{"id":454,"date":"2021-08-26T16:01:30","date_gmt":"2021-08-26T08:01:30","guid":{"rendered":"https:\/\/aif.amtbbs.org\/?p=454"},"modified":"2021-08-26T16:01:30","modified_gmt":"2021-08-26T08:01:30","slug":"uber%e6%98%af%e5%a6%82%e4%bd%95%e4%bd%8e%e6%88%90%e6%9c%ac%e6%9e%84%e5%bb%ba%e5%bc%80%e6%ba%90%e5%a4%a7%e6%95%b0%e6%8d%ae%e5%b9%b3%e5%8f%b0%e7%9a%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/aif.amtbbs.org\/index.php\/2021\/08\/26\/454\/","title":{"rendered":"Uber\u662f\u5982\u4f55\u4f4e\u6210\u672c\u6784\u5efa\u5f00\u6e90\u5927\u6570\u636e\u5e73\u53f0\u7684\uff1f"},"content":{"rendered":"
\"\u56fe\u7247\"<\/section>\n
\u4f5c\u8005 | Uber Engineering<\/section>\n
\u8bd1\u8005 | \u738b\u5f3a<\/section>\n
\u7b56\u5212 | \u94b0\u83b9<\/section>\n

\u968f\u7740 Uber \u4e1a\u52a1\u7684\u6269\u5f20\uff0c\u4e3a\u516c\u53f8\u4e1a\u52a1\u63d0\u4f9b\u652f\u6301\u7684\u57fa\u7840\u6570\u636e\u6c60\u4e5f\u5728\u98de\u901f\u81a8\u80c0\uff0c\u5176\u5904\u7406\u6210\u672c\u6c34\u6da8\u8239\u9ad8\u3002\u5f53\u5927\u6570\u636e\u6210\u4e3a\u6211\u4eec\u6700\u5927\u7684\u8fd0\u7ef4\u652f\u51fa\u9879\u76ee\u4e4b\u4e00\u540e\uff0c\u6211\u4eec\u542f\u52a8\u4e86\u4e00\u9879\u964d\u4f4e\u6570\u636e\u5e73\u53f0\u6210\u672c\u7684\u8ba1\u5212\u3002\u8be5\u8ba1\u5212\u5c06\u95ee\u9898\u5206\u89e3\u4e3a\u4e09\u5927\u5206\u652f\uff1a\u5e73\u53f0\u6548\u7387\u3001\u4f9b\u5e94\u548c\u9700\u6c42\u3002\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u8ba8\u8bba Uber \u4e3a\u63d0\u9ad8\u6570\u636e\u5e73\u53f0\u6548\u7387\u548c\u964d\u4f4e\u6210\u672c\u6240\u505a\u7684\u4e00\u7cfb\u5217\u5de5\u4f5c\u3002<\/p>\n

\u5927\u6570\u636e\u6587\u4ef6\u683c\u5f0f\u4f18\u5316<\/section>\n

\u6211\u4eec\u7684\u5927\u90e8\u5206 Apache\u00aeHadoop\u00ae\u6587\u4ef6\u7cfb\u7edf\uff08HDFS\uff09\u7a7a\u95f4\u90fd\u88ab Apache Hive \u8868\u5360\u7528\u4e86\u3002\u8fd9\u4e9b\u8868\u4ee5 Apache Parquet \u6587\u4ef6\u683c\u5f0f\u6216 Apache ORC \u6587\u4ef6\u683c\u5f0f\u5b58\u50a8\u3002\u5c3d\u7ba1\u6211\u4eec\u8ba1\u5212\u5728\u672a\u6765\u7684\u67d0\u4e2a\u65f6\u5019\u5c06\u5b83\u4eec\u7edf\u4e00\u6574\u5408\u5230 Parquet\uff0c\u4f46\u7531\u4e8e\u8bb8\u591a\u7279\u6b8a\u9700\u6c42\uff08\u5305\u62ec\u7279\u5b9a\u6761\u4ef6\u4e0b\u7684\u517c\u5bb9\u6027\u548c\u6027\u80fd\uff09\uff0c\u6211\u4eec\u5c1a\u672a\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\u3002<\/p>\n

Parquet \u548c ORC \u6587\u4ef6\u683c\u5f0f\u90fd\u662f\u57fa\u4e8e\u5757\u7684\u5217\u683c\u5f0f\uff0c\u8fd9\u610f\u5473\u7740\u6587\u4ef6\u5305\u542b\u8bb8\u591a\u5757\uff0c\u6bcf\u4e2a\u5757\u5305\u542b\u5927\u91cf\u7684\u884c\uff08\u6bd4\u5982 10,000 \u884c\uff09\uff0c\u5b58\u50a8\u5728\u5217\u4e2d\u3002<\/p>\n

\u6211\u4eec\u82b1\u4e86\u5f88\u591a\u65f6\u95f4\u6765\u5206\u6790 HDFS \u4e0a\u7684\u6587\u4ef6\uff0c\u5e76\u51b3\u5b9a\u8fdb\u884c\u4ee5\u4e0b\u4f18\u5316\u5de5\u4f5c\uff0c\u4e3b\u8981\u9488\u5bf9 Parquet \u683c\u5f0f\uff1a<\/p>\n

