{"id":161789,"date":"2024-11-04T09:21:25","date_gmt":"2024-11-04T01:21:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161789\/"},"modified":"2024-11-04T09:21:26","modified_gmt":"2024-11-04T01:21:26","slug":"%e6%a5%b5%e9%80%9f%e8%ae%80%e5%8f%96-redis-%e6%95%b8%e6%93%9a%e5%ae%89%e5%85%a8%e5%8a%a0%e9%8e%96%ef%bc%88redis-%e8%ae%80%e6%95%b8%e6%93%9a%e5%8a%a0%e9%8e%96%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161789\/","title":{"rendered":"\u6975\u901f\u8b80\u53d6 Redis \u6578\u64da\u5b89\u5168\u52a0\u9396\uff08redis \u8b80\u6578\u64da\u52a0\u9396\uff09"},"content":{"rendered":"<h1 id=\"%e6%a5%b5%e9%80%9f%e8%ae%80%e5%8f%96-redis-%e6%95%b8%e6%93%9a%e5%ae%89%e5%85%a8%e5%8a%a0%e9%8e%96%ef%bc%88redis-%e8%ae%80%e6%95%b8%e6%93%9a%e5%8a%a0%e9%8e%96%ef%bc%89-fquvkYwaHm\">\u6975\u901f\u8b80\u53d6 Redis \u6578\u64da\u5b89\u5168\u52a0\u9396\uff08redis \u8b80\u6578\u64da\u52a0\u9396\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u589e\u9577\uff0c\u6578\u64da\u5b89\u5168\u6027\u548c\u4e00\u81f4\u6027\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe\u6578\u64da\u5b89\u5168\u52a0\u9396\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u6027\u548c\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-fquvkYwaHm\">Redis \u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9375\u503c\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\u7531\u65bc\u5176\u9ad8\u6548\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\uff0cRedis \u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u5834\u666f\u4e2d\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e5%8a%a0%e9%8e%96%ef%bc%9f-fquvkYwaHm\">\u70ba\u4ec0\u9ebc\u9700\u8981\u52a0\u9396\uff1f<\/h2>\n<p>\u5728\u591a\u7dda\u7a0b\u6216\u591a\u9032\u7a0b\u74b0\u5883\u4e2d\uff0c\u7576\u591a\u500b\u5be6\u4f8b\u540c\u6642\u8a2a\u554f\u548c\u4fee\u6539\u540c\u4e00\u6578\u64da\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u52a0\u9396\u662f\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u52a0\u9396\u53ef\u4ee5\u78ba\u4fdd\u5728\u67d0\u4e00\u6642\u523b\u53ea\u6709\u4e00\u500b\u5be6\u4f8b\u80fd\u5920\u8a2a\u554f\u7279\u5b9a\u7684\u6578\u64da\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u6027\u3002<\/p>\n<h2 id=\"redis-%e4%b8%ad%e7%9a%84%e5%8a%a0%e9%8e%96%e6%a9%9f%e5%88%b6-fquvkYwaHm\">Redis \u4e2d\u7684\u52a0\u9396\u6a5f\u5236<\/h2>\n<p>\u5728 Redis \u4e2d\u5be6\u73fe\u52a0\u9396\u7684\u5e38\u898b\u65b9\u6cd5\u662f\u4f7f\u7528 SETNX \u547d\u4ee4\u3002SETNX\uff08Set if Not eXists\uff09\u547d\u4ee4\u53ef\u4ee5\u5728\u9375\u4e0d\u5b58\u5728\u6642\u8a2d\u7f6e\u9375\u7684\u503c\uff0c\u9019\u4f7f\u5f97\u5b83\u6210\u70ba\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e7%9a%84%e5%8a%a0%e9%8e%96%e7%a4%ba%e4%be%8b-fquvkYwaHm\">\u57fa\u672c\u7684\u52a0\u9396\u793a\u4f8b<\/h3>\n<pre><code>SETNX lock_key unique_lock_value\nEXPIRE lock_key 10\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u4f7f\u7528 SETNX \u547d\u4ee4\u5617\u8a66\u8a2d\u7f6e\u4e00\u500b\u9396\u3002\u5982\u679c\u9396\u6210\u529f\u8a2d\u7f6e\uff0c\u5247\u53ef\u4ee5\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002\u63a5\u8457\uff0c\u4f7f\u7528 EXPIRE \u547d\u4ee4\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<h3 