{"id":129575,"date":"2024-10-26T22:40:22","date_gmt":"2024-10-26T14:40:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129575\/"},"modified":"2024-10-26T22:40:23","modified_gmt":"2024-10-26T14:40:23","slug":"redis%e9%80%9a%e9%81%8edcl%e5%af%a6%e7%8f%be%e5%8f%af%e9%9d%a0%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e6%9e%b6%e6%a7%8b%ef%bc%88redis%e7%94%a8dcl%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129575\/","title":{"rendered":"Redis\u901a\u904eDCL\u5be6\u73fe\u53ef\u9760\u7684\u5206\u5e03\u5f0f\u67b6\u69cb\uff08redis\u7528dcl\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%80%9a%e9%81%8edcl%e5%af%a6%e7%8f%be%e5%8f%af%e9%9d%a0%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e6%9e%b6%e6%a7%8b%ef%bc%88redis%e7%94%a8dcl%ef%bc%89-fPNkzmAZpk\">Redis\u901a\u904eDCL\u5be6\u73fe\u53ef\u9760\u7684\u5206\u5e03\u5f0f\u67b6\u69cb\uff08redis\u7528dcl\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u5206\u5e03\u5f0f\u7cfb\u7d71\u7684\u53ef\u9760\u6027\u548c\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u901a\u904eDCL\uff08Distributed Consistency Layer\uff09\u4f86\u5be6\u73feRedis\u7684\u53ef\u9760\u5206\u5e03\u5f0f\u67b6\u69cb\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%afdcl%ef%bc%9f-fPNkzmAZpk\">\u4ec0\u9ebc\u662fDCL\uff1f<\/h2>\n<p>DCL\uff0c\u5373\u5206\u5e03\u5f0f\u4e00\u81f4\u6027\u5c64\uff0c\u662f\u4e00\u7a2e\u7528\u65bc\u78ba\u4fdd\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\u6578\u64da\u4e00\u81f4\u6027\u7684\u6280\u8853\u3002\u5b83\u901a\u904e\u5728\u591a\u500b\u7bc0\u9ede\u4e4b\u9593\u5354\u8abf\u6578\u64da\u7684\u8b80\u53d6\u548c\u5beb\u5165\u64cd\u4f5c\uff0c\u4f86\u4fdd\u8b49\u7cfb\u7d71\u7684\u6574\u9ad4\u4e00\u81f4\u6027\u3002DCL\u7684\u4e3b\u8981\u76ee\u7684\u662f\u89e3\u6c7a\u5728\u5206\u5e03\u5f0f\u74b0\u5883\u4e2d\u5e38\u898b\u7684\u6578\u64da\u4e0d\u4e00\u81f4\u554f\u984c\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%89%b9%e6%80%a7-fPNkzmAZpk\">Redis\u7684\u57fa\u672c\u7279\u6027<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u5167\u5b58\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u5176\u4e3b\u8981\u7279\u6027\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6027\u80fd\uff1aRedis\u80fd\u5920\u4ee5\u6beb\u79d2\u7d1a\u7684\u5ef6\u9072\u8655\u7406\u6578\u767e\u842c\u6b21\u8acb\u6c42\u3002<\/li>\n<li>\u6301\u4e45\u5316\uff1a\u652f\u6301RDB\u548cAOF\u5169\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u80fd\u5920\u5728\u7cfb\u7d71\u91cd\u555f\u5f8c\u6062\u5fa9\u6578\u64da\u3002<\/li>\n<li>\u9ad8\u53ef\u7528\u6027\uff1a\u901a\u904e\u4e3b\u5f9e\u8907\u88fd\u548c\u54e8\u5175\u6a21\u5f0f\uff0cRedis\u80fd\u5920\u5be6\u73fe\u9ad8\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"dcl%e5%9c%a8redis%e4%b8%ad%e7%9a%84%e6%87%89%e7%94%a8-fPNkzmAZpk\">DCL\u5728Redis\u4e2d\u7684\u61c9\u7528<\/h2>\n<p>\u5728Redis\u4e2d\u5be6\u73feDCL\u7684\u4e3b\u8981\u65b9\u6cd5\u662f\u901a\u904e\u4f7f\u7528\u5206\u5e03\u5f0f\u9396\u548c\u4e8b\u52d9\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u5be6\u73fe\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96-fPNkzmAZpk\">1. \u4f7f\u7528\u5206\u5e03\u5f0f\u9396<\/h3>\n<p>\u5206\u5e03\u5f0f\u9396\u53ef\u4ee5\u9632\u6b62\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u5c0d\u540c\u4e00\u6578\u64da\u9032\u884c\u5beb\u5165\u64cd\u4f5c\u3002Redis\u63d0\u4f9b\u4e86\u7c21\u55ae\u7684\u9396\u5be6\u73fe\u65b9\u5f0f\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Redis\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nfunction acquireLock($key, $value, $expire) {\n    $result = redis()-&gt;set($key, $value, ['NX', 'EX' =&gt; $expire]);\n    return $result;\n}\n\nfunction releaseLock($key, $value) {\n    $script = \"if redis.call('get', KEYS[1]) == ARGV[1] then