    \n
  1. \u538b\u7f29\u7b97\u6cd5<\/strong>\uff1a\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u4f7f\u7528 GZIP Level 6 \u4f5c\u4e3a Parquet \u5185\u90e8\u7684\u538b\u7f29\u7b97\u6cd5\u3002\u6700\u8fd1\u5173\u4e8e Parquet \u652f\u6301 Facebook \u7684 ZSTD \u7b97\u6cd5\u7684\u793e\u533a\u8fdb\u5c55\u5f15\u8d77\u4e86\u6211\u4eec\u7684\u6ce8\u610f\u3002\u5728\u6211\u4eec\u7684\u5b9e\u9a8c\u4e2d\uff0c\u4e0e\u57fa\u4e8e GZIP \u7684 Parquet \u6587\u4ef6\u76f8\u6bd4\uff0cZSTD Level 9 \u548c Level 19 \u80fd\u591f\u5c06\u6211\u4eec\u7684 Parquet \u6587\u4ef6\u5927\u5c0f\u5206\u522b\u51cf\u5c11 8% \u548c 12%\u3002\u6b64\u5916\uff0cZSTD Level 9 \u548c Level 19 \u7684\u89e3\u538b\u901f\u5ea6\u90fd\u6bd4 GZIP Level 6 \u8981\u5feb\u3002\u6211\u4eec\u51b3\u5b9a\u91c7\u7528 ZSTD Level 9 \u91cd\u65b0\u538b\u7f29\u6211\u4eec\u8fc7\u671f 1 \u4e2a\u6708\u540e\u7684\u6570\u636e\uff0c\u5e76\u91c7\u7528 ZSTD Level 19 \u538b\u7f29\u6211\u4eec\u8fc7\u671f 3 \u4e2a\u6708\u540e\u7684\u6570\u636e\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u6211\u4eec\u7684\u5b9e\u9a8c\u4e2d\uff0cZSTD Level 9 \u6bd4 Level 19 \u5feb\u4e24\u500d\u3002\u8bf7\u6ce8\u610f\uff0c\u91cd\u65b0\u538b\u7f29\u4f5c\u4e1a\u662f\u540e\u53f0\u7ef4\u62a4\u4f5c\u4e1a\uff0c\u53ef\u4ee5\u4f7f\u7528\u65e0\u4fdd\u8bc1\u7684\u8ba1\u7b97\u8d44\u6e90\u8fd0\u884c\u3002\u9274\u4e8e\u6b64\u7c7b\u8d44\u6e90\u76f8\u5f53\u4e30\u5bcc\uff0c\u6211\u4eec\u57fa\u672c\u4e0a\u53ef\u4ee5\u5c06\u8fd9\u4e9b\u91cd\u538b\u7f29\u4f5c\u4e1a\u89c6\u4e3a\u514d\u8d39\u7684\u3002<\/li>\n<\/ol>\n
      \n
    1. \u5217\u5220\u9664<\/strong>\uff1a\u6211\u4eec\u7684\u8bb8\u591a Hive \u8868\u2014\u2014\u5c24\u5176\u662f\u4ece Apache Kafka\u00ae\u65e5\u5fd7\u4e2d\u63d0\u53d6\u7684\u8868\u2014\u2014\u90fd\u5305\u542b\u8bb8\u591a\u5217\uff0c\u5176\u4e2d\u4e00\u4e9b\u8fd8\u662f\u5d4c\u5957\u7684\u3002\u5f53\u6211\u4eec\u67e5\u770b\u8fd9\u4e9b\u5217\u65f6\uff0c\u5f88\u660e\u663e\uff0c\u5176\u4e2d\u4e00\u4e9b\u5217\u6ca1\u6709\u5fc5\u8981\u957f\u671f\u4fdd\u7559\u3002\u6bd4\u5982\u8bf4\u4e3a\u4e86\u8c03\u8bd5\u6bcf\u4e2a Kafka \u6d88\u606f\u7684\u5143\u6570\u636e\uff0c\u4ee5\u53ca\u7531\u4e8e\u5408\u89c4\u6027\u539f\u56e0\u9700\u8981\u5728\u4e00\u6bb5\u65f6\u95f4\u540e\u5220\u9664\u7684\u5404\u79cd\u5b57\u6bb5\u90fd\u53ef\u4ee5\u5220\u6389\u3002\u8fd9\u79cd\u5217\u683c\u5f0f\u8ba9\u6211\u4eec\u5728\u6280\u672f\u4e0a\u53ef\u4ee5\u505a\u5230\u5220\u9664\u6587\u4ef6\u5185\u7684\u4e00\u4e9b\u5217\u65f6\u65e0\u9700\u89e3\u538b\u548c\u91cd\u65b0\u538b\u7f29\u5176\u4ed6\u5217\u3002\u8fd9\u8ba9\u5217\u5220\u9664\u6210\u4e3a\u4e86\u4e00\u79cd\u975e\u5e38\u8282\u7701 CPU \u7684\u64cd\u4f5c\u3002\u6211\u4eec\u5728 Uber \u5b9e\u73b0\u4e86\u8fd9\u6837\u4e00\u4e2a\u7279\u6027\uff0c\u5e76\u5c06\u5b83\u5927\u91cf\u7528\u4e8e\u6211\u4eec\u7684 Hive \u8868\uff0c\u8fd8\u628a\u00a0\u4ee3\u7801\u00a0\u8d21\u732e\u56de\u4e86 Apache Parquet\u3002<\/li>\n<\/ol>\n
        \n
      1. \u884c\u91cd\u6392\u5e8f<\/strong>\uff1a\u884c\u987a\u5e8f\u53ef\u4ee5\u663e\u8457\u5f71\u54cd\u538b\u7f29\u540e Parquet \u6587\u4ef6\u7684\u5927\u5c0f\u3002\u8fd9\u662f\u7531\u4e8e Parquet \u683c\u5f0f\u4e2d\u7684\u8fd0\u884c\u957f\u5ea6\uff08Run-Length\uff09\u7f16\u7801\u7279\u6027\uff0c\u4ee5\u53ca\u538b\u7f29\u7b97\u6cd5\u5229\u7528\u5c40\u90e8\u91cd\u590d\u7684\u80fd\u529b\u9020\u6210\u7684\u3002\u6211\u4eec\u68c0\u67e5\u4e86 Uber \u6700\u5927\u7684\u4e00\u4e9b Hive \u8868\uff0c\u5e76\u5bf9\u6392\u5e8f\u505a\u4e86\u624b\u52a8\u8c03\u6574\uff0c\u5c06\u8868\u5927\u5c0f\u51cf\u5c11\u4e86 50% \u4ee5\u4e0a\u3002\u6211\u4eec\u53d1\u73b0\u7684\u4e00\u4e2a\u5e38\u89c1\u6a21\u5f0f\u662f\u7b80\u5355\u5730\u6309\u7528\u6237 ID \u5bf9\u884c\u6392\u5e8f\uff0c\u7136\u540e\u662f\u6309\u65e5\u5fd7\u8868\u7684\u65f6\u95f4\u6233\u6392\u5e8f\u3002\u5927\u591a\u6570\u65e5\u5fd7\u8868\u90fd\u6709\u7528\u6237 ID \u548c\u65f6\u95f4\u6233\u5217\u3002\u8fd9\u8ba9\u6211\u4eec\u80fd\u591f\u975e\u5e38\u9ad8\u6548\u5730\u538b\u7f29\u4e0e\u7528\u6237 ID \u5173\u8054\u7684\u8bb8\u591a\u975e\u89c4\u8303\u5316\u5217\u3002<\/li>\n<\/ol>\n
          \n
        1. Delta \u7f16\u7801<\/strong>\uff1a\u6211\u4eec\u5f00\u59cb\u6309\u65f6\u95f4\u6233\u5bf9\u884c\u6392\u5e8f\u540e\uff0c\u5f88\u5feb\u5c31\u6ce8\u610f\u5230\u4e86 Delta \u7f16\u7801\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u8fdb\u4e00\u6b65\u51cf\u5c11\u6570\u636e\u5927\u5c0f\u3002\u56e0\u4e3a\u4e0e\u65f6\u95f4\u6233\u503c\u672c\u8eab\u76f8\u6bd4\uff0c\u76f8\u90bb\u65f6\u95f4\u6233\u4e4b\u95f4\u7684\u5dee\u5f02\u975e\u5e38\u5c0f\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u65e5\u5fd7\u5177\u6709\u7a33\u5b9a\u7684\u8282\u594f\uff0c\u5c31\u50cf\u5fc3\u8df3\u4e00\u6837\uff0c\u56e0\u6b64\u8fd9\u79cd\u5dee\u5f02\u662f\u6052\u5b9a\u7684\u3002\u4f46\u662f\uff0c\u5728\u6211\u4eec\u5e7f\u6cdb\u4f7f\u7528 Apache Hive\u3001Presto\u00ae\u548c Apache Spark \u7684\u73af\u5883\u4e2d\uff0c\u5982 StackOverflow\u95ee\u9898\u00a0\u4e2d\u6240\u8ff0\uff0c\u5728 Parquet \u4e2d\u542f\u7528 Delta \u7f16\u7801\u5e76\u975e\u6613\u4e8b\u3002\u6211\u4eec\u8fd8\u5728\u63a2\u7d22\u8fd9\u4e2a\u65b9\u5411\u3002<\/li>\n<\/ol>\n
          HDFS \u7ea0\u5220\u7801<\/section>\n

          \u7ea0\u5220\u7801\uff08Erasure Coding\uff09\u53ef\u4ee5\u663e\u8457\u51cf\u5c11 HDFS \u6587\u4ef6\u7684\u590d\u5236\u56e0\u5b50\u3002\u7531\u4e8e\u8fd9\u79cd\u6280\u672f\u4f1a\u589e\u52a0 IOPS \u8d1f\u8f7d\uff0c\u6240\u4ee5\u5728 Uber\uff0c\u6211\u4eec\u4e3b\u8981\u7814\u7a76 3+2 \u548c 6+3 \u6a21\u5f0f\uff0c\u5bf9\u5e94\u7684\u590d\u5236\u56e0\u5b50\u5206\u522b\u4e3a 1.67 \u500d\u548c 1.5 \u500d\u3002\u9274\u4e8e\u9ed8\u8ba4\u7684 HDFS \u590d\u5236\u56e0\u5b50\u662f 3 \u500d\uff0c\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u53ef\u4ee5\u5c06 HDD \u7a7a\u95f4\u9700\u6c42\u51cf\u5c11\u8fd1\u4e00\u534a\uff01<\/p>\n

          \u4e0d\u8fc7\uff0c\u7ea0\u5220\u7801\u8fd8\u6709\u591a\u79cd\u9009\u62e9\uff1a<\/p>\n

            \n
          1. Apache Hadoop3.0 HDFS \u7ea0\u5220\u7801<\/strong>\uff1a\u8fd9\u662f\u5728 Apache Hadoop 3.0 \u4e2d\u5b9e\u73b0\u7684\u5b98\u65b9\u7ea0\u5220\u7801\u3002\u8fd9\u4e2a\u5b9e\u73b0\u7684\u597d\u5904\u662f\u5b83\u540c\u65f6\u9002\u7528\u4e8e\u5927\u6587\u4ef6\u548c\u5c0f\u6587\u4ef6\u3002\u5176\u7f3a\u70b9\u662f IO \u6548\u7387\u4e0d\u9ad8\uff0c\u56e0\u4e3a\u7ea0\u5220\u7801\u7684\u5757\u975e\u5e38\u788e\u7247\u5316\u3002<\/li>\n<\/ol>\n
              \n
            1. \u5ba2\u6237\u7aef\u7ea0\u5220\u7801<\/strong>\uff1a\u8fd9\u79cd\u7f16\u7801\u9996\u5148\u7531 Facebook \u5728 HDFS-RAID \u9879\u76ee\u4e2d\u5b9e\u73b0\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u597d\u5904\u662f\u5b83\u7684 IO \u6548\u7387\u975e\u5e38\u9ad8\u3002\u5f53\u6240\u6709\u5757\u90fd\u53ef\u7528\u65f6\uff0c\u8bfb\u53d6 IO \u6548\u7387\u4e0e\u5757\u8fdb\u884c 3 \u8def\u590d\u5236\u7684\u57fa\u7ebf\u76f8\u5f53\u3002\u7f3a\u70b9\u662f\u5b83\u4e0d\u9002\u7528\u4e8e\u5c0f\u6587\u4ef6\uff0c\u56e0\u4e3a\u6bcf\u4e2a\u5757\u90fd\u662f\u7ea0\u5220\u7801\u8ba1\u7b97\u7684\u4e00\u4e2a\u5355\u4f4d\u3002<\/li>\n<\/ol>\n

              \u5728\u54a8\u8be2\u4e86\u884c\u4e1a\u4e13\u5bb6\u540e\uff0c\u6211\u4eec\u51b3\u5b9a\u91c7\u7528 Apache Hadoop 3.0 HDFS \u7ea0\u5220\u7801\uff0c\u56e0\u4e3a\u8fd9\u662f\u793e\u533a\u7684\u65b9\u5411\u3002\u6211\u4eec\u4ecd\u5904\u4e8e Apache Hadoop 3.0 HDFS \u7ea0\u5220\u7801\u7684\u8bc4\u4f30\u9636\u6bb5\uff0c\u4f46\u6211\u4eec\u76f8\u4fe1\u8fd9\u79cd\u6280\u672f\u5c06\u663e\u8457\u964d\u4f4e\u6211\u4eec\u7684 HDFS \u6210\u672c\u3002<\/p>\n