id=\"%e8%a7%a3%e9%8e%96%e7%9a%84%e9%81%8e%e7%a8%8b-fquvkYwaHm\">\u89e3\u9396\u7684\u904e\u7a0b<\/h3>\n<p>\u5728\u5b8c\u6210\u6578\u64da\u64cd\u4f5c\u5f8c\uff0c\u5fc5\u9808\u91cb\u653e\u9396\u3002\u9019\u53ef\u4ee5\u901a\u904e\u522a\u9664\u9396\u9375\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>DEL lock_key\n<\/code><\/pre>\n<p>\u7136\u800c\uff0c\u70ba\u4e86\u907f\u514d\u8aa4\u522a\u9664\u5176\u4ed6\u5be6\u4f8b\u7684\u9396\uff0c\u5efa\u8b70\u5728\u89e3\u9396\u6642\u6aa2\u67e5\u9396\u7684\u503c\u662f\u5426\u8207\u7576\u524d\u5be6\u4f8b\u7684\u552f\u4e00\u6a19\u8b58\u7b26\u76f8\u540c\uff1a<\/p>\n<pre><code>if (GET lock_key == unique_lock_value) {\n    DEL lock_key\n}\n<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8-redlock-%e5%af%a6%e7%8f%be%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96-fquvkYwaHm\">\u4f7f\u7528 Redlock \u5be6\u73fe\u5206\u4f48\u5f0f\u9396<\/h2>\n<p>\u5c0d\u65bc\u5206\u4f48\u5f0f\u7cfb\u7d71\uff0c\u55ae\u4e00 Redis \u5be6\u4f8b\u7684\u9396\u53ef\u80fd\u4e0d\u5920\u5b89\u5168\u3002\u6b64\u6642\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528 Redlock \u7b97\u6cd5\u3002Redlock \u662f\u7531 Redis \u7684\u5275\u59cb\u4eba Antirez \u63d0\u51fa\u7684\u5206\u4f48\u5f0f\u9396\u5be6\u73fe\u65b9\u6848\uff0c\u901a\u904e\u591a\u500b Redis \u5be6\u4f8b\u4f86\u63d0\u9ad8\u9396\u7684\u53ef\u9760\u6027\u3002<\/p>\n<h3 id=\"redlock-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%ad%a5%e9%a9%9f-fquvkYwaHm\">Redlock \u7684\u57fa\u672c\u6b65\u9a5f<\/h3>\n<ul>\n<li>\u5728\u591a\u500b Redis \u5be6\u4f8b\u4e0a\u7372\u53d6\u9396\u3002<\/li>\n<li>\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u3002<\/li>\n<li>\u78ba\u4fdd\u5927\u591a\u6578\u5be6\u4f8b\u6210\u529f\u7372\u53d6\u9396\u3002<\/li>\n<li>\u5728\u5b8c\u6210\u64cd\u4f5c\u5f8c\u91cb\u653e\u9396\u3002<\/li>\n<\/ul>\n<p>\u9019\u6a23\uff0c\u5373\u4f7f\u67d0\u500b Redis \u5be6\u4f8b\u5931\u6548\uff0c\u5176\u4ed6\u5be6\u4f8b\u4ecd\u7136\u53ef\u4ee5\u4fdd\u8b49\u9396\u7684\u6709\u6548\u6027\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-fquvkYwaHm\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u4f7f\u7528 Redis \u9032\u884c\u6578\u64da\u64cd\u4f5c\u6642\uff0c\u52a0\u9396\u662f\u4e00\u500b\u4e0d\u53ef\u6216\u7f3a\u7684\u6b65\u9a5f\u3002\u901a\u904e\u4f7f\u7528 SETNX \u547d\u4ee4\u548c Redlock \u7b97\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fdd\u8b77\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b89\u5168\u6027\u3002\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u64f4\u5c55\uff0c\u9078\u64c7\u5408\u9069\u7684\u9396\u6a5f\u5236\u5c07\u6709\u52a9\u65bc\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u6975\u901f\u8b80\u53d6 Redis \u6578\u64da\u5b89\u5168\u52a0\u9396\u6280\u8853\uff0c\u78ba\u4fdd\u6578\u64da\u5b89\u5168\u6027\u8207\u9ad8\u6548\u6027\uff0c\u63d0\u5347\u61c9\u7528\u6027\u80fd\u8207\u7a69\u5b9a\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-161789","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161789","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=161789"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161789\/revisions"}],"predecessor-version":[{"id":161790,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161789\/revisions\/161790"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}