{"id":196786,"date":"2024-11-14T02:30:28","date_gmt":"2024-11-13T18:30:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196786\/"},"modified":"2024-11-14T02:30:29","modified_gmt":"2024-11-13T18:30:29","slug":"%e9%87%8d%e6%96%b0%e6%b7%bb%e7%a3%9a%e5%8a%a0%e7%93%a6redis%e6%b8%85%e5%ba%ab%e5%ad%98%ef%bc%88redis%e6%b8%85%e5%ba%ab%e5%ad%98%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196786\/","title":{"rendered":"\u91cd\u65b0\u6dfb\u78da\u52a0\u74e6Redis\u6e05\u5eab\u5b58\uff08redis\u6e05\u5eab\u5b58\uff09"},"content":{"rendered":"<h1 id=\"%e9%87%8d%e6%96%b0%e6%b7%bb%e7%a3%9a%e5%8a%a0%e7%93%a6redis%e6%b8%85%e5%ba%ab%e5%ad%98%ef%bc%88redis%e6%b8%85%e5%ba%ab%e5%ad%98%ef%bc%89-OnXIOHLiBf\">\u91cd\u65b0\u6dfb\u78da\u52a0\u74e6Redis\u6e05\u5eab\u5b58\uff08redis\u6e05\u5eab\u5b58\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u3002\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u589e\u9577\uff0cRedis\u7684\u6578\u64da\u5eab\u53ef\u80fd\u6703\u8b8a\u5f97\u81c3\u816b\uff0c\u9019\u6642\u5019\u9032\u884c\u6e05\u5eab\u5b58\uff08\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\uff09\u5c31\u986f\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u6e05\u5eab\u5b58\u7684\u5fc5\u8981\u6027\u3001\u65b9\u6cd5\u53ca\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e6%b8%85%e5%ba%ab%e5%ad%98%ef%bc%9f-OnXIOHLiBf\">\u70ba\u4ec0\u9ebc\u9700\u8981\u6e05\u5eab\u5b58\uff1f<\/h2>\n<p>\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0cRedis\u6578\u64da\u5eab\u4e2d\u53ef\u80fd\u6703\u7a4d\u7d2f\u5927\u91cf\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002\u9019\u4e9b\u6578\u64da\u53ef\u80fd\u662f\u904e\u671f\u7684\u7de9\u5b58\u3001\u7121\u6548\u7684\u6703\u8a71\u4fe1\u606f\u6216\u662f\u5197\u9918\u7684\u6578\u64da\u3002\u6e05\u7406\u9019\u4e9b\u6578\u64da\u4e0d\u50c5\u53ef\u4ee5\u91cb\u653e\u5167\u5b58\uff0c\u9084\u80fd\u63d0\u9ad8\u7cfb\u7d71\u6027\u80fd\uff0c\u6e1b\u5c11\u67e5\u8a62\u5ef6\u9072\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u6e05\u5eab\u5b58\u7684\u4e3b\u8981\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0c\u67e5\u8a62\u548c\u64cd\u4f5c\u7684\u901f\u5ea6\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\u3002\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u53ef\u4ee5\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u7bc0\u7701\u5167\u5b58\uff1a<\/strong>Redis\u662f\u4e00\u500b\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5167\u5b58\u7684\u4f7f\u7528\u6548\u7387\u76f4\u63a5\u5f71\u97ff\u5230\u61c9\u7528\u7684\u904b\u884c\u3002\u6e05\u7406\u904e\u671f\u6216\u5197\u9918\u7684\u6578\u64da\u53ef\u4ee5\u91cb\u653e\u5167\u5b58\u8cc7\u6e90\u3002<\/li>\n<li><strong>\u7dad\u8b77\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u5b9a\u671f\u6e05\u7406\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u4e00\u81f4\u6027\uff0c\u907f\u514d\u56e0\u904e\u671f\u6578\u64da\u5c0e\u81f4\u7684\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e6%b8%85%e5%ba%ab%e5%ad%98%e7%9a%84%e6%96%b9%e6%b3%95-OnXIOHLiBf\">Redis\u6e05\u5eab\u5b58\u7684\u65b9\u6cd5<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u6e05\u7406\u6578\u64da\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u6e05\u5eab\u5b58\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-OnXIOHLiBf\">1. \u4f7f\u7528\u904e\u671f\u6642\u9593<\/h3>\n<p>Redis\u652f\u6301\u70ba\u6bcf\u500b\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u7576\u6642\u9593\u5230\u9054\u5f8c\uff0c\u8a72\u9375\u6703\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u662f\u4e00\u7a2e\u7c21\u55ae\u800c\u6709\u6548\u7684\u6e05\u5eab\u5b58\u65b9\u6cd5\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>SET mykey \"Hello\"\nEXPIRE mykey 10  # 10\u79d2\u5f8c\u81ea\u52d5\u522a\u9664\n<\/code><\/pre>\n<h3 id=\"2-%e4%b8%bb%e5%8b%95%e5%88%aa%e9%99%a4-OnXIOHLiBf\">2. \u4e3b\u52d5\u522a\u9664<\/h3>\n<p>\u5c0d\u65bc\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528DEL\u547d\u4ee4\u4e3b\u52d5\u522a\u9664\uff1a<\/p>\n<pre><code>DEL