              YARN \u8c03\u5ea6\u7b56\u7565\u6539\u8fdb<\/section>\n

              \u5728 Uber\uff0c\u6211\u4eec\u4f7f\u7528 Apache YARN \u6765\u8fd0\u884c\u5927\u90e8\u5206\u7684\u5927\u6570\u636e\u8ba1\u7b97\u8d1f\u8f7d\uff08Presto \u9664\u5916\uff0c\u5b83\u76f4\u63a5\u8fd0\u884c\u5728\u4e13\u7528\u670d\u52a1\u5668\u4e0a\uff09\u3002\u5c31\u50cf\u5176\u4ed6\u5f88\u591a\u516c\u53f8\u4e00\u6837\uff0c\u6211\u4eec\u4e00\u5f00\u59cb\u7528\u7684\u662f YARN \u4e2d\u7684\u6807\u51c6\u5bb9\u91cf\u8c03\u5ea6\u5668\uff08Capacity Scheduler\uff09\u3002\u5bb9\u91cf\u8c03\u5ea6\u4f7f\u6211\u4eec\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u961f\u5217\u914d\u7f6e\u5177\u6709 MIN \u548c MAX \u8bbe\u7f6e\u7684\u5206\u5c42\u961f\u5217\u7ed3\u6784\u3002\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u4ee5\u7ec4\u7ec7\u4e3a\u7b2c\u4e00\u7ea7\u7684 2 \u7ea7\u961f\u5217\u7ed3\u6784\uff0c\u5141\u8bb8\u7528\u6237\u6839\u636e\u5b50\u56e2\u961f\u3001\u4f18\u5148\u7ea7\u6216\u4f5c\u4e1a\u7c7b\u578b\u521b\u5efa\u7b2c\u4e8c\u7ea7\u961f\u5217\u3002<\/p>\n

              \u867d\u7136\u5bb9\u91cf\u8c03\u5ea6\u5668\u4e3a\u6211\u4eec\u7ba1\u7406 YARN \u961f\u5217\u5bb9\u91cf\u7684\u5de5\u4f5c\u63d0\u4f9b\u4e86\u4e00\u4e2a\u826f\u597d\u7684\u5f00\u7aef\uff0c\u4f46\u6211\u4eec\u5f88\u5feb\u5c31\u9047\u5230\u4e86\u7ba1\u7406 YARN \u96c6\u7fa4\u5bb9\u91cf\u7684\u56f0\u5883\uff1a<\/p>\n

                \n
              1. \u9ad8\u5229\u7528\u7387<\/strong>\uff1a\u6211\u4eec\u5e0c\u671b YARN \u96c6\u7fa4\u7684\u5e73\u5747\u5229\u7528\u7387\uff08\u4ee5\u5206\u914d\u7684 CPU \u548c MemGB\/ \u96c6\u7fa4\u7684\u603b CPU \u548c MemGB \u5bb9\u91cf\u8861\u91cf\uff09\u5c3d\u53ef\u80fd\u9ad8\uff1b<\/li>\n
              2. \u6ee1\u8db3\u7528\u6237\u671f\u671b<\/strong>\uff1a\u6211\u4eec\u5e0c\u671b\u7ed9\u7528\u6237\u63d0\u4f9b\u660e\u786e\u7684\u9884\u671f\uff0c\u544a\u8bc9\u4ed6\u4eec\u53ef\u4ee5\u4ece\u96c6\u7fa4\u4e2d\u83b7\u5f97\u591a\u5c11\u8d44\u6e90<\/li>\n<\/ol>\n

                \u6211\u4eec\u7684\u8bb8\u591a\u7528\u6237\u5bf9 YARN \u96c6\u7fa4\u6709\u5c16\u9510\u4f46\u53ef\u9884\u6d4b\u7684\u8d44\u6e90\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u4e00\u4e2a\u961f\u5217\u53ef\u80fd\u6709\u4e00\u7ec4\u65e5\u5e38\u4f5c\u4e1a\uff0c\u6bcf\u4e2a\u4f5c\u4e1a\u5728\u4e00\u5929\u4e2d\u7684\u7279\u5b9a\u65f6\u95f4\u5f00\u59cb\uff0c\u5e76\u5728\u76f8\u4f3c\u7684\u65f6\u95f4\u6bb5\u5185\u6d88\u8017\u76f8\u4f3c\u6570\u91cf\u7684 CPU\/MemGB\u3002<\/p>\n

                \u5982\u679c\u6211\u4eec\u5c06\u961f\u5217\u7684 MIN \u8bbe\u7f6e\u4e3a\u767d\u5929\u7684\u5cf0\u503c\u4f7f\u7528\u91cf\uff0c\u90a3\u4e48\u96c6\u7fa4\u5229\u7528\u7387\u5c06\u975e\u5e38\u4f4e\uff0c\u56e0\u4e3a\u961f\u5217\u7684\u5e73\u5747\u8d44\u6e90\u9700\u6c42\u8fdc\u4f4e\u4e8e MIN\u3002<\/p>\n

                \u5982\u679c\u6211\u4eec\u5c06\u961f\u5217\u7684 MAX \u8bbe\u7f6e\u4e3a\u767d\u5929\u7684\u9ad8\u5cf0\u7528\u91cf\uff0c\u90a3\u4e48\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u961f\u5217\u53ef\u80fd\u4f1a\u88ab\u6ee5\u7528\uff0c\u8ba9\u8d44\u6e90\u6301\u7eed\u63a5\u8fd1 MAX\uff0c\u8fdb\u800c\u53ef\u80fd\u5f71\u54cd\u5176\u4ed6\u961f\u5217\u4e2d\u5176\u4ed6\u4eba\u7684\u6b63\u5e38\u4f5c\u4e1a.<\/p>\n

                \u6211\u4eec\u5982\u4f55\u6355\u6349\u7528\u6237\u7684\u8d44\u6e90\u9700\u6c42\u5e76\u6b63\u786e\u8bbe\u5b9a\u4ed6\u4eec\u7684\u9884\u671f\u5462\uff1f\u6211\u4eec\u63d0\u51fa\u4e86\u4ee5\u4e0b\u60f3\u6cd5\uff0c\u79f0\u4e3a\u52a8\u6001\u5cf0\u503c\uff08Dynamic MAX\uff09\u3002<\/p>\n

                \u52a8\u6001\u5cf0\u503c\u7b97\u6cd5\u4f7f\u7528\u4ee5\u4e0b\u8bbe\u7f6e\uff1a<\/p>\n

