{"id":129431,"date":"2024-10-26T21:34:08","date_gmt":"2024-10-26T13:34:08","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129431\/"},"modified":"2024-10-26T21:34:09","modified_gmt":"2024-10-26T13:34:09","slug":"redis%e9%8e%96%e5%b7%b2%e7%b6%93%e5%a4%b1%e6%95%88%ef%bc%8c%e4%bd%a0%e8%a9%b2%e6%80%8e%e9%ba%bc%e8%be%a6%ef%bc%88redis%e9%8e%96%e9%81%8e%e6%9c%9f%e4%ba%86%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129431\/","title":{"rendered":"Redis\u9396\u5df2\u7d93\u5931\u6548\uff0c\u4f60\u8a72\u600e\u9ebc\u8fa6\uff08redis\u9396\u904e\u671f\u4e86\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%8e%96%e5%b7%b2%e7%b6%93%e5%a4%b1%e6%95%88%ef%bc%8c%e4%bd%a0%e8%a9%b2%e6%80%8e%e9%ba%bc%e8%be%a6%ef%bc%88redis%e9%8e%96%e9%81%8e%e6%9c%9f%e4%ba%86%ef%bc%89-xeyYMKzIAr\">Redis\u9396\u5df2\u7d93\u5931\u6548\uff0c\u4f60\u8a72\u600e\u9ebc\u8fa6\uff08redis\u9396\u904e\u671f\u4e86\uff09<\/h1>\n<p>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u9396\u7684\u4f7f\u7528\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u9632\u6b62\u7af6\u722d\u689d\u4ef6\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u7c21\u55ae\u6613\u7528\u7684\u9396\u6a5f\u5236\u3002\u7136\u800c\uff0c\u7576Redis\u9396\u904e\u671f\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u5176\u4ed6\u610f\u5916\u884c\u70ba\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u9396\u5931\u6548\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86-xeyYMKzIAr\">Redis\u9396\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>Redis\u9396\u901a\u5e38\u662f\u901a\u904e\u8a2d\u7f6e\u4e00\u500b\u9375\u4f86\u5be6\u73fe\u7684\uff0c\u9019\u500b\u9375\u7684\u503c\u662f\u9396\u7684\u64c1\u6709\u8005\uff0c\u4e26\u4e14\u6703\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u9396\u5be6\u73fe\u793a\u4f8b\uff1a<\/p>\n<pre><code>SET lock_key \"owner_id\" NX PX 30000<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c`lock_key`\u662f\u9396\u7684\u9375\uff0c`owner_id`\u662f\u9396\u7684\u64c1\u6709\u8005\uff0c`NX`\u8868\u793a\u53ea\u6709\u5728\u9375\u4e0d\u5b58\u5728\u6642\u624d\u6703\u8a2d\u7f6e\uff0c`PX 30000`\u8868\u793a\u9396\u7684\u904e\u671f\u6642\u9593\u70ba30\u79d2\u3002<\/p>\n<h2 id=\"%e9%8e%96%e9%81%8e%e6%9c%9f%e7%9a%84%e5%8e%9f%e5%9b%a0-xeyYMKzIAr\">\u9396\u904e\u671f\u7684\u539f\u56e0<\/h2>\n<p>Redis\u9396\u904e\u671f\u7684\u539f\u56e0\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u696d\u52d9\u908f\u8f2f\u57f7\u884c\u6642\u9593\u904e\u9577\uff1a<\/strong>\u5982\u679c\u6301\u6709\u9396\u7684\u696d\u52d9\u908f\u8f2f\u57f7\u884c\u6642\u9593\u8d85\u904e\u4e86\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u9396\u5c07\u6703\u81ea\u52d5\u91cb\u653e\uff0c\u5c0e\u81f4\u5176\u4ed6\u8acb\u6c42\u53ef\u4ee5\u7372\u5f97\u9396\u3002<\/li>\n<li><strong>\u7db2\u7d61\u5ef6\u9072\uff1a<\/strong>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u7db2\u7d61\u5ef6\u9072\u53ef\u80fd\u5c0e\u81f4\u9396\u7684\u72c0\u614b\u672a\u80fd\u53ca\u6642\u66f4\u65b0\uff0c\u5f9e\u800c\u9020\u6210\u9396\u7684\u5931\u6548\u3002<\/li>\n<li><strong>\u932f\u8aa4\u7684\u9396\u7ba1\u7406\uff1a<\/strong>\u5982\u679c\u9396\u7684\u7ba1\u7406\u4e0d\u7576\uff0c\u4f8b\u5982\u932f\u8aa4\u5730\u91cb\u653e\u9396\u6216\u91cd\u8907\u7372\u53d6\u9396\uff0c\u4e5f\u53ef\u80fd\u5c0e\u81f4\u9396\u7684\u5931\u6548\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%99%95%e7%90%86redis%e9%8e%96%e9%81%8e%e6%9c%9f%e7%9a%84%e6%83%85%e6%b3%81-xeyYMKzIAr\">\u5982\u4f55\u8655\u7406Redis\u9396\u904e\u671f\u7684\u60c5\u6cc1<\/h2>\n<p>\u7576Redis\u9396\u904e\u671f\u6642\uff0c\u61c9\u8a72\u63a1\u53d6\u4ee5\u4e0b\u63aa\u65bd\u4f86\u8655\u7406\uff1a<\/p>\n<h3 