{"id":194087,"date":"2024-11-13T03:39:19","date_gmt":"2024-11-12T19:39:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194087\/"},"modified":"2024-11-13T03:39:20","modified_gmt":"2024-11-12T19:39:20","slug":"%e4%b8%80%e9%8d%b5%e6%b8%85%e7%a9%ba%e5%bf%ab%e9%80%9f%e5%88%aa%e9%99%a4redis%e6%95%b8%e6%93%9a%ef%bc%88%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4redis%e6%95%b8%e6%93%9a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194087\/","title":{"rendered":"\u4e00\u9375\u6e05\u7a7a\u5feb\u901f\u522a\u9664Redis\u6578\u64da\uff08\u6279\u91cf\u522a\u9664redis\u6578\u64da\uff09"},"content":{"rendered":"<h1 id=\"%e4%b8%80%e9%8d%b5%e6%b8%85%e7%a9%ba%e5%bf%ab%e9%80%9f%e5%88%aa%e9%99%a4redis%e6%95%b8%e6%93%9a%ef%bc%88%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4redis%e6%95%b8%e6%93%9a%ef%bc%89-JNAsHJrgLU\">\u4e00\u9375\u6e05\u7a7a\u5feb\u901f\u522a\u9664Redis\u6578\u64da\uff08\u6279\u91cf\u522a\u9664redis\u6578\u64da\uff09<\/h1>\n<p>Redis\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u5834\u666f\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u7ba1\u7406Redis\u6578\u64da\u7684\u9700\u6c42\u4e5f\u65e5\u76ca\u589e\u52a0\u3002\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u5feb\u901f\u6e05\u7a7a\u6216\u6279\u91cf\u522a\u9664Redis\u4e2d\u7684\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u5730\u9032\u884c\u9019\u4e9b\u64cd\u4f5c\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"redis%e6%95%b8%e6%93%9a%e5%88%aa%e9%99%a4%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-JNAsHJrgLU\">Redis\u6578\u64da\u522a\u9664\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u6578\u64da\u662f\u4ee5\u9375\u503c\u5c0d\u7684\u5f62\u5f0f\u5b58\u5132\u7684\u3002\u6bcf\u500b\u9375\u90fd\u5c0d\u61c9\u4e00\u500b\u503c\uff0c\u9019\u4e9b\u503c\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u591a\u7a2e\u6578\u64da\u985e\u578b\u3002\u7576\u9700\u8981\u522a\u9664\u6578\u64da\u6642\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u55ae\u500b\u9375\u6216\u6279\u91cf\u522a\u9664\u591a\u500b\u9375\u3002<\/p>\n<h2 id=\"%e4%b8%80%e9%8d%b5%e6%b8%85%e7%a9%baredis%e6%95%b8%e6%93%9a-JNAsHJrgLU\">\u4e00\u9375\u6e05\u7a7aRedis\u6578\u64da<\/h2>\n<p>\u5982\u679c\u9700\u8981\u6e05\u7a7a\u6574\u500bRedis\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>FLUSHDB<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u522a\u9664\u7576\u524d\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709\u9375\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u9019\u662f\u4e00\u500b\u4e0d\u53ef\u9006\u7684\u64cd\u4f5c\uff0c\u57f7\u884c\u5f8c\u5c07\u7121\u6cd5\u6062\u5fa9\u6578\u64da\u3002\u56e0\u6b64\uff0c\u5728\u57f7\u884c\u6b64\u547d\u4ee4\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\u3002<\/p>\n<h2 id=\"%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4redis%e6%95%b8%e6%93%9a-JNAsHJrgLU\">\u6279\u91cf\u522a\u9664Redis\u6578\u64da<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u53ea\u60f3\u522a\u9664\u7b26\u5408\u7279\u5b9a\u689d\u4ef6\u7684\u9375\u3002\u9019\u6642\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u9032\u884c\u6279\u91cf\u522a\u9664\uff1a<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4-JNAsHJrgLU\">\u4f7f\u7528SCAN\u547d\u4ee4<\/h3>\n<p>Redis\u63d0\u4f9b\u4e86SCAN\u547d\u4ee4\uff0c\u53ef\u4ee5\u7528\u4f86\u904d\u6b77\u6578\u64da\u5eab\u4e2d\u7684\u9375\u3002\u9019\u500b\u547d\u4ee4\u4e0d\u6703\u963b\u585eRedis\uff0c\u9069\u5408\u7528\u65bc\u5927\u6578\u64da\u91cf\u7684\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528SCAN\u547d\u4ee4\u6279\u91cf\u522a\u9664\u9375\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SCAN 