                  \n
                1. \u5c06\u961f\u5217\u7684 MIN \u8bbe\u7f6e\u4e3a\u961f\u5217\u7684\u5e73\u5747\u4f7f\u7528\u7387<\/li>\n
                2. \u961f\u5217\u7684 MAX \u8bbe\u7f6e\u516c\u5f0f\u5982\u4e0b\uff1a<\/li>\n<\/ol>\n
                  Dynamic_MAX = max(MIN, MIN * 24 \u2013 Average_Usage_In_last_23_hours * 23)\r\n<\/code><\/pre>\n
                  Dynamic_MAX \u5728\u6bcf\u5c0f\u65f6\u5f00\u59cb\u65f6\u8ba1\u7b97\uff0c\u5e76\u5e94\u7528\u4e8e\u8be5\u5c0f\u65f6\u7684\u961f\u5217 MAX\u3002\u8fd9\u91cc\u7684\u52a8\u6001\u5cf0\u503c\u7b97\u6cd5\u80cc\u540e\u7684\u60f3\u6cd5\u662f\uff1a<\/p>\n
                    \n
                  1. \u5982\u679c\u961f\u5217\u5728\u8fc7\u53bb 23 \u5c0f\u65f6\u5185\u6839\u672c\u6ca1\u6709\u4f7f\u7528\uff0c\u6211\u4eec\u5141\u8bb8\u961f\u5217\u5cf0\u503c\u6700\u591a\u8fbe\u5230\u5176 MIN \u7684 24 \u500d\u3002\u8fd9\u901a\u5e38\u8db3\u4ee5\u5904\u7406\u6211\u4eec\u7edd\u5927\u591a\u6570\u7684\u5c16\u5cf0\u8d1f\u8f7d\u3002<\/li>\n<\/ol>\n
                      \n
                    1. \u5982\u679c\u961f\u5217\u5728\u8fc7\u53bb 23 \u5c0f\u65f6\u5185\u5e73\u5747\u4f7f\u7528\u91cf\u5728 MIN \u6c34\u5e73\uff0c\u90a3\u4e48\u6211\u4eec\u53ea\u5141\u8bb8\u961f\u5217\u5728\u4e0b\u4e00\u4e2a\u5c0f\u65f6\u7684\u4f7f\u7528\u91cf\u4e0d\u9ad8\u4e8e MIN\u3002\u6709\u4e86\u8fd9\u4e2a\u89c4\u5219\uff0c\u961f\u5217\u5728 24 \u5c0f\u65f6\u5185\u7684\u5e73\u5747\u4f7f\u7528\u91cf\u4e0d\u4f1a\u8d85\u8fc7 MIN\uff0c\u4ece\u800c\u907f\u514d\u4e86\u4e0a\u9762\u63d0\u5230\u7684\u6ee5\u7528\u60c5\u51b5\u3002<\/li>\n<\/ol>\n
                      \u4e0a\u8ff0\u52a8\u6001\u5cf0\u503c\u7b97\u6cd5\u5f88\u5bb9\u6613\u5411\u7528\u6237\u89e3\u91ca\uff1a\u57fa\u672c\u4e0a\uff0c\u4ed6\u4eec\u7684\u4f7f\u7528\u91cf\u6700\u591a\u53ef\u4ee5\u98d9\u5347\u5230\u4ed6\u4eec\u961f\u5217 MIN \u7684 24 \u500d\uff0c\u4f46\u4e3a\u4e86\u516c\u5e73\u8d77\u89c1\uff0c\u4ed6\u4eec\u5728 24 \u5c0f\u65f6\u5185\u7684\u7d2f\u79ef\u4f7f\u7528\u91cf\u4e0d\u80fd\u8d85\u8fc7 MIN \u7ea7\u522b\u7684\u96c6\u7fa4\u5e73\u5747\u4f7f\u7528\u91cf\u3002<\/p>\n
                      \u5b9e\u9645\u4e0a\uff0c\u6211\u4eec\u5c06 MIN \u8bbe\u7f6e\u4e3a\u961f\u5217\u5e73\u5747\u4f7f\u7528\u91cf\u7684 125%\uff0c\u4ee5\u5e94\u5bf9\u6700\u9ad8 25% \u7684\u6bcf\u65e5\u4f7f\u7528\u5dee\u5f02\u3002\u8fd9\u53cd\u8fc7\u6765\u610f\u5473\u7740\u6211\u4eec YARN \u96c6\u7fa4\u7684\u5e73\u5747\u5229\u7528\u7387\uff08\u4ee5 CPU\/MemGB \u5206\u914d\u8861\u91cf\uff09\u5c06\u5728 80% \u5de6\u53f3\uff0c\u8fd9\u5bf9\u4e8e\u6210\u672c\u6548\u7387\u6307\u6807\u6765\u8bf4\u662f\u4e00\u4e2a\u76f8\u5f53\u4e0d\u9519\u7684\u5229\u7528\u7387\u6c34\u5e73\u3002<\/p>\n
                      \u907f\u5f00\u9ad8\u5cf0\u65f6\u95f4\u6bb5<\/section>\n
                      YARN \u8d44\u6e90\u5229\u7528\u7387\u7684\u53e6\u4e00\u4e2a\u95ee\u9898\u662f\u6574\u4e2a\u96c6\u7fa4\u7ea7\u522b\u4ecd\u7136\u5b58\u5728\u4e00\u79cd\u65e5\u5e38\u6a21\u5f0f\u3002\u8bb8\u591a\u56e2\u961f\u51b3\u5b9a\u5728 00:00-01:00 UTC \u4e4b\u95f4\u8fd0\u884c\u4ed6\u4eec\u7684 ETL \u7ba1\u9053\uff0c\u56e0\u4e3a\u636e\u8bf4\u90a3\u662f\u6700\u540e\u4e00\u5929\u7684\u65e5\u5fd7\u51c6\u5907\u5c31\u7eea\u7684\u65f6\u5019\u3002\u8fd9\u4e9b\u7ba1\u9053\u53ef\u80fd\u4f1a\u8fd0\u884c 1-2 \u4e2a\u5c0f\u65f6\u3002\u8fd9\u8ba9 YARN \u96c6\u7fa4\u5728\u90a3\u4e9b\u9ad8\u5cf0\u65f6\u6bb5\u975e\u5e38\u5fd9\u788c\u3002<\/p>\n
                      \u6211\u4eec\u8ba1\u5212\u5b9e\u73b0\u4e00\u5957\u57fa\u4e8e\u65f6\u95f4\u7684\u8d39\u7387\u7b97\u6cd5\uff0c\u800c\u4e0d\u662f\u5411 YARN \u96c6\u7fa4\u6dfb\u52a0\u66f4\u591a\u673a\u5668\uff0c\u56e0\u4e3a\u540e\u8005\u4f1a\u964d\u4f4e\u5e73\u5747\u5229\u7528\u7387\u5e76\u635f\u5bb3\u6210\u672c\u6548\u7387\u3002\u57fa\u672c\u4e0a\uff0c\u5f53\u6211\u4eec\u8ba1\u7b97\u8fc7\u53bb 23 \u5c0f\u65f6\u7684\u5e73\u5747\u4f7f\u7528\u91cf\u65f6\uff0c\u6211\u4eec\u4f1a\u5e94\u7528\u4e00\u4e2a\u6839\u636e\u4e00\u5929\u4e2d\u65f6\u70b9\u800c\u53d8\u5316\u7684\u6bd4\u4f8b\u56e0\u5b50\u3002\u4f8b\u5982\uff0c0-4 UTC \u9ad8\u5cf0\u65f6\u6bb5\u7684\u6bd4\u4f8b\u56e0\u5b50\u4e3a 2 \u500d\uff0c\u5176\u4f59\u65f6\u95f4\u4e3a 0.8 \u500d\u3002<\/p>\n
                      \u8054\u90a6\u96c6\u7fa4<\/section>\n
                      \u968f\u7740\u6211\u4eec\u7684 YARN \u548c HDFS \u96c6\u7fa4\u4e0d\u65ad\u81a8\u80c0\uff0c\u6211\u4eec\u5f00\u59cb\u6ce8\u610f\u5230\u4e86\u4e00\u4e2a\u6027\u80fd\u74f6\u9888\u3002\u7531\u4e8e\u96c6\u7fa4\u5927\u5c0f\u4e0d\u65ad\u589e\u52a0\uff0cHDFS NameNode \u548c YARN ResourceManager \u90fd\u5f00\u59cb\u53d8\u6162\u3002\u867d\u7136\u8fd9\u4e3b\u8981\u662f\u4e00\u4e2a\u53ef\u6269\u5c55\u6027\u6311\u6218\uff0c\u4f46\u5b83\u4e5f\u6781\u5927\u5f71\u54cd\u4e86\u6211\u4eec\u7684\u6210\u672c\u6548\u7387\u76ee\u6807\u3002<\/p>\n
                      \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6446\u5728\u6211\u4eec\u9762\u524d\u6709\u4e24\u4e2a\u7b56\u7565\u9009\u9879\uff1a<\/p>\n
                        \n
                      1. \u7ee7\u7eed\u63d0\u5347\u5355\u8282\u70b9\u6027\u80fd<\/strong>\uff1a\u6bd4\u5982\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u914d\u5907\u4e86\u66f4\u591a CPU \u865a\u62df\u6838\u5fc3\u548c\u5185\u5b58\u7684\u673a\u5668\u3002\u6211\u4eec\u8fd8\u53ef\u4ee5\u8fd0\u884c\u6808\u8ddf\u8e2a\u548c\u706b\u7130\u56fe\u6765\u627e\u51fa\u6027\u80fd\u74f6\u9888\u5e76\u4e00\u4e00\u4f18\u5316\u3002<\/li>\n
                      2. \u96c6\u7fa4\u7684\u96c6\u7fa4\uff08\u8054\u90a6\uff09<\/strong>\uff1a\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u7531\u8bb8\u591a\u96c6\u7fa4\u7ec4\u6210\u7684\u865a\u62df\u96c6\u7fa4\u3002\u6bcf\u4e2a\u5e95\u5c42\u96c6\u7fa4\u90fd\u4f1a\u6709\u4e00\u4e2a\u53ef\u4ee5\u53d1\u6325 HDFS \u548c YARN \u6700\u4f18\u6027\u80fd\u7684\u5927\u5c0f\u8bbe\u7f6e\u3002\u4e0a\u9762\u7684\u865a\u62df\u96c6\u7fa4\u5c06\u5904\u7406\u6240\u6709\u8d1f\u8f7d\u8def\u7531\u903b\u8f91\u3002<\/li>\n<\/ol>\n