mykey  # \u522a\u9664\u6307\u5b9a\u7684\u9375\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8scan%e5%91%bd%e4%bb%a4-OnXIOHLiBf\">3. \u4f7f\u7528SCAN\u547d\u4ee4<\/h3>\n<p>\u7576\u9700\u8981\u6e05\u7406\u5927\u91cf\u6578\u64da\u6642\uff0c\u4f7f\u7528SCAN\u547d\u4ee4\u53ef\u4ee5\u907f\u514d\u963b\u585eRedis\u670d\u52d9\u5668\u3002SCAN\u547d\u4ee4\u6703\u9010\u6b65\u904d\u6b77\u6578\u64da\u5eab\uff0c\u9069\u5408\u7528\u65bc\u5927\u898f\u6a21\u6578\u64da\u7684\u6e05\u7406\uff1a<\/p>\n<pre><code>SCAN 0 MATCH pattern:* COUNT 100\n<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u7b26\u5408\u6a21\u5f0f\u7684\u9375\uff0c\u7136\u5f8c\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9032\u884c\u522a\u9664\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8redis%e7%9a%84%e5%85%a7%e5%bb%ba%e6%b8%85%e7%90%86%e7%ad%96%e7%95%a5-OnXIOHLiBf\">4. \u4f7f\u7528Redis\u7684\u5167\u5efa\u6e05\u7406\u7b56\u7565<\/h3>\n<p>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u5167\u5efa\u7684\u6e05\u7406\u7b56\u7565\uff0c\u5982LRU\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u3001LFU\uff08\u6700\u4e0d\u5e38\u4f7f\u7528\uff09\u7b49\u3002\u9019\u4e9b\u7b56\u7565\u53ef\u4ee5\u81ea\u52d5\u7ba1\u7406\u5167\u5b58\uff0c\u522a\u9664\u4e0d\u5e38\u7528\u7684\u6578\u64da\u3002\u53ef\u4ee5\u5728Redis\u914d\u7f6e\u6587\u4ef6\u4e2d\u8a2d\u7f6e\uff1a<\/p>\n<pre><code>maxmemory-policy allkeys-lru\n<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-OnXIOHLiBf\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u9032\u884cRedis\u6e05\u5eab\u5b58\u6642\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li><strong>\u5b9a\u671f\u6aa2\u67e5\uff1a<\/strong>\u5b9a\u671f\u6aa2\u67e5Redis\u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u53ca\u6642\u767c\u73fe\u4e26\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff1a<\/strong>\u6839\u64da\u696d\u52d9\u9700\u6c42\u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593\uff0c\u907f\u514d\u6578\u64da\u9577\u6642\u9593\u4f54\u7528\u5167\u5b58\u3002<\/li>\n<li><strong>\u76e3\u63a7\u6027\u80fd\uff1a<\/strong>\u4f7f\u7528Redis\u7684\u76e3\u63a7\u5de5\u5177\uff0c\u89c0\u5bdf\u6e05\u5eab\u5b58\u5f8c\u7684\u6027\u80fd\u8b8a\u5316\uff0c\u78ba\u4fdd\u7cfb\u7d71\u904b\u884c\u7a69\u5b9a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-OnXIOHLiBf\">\u7e3d\u7d50<\/h2>\n<p>Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u6e05\u5eab\u5b58\u662f\u7dad\u8b77\u5176\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3001\u4e3b\u52d5\u522a\u9664\u3001\u4f7f\u7528SCAN\u547d\u4ee4\u4ee5\u53ca\u5408\u7406\u914d\u7f6e\u5167\u5efa\u6e05\u7406\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u6e05\u7406\u6578\u64da\u3002\u5b9a\u671f\u6aa2\u67e5\u548c\u76e3\u63a7\u6027\u80fd\u4e5f\u662f\u78ba\u4fdd\u7cfb\u7d71\u5065\u5eb7\u904b\u884c\u7684\u95dc\u9375\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u5982 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6574\u9ad4\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u6709\u6548\u5730\u4f7f\u7528Redis\u6e05\u5eab\u5b58\uff0c\u512a\u5316\u6578\u64da\u7ba1\u7406\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\uff0c\u5be6\u73fe\u9ad8\u6548\u7684\u5eab\u5b58\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\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-196786","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196786","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=196786"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196786\/revisions"}],"predecessor-version":[{"id":196787,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196786\/revisions\/196787"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196786"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196786"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}