{"id":47413,"date":"2023-12-11T15:11:45","date_gmt":"2023-12-11T07:11:45","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=47413"},"modified":"2023-12-11T15:11:45","modified_gmt":"2023-12-11T07:11:45","slug":"%e6%80%8e%e4%b9%88%e5%9c%a8%e5%8d%95%e8%8a%82%e7%82%b9%e4%b8%8a%e5%ae%9e%e7%8e%b0%e5%88%86%e5%b8%83%e5%bc%8f%e9%94%81%ef%bc%9f-4","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/%e6%80%8e%e4%b9%88%e5%9c%a8%e5%8d%95%e8%8a%82%e7%82%b9%e4%b8%8a%e5%ae%9e%e7%8e%b0%e5%88%86%e5%b8%83%e5%bc%8f%e9%94%81%ef%bc%9f-4\/","title":{"rendered":"\u600e\u4e48\u5728\u5355\u8282\u70b9\u4e0a\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\uff1f"},"content":{"rendered":"

“`”<\/p>\n

<blockquote>SET resource<em>name my<\/em>random_value NX PX 30000<\/p><\/blockquote><\/p>\n

\u4e3b\u8981\u4f9d\u9760\u4e0a\u8ff0\u547d\u4ee4\uff0c\u8be5\u547d\u4ee4\u4ec5\u5f53 Key \u4e0d\u5b58\u5728\u65f6\uff08NX\u4fdd\u8bc1\uff09set \u503c\uff0c\u5e76\u4e14\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4 3000ms \uff08PX\u4fdd\u8bc1\uff09\uff0c\u503c my<em>random<\/em>value \u5fc5\u987b\u662f\u6240\u6709 client \u548c\u6240\u6709\u9501\u8bf7\u6c42\u53d1\u751f\u671f\u95f4\u552f\u4e00\u7684\uff0c\u91ca\u653e\u9501\u7684\u903b\u8f91\u662f\uff1a<\/p>\n

<code>luaif redis.call(""get"",KEYS[1]) == ARGV[1] then return redis.call(""del"",KEYS[1])else return 0end<\/code><\/p>\n

\u4e0a\u8ff0\u5b9e\u73b0\u53ef\u4ee5\u907f\u514d\u91ca\u653e\u53e6\u4e00\u4e2aclient\u521b\u5efa\u7684\u9501\uff0c\u5982\u679c\u53ea\u6709 del \u547d\u4ee4\u7684\u8bdd\uff0c\u90a3\u4e48\u5982\u679c client1 \u62ff\u5230 lock1 \u4e4b\u540e\u56e0\u4e3a\u67d0\u4e9b\u64cd\u4f5c\u963b\u585e\u4e86\u5f88\u957f\u65f6\u95f4\uff0c\u6b64\u65f6 Redis \u7aef lock1 \u5df2\u7ecf\u8fc7\u671f\u4e86\u5e76\u4e14\u5df2\u7ecf\u88ab\u91cd\u65b0\u5206\u914d\u7ed9\u4e86 client2\uff0c\u90a3\u4e48 client1 \u6b64\u65f6\u518d\u53bb\u91ca\u653e\u8fd9\u628a\u9501\u5c31\u4f1a\u9020\u6210 client2 \u539f\u672c\u83b7\u53d6\u5230\u7684\u9501\u88ab client1 \u65e0\u6545\u91ca\u653e\u4e86\uff0c\u4f46\u73b0\u5728\u4e3a\u6bcf\u4e2a client \u5206\u914d\u4e00\u4e2a unique \u7684 string \u503c\u53ef\u4ee5\u907f\u514d\u8fd9\u4e2a\u95ee\u9898\u3002\u81f3\u4e8e\u5982\u4f55\u53bb\u751f\u6210\u8fd9\u4e2a unique string\uff0c\u65b9\u6cd5\u5f88\u591a\u968f\u610f\u9009\u62e9\u4e00\u79cd\u5c31\u884c\u4e86\u3002<\/p>\n

<pre><code> "“`
\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"

“`” <blockquote>SET resource<em&gt […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-47413","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=47413"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47413\/revisions"}],"predecessor-version":[{"id":47414,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/47413\/revisions\/47414"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=47413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=47413"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=47413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}