                        \u51fa\u4e8e\u4ee5\u4e0b\u539f\u56e0\uff0c\u6211\u4eec\u9009\u62e9\u4e86\u7b2c\u4e8c\u4e2a\u9009\u9879\uff1a<\/p>\n
                          \n
                        1. \u4e16\u754c\u4e0a\u5927\u591a\u6570 HDFS \u548c YARN \u96c6\u7fa4\u90fd\u6bd4\u6211\u4eec\u5728 Uber \u9700\u6c42\u7684\u89c4\u6a21\u8981\u5c0f\u3002\u5982\u679c\u6211\u4eec\u8fd0\u884c\u8d85\u5927\u96c6\u7fa4\uff0c\u5f88\u53ef\u80fd\u4f1a\u9047\u5230\u5f88\u591a\u5728\u5c0f\u96c6\u7fa4\u4e2d\u4e0d\u4f1a\u51fa\u73b0\u7684\u672a\u77e5\u9519\u8bef\u3002<\/li>\n<\/ol>\n
                            \n
                          1. \u4e3a\u4e86\u8ba9 HDFS \u548c YARN \u80fd\u591f\u6269\u5c55\u5230 Uber \u7684\u96c6\u7fa4\u89c4\u6a21\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u66f4\u6539\u6e90\u4ee3\u7801\u4ee5\u5728\u6027\u80fd\u548c\u590d\u6742\u7279\u6027\u4e4b\u95f4\u505a\u51fa\u5404\u79cd\u6743\u8861\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u53d1\u73b0\u5bb9\u91cf\u8c03\u5ea6\u5668\u6709\u4e00\u4e9b\u590d\u6742\u7684\u903b\u8f91\u4f1a\u51cf\u6162\u4efb\u52a1\u5206\u914d\u7684\u901f\u5ea6\u3002\u4f46\u662f\uff0c\u4e3a\u6446\u8131\u8fd9\u4e9b\u903b\u8f91\u800c\u505a\u7684\u4ee3\u7801\u66f4\u6539\u5c06\u65e0\u6cd5\u5408\u5e76\u5230 Apache Hadoop \u4e3b\u5e72\u4e2d\uff0c\u56e0\u4e3a\u5176\u4ed6\u516c\u53f8\u53ef\u80fd\u9700\u8981\u8fd9\u4e9b\u590d\u6742\u7684\u7279\u6027\u3002<\/li>\n<\/ol>\n
                            \u4e3a\u4e86\u80fd\u5728\u4e0d\u5206\u53c9\u7684\u60c5\u51b5\u4e0b\u5229\u7528\u5f00\u6e90 Hadoop \u751f\u6001\u7cfb\u7edf\uff0c\u6211\u4eec\u51b3\u5b9a\u6784\u5efa\u96c6\u7fa4\u7684\u96c6\u7fa4\u8fd9\u79cd\u8bbe\u7f6e\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u6211\u4eec\u4f7f\u7528\u4e86\u57fa\u4e8e\u8def\u7531\u7684 HDFS \u8054\u90a6\u548c YARN \u8054\u90a6\u3002\u5b83\u4eec\u90fd\u6765\u81ea\u5f00\u6e90 Apache Hadoop\u3002\u622a\u81f3\u76ee\u524d\uff0c\u6211\u4eec\u5df2\u7ecf\u5efa\u7acb\u4e86\u6570\u5341\u4e2a HDFS \u96c6\u7fa4\u548c\u5c11\u6570 YARN \u96c6\u7fa4\u3002\u57fa\u4e8e HDFS \u8def\u7531\u7684\u8054\u90a6\u4e00\u76f4\u662f\u6211\u4eec\u5927\u6570\u636e\u53ef\u6269\u5c55\u6027\u5de5\u4f5c\u7684\u57fa\u77f3\uff0c\u5b83\u4e5f\u63d0\u9ad8\u4e86\u6210\u672c\u6548\u7387\u3002<\/p>\n
                            \u901a\u7528\u8d1f\u8f7d\u5747\u8861<\/section>\n
                            \u524d\u6587\u4ecb\u7ecd\u4e86 P99 \u548c\u5e73\u5747\u5229\u7528\u7387\u6311\u6218\u3002\u7b2c 3 \u90e8\u5206\u4e2d\u5173\u4e8e\u5ec9\u4ef7\u548c\u5927\u786c\u76d8\u7684\u89e3\u51b3\u65b9\u6848\u5219\u4f1a\u6d89\u53ca IOPS P99 \u7684\u91cd\u8981\u6027\u3002<\/p>\n
                            \u5728\u672c\u8282\u4e2d\uff0c\u6211\u4eec\u5c06\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u8ba8\u8bba\u9002\u7528\u4e8e HDFS \u548c YARN \u7684\u901a\u7528\u8d1f\u8f7d\u5747\u8861\u65b9\u6848\uff1a<\/p>\n
                              \n
                            1. HDFS DataNode \u78c1\u76d8\u7a7a\u95f4\u5229\u7528\u7387\u5747\u8861<\/strong>\uff1a\u6bcf\u4e2a DataNode \u53ef\u80fd\u90fd\u6709\u4e0d\u540c\u7684\u78c1\u76d8\u7a7a\u95f4\u5229\u7528\u7387\u6bd4\u7387\u3002\u5728\u6bcf\u4e2a DataNode \u4e2d\uff0c\u6bcf\u4e2a HDD \u90fd\u53ef\u80fd\u6709\u4e0d\u540c\u7684\u78c1\u76d8\u7a7a\u95f4\u5229\u7528\u7387\u3002\u6240\u6709\u8fd9\u4e9b\u90fd\u9700\u8981\u505a\u5747\u8861\uff0c\u4ee5\u5b9e\u73b0\u8f83\u9ad8\u7684\u78c1\u76d8\u7a7a\u95f4\u5e73\u5747\u5229\u7528\u7387\u3002<\/li>\n<\/ol>\n
                                \n
                              1. YARN NodeManager \u5229\u7528\u7387\u5747\u8861<\/strong>\uff1a\u5728\u4efb\u4f55\u65f6\u95f4\u70b9\uff0cYARN \u4e2d\u7684\u6bcf\u53f0\u673a\u5668\u90fd\u53ef\u4ee5\u6709\u4e0d\u540c\u7ea7\u522b\u7684 CPU \u548c MemGB \u5206\u914d\u548c\u5229\u7528\u7387\u3002\u540c\u6837\uff0c\u6211\u4eec\u9700\u8981\u5747\u8861\u5206\u914d\u548c\u5229\u7528\u7387\uff0c\u4ee5\u5b9e\u73b0\u8f83\u9ad8\u7684\u5e73\u5747\u5229\u7528\u7387\u3002<\/li>\n<\/ol>\n
                                \u4e0a\u8ff0\u89e3\u51b3\u65b9\u6848\u4e4b\u95f4\u6709\u5f88\u591a\u76f8\u4f3c\u6027\uff0c\u542f\u53d1\u6211\u4eec\u63d0\u51fa\u4e86\u901a\u7528\u8d1f\u8f7d\u5747\u8861\u601d\u60f3\uff0c\u5b83\u9002\u7528\u4e8e\u6211\u4eec\u5927\u6570\u636e\u5e73\u53f0\u5185\u5916\u7684\u66f4\u591a\u7528\u4f8b\uff0c\u4f8b\u5982\u5fae\u670d\u52a1\u8d1f\u8f7d\u5747\u8861\u548c\u4e3b\u5b58\u50a8\u8d1f\u8f7d\u5747\u8861\u3002\u6240\u6709\u8fd9\u4e9b\u7528\u4f8b\u4e4b\u95f4\u7684\u5171\u540c\u8054\u7cfb\u662f\uff0c\u5b83\u4eec\u7684\u76ee\u6807\u90fd\u662f\u7f29\u5c0f P99 \u4e0e\u5e73\u5747\u503c\u4e4b\u95f4\u7684\u5dee\u8ddd\u3002<\/p>\n
                                \u67e5\u8be2\u5f15\u64ce<\/section>\n
                                \u6211\u4eec\u5728 Uber \u7684\u5927\u6570\u636e\u751f\u6001\u7cfb\u7edf\u4e2d\u4f7f\u7528\u4e86\u51e0\u4e2a\u67e5\u8be2\u5f15\u64ce\uff1aHive-on-Spark\u3001Spark \u548c Presto\u3002\u8fd9\u4e9b\u67e5\u8be2\u5f15\u64ce\u4e0e\u6587\u4ef6\u683c\u5f0f\uff08Parquet \u548c ORC\uff09\u76f8\u7ed3\u5408\uff0c\u4e3a\u6211\u4eec\u7684\u6210\u672c\u6548\u7387\u5de5\u4f5c\u521b\u5efa\u4e86\u4e00\u4e2a\u6709\u8da3\u7684\u6743\u8861\u77e9\u9635\u3002\u6211\u4eec\u4f7f\u7528\u7684\u5176\u4ed6\u9009\u9879\u8fd8\u5305\u62ec SparkSQL \u548c Hive-on-Tez \u7b49\uff0c\u5b83\u4eec\u8ba9\u6211\u4eec\u7684\u6743\u8861\u51b3\u7b56\u53d8\u5f97\u66f4\u52a0\u590d\u6742\u4e86\u3002<\/p>\n
