{"id":415,"date":"2025-10-14T17:37:48","date_gmt":"2025-10-14T09:37:48","guid":{"rendered":"https:\/\/blog.libra5.cool\/?p=415"},"modified":"2025-10-14T17:37:48","modified_gmt":"2025-10-14T09:37:48","slug":"%e5%88%86%e5%b8%83%e5%bc%8f%e7%b3%bb%e7%bb%9f%e5%ad%a6%e4%b9%a0%e5%b0%8f%e8%ae%b011-farm-%e4%b8%8e-occ","status":"publish","type":"post","link":"https:\/\/blog.libra5.cool\/?p=415","title":{"rendered":"\u5206\u5e03\u5f0f\u7cfb\u7edf\u5b66\u4e60\u5c0f\u8bb011\u00a0\u2014\u2014\u00a0FARM \u4e0e OCC"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u201cHi\uff0c\u8fd9\u662f\u5c0f5\u81ea\u5b66\u7b97\u529b\u5927\u96c6\u7fa4\u76f8\u5173\u77e5\u8bc6\u7684\u7b2c11\u7bc7\u7b14\u8bb0\u3002\u5728\u4e4b\u524d\u6211\u4eec\u7b80\u5355\u8ba4\u8bc6\u4e86Spanner\u65b9\u6848\uff0c\u4eca\u5929\u6211\u4eec\u5c06\u5bf9\u6bd4\u5176\u4e0eFARM\u65b9\u6848\u7684\u533a\u522b\uff0c\u5e76\u5c55\u5f00\u804a\u804a\u4e50\u89c2\u5e76\u53d1\u63a7\u5236\u3002\u201d<\/p>\n<cite>\u6458\u8981<\/cite><\/blockquote>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u4f5c\u4e3a\u5206\u5e03\u5f0f\u65b9\u6848\u7684\u4e00\u79cd\uff0cFARM \u4e0e Spanner \u90fd\u5b9e\u73b0\u4e86\u590d\u5236\uff0c\u5e76\u4e14\u5b83\u4eec\u4f7f\u7528\u4e24\u9636\u6bb5\u63d0\u4ea4\u6765\u5904\u7406\u4e8b\u52a1\uff0c\u4f46\u4e24\u8005\u6240\u4fa7\u91cd\u7684\u65b9\u5411\u5e76\u4e0d\u4e00\u6837\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><br>\u5bf9\u4e8e Spanner \uff1a<\/p>\n\n\n\n<p>\u5176\u4e3b\u8981\u5173\u6ce8\u70b9\u662f\u5730\u7406\u590d\u5236\uff0c\u5373\u80fd\u591f\u5728\u4e1c\u897f\u6d77\u5cb8\u4ee5\u53ca\u4e0d\u540c\u7684\u6570\u636e\u4e2d\u5fc3\u62e5\u6709\u526f\u672c\uff0c\u5e76\u80fd\u591f\u8fdb\u884c\u6d89\u53ca\u591a\u4e2a\u4e0d\u540c\u5730\u70b9\u6570\u636e\u7684\u9ad8\u6548\u4ea4\u6613\u3002\u5b83\u6700\u5177\u521b\u65b0\u4e4b\u5904\u5728\u4e8e\uff0c\u4e3a\u4e86\u5c1d\u8bd5\u89e3\u51b3\u957f\u8ddd\u79bb\u8fdb\u884c\u4e24\u9636\u6bb5\u63d0\u4ea4\u6240\u9700\u65f6\u95f4\u7684\u95ee\u9898\uff0c\u5b83\u4e3a\u53ea\u8bfb\u4e8b\u52a1\u8bbe\u7f6e\u4e86\u4e00\u6761\u7279\u6b8a\u7684\u4f18\u5316\u8def\u5f84\u5e76\u4f7f\u7528\u540c\u6b65\u65f6\u95f4\u3002\u5728Spanner\u7cfb\u7edf\u4e2d\uff0c\u4eba\u4eec\u4e3b\u8981\u62c5\u5fe7\u7684\u74f6\u9888\u662f\u7f51\u7edc\u901f\u5ea6\uff0c\u5373\u6570\u636e\u4e2d\u5fc3\u4e4b\u95f4\u7684\u7f51\u7edc\u5ef6\u8fdf\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u5bf9\u4e8e FARM \uff1a<\/p>\n\n\n\n<p>\u5b83\u5047\u8bbe\u6240\u6709\u526f\u672c\u90fd\u4f4d\u4e8e\u540c\u4e00\u6570\u636e\u4e2d\u5fc3\u3002\u6240\u4ee5\uff0c\u5b83\u5e76\u975e\u8bd5\u56fe\u89e3\u51b3Spanner\u6240\u9762\u4e34\u7684\u95ee\u9898\uff0c\u5373\uff1a\u5982\u679c\u6574\u4e2a\u6570\u636e\u4e2d\u5fc3\u53d1\u751f\u6545\u969c\uff0c\u5c06\u4f1a\u53d1\u751f\u4ec0\u4e48\u60c5\u51b5\uff1f\u5176\u5bb9\u9519\u80fd\u529b\u4e3b\u8981\u4f53\u73b0\u5728\u5e94\u5bf9\u4e2a\u522b\u6545\u969c\u6216\u5c1d\u8bd5\u5728\u6574\u5ea7\u6570\u636e\u4e2d\u5fc3\u65ad\u7535\u5e76\u6062\u590d\u4f9b\u7535\u540e\u8fdb\u884c\u6062\u590d\u3002\u5b83\u91c7\u7528\u4e86RDMA\u6280\u672f\uff0c\u4f46RDMA\u5728\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u4e5f\u9650\u5236\u4e86\u65b9\u6848\u6574\u4f53\u7684\u8bbe\u8ba1\u9009\u9879\u3002\u56e0\u6b64\uff0cFARM\u4e0d\u5f97\u4e0d\u91c7\u7528\u4e50\u89c2\u5e76\u53d1\u63a7\u5236\uff08OCC\uff09\u3002\u4e5f\u6b63\u662f\u56e0\u4e3a\u91c7\u7528RDMA\u6280\u672f\uff0c\u5176\u6027\u80fd\u8fdc\u8fdc\u9ad8\u4e8eSpanner\u3002\u5728FARM\u7cfb\u7edf\u4e2d\uff0c\u74f6\u9888\u662f\u670d\u52a1\u5668\u7684CPU\u65f6\u95f4\uff0c\u56e0\u4e3a\u4ed6\u4eec\u901a\u8fc7\u5c06\u6240\u6709\u526f\u672c\u653e\u7f6e\u5728\u540c\u4e00\u6570\u636e\u4e2d\u5fc3\uff0c\u5728\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u5ffd\u7565\u4e86\u7f51\u7edc\u5ef6\u8fdf\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>FARM\u57fa\u672c\u67b6\u6784<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u6570\u636e\u6839\u636e\u952e\u88ab\u5206\u7247\u5e76\u5206\u6563\u5728\u591a\u4e2a\u4e3b\u3001\u5907\u4efd\u5bf9\u4e2d\uff0c\u5982P1\u3001B1\uff1bP2\u3001B2\uff1b&#8230;&nbsp;\u8fd9\u610f\u5473\u7740\uff0c\u6bcf\u6b21\u66f4\u65b0\u6570\u636e\u65f6\uff0c\u90fd\u9700\u8981\u540c\u65f6\u5728\u4e3b\u670d\u52a1\u5668\u548c\u5907\u4efd\u670d\u52a1\u5668\u4e0a\u8fdb\u884c\u66f4\u65b0\u3002\u8fdb\u884c\u8bfb\u53d6\u64cd\u4f5c\u65f6\uff0c\u59cb\u7ec8\u9700\u8981\u4ece\u4e3b\u8282\u70b9\u8bfb\u53d6\u3002\u6b64\u5916\uff0c\u6bcf\u4e2a\u5ba2\u6237\u7aef\u4e0d\u4ec5\u6267\u884c\u4e8b\u52a1\uff0c\u8fd8\u5145\u5f53\u4e24\u9636\u6bb5\u63d0\u4ea4\u7684\u4e8b\u52a1\u534f\u8c03\u8005\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>FARM\u5bb9\u9519\u6027<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u53ea\u8981\u7ed9\u5b9a\u5206\u7247\u7684\u4e00\u4e2a\u526f\u672c\u53ef\u7528\uff0c\u90a3\u4e48\u8be5\u5206\u7247\u5c31\u4f1a\u4fdd\u6301\u53ef\u7528\u72b6\u6001\u3002\u56e0\u6b64\u53ea\u9700\u8981\u4e00\u4e2a\u6d3b\u8dc3\u526f\u672c\uff0c\u800c\u975e\u591a\u6570\u3002\u5982\u679c\u5728\u6570\u636e\u4e2d\u5fc3\u8303\u56f4\u5185\u53d1\u751f\u505c\u7535\uff0c\u53ea\u8981\u7cfb\u7edf\u4e2d\u6bcf\u4e2a\u5206\u7247\u81f3\u5c11\u6709\u4e00\u4e2a\u526f\u672c\uff0c\u5b83\u5c31\u80fd\u6062\u590d\u3002\u5373\uff0c\u62e5\u6709F + 1 \u7684\u526f\u672c\uff0c\u90a3\u4e48\u5b83\u4eec\u80fd\u591f\u5bb9\u5fcd\u8be5\u5206\u7247\u6700\u591a F \u4e2a\u6545\u969c\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>FARM\u5982\u4f55\u5b9e\u73b0\u9ad8\u6027\u80fd<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u6700\u4e3b\u8981\u65b9\u5f0f\u662f\u901a\u8fc7\u5206\u7247\uff08sharding\uff09\u6765\u5b9e\u73b0\u3002\u5728\u5b9e\u9a8c\u4e2d\uff0c\u5c06\u6570\u636e\u5206\u7247\u81f390\u53f0\u670d\u52a1\u5668\uff0c\u53ea\u8981\u4e0d\u540c\u5206\u7247\u4e2d\u7684\u64cd\u4f5c\u5f7c\u6b64\u6216\u591a\u6216\u5c11\u72ec\u7acb\uff0c\u5c31\u80fd\u81ea\u52a8\u5b9e\u73b090\u500d\u7684\u901f\u5ea6\u63d0\u5347\uff0c\u8fd9\u662f\u56e0\u4e3a\u53ef\u4ee5\u5c06\u6b63\u5728\u8fd0\u884c\u7684\u4efb\u52a1\u5e76\u884c\u8fd0\u884c\u572890\u53f0\u670d\u52a1\u5668\u4e0a\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u8fd8\u6709\u4e00\u79cd\u63d0\u9ad8\u6027\u80fd\u7684\u65b9\u6cd5\u662f\u201c\u5185\u6838\u65c1\u8def\u201d (kernel bypass) \u3002\u5176\u7406\u5ff5\u662f\uff0c\u5e94\u7528\u7a0b\u5e8f\u4e0d\u518d\u9700\u8981\u5c06\u5176\u6240\u6709\u6570\u636e\u901a\u8fc7\u590d\u6742\u7684\u5185\u6838\u4ee3\u7801\u6808\u5411\u4e0b\u53d1\u9001\uff0c\u800c\u662f\u7531\u5185\u6838\u914d\u7f6e\u8ba1\u7b97\u673a\u7684\u4fdd\u62a4\u673a\u5236\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u76f4\u63a5\u8bbf\u95ee\u7f51\u7edc\u63a5\u53e3\u5361\u3002\u8fd9\u610f\u5473\u7740\u5e94\u7528\u7a0b\u5e8f\u7ea7\u4ee3\u7801\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u7f51\u7edc\u63a5\u53e3\u5361\uff08Network Interface Card, NIC)\uff0c\u800c\u65e0\u9700\u5185\u6838\u4ecb\u5165\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u7b2c\u4e09\u4e2a\u6280\u5de7\u662f\u786e\u4fdd\u6240\u6709\u6570\u636e\u90fd\u80fd\u9002\u914d\u4e8e\u670d\u52a1\u5668\u7684RAM\u4e2d\uff1a\u5b83\u4eec\u5b9e\u9645\u4e0a\u5e76\u4e0d\u5c06\u6570\u636e\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\u3002\u4e4b\u6240\u4ee5\u53ef\u4ee5\u8fd9\u4e48\u64cd\u4f5c\u662f\u56e0\u4e3a\u4f7f\u7528\u4e86\u67d0\u79cd\u201c\u975e\u6613\u5931\u6027RAM\u201d\uff0c\u786e\u4fdd\u65ad\u7535\u540e\u7684\u6570\u636e\u5f97