id=\"1-%e5%a2%9e%e5%8a%a0%e9%8e%96%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-xeyYMKzIAr\">1. \u589e\u52a0\u9396\u7684\u904e\u671f\u6642\u9593<\/h3>\n<p>\u5982\u679c\u696d\u52d9\u908f\u8f2f\u57f7\u884c\u6642\u9593\u8f03\u9577\uff0c\u53ef\u4ee5\u8003\u616e\u589e\u52a0\u9396\u7684\u904e\u671f\u6642\u9593\u3002\u9019\u53ef\u4ee5\u901a\u904e\u5728\u696d\u52d9\u908f\u8f2f\u4e2d\u5b9a\u671f\u5ef6\u9577\u9396\u7684\u904e\u671f\u6642\u9593\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>if (isLockAcquired) {\n    \/\/ \u5ef6\u9577\u9396\u7684\u904e\u671f\u6642\u9593\n    EXPIRE lock_key 30000;\n}<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8redlock%e7%ae%97%e6%b3%95-xeyYMKzIAr\">2. \u4f7f\u7528Redlock\u7b97\u6cd5<\/h3>\n<p>Redlock\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u9396\u7b97\u6cd5\uff0c\u80fd\u5920\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e4b\u9593\u63d0\u4f9b\u66f4\u9ad8\u7684\u53ef\u9760\u6027\u3002\u901a\u904e\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e0a\u7372\u53d6\u9396\uff0c\u53ef\u4ee5\u6e1b\u5c11\u55ae\u9ede\u6545\u969c\u7684\u98a8\u96aa\u3002<\/p>\n<h3 id=\"3-%e9%8e%96%e7%9a%84%e9%87%8d%e8%a9%a6%e6%a9%9f%e5%88%b6-xeyYMKzIAr\">3. \u9396\u7684\u91cd\u8a66\u6a5f\u5236<\/h3>\n<p>\u5728\u696d\u52d9\u908f\u8f2f\u4e2d\u5be6\u73fe\u9396\u7684\u91cd\u8a66\u6a5f\u5236\uff0c\u7576\u6aa2\u6e2c\u5230\u9396\u5df2\u7d93\u5931\u6548\u6642\uff0c\u53ef\u4ee5\u91cd\u65b0\u5617\u8a66\u7372\u53d6\u9396\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<pre><code>while (!isLockAcquired) {\n    \/\/ \u5617\u8a66\u7372\u53d6\u9396\n    isLockAcquired = SET lock_key \"owner_id\" NX PX 30000;\n}<\/code><\/pre>\n<h3 id=\"4-%e7%9b%a3%e6%8e%a7%e5%92%8c%e5%91%8a%e8%ad%a6-xeyYMKzIAr\">4. \u76e3\u63a7\u548c\u544a\u8b66<\/h3>\n<p>\u5efa\u7acb\u76e3\u63a7\u7cfb\u7d71\uff0c\u5c0d\u9396\u7684\u4f7f\u7528\u60c5\u6cc1\u9032\u884c\u76e3\u63a7\uff0c\u4e26\u5728\u9396\u5931\u6548\u6642\u767c\u51fa\u544a\u8b66\uff0c\u4ee5\u4fbf\u53ca\u6642\u8655\u7406\u554f\u984c\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xeyYMKzIAr\">\u7e3d\u7d50<\/h2>\n<p>Redis\u9396\u7684\u904e\u671f\u554f\u984c\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u662f\u5e38\u898b\u7684\u6311\u6230\u3002\u901a\u904e\u5408\u7406\u8a2d\u8a08\u9396\u7684\u904e\u671f\u6642\u9593\u3001\u4f7f\u7528Redlock\u7b97\u6cd5\u3001\u5be6\u73fe\u91cd\u8a66\u6a5f\u5236\u4ee5\u53ca\u5efa\u7acb\u76e3\u63a7\u7cfb\u7d71\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u9396\u904e\u671f\u5e36\u4f86\u7684\u5f71\u97ff\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u9396\u904e\u671f\u5f8c\uff0c\u61c9\u7acb\u5373\u6aa2\u67e5\u9396\u7684\u72c0\u614b\uff0c\u91cd\u65b0\u7372\u53d6\u9396\u6216\u5be6\u65bd\u5176\u4ed6\u540c\u6b65\u6a5f\u5236\u4ee5\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\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-129431","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129431","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=129431"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129431\/revisions"}],"predecessor-version":[{"id":129432,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129431\/revisions\/129432"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129431"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}