                                \u4ee5\u4e0b\u662f\u6211\u4eec\u5728\u63d0\u9ad8\u67e5\u8be2\u5f15\u64ce\u6210\u672c\u6548\u7387\u65b9\u9762\u6240\u505a\u7684\u4e3b\u8981\u5de5\u4f5c\uff1a<\/p>\n
                                  \n
                                1. \u4e13\u6ce8\u4e8e Parquet \u6587\u4ef6\u683c\u5f0f<\/strong>\uff1aParquet \u548c ORC \u6587\u4ef6\u683c\u5f0f\u5171\u4eab\u4e00\u4e9b\u5171\u540c\u7684\u8bbe\u8ba1\u539f\u5219\uff0c\u5982\u884c\u7ec4\u3001\u5217\u5b58\u50a8\u3001\u5757\u7ea7\u548c\u6587\u4ef6\u7ea7\u7edf\u8ba1\u3002\u4f46\u5b83\u4eec\u7684\u5b9e\u73b0\u662f\u5b8c\u5168\u72ec\u7acb\u7684\uff0c\u5e76\u4e14\u4e0e\u6211\u4eec\u5728 Uber \u4f7f\u7528\u7684\u5176\u4ed6\u4e13\u6709\u7cfb\u7edf\u5177\u6709\u4e0d\u540c\u7684\u517c\u5bb9\u6027\u7ea7\u522b\u3002\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u6211\u4eec\u5728 Spark \u4e2d\u770b\u5230\u4e86\u66f4\u597d\u7684 Parquet \u652f\u6301\uff0c\u5728 Presto \u4e2d\u770b\u5230\u4e86\u66f4\u597d\u7684 ORC \u652f\u6301\u3002\u9274\u4e8e\u5bf9\u6587\u4ef6\u683c\u5f0f\u65b0\u7279\u6027\u7684\u9700\u6c42\u4e0d\u65ad\u589e\u957f\uff0c\u6211\u4eec\u5fc5\u987b\u51b3\u5b9a\u4e13\u6ce8\u5728\u4e00\u79cd\u4e3b\u8981\u7684\u6587\u4ef6\u683c\u5f0f\u4e0a\uff0c\u4e8e\u662f\u6211\u4eec\u6700\u540e\u9009\u62e9\u4e86 Parquet\u3002\u5355\u4e00\u7684\u4e3b\u8981\u6587\u4ef6\u683c\u5f0f\u4f7f\u6211\u4eec\u80fd\u591f\u5c06\u7cbe\u529b\u96c6\u4e2d\u5728\u4e00\u4e2a\u5355\u4e00\u7684\u4ee3\u7801\u5e93\u4e2d\uff0c\u5e76\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u79ef\u7d2f\u76f8\u5e94\u7684\u4e13\u4e1a\u77e5\u8bc6\u3002<\/li>\n<\/ol>\n
                                    \n
                                  1. \u5d4c\u5957\u5217\u4fee\u526a\uff08Nested Column Pruning\uff09<\/strong>\uff1aUber \u7684\u5927\u6570\u636e\u8868\u5177\u6709\u5d4c\u5957\u7a0b\u5ea6\u975e\u5e38\u9ad8\u7684\u6570\u636e\u3002\u8fd9\u90e8\u5206\u662f\u56e0\u4e3a\u6211\u4eec\u7684\u8bb8\u591a\u4e0a\u6e38\u6570\u636e\u96c6\u90fd\u4ee5 JSON \u683c\u5f0f\u5b58\u50a8\uff08\u8bf7\u53c2\u9605\u00a0\u8bbe\u8ba1\u65e0Schema\uff09\uff0c\u5e76\u4e14\u6211\u4eec\u5bf9\u5b83\u4eec\u5f3a\u5236\u5b9e\u65bd\u4e86 Avro schema\u3002\u4e8e\u662f\uff0c\u5bf9\u5d4c\u5957\u5217\u4fee\u526a\u7684\u652f\u6301\u6210\u4e3a\u4e86 Uber \u67e5\u8be2\u5f15\u64ce\u7684\u4e00\u4e2a\u5173\u952e\u7279\u6027\uff0c\u5426\u5219\u6df1\u5ea6\u5d4c\u5957\u7684\u6570\u636e\u5c06\u9700\u8981\u4ece Parquet \u6587\u4ef6\u4e2d\u5b8c\u5168\u8bfb\u51fa\u624d\u884c\u2014\u2014\u5373\u4f7f\u6211\u4eec\u53ea\u9700\u8981\u5d4c\u5957\u7ed3\u6784\u4e2d\u7684\u5355\u4e2a\u5b57\u6bb5. \u6211\u4eec\u4e3a Spark \u548c Presto \u6dfb\u52a0\u4e86\u5d4c\u5957\u5217\u4fee\u526a\u652f\u6301\u3002\u8fd9\u4e9b\u6539\u8fdb\u663e\u8457\u63d0\u9ad8\u4e86\u6211\u4eec\u7684\u6574\u4f53\u67e5\u8be2\u6027\u80fd\uff0c\u6211\u4eec\u8fd8\u5c06\u5b83\u4eec\u56de\u9988\u7ed9\u4e86\u5f00\u6e90\u793e\u533a\u3002<\/li>\n<\/ol>\n
                                      \n
                                    1. \u5e38\u89c1\u67e5\u8be2\u6a21\u5f0f\u4f18\u5316<\/strong>\uff1a\u5728\u6211\u4eec\u7684\u8d1f\u8f7d\u4e2d\u770b\u5230\u63a5\u8fd1\u4e00\u5343\u884c\u7684 SQL \u67e5\u8be2\u7684\u60c5\u51b5\u5e76\u4e0d\u5c11\u89c1\u3002\u867d\u7136\u6211\u4eec\u4f7f\u7528\u7684\u67e5\u8be2\u5f15\u64ce\u90fd\u6709\u4e00\u4e2a\u67e5\u8be2\u4f18\u5316\u5668\uff0c\u4f46\u5b83\u4eec\u5e76\u6ca1\u6709\u9488\u5bf9 Uber \u5e38\u89c1\u7684\u6a21\u5f0f\u6709\u4e13\u95e8\u7684\u4f18\u5316\u3002\u5176\u4e2d\u4e00\u4e2a\u4f8b\u5b50\u662f\u4e00\u4e9b SQL \u6784\u9020\uff0c\u5982\u201cRANK() OVER PARTITION\u201d\u548c\u201cWHERE rank = 1\u201d\uff0c\u5176\u76ee\u7684\u662f\u63d0\u53d6\u53e6\u4e00\u5217\u503c\u6700\u5927\u7684\u884c\u4e2d\u4e00\u5217\u7684\u503c\uff0c\u4e5f\u5c31\u662f\u6570\u5b66\u672f\u8bed\u4e2d\u7684\u201cARGMAX\u201d\u3002\u5f53\u67e5\u8be2\u88ab\u91cd\u5199\u4e3a\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u201cMAX_BY\u201d\u65f6\uff0c\u50cf Presto \u8fd9\u6837\u7684\u5f15\u64ce\u53ef\u4ee5\u8fd0\u884c\u5f97\u66f4\u5feb\u3002<\/li>\n<\/ol>\n
                                      \u6839\u636e\u6211\u4eec\u7684\u7ecf\u9a8c\uff0c\u5f88\u96be\u9884\u6d4b\u54ea\u4e2a\u5f15\u64ce\u6700\u9002\u5408\u54ea\u79cd SQL \u67e5\u8be2\u3002Hive-on-Spark \u901a\u5e38\u5bf9\u4e8e\u5927\u91cf\u968f\u673a\u6570\u636e\u6709\u5f88\u9ad8\u7684\u53ef\u6269\u5c55\u6027\u3002\u53cd\u8fc7\u6765\uff0c\u5bf9\u4e8e\u6d89\u53ca\u5c11\u91cf\u6570\u636e\u7684\u67e5\u8be2\uff0cPresto \u5f80\u5f80\u975e\u5e38\u5feb\u3002\u6211\u4eec\u6b63\u5728\u79ef\u6781\u5173\u6ce8\u5f00\u6e90\u5927\u6570\u636e\u67e5\u8be2\u5f15\u64ce\u9886\u57df\u7684\u6539\u8fdb\uff0c\u5e76\u5c06\u7ee7\u7eed\u5229\u7528\u5b83\u4eec\u4f18\u5316\u6211\u4eec\u7684\u8d1f\u8f7d\u4ee5\u63d0\u5347\u6210\u672c\u6548\u7387\u3002<\/p>\n
                                      Apache Hudi<\/section>\n
                                      \u6211\u4eec\u5728\u5927\u6570\u636e\u5e73\u53f0\u4e2d\u9047\u5230\u7684\u6700\u660e\u663e\u7684\u6210\u672c\u6548\u76ca\u63d0\u5347\u673a\u4f1a\u4e4b\u4e00\u662f\u9ad8\u6548\u7684\u589e\u91cf\u5904\u7406\u3002\u6211\u4eec\u7684\u8bb8\u591a\u4e8b\u5b9e\u6570\u636e\u96c6\u53ef\u80fd\u4f1a\u5ef6\u8fdf\u5230\u8fbe\u6216\u88ab\u66f4\u6539\u3002\u4f8b\u5982\uff0c\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\uff0c\u4e58\u5ba2\u76f4\u5230\u4ed6\u6216\u5979\u51c6\u5907\u8981\u6c42\u4e0b\u4e00\u6b21\u884c\u7a0b\u65f6\u624d\u4f1a\u5bf9\u4e0a\u6b21\u884c\u7a0b\u7684\u53f8\u673a\u6253\u5206\u3002\u4fe1\u7528\u5361\u7684\u9000\u6b3e\u6709\u65f6\u53ef\u80fd\u9700\u8981\u4e00\u4e2a\u6708\u7684\u65f6\u95f4\u6765\u5904\u7406\u3002<\/p>\n
