{"id":71104,"date":"2026-10-21T10:12:17","date_gmt":"2026-10-21T02:12:17","guid":{"rendered":"https:\/\/www.dataplugs.com\/read-replicas-for-scaling-database-workloads-on-bare-metal\/"},"modified":"2026-10-21T10:13:52","modified_gmt":"2026-10-21T02:13:52","slug":"read-replicas-for-scaling-database-workloads-on-bare-metal","status":"publish","type":"post","link":"https:\/\/www.dataplugs.com\/sc\/read-replicas-for-scaling-database-workloads-on-bare-metal\/","title":{"rendered":"\u88f8\u673a\u670d\u52a1\u5668\u8bfb\u526f\u672c\uff0c\u6269\u5c55\u6570\u636e\u5e93\u5de5\u4f5c\u8d1f\u8f7d\u6307\u5357"},"content":{"rendered":"<p>\u8bfb\u526f\u672c\u662f\u4ece\u4e3b\u6570\u636e\u5e93\u91cd\u653e\u53d8\u66f4\u3001\u5e76\u5904\u7406\u53ea\u8bfb\u67e5\u8be2\u7684\u6b21\u8981\u6570\u636e\u5e93\u5b9e\u4f8b\u3002\u4f01\u4e1a\u53ef\u4ee5\u628a\u62a5\u8868\u3001\u641c\u7d22\u3001\u4eea\u8868\u677f\u548c\u5e94\u7528\u7a0b\u5e8f\u8bfb\u53d6\u6d41\u91cf\u5206\u6563\u5230\u526f\u672c\uff0c\u800c\u4e0d\u5fc5\u6539\u53d8\u4e3b\u6570\u636e\u5e93\u7684\u5199\u5165\u8def\u5f84\u3002<\/p>\n<p>\u5728\u88f8\u673a\u670d\u52a1\u5668\u4e0a\uff0c\u56e2\u961f\u53ef\u4ee5\u63a7\u5236\u6570\u636e\u5e93\u8282\u70b9\u7684 CPU\u3001\u5185\u5b58\u3001NVMe \u5b58\u50a8\u3001\u7f51\u7edc\u8def\u5f84\u548c\u64cd\u4f5c\u7cfb\u7edf\u8bbe\u7f6e\uff0c\u6709\u52a9\u4e8e\u6309\u5b9e\u9645\u8d1f\u8f7d\u8fdb\u884c\u8f83\u53ef\u9884\u6d4b\u7684\u5bb9\u91cf\u89c4\u5212\uff1b\u4f46\u8bfb\u526f\u672c\u4ecd\u9700\u8981\u8def\u7531\u3001\u4e00\u81f4\u6027\u89c4\u5219\u3001\u5ef6\u8fdf\u76d1\u6d4b\u3001\u6545\u969c\u5207\u6362\u6d41\u7a0b\u548c\u72ec\u7acb\u5907\u4efd\u3002<\/p>\n<h2>\u8bfb\u526f\u672c\u5982\u4f55\u6269\u5c55\u6570\u636e\u5e93\u5de5\u4f5c\u8d1f\u8f7d<\/h2>\n<p>\u4e3b\u6570\u636e\u5e93\u7ee7\u7eed\u8d1f\u8d23\u5199\u5165\uff0c\u800c\u4e00\u4e2a\u6216\u591a\u4e2a\u526f\u672c\u5219\u91cd\u653e\u4e8b\u52a1\u65e5\u5fd7\u5e76\u5904\u7406\u5408\u9002\u7684\u8bfb\u53d6\u8bf7\u6c42\u3002\u628a\u6307\u5b9a\u67e5\u8be2\u79fb\u79bb\u4e3b\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u51cf\u5c11\u8d44\u6e90\u7ade\u4e89\u3001\u4fdd\u62a4\u5199\u5165\u5ef6\u8fdf\uff0c\u5e76\u4e3a\u62a5\u8868\u5de5\u4f5c\u63d0\u4f9b\u72ec\u7acb\u7684\u5bb9\u91cf\u8def\u5f84\u3002<\/p>\n<p>\u6570\u636e\u5e93\u5bc6\u96c6\u578b\u5de5\u4f5c\u8d1f\u8f7d\u4e0d\u53ea\u53d6\u51b3\u4e8e\u6838\u5fc3\u6570\u91cf\u3002Dataplugs \u7684<a href=\"https:\/\/www.dataplugs.com\/sc\/how-to-design-high-iops-servers-for-database-heavy-workloads\/\">\u9ad8 