{"id":164035,"date":"2024-11-05T04:29:26","date_gmt":"2024-11-04T20:29:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/164035\/"},"modified":"2024-11-05T04:29:27","modified_gmt":"2024-11-04T20:29:27","slug":"%e8%a7%a3%e6%9e%90redis%e9%9a%8a%e5%88%97size%e5%a4%a7%e5%b0%8f%ef%bc%88redis-%e9%9a%8a%e5%88%97size%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/164035\/","title":{"rendered":"\u89e3\u6790Redis\u968a\u5217Size\u5927\u5c0f\uff08redis \u968a\u5217size\uff09"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%9e%90redis%e9%9a%8a%e5%88%97size%e5%a4%a7%e5%b0%8f%ef%bc%88redis-%e9%9a%8a%e5%88%97size%ef%bc%89-EaXeQIJrPz\">\u89e3\u6790Redis\u968a\u5217Size\u5927\u5c0f\uff08redis \u968a\u5217size\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u5834\u666f\u3002\u7279\u5225\u662f\u5728\u8655\u7406\u968a\u5217\u6642\uff0c\u4e86\u89e3Redis\u968a\u5217\u7684\u5927\u5c0f\uff08size\uff09\u5c0d\u65bc\u6027\u80fd\u512a\u5316\u548c\u8cc7\u6e90\u7ba1\u7406\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u968a\u5217\u7684\u5927\u5c0f\u53ca\u5176\u5f71\u97ff\u56e0\u7d20\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%9a%8a%e5%88%97%ef%bc%9f-EaXeQIJrPz\">\u4ec0\u9ebc\u662fRedis\u968a\u5217\uff1f<\/h2>\n<p>Redis\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5176\u4e2d\u5217\u8868\uff08List\uff09\u662f\u4e00\u7a2e\u975e\u5e38\u9069\u5408\u7528\u4f5c\u968a\u5217\u7684\u6578\u64da\u7d50\u69cb\u3002Redis\u5217\u8868\u662f\u4e00\u500b\u6709\u5e8f\u7684\u5b57\u7b26\u4e32\u96c6\u5408\uff0c\u652f\u6301\u5f9e\u5169\u7aef\u9032\u884c\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u3002\u9019\u4f7f\u5f97\u5b83\u975e\u5e38\u9069\u5408\u7528\u65bc\u5be6\u73fe\u5148\u9032\u5148\u51fa\uff08FIFO\uff09\u968a\u5217\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e7%8d%b2%e5%8f%96redis%e9%9a%8a%e5%88%97%e7%9a%84%e5%a4%a7%e5%b0%8f%ef%bc%9f-EaXeQIJrPz\">\u5982\u4f55\u7372\u53d6Redis\u968a\u5217\u7684\u5927\u5c0f\uff1f<\/h2>\n<p>\u8981\u7372\u53d6Redis\u4e2d\u67d0\u500b\u5217\u8868\u7684\u5927\u5c0f\uff0c\u53ef\u4ee5\u4f7f\u7528Redis\u7684 <code>LLEN<\/code> \u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u8fd4\u56de\u6307\u5b9a\u5217\u8868\u7684\u5143\u7d20\u6578\u91cf\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 <code>LLEN<\/code> \u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>LLEN key<\/code><\/pre>\n<p>\u5176\u4e2d\uff0c<code>key<\/code> \u662f\u4f60\u8981\u67e5\u8a62\u7684\u5217\u8868\u7684\u540d\u7a31\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u6709\u4e00\u500b\u540d\u70ba <code>myQueue<\/code> \u7684\u5217\u8868\uff0c\u4f60\u53ef\u4ee5\u9019\u6a23\u67e5\u8a62\u5b83\u7684\u5927\u5c0f\uff1a<\/p>\n<pre><code>LLEN myQueue<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de <code>myQueue<\/code> \u5217\u8868\u4e2d\u7576\u524d\u7684\u5143\u7d20\u6578\u91cf\u3002<\/p>\n<h2 id=\"%e5%bd%b1%e9%9f%bfredis%e9%9a%8a%e5%88%97%e5%a4%a7%e5%b0%8f%e7%9a%84%e5%9b%a0%e7%b4%a0-EaXeQIJrPz\">\u5f71\u97ffRedis\u968a\u5217\u5927\u5c0f\u7684\u56e0\u7d20<\/h2>\n<p>Redis\u968a\u5217\u7684\u5927\u5c0f\u53ef\u80fd\u53d7\u5230\u591a\u7a2e\u56e0\u7d20\u7684\u5f71\u97ff\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u751f\u7522\u8005\u548c\u6d88\u8cbb\u8005\u7684\u901f\u5ea6\uff1a<\/strong>\u5982\u679c\u751f\u7522\u8005\u7684\u901f\u5ea6\u5feb\u65bc\u6d88\u8cbb\u8005\uff0c\u968a\u5217\u7684\u5927\u5c0f\u5c07\u6703\u589e\u52a0\uff0c\u53cd\u4e4b\u5247\u6703\u6e1b\u5c11\u3002<\/li>\n<li><strong>\u904e\u671f\u7b56\u7565\uff1a<\/strong>\u5982\u679c\u4f7f\u7528\u4e86\u904e\u671f\u7b56\u7565\uff0c\u67d0\u4e9b\u5143\u7d20\u53ef\u80fd\u6703\u5728\u5230\u