                                      \u5982\u679c\u6ca1\u6709\u9ad8\u6548\u7684\u589e\u91cf\u5904\u7406\u6846\u67b6\uff0c\u6211\u4eec\u7684\u5927\u6570\u636e\u7528\u6237\u5fc5\u987b\u6bcf\u5929\u626b\u63cf\u8fc7\u53bb\u8bb8\u591a\u5929\u7684\u65e7\u6570\u636e\uff0c\u624d\u80fd\u8ba9\u4ed6\u4eec\u7684\u67e5\u8be2\u7ed3\u679c\u4fdd\u6301\u65b0\u9c9c\u5ea6\u3002\u4e00\u79cd\u66f4\u6709\u6548\u7684\u65b9\u6cd5\u662f\u6bcf\u5929\u53ea\u5904\u7406\u589e\u91cf\u66f4\u6539\uff0c\u8fd9\u5c31\u662f Hudi \u9879\u76ee\u7684\u610f\u4e49\u6240\u5728\u3002<\/p>\n
                                      \u6211\u4eec\u5728 2016 \u5e74\u542f\u52a8\u4e86 Hudi \u9879\u76ee\uff0c\u5e76\u4e8e 2019 \u5e74\u5c06\u5176\u63d0\u4ea4\u7ed9\u4e86 Apache Incubator Project\u3002Apache Hudi\u73b0\u5728\u662f\u4e00\u4e2a\u9876\u7ea7\u9879\u76ee\uff0c\u4e14\u6211\u4eec\u5728 HDFS \u4e0a\u7684\u5927\u90e8\u5206\u5927\u6570\u636e\u90fd\u662f Hudi \u683c\u5f0f\u3002\u8fd9\u5927\u5927\u964d\u4f4e\u4e86 Uber \u7684\u8ba1\u7b97\u80fd\u529b\u9700\u6c42\u3002<\/p>\n
                                      \u4e0b\u4e00\u6b65\u8ba1\u5212\u548c\u5f85\u89e3\u51b3\u6311\u6218<\/section>\n
                                      \u5927\u6570\u636e\u4e0e\u5728\u7ebf\u670d\u52a1\u540c\u4e3b\u673a\u6258\u7ba1<\/section>\n
                                      \u867d\u7136\u6211\u4eec\u51b3\u5b9a\u8ba9\u5927\u6570\u636e\u8d1f\u8f7d\u5728\u7ebf\u4e0a\u670d\u52a1\u4e0d\u9700\u8981\u81ea\u5df1\u7684\u4e3b\u673a\u65f6\u501f\u7528\u540e\u8005\u7684\u4e3b\u673a\uff0c\u4f46\u8ba9\u4e24\u4e2a\u8d1f\u8f7d\u5728\u540c\u4e00\u4e3b\u673a\u4e0a\u8fd0\u884c\u4f1a\u5e26\u6765\u8bb8\u591a\u989d\u5916\u7684\u6311\u6218\u3002<\/p>\n
                                      \u5728\u6258\u7ba1\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\u65b9\u9762\u6709\u8bb8\u591a\u7814\u7a76\u8bba\u6587\u3002\u6211\u4eec\u65b9\u6cd5\u7684\u4e3b\u8981\u4e0d\u540c\u70b9\u5728\u4e8e\uff0c\u6211\u4eec\u8ba1\u5212\u4e3a\u5927\u6570\u636e\u8d1f\u8f7d\u63d0\u4f9b\u975e\u5e38\u4f4e\u7684\u4f18\u5148\u7ea7\uff0c\u4ee5\u5c3d\u91cf\u51cf\u5c11\u5176\u5bf9\u5728\u7ebf\u670d\u52a1\u7684\u5f71\u54cd\u3002<\/p>\n
                                      \u878d\u5408\u5728\u7ebf\u548c\u5206\u6790\u5b58\u50a8<\/section>\n
                                      \u6211\u4eec\u7684\u5f88\u591a\u6570\u636e\u96c6\u90fd\u5b58\u50a8\u5728\u7ebf\u4e0a\u5b58\u50a8\u7cfb\u7edf\uff08\u65e0 schema \u5b58\u50a8\u5728\u95ea\u5b58\u4e0a\u7684 MySQL \u6570\u636e\u5e93\u4e2d\uff09\u548c\u5206\u6790\u5b58\u50a8\u7cfb\u7edf\uff08\u5b58\u50a8\u5728\u786c\u76d8\u9a71\u52a8\u5668\u4e0a\u7684 HDFS \u4e2d\u7684 Hive \u8868\uff09\u4e2d\u3002\u6b64\u5916\uff0c\u4e3a\u4e86\u63d0\u4f9b\u5373\u65f6\u67e5\u8be2\u901f\u5ea6\uff0c\u6211\u4eec\u8fd8\u6295\u8d44\u4e86 Pinot \u7b49\u5b58\u50a8\u5f15\u64ce\u3002\u6240\u6709\u8fd9\u4e9b\u5e26\u6765\u4e86\u76f8\u540c\u903b\u8f91\u6570\u636e\u7684\u8bb8\u591a\u526f\u672c\uff0c\u867d\u8bf4\u526f\u672c\u662f\u4ee5\u4e0d\u540c\u7684\u683c\u5f0f\u5b58\u50a8\u7684\u3002<\/p>\n
                                      \u662f\u5426\u6709\u53ef\u80fd\u5b9e\u73b0\u4e00\u4e2a\u53ef\u4ee5\u540c\u65f6\u5904\u7406\u5728\u7ebf\u548c\u5206\u6790\u67e5\u8be2\u7684\u7edf\u4e00\u5b58\u50a8\u7cfb\u7edf\u5462\uff1f\u8fd9\u5c06\u663e\u8457\u964d\u4f4e\u5b58\u50a8\u6210\u672c\u3002<\/p>\n
                                      \u6c34\u7535\u9879\u76ee\uff1a\u5229\u7528\u7ef4\u62a4\u4f5c\u4e1a\u6765\u201c\u5b58\u50a8\u201d\u989d\u5916\u7684\u8ba1\u7b97\u80fd\u529b<\/section>\n
                                      \u96c6\u7fa4\u4e2d\u7684\u8ba1\u7b97\u80fd\u529b\u4e0e\u7535\u529b\u4f9b\u5e94\u5f88\u50cf\u3002\u5b83\u901a\u5e38\u5728\u4f9b\u5e94\u4fa7\u662f\u56fa\u5b9a\u7684\uff0c\u5e76\u4e14\u5728\u9700\u6c42\u6fc0\u589e\u6216\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5\u4e0b\u4f1a\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n
                                      \u62bd\u6c34\u84c4\u80fd\u6c34\u529b\u53d1\u7535 \u53ef\u4ee5\u5c06\u591a\u4f59\u7684\u7535\u529b\u4ee5\u6c34\u7684\u91cd\u529b\u52bf\u80fd\u7684\u5f62\u5f0f\u50a8\u5b58\u8d77\u6765\uff0c\u7136\u540e\u5728\u9700\u6c42\u9ad8\u5cf0\u65f6\u5c06\u5176\u8f6c\u6362\u56de\u7535\u80fd\u3002<\/p>\n
                                      \u6211\u4eec\u53ef\u4ee5\u5c06\u8fd9\u79cd\u601d\u60f3\u5e94\u7528\u5728\u8ba1\u7b97\u80fd\u529b\u4e0a\u5417\uff1f\u7684\u786e\u53ef\u4ee5\uff01\u8fd9\u91cc\u8981\u4ecb\u7ecd\u7684\u4e00\u9879\u5173\u952e\u601d\u60f3\u662f\u7ef4\u62a4\u4f5c\u4e1a\uff0c\u5b83\u4eec\u662f\u53ef\u4ee5\u5728\u7b2c\u4e8c\u5929\u751a\u81f3\u4e00\u5468\u5185\u968f\u65f6\u53d1\u751f\u7684\u540e\u53f0\u4efb\u52a1\u3002\u5178\u578b\u7684\u7ef4\u62a4\u4f5c\u4e1a\u5305\u62ec LSM \u538b\u7f29\u3001\u538b\u7f29\u3001\u4e8c\u7ea7\u7d22\u5f15\u6784\u5efa\u3001\u6570\u636e\u6e05\u7406\u3001\u7ea0\u5220\u7801\u4fee\u590d\u548c\u5feb\u7167\u7ef4\u62a4\u7b49\u3002\u51e0\u4e4e\u6240\u6709\u6ca1\u6709\u4e25\u683c SLA \u7684\u4f4e\u4f18\u5148\u7ea7\u4f5c\u4e1a\u90fd\u53ef\u4ee5\u89c6\u4e3a\u7ef4\u62a4\u4f5c\u4e1a\u3002<\/p>\n
                                      \u5728\u6211\u4eec\u7684\u5927\u591a\u6570\u7cfb\u7edf\u4e2d\u5e76\u6ca1\u6709\u660e\u786e\u62c6\u5206\u7ef4\u62a4\u548c\u524d\u53f0\u5de5\u4f5c\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u7684\u5927\u6570\u636e\u6444\u53d6\u7cfb\u7edf\u5199\u5165 ZSTD \u538b\u7f29\u7684 Parquet \u6587\u4ef6\uff0c\u8fd9\u4f1a\u5360\u7528\u5927\u91cf CPU \u8d44\u6e90\u5e76\u751f\u6210\u975e\u5e38\u7d27\u51d1\u7684\u6587\u4ef6\u3002\u6362\u4e00\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u8ba9\u6444\u53d6\u7cfb\u7edf\u7f16\u5199\u8f7b\u5ea6\u538b\u7f29\u7684 Parquet \u6587\u4ef6\uff0c\u8fd9\u4e9b\u6587\u4ef6\u5360\u7528\u66f4\u591a\u78c1\u76d8\u7a7a\u95f4\u4f46 CPU \u7528\u91cf\u66f4\u5c11\u3002\u7136\u540e\u6211\u4eec\u6709\u4e00\u4e2a\u7ef4\u62a4\u4f5c\u4e1a\uff0c\u5b83\u4f1a\u7a0d\u540e\u8fd0\u884c\u6765\u91cd\u65b0\u538b\u7f29\u6587\u4ef6\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u663e\u8457\u51cf\u5c11\u524d\u53f0 CPU \u7684\u9700\u6c42\u3002<\/p>\n