IOPS \u6570\u636e\u5e93\u5de5\u4f5c\u8d1f\u8f7d\u670d\u52a1\u5668\u8bbe\u8ba1\u6307\u5357<\/a>\u6587\u7ae0\u8bf4\u660e\u5de5\u4f5c\u8d1f\u8f7d\u5206\u6790\u3001IOPS\u3001\u8bfb\u5199\u6bd4\u4f8b\uff0c\u4ee5\u53ca\u8bfb\u526f\u672c\u5982\u4f55\u5206\u62c5\u5206\u6790\u67e5\u8be2\u3002<\/p>\n<ul>\n<li>\u9700\u8981\u5b9e\u65f6\u6570\u636e\u65f6\uff0c\u628a\u5199\u5165\u53ca\u5199\u5165\u540e\u7acb\u5373\u8bfb\u53d6\u7684\u64cd\u4f5c\u7559\u5728\u4e3b\u6570\u636e\u5e93<\/li>\n<li>\u901a\u8fc7\u5e94\u7528\u7a0b\u5e8f\u6216\u8def\u7531\u5c42\uff0c\u628a\u5408\u9002\u7684\u53ea\u8bfb\u8bf7\u6c42\u4f20\u9001\u5230\u526f\u672c<\/li>\n<li>\u628a\u62a5\u8868\u3001\u641c\u7d22\u548c\u4eea\u8868\u677f\u6d41\u91cf\u4e0e\u4ea4\u6613\u67e5\u8be2\u5206\u5f00\u5904\u7406<\/li>\n<li>\u5f53\u8bfb\u53d6\u9700\u6c42\u8d85\u51fa\u5355\u4e00\u8282\u70b9\u7684\u5b9e\u9645\u5bb9\u91cf\u65f6\uff0c\u518d\u589e\u52a0\u526f\u672c<\/li>\n<li>\u9664\u975e\u6570\u636e\u5e93\u53ca\u8def\u7531\u8bbe\u8ba1\u53e6\u6709\u4fdd\u8bc1\uff0c\u5426\u5219\u5e94\u628a\u526f\u672c\u89c6\u4e3a\u6700\u7ec8\u4e00\u81f4<\/li>\n<\/ul>\n<h2>\u8bfb\u53d6\u8def\u7531\u548c\u4e00\u81f4\u6027\u9009\u62e9<\/h2>\n<p>\u53ea\u6709\u5728\u5e94\u7528\u7a0b\u5e8f\u628a\u5b89\u5168\u7684\u67e5\u8be2\u4f20\u9001\u5230\u526f\u672c\u65f6\uff0c\u526f\u672c\u624d\u4f1a\u5e26\u6765\u6548\u76ca\u3002\u8def\u7531\u53ef\u4ee5\u5728\u5e94\u7528\u7a0b\u5e8f\u3001\u6570\u636e\u5e93\u4ee3\u7406\u6216\u8fde\u63a5\u6c60\u8fdb\u884c\uff0c\u4f46\u5fc5\u987b\u6e05\u695a\u533a\u5206\u53ea\u8bfb\u64cd\u4f5c\uff0c\u5e76\u8ba2\u5b9a\u53ef\u63a5\u53d7\u7684\u6570\u636e\u5ef6\u8fdf\u7a0b\u5ea6\u3002<\/p>\n<p>\u8def\u7531\u51b3\u5b9a\u4e5f\u4f1a\u5f71\u54cd\u54cd\u5e94\u65f6\u95f4\u76ee\u6807\u3002Dataplugs \u7684<a href=\"https:\/\/www.dataplugs.com\/sc\/how-can-you-optimize-storage-latency-for-transaction-intensive-applications\/\">\u5982\u4f55\u4f18\u5316\u4ea4\u6613\u5bc6\u96c6\u578b\u5e94\u7528\u7684\u5b58\u50a8\u5ef6\u8fdf<\/a>\u6587\u7ae0\u8bf4\u660e\u8c03\u6574\u4ea4\u6613\u5bc6\u96c6\u578b\u7cfb\u7edf\u65f6\uff0c\u5e94\u628a\u5b58\u50a8\u5ef6\u8fdf\u3001\u8bfb\u526f\u672c\u53ca\u67e5\u8be2\u884c\u4e3a\u4e00\u5e76\u8003\u8651\u3002<\/p>\n<ul>\n<li>\u5148\u5b9a\u4e49\u6bcf\u9879\u8bf7\u6c42\u662f\u5426\u9700\u8981\u5f3a\u4e00\u81f4\u6027\uff0c\u6216\u53ef\u4ee5\u5bb9\u8bb8\u77ed\u6682\u5ef6\u8fdf<\/li>\n<li>\u8bfb\u53d6\u540e\u7acb\u5373\u5199\u5165\u7684\u6d41\u7a0b\u5e