\u4ee5\u4fdd\u5b58\u3002\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u5f15\u53f7\u5462\uff1f\u8ba9\u6211\u4eec\u6765\u63ed\u6653\uff1a\u5f53\u5ba2\u6237\u7aef\u4e8b\u52a1\u66f4\u65b0\u67d0\u6761\u6570\u636e\u65f6\uff0c\u5176\u771f\u6b63\u542b\u4e49\u662f\u5b83\u5411\u5b58\u50a8\u8be5\u6570\u636e\u7684\u76f8\u5173\u670d\u52a1\u5668\u53d1\u51fa\u8bf7\u6c42\uff0c\u5e76\u4fc3\u4f7f\u8fd9\u4e9b\u670d\u52a1\u5668\u5728\u5185\u5b58\uff08RAM\uff09\u4e2d\u76f4\u63a5\u4fee\u6539\u8be5\u4e8b\u52a1\u6240\u6d89\u53ca\u7684\u5bf9\u8c61\u3002\u6570\u636e\u4e2d\u5fc3\u4f1a\u5728\u6bcf\u4e2a\u673a\u67b6\u4e2d\u653e\u7f6e\u4e00\u4e2a\u5927\u7535\u6c60\uff0c\u901a\u8fc7\u8fd9\u4e9b\u7535\u6c60\u8fd0\u884c\u7535\u6e90\u4f9b\u5e94\u7cfb\u7edf\uff0c\u8fd9\u6837\u4e00\u65e6\u53d1\u751f\u7535\u6e90\u6545\u969c\uff0c\u7535\u6c60\u5c31\u4f1a\u81ea\u52a8\u63a5\u7ba1\u5e76\u4fdd\u6301\u6240\u6709\u673a\u5668\u8fd0\u884c\uff0c\u81f3\u5c11\u6301\u7eed\u5230\u7535\u6c60\u8017\u5c3d\u4e3a\u6b62\u3002<\/p>\n\n\n\n<p>\u5f53\u7535\u6c60\u7cfb\u7edf\u68c0\u6d4b\u5230\u4e3b\u7535\u6e90\u6545\u969c\u65f6\uff0c\u5b83\u4f1a\u5728\u7ef4\u6301\u670d\u52a1\u5668\u8fd0\u884c\u7684\u540c\u65f6\uff0c\u5411\u6240\u6709\u670d\u52a1\u5668\u53d1\u51fa\u8b66\u62a5\u3002\u901a\u8fc7\u67d0\u79cd\u4e2d\u65ad\u6216\u6d88\u606f\u544a\u77e5\u5b83\u4eec\uff1a\u201c\u6ce8\u610f\uff0c\u7535\u6e90\u521a\u521a\u5931\u6548\u3002\u4f60\u4eec\u53ea\u5269\u4e0b10\u5206\u949f\u65f6\u95f4\uff0c\u7535\u6c60\u4e5f\u5c06\u8017\u5c3d\u3002\u201d\u5728\u8fd9\u4e2a\u9636\u6bb5\uff0cFARM\u670d\u52a1\u5668\u4e0a\u7684\u8f6f\u4ef6\u4f1a\u590d\u5236\u6240\u6709\u6392\u540d\uff0c\u505c\u6b62\u5bf9FARM\u7684\u6240\u6709\u5904\u7406\uff0c\u7136\u540e\u670d\u52a1\u5668\u90fd\u4f1a\u5c06\u5176\u5168\u90e8RAM\u590d\u5236\u5230\u8fde\u63a5\u5230\u8be5\u670d\u52a1\u5668\u7684\u56fa\u6001\u9a71\u52a8\u5668\u4e0a\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u53ef\u80fd\u9700\u8981\u51e0\u5206\u949f\u3002\u4e00\u65e6\u6240\u6709RAM\u6570\u636e\u590d\u5236\u5230\u56fa\u6001\u786c\u76d8\u4e2d\uff0c\u673a\u5668\u4fbf\u4f1a\u81ea\u884c\u5173\u95ed\u5e76\u65ad\u7535\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u5b58\u5728\u5176\u4ed6\u539f\u56e0\u5bfc\u81f4\u670d\u52a1\u5668\u6545\u969c\uff0c\u4f8b\u5982\u786c\u4ef6\u51fa\u73b0\u95ee\u9898\uff0c\u6216\u8005\u8f6f\u4ef6\u4e2d\u7684\u67d0\u4e2a\u9519\u8bef\u5f15\u53d1\u5d29\u6e83\uff0c\u8fd9\u4e9b\u5d29\u6e83\u4e0e\u201c\u975e\u6613\u5931\u6027RAM\u201d\u7cfb\u7edf\u65e0\u5173\u3002\u8fd9\u4e9b\u5d29\u6e83\u5c06\u5bfc\u81f4\u673a\u5668\u91cd\u542f\uff0c\u5e76\u4e22\u5931\u5176RAM\u4e2d\u7684\u8089\u5bb9\uff0c\u4e14\u65e0\u6cd5\u6062\u590d\u8fd9\u4e9b\u5185\u5bb9\u3002\u8fd9\u79cdNV-RAM\u65b9\u6848\u5b9e\u8d28\u4e0a\u6d88\u9664\u4e86\u6301\u4e45\u5316\u901f\u7387\u4f5c\u4e3a\u7cfb\u7edf\u6027\u80fd\u74f6\u9888\u7684\u95ee\u9898\uff0c\u4ec5\u7559\u4e0b\u7f51\u7edc\u548cCPU\u4f5c\u4e3a\u6027\u80fd\u74f6\u9888\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u7b2c\u56db\u4e2a\u6280\u5de7\u5c31\u662f\u524d\u9762\u6211\u4eec\u6240\u8bf4\u7684RDMA\u6280\u672f\u3002\u5373\uff0c\u8fdc\u7a0b\u76f4\u63a5\u5185\u5b58\u8bbf\u95ee\uff08Remote Direct Memory Access)\u3002\u4e24\u53f0\u901a\u8fc7\u652f\u6301RDMA\u7f51\u5361\u8fde\u63a5\u7684\u670d\u52a1\u5668\u751a\u81f3\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u3001\u4fee\u6539\u5bf9\u65b9\u7684\u5185\u5b58\u6570\u636e\u3002\u5176\u672c\u8d28\u4e0a\u662f\u4e00\u79cd\u7cbe\u5de7\u7684\u7f51\u7edc\u63a5\u56de\u5361\uff0c\u80fd\u591f\u63a5\u6536\u6307\u4ee4\u5305\u3002\u4f7f\u5f97\u7f51\u7edc\u63a5\u53e3\u5361\u80fd\u591f\u76f4\u63a5\u8bfb\u5199\u670d\u52a1\u5668\u5185\u5b58\uff0c\u800c\u65e0\u9700\u4e2d\u65ad\u670d\u52a1\u5e2e\u3002<\/p>\n\n\n\n<p>\u5982\u4f55\u5c06RDMA\u4e0e\u4e8b\u52a1\u5904\u7406\u3001\u5206\u7247\u548c\u590d\u5236\u76f8\u7ed3\u5408\uff1f\u56e0\u4e3a\u8981\u6784\u5efa\u4e00\u4e2a\u771f\u6b63\u5b9e\u7528\u7684\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u5206\u7247\u548c\u4e8b\u52a1\u590d\u5236\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u3002\u5982\u679c\u91c7\u7528\u4e24\u9636\u6bb5\u63d0\u4ea4\u4e2d\u7684\u4e8b\u52a1\uff0c\u670d\u52a1\u5668\u4e0a\u7684\u6570\u636e\u4e0d\u4ec5\u4ec5\u662f\u6570\u636e\uff0c\u8fd8\u5305\u62ec\u5df2\u63d0\u4ea4\u7684\u6570\u636e\u4ee5\u53ca\u5df2\u5199\u5165\u4f46\u5c1a\u672a\u63d0\u4ea4\u7684\u6570\u636e\u3002\u540c\u6837\uff0c\u4f20\u7edf\u4e0a\uff0c\u670d\u52a1\u5668\u8d1f\u8d23\u5224\u65ad\u6700\u8fd1\u66f4\u65b0\u7684\u6570\u636e\u662f\u5426\u5df2\u63d0\u4ea4\uff0c\u5e76\u4fdd\u62a4\u5ba2\u6237\u7aef\uff0c\u9632\u6b62\u4ed6\u4eec\u770b\u5230\u88ab\u9501\u5b9a\u6216\u5c1a\u672a\u786e\u8ba4\u5df2\u63d0\u4ea4\u7684\u6570\u636e\u3002\u8fd9\u5c31\u9700\u8981\u4f7f\u7528\u5230\u4e50\u89c2\u5e76\u53d1\u63a7\u5236\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>OCC \uff08Optimistic Concurrency 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