return redis.call('del', KEYS[1]) else return 0 end\";\n    return redis()-&gt;eval($script, [$key, $value], 1);\n}\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e4%ba%8b%e5%8b%99-fPNkzmAZpk\">2. \u4f7f\u7528\u4e8b\u52d9<\/h3>\n<p>\u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528MULTI\u548cEXEC\u547d\u4ee4\u4f86\u5be6\u73fe\u4e8b\u52d9\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u4e00\u7d44\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u6210\u529f\uff0c\u8981\u9ebc\u5168\u90e8\u5931\u6557\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u4e8b\u52d9\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nredis()-&gt;multi()\n    -&gt;set('key1', 'value1')\n    -&gt;set('key2', 'value2')\n    -&gt;exec();\n<\/code><\/pre>\n<h2 id=\"%e7%a2%ba%e4%bf%9d%e6%95%b8%e6%93%9a%e4%b8%80%e8%87%b4%e6%80%a7%e7%9a%84%e6%8c%91%e6%88%b0-fPNkzmAZpk\">\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u7684\u6311\u6230<\/h2>\n<p>\u5118\u7ba1DCL\u80fd\u5920\u63d0\u9ad8\u6578\u64da\u7684\u4e00\u81f4\u6027\uff0c\u4f46\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u4ecd\u7136\u9762\u81e8\u4e00\u4e9b\u6311\u6230\u3002\u4f8b\u5982\uff0c\u7db2\u7d61\u5ef6\u9072\u3001\u7bc0\u9ede\u6545\u969c\u7b49\u90fd\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002\u56e0\u6b64\uff0c\u958b\u767c\u8005\u9700\u8981\u8003\u616e\u5982\u4f55\u8655\u7406\u9019\u4e9b\u7570\u5e38\u60c5\u6cc1\u3002<\/p>\n<h3 id=\"1-%e7%b6%b2%e7%b5%a1%e5%bb%b6%e9%81%b2-fPNkzmAZpk\">1. \u7db2\u7d61\u5ef6\u9072<\/h3>\n<p>\u5728\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u7db2\u7d61\u5ef6\u9072\u53ef\u80fd\u5c0e\u81f4\u64cd\u4f5c\u7684\u9806\u5e8f\u4e0d\u4e00\u81f4\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u53ef\u4ee5\u4f7f\u7528\u6642\u9593\u6233\u6216\u7248\u672c\u865f\u4f86\u6a19\u8a18\u6578\u64da\u7684\u66f4\u65b0\uff0c\u5f9e\u800c\u78ba\u4fdd\u64cd\u4f5c\u7684\u6b63\u78ba\u9806\u5e8f\u3002<\/p>\n<h3 id=\"2-%e7%af%80%e9%bb%9e%e6%95%85%e9%9a%9c-fPNkzmAZpk\">2. \u7bc0\u9ede\u6545\u969c<\/h3>\n<p>\u7bc0\u9ede\u6545\u969c\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u6216\u4e0d\u4e00\u81f4\u3002\u70ba\u4e86\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u9760\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528\u6578\u64da\u8907\u88fd\u548c\u5099\u4efd\u7b56\u7565\uff0c\u78ba\u4fdd\u6578\u64da\u5728\u591a\u500b\u7bc0\u9ede\u4e4b\u9593\u7684\u5197\u9918\u5b58\u5132\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-fPNkzmAZpk\">\u7d50\u8ad6<\/h2>\n<p>\u901a\u904eDCL\u6280\u8853\uff0cRedis\u80fd\u5920\u5728\u5206\u5e03\u5f0f\u74b0\u5883\u4e2d\u5be6\u73fe\u53ef\u9760\u7684\u6578\u64da\u4e00\u81f4\u6027\u3002\u96d6\u7136\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u4ecd\u7136\u9762\u81e8\u4e00\u4e9b\u6311\u6230\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\uff0cRedis\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u9999\u6e2f\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u74b0\u5883\u4e2d\u90e8\u7f72Redis\u6709\u8208\u8da3\uff0c\u6216\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u901a\u904eDCL\u5be6\u73feRedis\u7684\u53ef\u9760\u5206\u5e03\u5f0f\u67b6\u69cb\uff0c\u63d0\u5347\u6578\u64da\u4e00\u81f4\u6027\u8207\u7cfb\u7d71\u7a69\u5b9a\u6027\uff0c\u512a\u5316\u6027\u80fd\u8207\u64f4\u5c55\u6027\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-129575","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129575","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=129575"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129575\/revisions"}],"predecessor-version":[{"id":129576,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129575\/revisions\/129576"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}