94\u7559\u5728\u4e3b\u6570\u636e\u5e93\uff0c\u6216\u7b49\u5f85\u526f\u672c\u8ffd\u4e0a\u8fdb\u5ea6<\/li>\n<li>\u4f7f\u7528\u8fde\u63a5\u6c60\uff0c\u907f\u514d\u8def\u7531\u53d8\u5316\u5efa\u7acb\u8fc7\u591a\u4e0d\u5fc5\u8981\u7684\u6570\u636e\u5e93\u8fde\u63a5<\/li>\n<li>\u907f\u514d\u957f\u65f6\u95f4\u62a5\u8868\u4e0e\u4f4e\u5ef6\u8fdf\u8bfb\u53d6\u5728\u540c\u4e00\u526f\u672c\u4e0a\u4e92\u76f8\u7ade\u4e89<\/li>\n<li>\u6d4b\u8bd5\u526f\u672c\u5ef6\u8fdf\u3001\u7ef4\u62a4\u53ca\u8282\u70b9\u79fb\u51fa\u8def\u7531\u6c60\u65f6\u7684\u6d41\u91cf\u5904\u7406<\/li>\n<\/ul>\n<h2>\u88f8\u673a\u670d\u52a1\u5668\u8bfb\u526f\u672c\u7684\u5bb9\u91cf\u89c4\u5212<\/h2>\n<p>\u526f\u672c\u540c\u65f6\u9700\u8981\u5904\u7406\u4e8b\u52a1\u65e5\u5fd7\u91cd\u653e\u53ca\u5206\u914d\u5230\u7684\u8bfb\u53d6\u67e5\u8be2\uff0c\u56e0\u6b64\u5bb9\u91cf\u5e94\u6309\u8bfb\u5199\u6bd4\u4f8b\u3001\u6570\u636e\u96c6\u3001\u5de5\u4f5c\u96c6\u5927\u5c0f\u3001\u67e5\u8be2\u7ec4\u5408\u3001\u5cf0\u503c\u8fde\u63a5\u6570\u53ca\u6062\u590d\u76ee\u6807\u89c4\u5212\uff0c\u800c\u4e0d\u80fd\u53ea\u770b\u5e73\u5747 CPU \u4f7f\u7528\u7387\u3002<\/p>\n<p>\u6d3b\u52a8\u6216\u62a5\u8868\u65f6\u6bb5\u53ef\u80fd\u4ee4\u8bfb\u53d6\u9700\u6c42\u7a81\u7136\u589e\u52a0\u3002Dataplugs \u7684<a href=\"https:\/\/www.dataplugs.com\/sc\/seasonal-traffic-management-resource-allocation\/\">\u5b63\u8282\u6027\u7f51\u7ad9\u6d41\u91cf\u9ad8\u5cf0\u7684\u8d44\u6e90\u5206\u914d\u4f18\u5316<\/a>\u6587\u7ae0\u8bf4\u660e\u5e94\u4ee5\u6d4b\u91cf\u6240\u5f97\u7684 CPU\u3001\u5185\u5b58\u3001\u5b58\u50a8\u548c\u5e26\u5bbd\u9700\u6c42\u89c4\u5212\u72ec\u7acb\u57fa\u7840\u8bbe\u65bd\uff0c\u800c\u4e0d\u662f\u53ea\u6309\u5e73\u5747\u503c\u4f30\u7b97\u3002<\/p>\n<ul>\n<li>\u4e3a\u67e5\u8be2\u6267\u884c\u3001\u4e8b\u52a1\u65e5\u5fd7\u91cd\u653e\u53ca\u7ef4\u62a4\u5de5\u4f5c\u9884\u7559 CPU \u4f59\u91cf<\/li>\n<li>\u4e3a\u5de5\u4f5c\u96c6\u3001\u6570\u636e\u5e93\u7f13\u5b58\u3001\u8fde\u63a5\u6c60\u548c\u64cd\u4f5c\u7cfb\u7edf\u7f13\u5b58\u5206\u914d\u5185\u5b58<\/li>\n<li>\u6570\u636e\u6587\u4ef6\u3001\u4e8b\u52a1\u65e5\u5fd7\u53ca\u4e34\u65f6\u5de5\u4f5c\u4f7f\u7528\u4f4e\u5ef6\u8fdf NVMe \u5b58\u50a8<\/li>\n<li>\u5e26\u5bbd\u9700\u8981\u5e94\u4ed8\u590d\u5236\u3001\u5ba2\u6237\u7aef\u8bfb\u53d6\u3001\u5907\u4efd\u548c\u526f\u672c\u91cd\u5efa<\/li>\n<li>\u4e3a\u6545\u969c\u5207\u6362\u3001\u91cd\u5efa\u7d22\u5f15\u3001vacuum \u548c\u7a81\u7136\u7684\u8bfb\u53d6\u9ad8\u5cf0\u4fdd\u7559\u5bb9\u91cf\u4f59\u91cf<\/li>\n<\/ul>\n<p>Tip: \u5e94\u4f7f\u7528\u6700\u5927\u800c\u5408\u7406\u7684\u6570\u636e\u96c6\u548c\u67e5\u8be2\u9ad8\u5cf0\u8fdb\u884c\u6d4b\u8bd5\u3002\u526f\u672c\u5728\u5e73\u5747\u8d1f\u8f7d\u4e0b\u770b\u4f3c\u5145\u8db3\uff0c\u4ecd\u53ef\u80fd\u5728\u91cd\u653e\u3001\u62a5\u8868\u6216\u91cd\u5efa\u671f\u95f4\u843d\u540e\u3002<\/p>\n<h2>\u590d\u5236\u5ef6\u8fdf\u548c\u6570\u636e\u65b0\u9c9c\u5ea6\u76d1\u6d4b<\/h2>\n<p>\u590d\u5236\u5ef6\u8fdf\u4e0d\u53ea\u662f\u57fa\u7840\u8bbe\u65bd\u6307\u6807\uff0c\u4e5f\u4f1a\u76f4\u63a5\u5f71\u54cd\u7528\u6237\u770b\u5230\u7684\u6570\u636e\u3002\u526f\u672c\u5373\u4f7f\u4fdd\u6301\u8fde\u63a5\uff0c\u5df2\u5e94\u7528\u7684\u6570\u636e\u4ecd\u53ef\u80fd\u4e0d\u591f\u65b0\uff0c\u672a\u80fd\u652f\u6301\u4eea\u8868\u677f\u3001\u641c\u7d22\u7ed3\u679c\u6216\u8fd0\u8425\u51b3\u7b56\u3002\u56e0\u6b64\u5e94\u540c\u65f6\u76d1\u6d4b\u590d\u5236\u6d41\u7a0b\uff0c\u4ee5\u53ca\u5e94\u7528\u7a0b\u5e8f\u5b9e\u9645\u53d6\u5f97\u7684\u6570\u636e\u65b0\u9c9c\u5ea6\u3002<\/p>\n<ul>\n<li>\u53ef\u4ee5\u5229\u7528\u4e8b\u52a1\u65e5\u5fd7\u4f4d\u7f6e\u3001\u91cd\u653e\u65f6\u95f4\u3001\u961f\u5217\u5927\u5c0f\u3001\u67e5\u8be2\u5ef6\u8fdf\u53ca\u9519\u8bef\u7387\u627e\u51fa\u526f\u672c\u843d\u540e\u7684\u539f\u56e0\u3002\u544a\u8b66\u95e8\u69db\u5e94\u6309\u5de5\u4f5c\u8d1f\u8f7d\u8bbe\u5b9a\uff1a\u5206\u6790\u67e5\u8be2\u53ef\u4ee5\u63a5\u53d7\u51e0\u79d2\u5ef6\u8fdf\uff0c\u4f46\u5e93\u5b58\u6216\u8d26\u6237\u6d41\u7a0b\u53ef\u80fd\u4e0d\u80fd\u63a5\u53d7\u3002<\/li>\n<li>\u5728\u6570\u636e\u5e93\u652f\u6301\u7684\u60c5\u51b5\u4e0b\uff0c\u540c\u65f6\u4ee5\u65f6\u95f4\u548c\u65e5\u5fd7\u6570\u91cf\u6d4b\u91cf\u5ef6\u8fdf<\/li>\n<li>\u8ffd\u8e2a\u91cd\u653e\u901f\u5ea6\u3001\u961f\u5217\u589e\u957f\u3001\u5b58\u50a8\u5ef6\u8fdf\u548c\u526f\u672c CPU 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split-brain \u4e3b\u6570\u636e\u5e93\u3002\u6545\u969c\u6062\u590d\u548c\u526f\u672c\u91cd\u5efa\u6b65\u9aa4\u4e5f\u5e94\u8bb0\u5f55\u5728\u540c\u4e00\u4efd\u64cd\u4f5c\u624b\u518c\u5185\u3002<\/p>\n<ul>\n<li>\u6e05\u695a\u5b9a\u4e49\u8c01\u6216\u4ec0\u4e48\u5de5\u5177\u6709\u6743\u63d0\u5347\u526f\u672c<\/li>\n<li>\u5141\u8bb8\u65b0\u5199\u5165\u8005\u8fd0\u884c\u524d\uff0c\u5148\u9694\u79bb\u6216\u56f4\u5835\u65e7\u4e3b\u6570\u636e\u5e93<\/li>\n<li>\u4f7f\u7528\u7a33\u5b9a\u7684\u5e94\u7528\u7a0b\u5e8f\u7aef\u70b9\u3001\u4ee3\u7406\u6216\u53d7\u63a7 DNS 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