{"id":98040,"date":"2024-10-20T23:16:19","date_gmt":"2024-10-20T15:16:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/98040\/"},"modified":"2024-10-20T23:16:19","modified_gmt":"2024-10-20T15:16:19","slug":"redis-%e6%9f%a5%e7%9c%8b-db-%e5%80%8b%e6%95%b8%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/98040\/","title":{"rendered":"Redis \u67e5\u770b DB \u500b\u6578\u7684\u5be6\u73fe\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"redis-%e6%9f%a5%e7%9c%8b-db-%e5%80%8b%e6%95%b8%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e6%b3%95-SHMRBMTeQA\">Redis \u67e5\u770b DB \u500b\u6578\u7684\u5be6\u73fe\u65b9\u6cd5<\/h1>\n<p>Redis \u662f\u4e00\u500b\u9ad8\u6548\u80fd\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\u5728\u4f7f\u7528 Redis \u7684\u904e\u7a0b\u4e2d\uff0c\u4e86\u89e3\u5982\u4f55\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u7684\u500b\u6578\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u7279\u5225\u662f\u5728\u591a\u6578\u64da\u5eab\u74b0\u5883\u4e2d\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5e7e\u7a2e\u67e5\u770b Redis \u6578\u64da\u5eab\u500b\u6578\u7684\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"redis-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-SHMRBMTeQA\">Redis \u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis \u9810\u8a2d\u63d0\u4f9b 16 \u500b\u6578\u64da\u5eab\uff0c\u9019\u4e9b\u6578\u64da\u5eab\u7684\u7d22\u5f15\u5f9e 0 \u5230 15\u3002\u7528\u6236\u53ef\u4ee5\u901a\u904e\u9078\u64c7\u4e0d\u540c\u7684\u6578\u64da\u5eab\u4f86\u7ba1\u7406\u4e0d\u540c\u7684\u6578\u64da\u96c6\u3002\u6bcf\u500b\u6578\u64da\u5eab\u90fd\u662f\u7368\u7acb\u7684\uff0c\u9019\u610f\u5473\u8457\u5728\u4e00\u500b\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u7684\u6578\u64da\u4e0d\u6703\u5f71\u97ff\u5230\u5176\u4ed6\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8b-redis-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%80%8b%e6%95%b8%e7%9a%84%e6%96%b9%e6%b3%95-SHMRBMTeQA\">\u67e5\u770b Redis \u6578\u64da\u5eab\u500b\u6578\u7684\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-redis-cli-SHMRBMTeQA\">1. \u4f7f\u7528 Redis CLI<\/h3>\n<p>\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 Redis \u7684\u547d\u4ee4\u884c\u754c\u9762\uff08CLI\uff09\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u6b65\u9a5f\u4f86\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u7684\u500b\u6578\uff1a<\/p>\n<pre><code>redis-cli<\/code><\/pre>\n<p>\u9023\u63a5\u5230 Redis \u670d\u52d9\u5668\u5f8c\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u9078\u64c7\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>SELECT <\/code><\/pre>\n<p>\u7136\u5f8c\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u4e2d\u7684\u9375\u7684\u6578\u91cf\uff1a<\/p>\n<pre><code>DBSIZE<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u7576\u524d\u9078\u64c7\u7684\u6578\u64da\u5eab\u4e2d\u9375\u7684\u6578\u91cf\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>127.0.0.1:6379&gt; SELECT 0\nOK\n127.0.0.1:6379[0]&gt; DBSIZE\n(integer) 5<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-redis-%e5%91%bd%e4%bb%a4-SHMRBMTeQA\">2. \u4f7f\u7528 Redis \u547d\u4ee4<\/h3>\n<p>\u9664\u4e86\u4f7f\u7528 CLI\uff0c\u9084\u53ef\u4ee5\u901a\u904e Redis \u63d0\u4f9b\u7684\u547d\u4ee4\u4f86\u67e5\u770b\u6240\u6709\u6578\u64da\u5eab\u7684\u9375\u7684\u6578\u91cf\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>INFO keyspace<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u6240\u6709\u6578\u64da\u5eab\u7684\u9375\u7a7a\u9593\u4fe1\u606f\uff0c\u5305\u62ec\u6bcf\u500b\u6578\u64da\u5eab\u7684\u9375\u7684\u6578\u91cf\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>127.0.0.1:6379&gt; INFO keyspace\n# Keyspace\ndb0:keys=5,expires=0,avg_ttl=0\ndb1:keys=0,expires=0,avg_ttl=0\ndb2:keys=0,expires=0,avg_ttl=0\ndb3:keys=0,expires=0,avg_ttl=0\ndb4:keys=0,expires=0,avg_ttl=0\ndb5:keys=0,expires=0,avg_ttl=0\ndb6:keys=0,expires=0,avg_ttl=0\ndb7:keys=0,expires=0,avg_ttl=0\ndb8:keys=0,expires=0,avg_ttl=0\ndb9:keys=0,expires=0,avg_ttl=0\ndb10:keys=0,expires=0,avg_ttl=0\ndb11:keys=0,expires=0,avg_ttl=0\ndb12:keys=0,expires=0,avg_ttl=0\ndb13:keys=0,expires=0,avg_ttl=0\ndb14:keys=0,expires=0,avg_ttl=0\ndb15:keys=0,expires=0,avg_ttl=0<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u6e05\u695a\u5730\u770b\u5230\u6bcf\u500b\u6578\u64da\u5eab\u4e2d\u9375\u7684\u6578\u91cf\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e5%ae%a2%e6%88%b6%e7%ab%af%e5%ba%ab-SHMRBMTeQA\">3. \u4f7f\u7528\u5ba2\u6236\u7aef\u5eab<\/h3>\n<p>\u5982\u679c\u60a8\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528 Redis \u5ba2\u6236\u7aef\u5eab\uff08\u5982 Python \u7684 redis-py\uff09\uff0c\u4e5f\u53ef\u4ee5\u901a\u904e\u7de8\u7a0b\u65b9\u5f0f\u67e5\u770b\u6578\u64da\u5eab\u7684\u9375\u7684\u6578\u91cf\u3002\u4ee5\u4e0b\u662f Python \u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u7372\u53d6\u7576\u524d\u6578\u64da\u5eab\u7684\u9375\u7684\u6578\u91cf\ndb_size = r.dbsize()\nprint(f\"\u7576\u524d\u6578\u64da\u5eab\u7684\u9375\u7684\u6578\u91cf: {db_size}\")<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-SHMRBMTeQA\">\u7e3d\u7d50<\/h2>\n<p>\u4e86\u89e3\u5982\u4f55\u67e5\u770b Redis \u6578\u64da\u5eab\u7684\u500b\u6578\u548c\u9375\u7684\u6578\u91cf\u5c0d\u65bc\u6709\u6548\u7ba1\u7406\u6578\u64da\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u901a\u904e\u547d\u4ee4\u884c\u754c\u9762\u3001Redis \u547d\u4ee4\u9084\u662f\u5ba2\u6236\u7aef\u5eab\uff0c\u90fd\u53ef\u4ee5\u8f15\u9b06\u7372\u53d6\u9019\u4e9b\u4fe1\u606f\u3002\u9019\u4e9b\u65b9\u6cd5\u4e0d\u50c5\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u6578\u64da\u5eab\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u9084\u80fd\u5728\u6027\u80fd\u512a\u5316\u548c\u8cc7\u6e90\u7ba1\u7406\u4e0a\u63d0\u4f9b\u652f\u6301\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\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728 Redis \u4e2d\u67e5\u770b DB \u500b\u6578\uff0c\u638c\u63e1\u547d\u4ee4\u548c\u6280\u5de7\uff0c\u8f15\u9b06\u7ba1\u7406\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-98040","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98040","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=98040"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98040\/revisions"}],"predecessor-version":[{"id":98041,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98040\/revisions\/98041"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=98040"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=98040"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=98040"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}