0 MATCH pattern* COUNT 1000<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u7b26\u5408\u6a21\u5f0f\u7684\u9375\uff0c\u7136\u5f8c\u53ef\u4ee5\u4f7f\u7528DEL\u547d\u4ee4\u522a\u9664\u9019\u4e9b\u9375\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5b8c\u6574\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nlocal cursor = \"0\"\nrepeat\n    local result = redis.call(\"SCAN\", cursor, \"MATCH\", \"pattern*\", \"COUNT\", 1000)\n    cursor = result[1]\n    for i, key in ipairs(result[2]) do\n        redis.call(\"DEL\", key)\n    end\nuntil cursor == \"0\"\n<\/code><\/pre>\n<h3 id=\"%e4%bd%bf%e7%94%a8keys%e5%91%bd%e4%bb%a4%ef%bc%88%e4%b8%8d%e5%bb%ba%e8%ad%b0%ef%bc%89-JNAsHJrgLU\">\u4f7f\u7528KEYS\u547d\u4ee4\uff08\u4e0d\u5efa\u8b70\uff09<\/h3>\n<p>\u53e6\u4e00\u7a2e\u65b9\u6cd5\u662f\u4f7f\u7528KEYS\u547d\u4ee4\u4f86\u7372\u53d6\u6240\u6709\u7b26\u5408\u689d\u4ef6\u7684\u9375\uff0c\u4f46\u9019\u7a2e\u65b9\u6cd5\u5728\u6578\u64da\u91cf\u8f03\u5927\u6642\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u554f\u984c\uff0c\u56e0\u6b64\u4e0d\u5efa\u8b70\u5728\u751f\u7522\u74b0\u5883\u4e2d\u4f7f\u7528\uff1a<\/p>\n<pre><code>KEYS pattern*<\/code><\/pre>\n<p>\u7372\u53d6\u5230\u9375\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528DEL\u547d\u4ee4\u522a\u9664\u5b83\u5011\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u793a\u4f8b\u4ee3\u78bc\u5982\u4e0b\uff1a<\/p>\n<pre><code>\nlocal keys = redis.call(\"KEYS\", \"pattern*\")\nfor i, key in ipairs(keys) do\n    redis.call(\"DEL\", key)\nend\n<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-JNAsHJrgLU\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u52d9\u5fc5\u78ba\u8a8d\u8981\u522a\u9664\u7684\u6578\u64da\uff0c\u4ee5\u514d\u8aa4\u522a\u91cd\u8981\u6578\u64da\u3002<\/li>\n<li>\u5efa\u8b70\u5728\u751f\u7522\u74b0\u5883\u4e2d\u4f7f\u7528SCAN\u547d\u4ee4\u9032\u884c\u904d\u6b77\uff0c\u907f\u514d\u4f7f\u7528KEYS\u547d\u4ee4\u3002<\/li>\n<li>\u5b9a\u671f\u5099\u4efdRedis\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-JNAsHJrgLU\">\u7e3d\u7d50<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u5feb\u901f\u6e05\u7a7a\u6216\u6279\u91cf\u522a\u9664\u6578\u64da\u662f\u5e38\u898b\u7684\u9700\u6c42\u3002\u901a\u904e\u4f7f\u7528FLUSHDB\u547d\u4ee4\u53ef\u4ee5\u4e00\u9375\u6e05\u7a7a\u6574\u500b\u6578\u64da\u5eab\uff0c\u800c\u4f7f\u7528SCAN\u547d\u4ee4\u5247\u53ef\u4ee5\u6709\u6548\u5730\u6279\u91cf\u522a\u9664\u7b26\u5408\u689d\u4ef6\u7684\u9375\u3002\u7121\u8ad6\u9078\u64c7\u54ea\u7a2e\u65b9\u6cd5\uff0c\u90fd\u61c9\u8b39\u614e\u64cd\u4f5c\uff0c\u4e26\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684Redis\u670d\u52d9\uff0cServer.HK\u63d0\u4f9b\u4e86\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u9375\u6e05\u7a7a\u5feb\u901f\u522a\u9664Redis\u6578\u64da\uff0c\u8f15\u9b06\u6279\u91cf\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u7c21\u5316\u64cd\u4f5c\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-194087","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194087","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=194087"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194087\/revisions"}],"predecessor-version":[{"id":194088,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194087\/revisions\/194088"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}