9054\u968a\u5217\u4e4b\u524d\u88ab\u522a\u9664\uff0c\u9019\u4e5f\u6703\u5f71\u97ff\u968a\u5217\u7684\u5927\u5c0f\u3002<\/li>\n<li><strong>\u5167\u5b58\u9650\u5236\uff1a<\/strong>Redis\u7684\u5167\u5b58\u914d\u7f6e\u6703\u5f71\u97ff\u5176\u80fd\u5920\u5b58\u5132\u7684\u6578\u64da\u91cf\uff0c\u7576\u9054\u5230\u5167\u5b58\u9650\u5236\u6642\uff0cRedis\u53ef\u80fd\u6703\u6839\u64da\u914d\u7f6e\u7684\u7b56\u7565\u522a\u9664\u820a\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%9b%a3%e6%8e%a7redis%e9%9a%8a%e5%88%97%e5%a4%a7%e5%b0%8f-EaXeQIJrPz\">\u76e3\u63a7Redis\u968a\u5217\u5927\u5c0f<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u7ba1\u7406\u548c\u512a\u5316Redis\u968a\u5217\uff0c\u76e3\u63a7\u5176\u5927\u5c0f\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528Redis\u7684 <code>MONITOR<\/code> \u547d\u4ee4\u4f86\u5be6\u6642\u76e3\u63a7\u6240\u6709\u7684\u8acb\u6c42\uff0c\u6216\u8005\u4f7f\u7528 <code>INFO<\/code> \u547d\u4ee4\u4f86\u7372\u53d6\u6709\u95dcRedis\u5be6\u4f8b\u7684\u7d71\u8a08\u4fe1\u606f\uff0c\u5305\u62ec\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\u548c\u9375\u7684\u6578\u91cf\u3002<\/p>\n<pre><code>INFO<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u5c07\u8fd4\u56de\u4e00\u7cfb\u5217\u7684\u7d71\u8a08\u6578\u64da\uff0c\u5176\u4e2d\u5305\u62ec <code>used_memory<\/code> \u548c <code>total_keys<\/code> \u7b49\u4fe1\u606f\uff0c\u5e6b\u52a9\u4f60\u4e86\u89e3Redis\u7684\u6574\u9ad4\u72c0\u6cc1\u3002<\/p>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e7%a4%ba%e4%be%8b-EaXeQIJrPz\">\u5be6\u969b\u61c9\u7528\u793a\u4f8b<\/h2>\n<p>\u5047\u8a2d\u4f60\u6b63\u5728\u958b\u767c\u4e00\u500b\u5373\u6642\u6d88\u606f\u61c9\u7528\uff0c\u4f7f\u7528Redis\u4f5c\u70ba\u6d88\u606f\u968a\u5217\u3002\u4f60\u53ef\u4ee5\u5b9a\u671f\u6aa2\u67e5\u968a\u5217\u7684\u5927\u5c0f\uff0c\u4ee5\u78ba\u4fdd\u6d88\u606f\u4e0d\u6703\u5806\u7a4d\u904e\u591a\uff0c\u5f9e\u800c\u5f71\u97ff\u7cfb\u7d71\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Python\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Redis\u7684Python\u5ba2\u6236\u7aef\u4f86\u6aa2\u67e5\u968a\u5217\u5927\u5c0f\uff1a<\/p>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u7372\u53d6\u968a\u5217\u5927\u5c0f\nqueue_size = r.llen('myQueue')\nprint(f'\u7576\u524d\u968a\u5217\u5927\u5c0f: {queue_size}')\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-EaXeQIJrPz\">\u7d50\u8ad6<\/h2>\n<p>\u4e86\u89e3\u548c\u7ba1\u7406Redis\u968a\u5217\u7684\u5927\u5c0f\u5c0d\u65bc\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528\u9069\u7576\u7684\u547d\u4ee4\u548c\u76e3\u63a7\u5de5\u5177\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u968a\u5217\u7684\u589e\u9577\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u97ff\u61c9\u901f\u5ea6\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u89e3\u6790Redis\u968a\u5217\u7684Size\u5927\u5c0f\uff0c\u638c\u63e1\u6578\u64da\u5b58\u5132\u8207\u7ba1\u7406\u7684\u6700\u4f73\u5be6\u8e10\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u6548\u7387\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-164035","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164035","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=164035"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164035\/revisions"}],"predecessor-version":[{"id":164036,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164035\/revisions\/164036"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=164035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=164035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=164035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}