                                      \u7ef4\u62a4\u4f5c\u4e1a\u53ea\u9700\u975e\u4fdd\u8bc1\u7684\u8ba1\u7b97\u80fd\u529b\u5c31\u80fd\u8fd0\u884c\u3002\u6b63\u5982\u6211\u4eec\u4e4b\u524d\u6240\u63cf\u8ff0\u7684\uff0c\u6211\u4eec\u6709\u8db3\u591f\u7684\u8d44\u6e90\u7528\u4e8e\u6b64\u76ee\u7684\u3002<\/p>\n
                                      \u5927\u6570\u636e\u7528\u91cf\u7684\u5b9a\u4ef7\u673a\u5236<\/section>\n
                                      \u9274\u4e8e\u6211\u4eec\u7528\u7684\u662f\u591a\u79df\u6237\u5927\u6570\u636e\u5e73\u53f0\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u96be\u4ee5\u6ee1\u8db3\u6240\u6709\u5ba2\u6237\u8d44\u6e90\u9700\u6c42\u7684\u60c5\u51b5\u3002\u6211\u4eec\u5982\u4f55\u4f18\u5316\u6709\u9650\u786c\u4ef6\u9884\u7b97\u7684\u603b\u6548\u7528\uff1f\u5e26\u6709\u9ad8\u5cf0\u65f6\u95f4\u4e58\u6570\u7684 Dynamic_MAX \u662f\u6700\u4f73\u9009\u9879\u5417\uff1f<\/p>\n
                                      \u6211\u4eec\u76f8\u4fe1\u5b9e\u9645\u4e0a\u8fd8\u6709\u66f4\u597d\u7684\u89e3\u51b3\u65b9\u6848\u3002\u4f46\u662f\uff0c\u8fd9\u5c06\u9700\u8981\u63d0\u51fa\u66f4\u7cbe\u7ec6\u7684\u5b9a\u4ef7\u673a\u5236\u3002\u6211\u4eec\u60f3\u63a2\u8ba8\u7684\u4f8b\u5b50\u5305\u62ec\uff1a\u6bcf\u4e2a\u56e2\u961f\u53ef\u4ee5\u5728\u6211\u4eec\u7684\u96c6\u7fa4\u4e0a\u82b1\u8d39\u4e00\u79cd\u4ee3\u5e01\uff0c\u6216\u8005\u7528\u6237\u53ef\u4ee5\u7528\u67d0\u79cd\u79ef\u5206\u6765\u63d0\u9ad8\u4ed6\u4eec\u7684\u5de5\u4f5c\u4f18\u5148\u7ea7\uff0c\u7b49\u7b49\u3002<\/p>\n
                                      \u603b \u00a0\u7ed3<\/section>\n
                                      \u5728\u8fd9\u7bc7\u535a\u6587\u4e2d\uff0c\u6211\u4eec\u5206\u4eab\u4e86 Uber \u5728\u63d0\u9ad8\u5927\u6570\u636e\u5e73\u53f0\u6210\u672c\u6548\u7387\u65b9\u9762\u7684\u5de5\u4f5c\u6210\u679c\u548c\u7406\u5ff5\uff0c\u5305\u62ec\u6587\u4ef6\u683c\u5f0f\u6539\u8fdb\u3001HDFS \u7ea0\u5220\u7801\u3001YARN \u8c03\u5ea6\u7b56\u7565\u6539\u8fdb\u3001\u8d1f\u8f7d\u5747\u8861\u3001\u67e5\u8be2\u5f15\u64ce\u548c Apache Hudi \u7b49\u3002\u8fd9\u4e9b\u6539\u8fdb\u663e\u8457\u964d\u4f4e\u4e86\u5e73\u53f0\u6210\u672c\u3002\u6b64\u5916\uff0c\u6211\u4eec\u8fd8\u63a2\u7d22\u4e86\u4e00\u4e9b\u5f00\u653e\u6027\u6311\u6218\uff0c\u4f8b\u5982\u5206\u6790\u548c\u5728\u7ebf\u6258\u7ba1\u4ee5\u53ca\u5b9a\u4ef7\u673a\u5236\u7b49\u3002\u7136\u800c\uff0c\u6b63\u5982\u6211\u4eec\u4e4b\u524d\u6587\u7ae0\u4e2d\u6982\u8ff0\u7684\u6846\u67b6\u6240\u5c55\u793a\u7684\u90a3\u6837\uff0c\u4ec5\u9760\u5e73\u53f0\u6548\u7387\u7684\u63d0\u5347\u5e76\u4e0d\u80fd\u786e\u4fdd\u8f83\u9ad8\u7684\u8fd0\u7ef4\u6548\u7387\u3002\u63a7\u5236\u6570\u636e\u7684\u4f9b\u5e94\u548c\u9700\u6c42\u4e5f\u662f\u540c\u6837\u91cd\u8981\u7684\uff0c\u6211\u4eec\u5c06\u5728\u4e0b\u4e00\u7bc7\u6587\u7ae0\u4e2d\u8ba8\u8bba\u8fd9\u4e2a\u4e3b\u9898\u3002<\/p>\n
                                      \u58f0 \u00a0\u660e<\/section>\n
                                      Apache \u00ae\u3001Apache Hadoop\u00ae\u3001Apache Kafka\u00ae\u3001Apache Hive\u3001Apache ORC\u3001Apache Parquet\u3001Apache Spark\u3001Apache YARN\u3001Hadoop\u3001Kafka\u3001Hive\u3001ORC\u3001Parquet\u3001Spark\u3001YARN \u662f Apache \u8f6f\u4ef6\u57fa\u91d1\u4f1a\u5728\u7f8e\u56fd\u548c \/ \u6216\u5176\u4ed6\u56fd\u5bb6\u7684\u6ce8\u518c\u5546\u6807\u6216\u5546\u6807\u3002\u4f7f\u7528\u8fd9\u4e9b\u6807\u8bb0\u5e76\u4e0d\u6697\u793a\u5f97\u5230\u4e86 Apache \u8f6f\u4ef6\u57fa\u91d1\u4f1a\u7684\u8ba4\u53ef\u3002<\/p>\n
                                      Presto\u00ae\u662f LF Projects,LLC \u5728\u7f8e\u56fd\u548c \/ \u6216\u5176\u4ed6\u56fd\u5bb6 \/ \u5730\u533a\u7684\u6ce8\u518c\u5546\u6807\u3002\u4f7f\u7528\u6b64\u6807\u5fd7\u5e76\u4e0d\u6697\u793a\u5f97\u5230\u4e86 LF Projects,LLC \u7684\u8ba4\u53ef\u3002<\/p>\n
                                      \u4f5c\u8005\u4ecb\u7ecd\uff1a<\/strong><\/p>\n
                                      Zheng Shao \u662f Uber \u7684\u9ad8\u7ea7\u5de5\u7a0b\u5e08\u3002\u4ed6\u9886\u5bfc\u7740\u6574\u4e2a\u57fa\u7840\u8bbe\u65bd\u6210\u672c\u6548\u7387\u6280\u672f\u9879\u76ee\uff0c\u91cd\u70b9\u5173\u6ce8\u5927\u6570\u636e\u6210\u672c\u6548\u7387\u3002\u4ed6\u8fd8\u662f Apache Hadoop PMC \u6210\u5458\u548c\u540d\u8a89 Apache Hive PMC \u6210\u5458\u3002<\/p>\n
                                      Mohammad Islam \u662f Uber \u7684\u9ad8\u7ea7\u5de5\u7a0b\u5e08\u3002\u4ed6\u5171\u540c\u9886\u5bfc\u6570\u636e\u6210\u672c\u6548\u7387\u9879\u76ee\uff0c\u8fd8\u9886\u5bfc\u6570\u636e\u5b89\u5168\u548c\u5408\u89c4\u9879\u76ee\u3002\u4ed6\u8fd8\u662f Apache Oozie \u548c Tez PMC \u7684\u6210\u5458\u3002<\/p>\n
                                      \u539f\u6587\u94fe\u63a5\uff1a<\/strong>https:\/\/eng.uber.com\/cost-efficient-big-data-platform\/<\/p>\n
                                      \n
                                      \u5185\u5bb9\u6765\u6e90\uff1aUber Engineering<\/p>\n
                                      <\/div>\n
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                                      \u4f5c\u8005 | Uber Engineering \u8bd1\u8005 | \u738b\u5f3a \u7b56\u5212 | \u94b0\u83b9 \u968f\u7740 Uber \u4e1a\u52a1\u7684\u6269\u5f20\uff0c\u4e3a\u516c\u53f8 […]<\/p>\n
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