7684\uff0c\u9069\u5408\u65bc\u522a\u9664\u5927\u91cf\u9375\u3002\u9019\u610f\u5473\u8457UNLINK\u547d\u4ee4\u6703\u7acb\u5373\u8fd4\u56de\uff0c\u800c\u5be6\u969b\u7684\u522a\u9664\u64cd\u4f5c\u6703\u5728\u5f8c\u53f0\u9032\u884c\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5c0d\u6027\u80fd\u7684\u5f71\u97ff\u3002<\/p>\n<pre><code>UNLINK key1 key2 key3<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4%e9%85%8d%e5%90%88del%e6%88%96unlink-pReNqDZbUJ\">3. \u4f7f\u7528SCAN\u547d\u4ee4\u914d\u5408DEL\u6216UNLINK<\/h3>\n<p>\u7576\u9700\u8981\u522a\u9664\u7684\u9375\u975e\u5e38\u591a\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528SCAN\u547d\u4ee4\u4f86\u904d\u6b77\u9375\uff0c\u7136\u5f8c\u4f7f\u7528DEL\u6216UNLINK\u9032\u884c\u522a\u9664\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u907f\u514d\u4e00\u6b21\u6027\u52a0\u8f09\u6240\u6709\u9375\u800c\u5c0e\u81f4\u7684\u6027\u80fd\u554f\u984c\u3002<\/p>\n<pre><code>\nSCAN cursor\nDEL key1 key2 ...\n<\/code><\/pre>\n<h4 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc%ef%bc%9a-pReNqDZbUJ\">\u793a\u4f8b\u4ee3\u78bc\uff1a<\/h4>\n<pre><code>\nlocal cursor = \"0\"\nrepeat\n    local result = redis.call(\"SCAN\", cursor)\n    cursor = result[1]\n    for i, key in ipairs(result[2]) do\n        redis.call(\"UNLINK\", key)  -- \u6216\u8005\u4f7f\u7528 DEL\n    end\nuntil cursor == \"0\"\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-pReNqDZbUJ\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u9032\u884c\u6279\u91cf\u522a\u9664\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u522a\u9664\u7684\u6578\u64da\u4e0d\u518d\u9700\u8981\uff0c\u4ee5\u514d\u9020\u6210\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li>\u5728\u9ad8\u6d41\u91cf\u7684\u751f\u7522\u74b0\u5883\u4e2d\uff0c\u5efa\u8b70\u5728\u4f4e\u5cf0\u671f\u9032\u884c\u6279\u91cf\u522a\u9664\u64cd\u4f5c\u3002<\/li>\n<li>\u8003\u616e\u4f7f\u7528UNLINK\u800c\u4e0d\u662fDEL\uff0c\u4ee5\u6e1b\u5c11\u5c0d\u7cfb\u7d71\u6027\u80fd\u7684\u5f71\u97ff\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-pReNqDZbUJ\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528Redis\u9032\u884c\u9060\u7a0b\u6279\u91cf\u522a\u9664\u6578\u64da\u662f\u4e00\u500b\u6709\u6548\u7684\u6578\u64da\u7ba1\u7406\u7b56\u7565\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528DEL\u3001UNLINK\u548cSCAN\u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9ad8\u6548\u5730\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\uff0c\u4fdd\u6301\u6578\u64da\u5eab\u7684\u5065\u5eb7\u904b\u884c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7ba1\u7406\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u4f7f\u7528Redis\u9060\u7a0b\u6279\u91cf\u522a\u9664\u6578\u64da\u7684\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u7c21\u5316\u64cd\u4f5c\u6d41\u7a0b\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u512a\u5316\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-185164","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185164","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=185164"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185164\/revisions"}],"predecessor-version":[{"id":185165,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185164\/revisions\/185165"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=185164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=185164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=185164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}