{"id":190962,"date":"2024-11-12T15:57:32","date_gmt":"2024-11-12T07:57:32","guid":{"rendered":"https:\/\/server.hk\/cnblog\/190962\/"},"modified":"2024-11-12T15:57:33","modified_gmt":"2024-11-12T07:57:33","slug":"%e9%99%90%e5%88%b6redis%e9%8d%b5%e5%80%8b%e6%95%b8%ef%bc%8c%e4%bf%9d%e9%9a%9c%e6%9c%8d%e5%8b%99%e5%81%a5%e5%ba%b7%e9%81%8b%e8%a1%8c%ef%bc%88redis%e9%8d%b5%e5%80%8b%e6%95%b8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/190962\/","title":{"rendered":"\u9650\u5236Redis\u9375\u500b\u6578\uff0c\u4fdd\u969c\u670d\u52d9\u5065\u5eb7\u904b\u884c\uff08redis\u9375\u500b\u6578\uff09"},"content":{"rendered":"<h1 id=\"%e9%99%90%e5%88%b6redis%e9%8d%b5%e5%80%8b%e6%95%b8%ef%bc%8c%e4%bf%9d%e9%9a%9c%e6%9c%8d%e5%8b%99%e5%81%a5%e5%ba%b7%e9%81%8b%e8%a1%8c-vUkKZQLXvA\">\u9650\u5236Redis\u9375\u500b\u6578\uff0c\u4fdd\u969c\u670d\u52d9\u5065\u5eb7\u904b\u884c<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7121\u8ad6\u662f\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u9084\u662f\u6578\u64da\u6301\u4e45\u5316\uff0cRedis\u90fd\u80fd\u63d0\u4f9b\u5353\u8d8a\u7684\u6027\u80fd\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u589e\u9577\uff0cRedis\u4e2d\u7684\u9375\u6578\u91cf\u4e5f\u53ef\u80fd\u8fc5\u901f\u589e\u52a0\uff0c\u9019\u53ef\u80fd\u6703\u5c0d\u670d\u52d9\u7684\u5065\u5eb7\u904b\u884c\u9020\u6210\u5f71\u97ff\u3002\u56e0\u6b64\uff0c\u9650\u5236Redis\u9375\u7684\u500b\u6578\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u7ba1\u7406\u7b56\u7565\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e9%99%90%e5%88%b6redis%e9%8d%b5%e7%9a%84%e5%80%8b%e6%95%b8%ef%bc%9f-vUkKZQLXvA\">\u70ba\u4ec0\u9ebc\u9700\u8981\u9650\u5236Redis\u9375\u7684\u500b\u6578\uff1f<\/h2>\n<p>\u9650\u5236Redis\u9375\u7684\u500b\u6578\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u5167\u5b58\u7ba1\u7406\uff1a<\/strong>Redis\u662f\u4e00\u500b\u57fa\u65bc\u5167\u5b58\u7684\u6578\u64da\u5eab\uff0c\u6240\u6709\u6578\u64da\u90fd\u5b58\u5132\u5728\u5167\u5b58\u4e2d\u3002\u7576\u9375\u7684\u6578\u91cf\u904e\u591a\u6642\uff0c\u5167\u5b58\u7684\u4f7f\u7528\u7387\u6703\u8fc5\u901f\u4e0a\u5347\uff0c\u53ef\u80fd\u5c0e\u81f4\u5167\u5b58\u4e0d\u8db3\uff0c\u9032\u800c\u5f71\u97ff\u670d\u52d9\u7684\u7a69\u5b9a\u6027\u3002<\/li>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>\u904e\u591a\u7684\u9375\u6703\u589e\u52a0\u67e5\u8a62\u548c\u64cd\u4f5c\u7684\u5ef6\u9072\uff0c\u5f71\u97ff\u6574\u9ad4\u6027\u80fd\u3002\u9650\u5236\u9375\u7684\u6578\u91cf\u53ef\u4ee5\u5e6b\u52a9\u4fdd\u6301\u9ad8\u6548\u7684\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u904e\u591a\u7684\u9375\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\uff0c\u7279\u5225\u662f\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u3002\u901a\u904e\u9650\u5236\u9375\u7684\u6578\u91cf\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%99%90%e5%88%b6redis%e9%8d%b5%e7%9a%84%e5%80%8b%e6%95%b8%ef%bc%9f-vUkKZQLXvA\">\u5982\u4f55\u9650\u5236Redis\u9375\u7684\u500b\u6578\uff1f<\/h2>\n<p>\u9650\u5236Redis\u9375\u7684\u500b\u6578\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u5f0f\u5be6\u73fe\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\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-vUkKZQLXvA\">1. \u4f7f\u7528\u904e\u671f\u6642\u9593<\/h3>\n<p>Redis\u63d0\u4f9b\u4e86\u8a2d\u7f6e\u9375\u904e\u671f\u6642\u9593\u7684\u529f\u80fd\u3002\u901a\u904e\u70ba\u6bcf\u500b\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u53ef\u4ee5\u81ea\u52d5\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u9375\uff0c\u5f9e\u800c\u63a7\u5236\u9375\u7684\u7e3d\u6578\u91cf\u3002\u4ee5\u4e0b\u662f\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SET mykey \"value\"\nEXPIRE mykey 3600  # \u8a2d\u7f6emykey\u57283600\u79d2\u5f8c\u904e\u671f\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e6%9c%80%e5%a4%a7%e9%8d%b5%e6%95%b8%e9%87%8f%e9%99%90%e5%88%b6-vUkKZQLXvA\">2. \u4f7f\u7528\u6700\u5927\u9375\u6578\u91cf\u9650\u5236<\/h3>\n<p>\u53ef\u4ee5\u5728\u61c9\u7528\u5c64\u9762\u4e0a\u5be6\u73fe\u6700\u5927\u9375\u6578\u91cf\u9650\u5236\u3002\u7576\u65b0\u7684\u9375\u88ab\u6dfb\u52a0\u6642\uff0c\u6aa2\u67e5\u7576\u524d\u9375\u7684\u6578\u91cf\uff0c\u5982\u679c\u8d85\u904e\u9650\u5236\uff0c\u5247\u522a\u9664\u6700\u820a\u7684\u9375\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>def add_key(redis_client, key, value, max_keys):\n    if redis_client.dbsize() &gt;= max_keys:\n        oldest_key = redis_client.keys()[0]  # \u7372\u53d6\u6700\u820a\u7684\u9375\n        redis_client.delete(oldest_key)  # \u522a\u9664\u6700\u820a\u7684\u9375\n    redis_client.set(key, value)\n<\/code><\/pre>\n<h3 id=\"3-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86-vUkKZQLXvA\">3. \u5b9a\u671f\u6e05\u7406<\/h3>\n<p>\u5b9a\u671f\u904b\u884c\u6e05\u7406\u4efb\u52d9\uff0c\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u9375\u3002\u9019\u53ef\u4ee5\u901a\u904e\u8a08\u5283\u4efb\u52d9\u6216\u4f7f\u7528Redis\u7684\u5b9a\u6642\u4efb\u52d9\u529f\u80fd\u4f86\u5be6\u73fe\u3002<\/p>\n<h2 id=\"%e7%9b%a3%e6%8e%a7redis%e9%8d%b5%e7%9a%84%e4%bd%bf%e7%94%a8%e6%83%85%e6%b3%81-vUkKZQLXvA\">\u76e3\u63a7Redis\u9375\u7684\u4f7f\u7528\u60c5\u6cc1<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u5730\u7ba1\u7406Redis\u9375\u7684\u6578\u91cf\uff0c\u76e3\u63a7\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u53ef\u4ee5\u4f7f\u7528Redis\u7684\u5167\u5efa\u547d\u4ee4\u4f86\u67e5\u770b\u7576\u524d\u9375\u7684\u6578\u91cf\uff1a<\/p>\n<pre><code>DBSIZE  # \u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u4e2d\u7684\u9375\u6578\u91cf\n<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u76e3\u63a7\u5de5\u5177\uff0c\u5982Redis Monitor\u6216\u7b2c\u4e09\u65b9\u76e3\u63a7\u89e3\u6c7a\u65b9\u6848\uff0c\u4f86\u5be6\u6642\u8ddf\u8e64\u9375\u7684\u4f7f\u7528\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-vUkKZQLXvA\">\u7d50\u8ad6<\/h2>\n<p>\u9650\u5236Redis\u9375\u7684\u500b\u6578\u662f\u4fdd\u969c\u670d\u52d9\u5065\u5eb7\u904b\u884c\u7684\u91cd\u8981\u63aa\u65bd\u3002\u901a\u904e\u5408\u7406\u7684\u5167\u5b58\u7ba1\u7406\u3001\u6027\u80fd\u512a\u5316\u548c\u6578\u64da\u4e00\u81f4\u6027\u63a7\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8Redis\u7684\u904b\u884c\u6548\u7387\u3002\u7121\u8ad6\u662f\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3001\u5be6\u73fe\u6700\u5927\u9375\u6578\u91cf\u9650\u5236\uff0c\u9084\u662f\u5b9a\u671f\u6e05\u7406\uff0c\u9019\u4e9b\u65b9\u6cd5\u90fd\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406Redis\u7684\u4f7f\u7528\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\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u60a8\u7684\u6578\u64da\u5eab\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9650\u5236Redis\u9375\u500b\u6578\u4ee5\u4fdd\u969c\u670d\u52d9\u5065\u5eb7\u904b\u884c\uff0c\u9632\u6b62\u8cc7\u6e90\u8017\u76e1\uff0c\u63d0\u5347\u7cfb\u7d71\u7a69\u5b9a\u6027\u8207\u6027\u80fd\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-190962","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/190962","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=190962"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/190962\/revisions"}],"predecessor-version":[{"id":190963,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/190962\/revisions\/190963"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=190962"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=190962"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=190962"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}