{"id":166339,"date":"2024-11-05T16:09:06","date_gmt":"2024-11-05T08:09:06","guid":{"rendered":"https:\/\/server.hk\/cnblog\/166339\/"},"modified":"2024-11-05T16:09:08","modified_gmt":"2024-11-05T08:09:08","slug":"%e5%bf%ab%e9%80%9f%e6%b8%85%e7%a9%baredis%e7%89%b9%e5%ae%9a%e5%89%8d%e7%b6%b4%e6%95%b8%e6%93%9a%ef%bc%88redis%e6%b8%85%e7%a9%ba%e7%89%b9%e5%ae%9a%e5%89%8d%e7%b6%b4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/166339\/","title":{"rendered":"\u5feb\u901f\u6e05\u7a7aRedis\u7279\u5b9a\u524d\u7db4\u6578\u64da\uff08redis\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\uff09"},"content":{"rendered":"<h1 id=\"%e5%bf%ab%e9%80%9f%e6%b8%85%e7%a9%baredis%e7%89%b9%e5%ae%9a%e5%89%8d%e7%b6%b4%e6%95%b8%e6%93%9a%ef%bc%88redis%e6%b8%85%e7%a9%ba%e7%89%b9%e5%ae%9a%e5%89%8d%e7%b6%b4%ef%bc%89-gUdAmkJZJF\">\u5feb\u901f\u6e05\u7a7aRedis\u7279\u5b9a\u524d\u7db4\u6578\u64da\uff08redis\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\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\u61c9\u7528\u7684\u589e\u9577\uff0cRedis\u4e2d\u7684\u6578\u64da\u91cf\u4e5f\u6703\u96a8\u4e4b\u589e\u52a0\u3002\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u80fd\u9700\u8981\u5feb\u901f\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da\uff0c\u4ee5\u91cb\u653e\u7a7a\u9593\u6216\u91cd\u7f6e\u67d0\u4e9b\u529f\u80fd\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u5730\u6e05\u7a7aRedis\u4e2d\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%b8%85%e7%a9%ba%e7%89%b9%e5%ae%9a%e5%89%8d%e7%b6%b4%e7%9a%84%e6%95%b8%e6%93%9a-gUdAmkJZJF\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u7684\u904e\u7a0b\u4e2d\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\uff0c\u5c0e\u81f4\u9700\u8981\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da\uff1a<\/p>\n<ul>\n<li><strong>\u6e2c\u8a66\u74b0\u5883\u91cd\u7f6e\uff1a<\/strong>\u5728\u958b\u767c\u6216\u6e2c\u8a66\u904e\u7a0b\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u5b9a\u671f\u6e05\u7a7a\u67d0\u4e9b\u6578\u64da\u4ee5\u9032\u884c\u91cd\u65b0\u6e2c\u8a66\u3002<\/li>\n<li><strong>\u6578\u64da\u904e\u671f\uff1a<\/strong>\u67d0\u4e9b\u6578\u64da\u53ef\u80fd\u4e0d\u518d\u9700\u8981\uff0c\u6e05\u7a7a\u53ef\u4ee5\u91cb\u653e\u5167\u5b58\u8cc7\u6e90\u3002<\/li>\n<li><strong>\u6578\u64da\u932f\u8aa4\uff1a<\/strong>\u5982\u679c\u767c\u73fe\u67d0\u4e9b\u6578\u64da\u5b58\u5728\u932f\u8aa4\uff0c\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da\u53ef\u4ee5\u5feb\u901f\u89e3\u6c7a\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e5%91%bd%e4%bb%a4%e6%b8%85%e7%a9%ba%e7%89%b9%e5%ae%9a%e5%89%8d%e7%b6%b4%e7%9a%84%e6%95%b8%e6%93%9a-gUdAmkJZJF\">\u4f7f\u7528Redis\u547d\u4ee4\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da<\/h2>\n<p>Redis\u672c\u8eab\u4e26\u4e0d\u63d0\u4f9b\u76f4\u63a5\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\u6578\u64da\u7684\u547d\u4ee4\uff0c\u4f46\u53ef\u4ee5\u901a\u904e\u7d44\u5408\u4f7f\u7528\u4e00\u4e9b\u547d\u4ee4\u4f86\u9054\u6210\u9019\u4e00\u76ee\u7684\u3002\u4ee5\u4e0b\u662f\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"%e6%96%b9%e6%b3%95%e4%b8%80%ef%bc%9a%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4-gUdAmkJZJF\">\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528SCAN\u547d\u4ee4<\/h3>\n<p>SCAN\u547d\u4ee4\u53ef\u4ee5\u7528\u4f86\u904d\u6b77Redis\u4e2d\u7684\u9375\uff0c\u4e26\u4e14\u4e0d\u6703\u963b\u585e\u670d\u52d9\u5668\u3002\u9019\u4f7f\u5f97\u5b83\u6210\u70ba\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\u6578\u64da\u7684\u7406\u60f3\u9078\u64c7\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SCAN\u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>redis-cli --scan --pattern \"prefix:*\" | xargs redis-cli del<\/code><\/pre>\n<p>\u5728\u9019\u500b\u547d\u4ee4\u4e2d\uff0c`&#8211;scan`\u9078\u9805\u7528\u65bc\u904d\u6b77\u6240\u6709\u9375\uff0c`&#8211;pattern &#8220;prefix:*&#8221;`\u6307\u5b9a\u4e86\u8981\u5339\u914d\u7684\u524d\u7db4\uff0c`xargs redis-cli del`\u5247\u5c07\u5339\u914d\u5230\u7684\u9375\u50b3\u905e\u7d66DEL\u547d\u4ee4\u9032\u884c\u522a\u9664\u3002<\/p>\n<h3 id=\"%e6%96%b9%e6%b3%95%e4%ba%8c%ef%bc%9a%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac-gUdAmkJZJF\">\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528Lua\u8173\u672c<\/h3>\n<p>\u53e6\u4e00\u7a2e\u65b9\u6cd5\u662f\u4f7f\u7528Lua\u8173\u672c\u4f86\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u512a\u52e2\u5728\u65bc\u53ef\u4ee5\u5728Redis\u670d\u52d9\u5668\u7aef\u57f7\u884c\uff0c\u6e1b\u5c11\u4e86\u7db2\u7d61\u5ef6\u9072\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Lua\u8173\u672c\u793a\u4f8b\uff1a<\/p>\n<pre><code>local keys = redis.call('KEYS', 'prefix:*')\nfor i=1,#keys,5000 do\n    redis.call('DEL', unpack(keys, i, math.min(i+4999, #keys)))\nend<\/code><\/pre>\n<p>\u9019\u6bb5\u8173\u672c\u9996\u5148\u4f7f\u7528`KEYS`\u547d\u4ee4\u7372\u53d6\u6240\u6709\u5339\u914d\u7684\u9375\uff0c\u7136\u5f8c\u5206\u6279\u522a\u9664\u4ee5\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-gUdAmkJZJF\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u6e05\u7a7a\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da\u6642\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u5f71\u97ff\uff1a<\/strong>\u5927\u91cf\u522a\u9664\u64cd\u4f5c\u53ef\u80fd\u6703\u5f71\u97ffRedis\u7684\u6027\u80fd\uff0c\u5efa\u8b70\u5728\u4f4e\u5cf0\u671f\u9032\u884c\u3002<\/li>\n<li><strong>\u6578\u64da\u5099\u4efd\uff1a<\/strong>\u5728\u522a\u9664\u6578\u64da\u4e4b\u524d\uff0c\u6700\u597d\u5148\u9032\u884c\u6578\u64da\u5099\u4efd\uff0c\u4ee5\u9632\u6b62\u8aa4\u522a\u9664\u91cd\u8981\u6578\u64da\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u74b0\u5883\uff1a<\/strong>\u5728\u751f\u7522\u74b0\u5883\u4e2d\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\u9a57\u8b49\u8173\u672c\u7684\u6b63\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-gUdAmkJZJF\">\u7e3d\u7d50<\/h2>\n<p>\u6e05\u7a7aRedis\u4e2d\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\uff0c\u901a\u904e\u4f7f\u7528SCAN\u547d\u4ee4\u6216Lua\u8173\u672c\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u9054\u6210\u9019\u4e00\u76ee\u7684\u3002\u5728\u9032\u884c\u6b64\u64cd\u4f5c\u6642\uff0c\u52d9\u5fc5\u6ce8\u610f\u6027\u80fd\u5f71\u97ff\u548c\u6578\u64da\u5099\u4efd\uff0c\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6578\u64da\u7684\u5b89\u5168\u6027\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u4f3a\u670d\u5668<\/a>\u4f86\u63d0\u5347\u60a8\u7684\u61c9\u7528\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5feb\u901f\u6e05\u7a7aRedis\u4e2d\u7279\u5b9a\u524d\u7db4\u7684\u6578\u64da\uff0c\u7c21\u55ae\u9ad8\u6548\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u7dad\u8b77Redis\u6578\u64da\u5eab\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-166339","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166339","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=166339"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166339\/revisions"}],"predecessor-version":[{"id":166340,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166339\/revisions\/166340"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=166339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=166339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=166339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}