{"id":263498,"date":"2024-05-15T15:08:09","date_gmt":"2024-05-15T07:08:09","guid":{"rendered":""},"modified":"2024-05-15T15:08:20","modified_gmt":"2024-05-15T07:08:20","slug":"spark-sql%e7%94%9f%e6%88%90%e7%9a%84%e4%bb%a3%e7%a0%81%e6%80%8e%e4%b9%88%e8%b0%83%e8%af%95","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/263498.html","title":{"rendered":"Spark SQL\u751f\u6210\u7684\u4ee3\u7801\u600e\u4e48\u8c03\u8bd5"},"content":{"rendered":"

\"Spark<\/p>\n

Spark SQL\u751f\u6210\u7684\u4ee3\u7801\u8c03\u8bd5\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u5173\u952e\u65b9\u6cd5\u6765\u5b9e\u73b0\uff1a\u4f7f\u7528\u65e5\u5fd7\u6253\u5370\u3001\u5229\u7528IDE\u8c03\u8bd5\u5668\u3001Spark UI\u7684SQL\u67e5\u8be2\u53ef\u89c6\u5316\u3001\u4f7f\u7528EXPLAI<\/a>N\u547d\u4ee4\u3001\u67e5\u770b\u7269\u7406\u8ba1\u5212\u548c\u751f\u6210\u7684\u4ee3\u7801<\/strong>\u3002\u5176\u4e2d\uff0c\u5229\u7528IDE\u8c03\u8bd5\u5668<\/strong>\u5c24\u5176\u503c\u5f97\u6df1\u5165\u63a2\u8ba8\u3002\u5b83\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u5728Spark SQL\u751f\u6210\u7684\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\u4e2d\u8bbe\u7f6e\u65ad\u70b9\u3001\u67e5\u770b\u53d8\u91cf\u72b6\u6001\u3001\u5355\u6b65\u6267\u884c\u4ee3\u7801\uff0c\u4ece\u800c\u8be6\u7ec6\u4e86\u89e3\u6267\u884c\u6d41\u7a0b\u548c\u6392\u67e5\u95ee\u9898\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528\u65e5\u5fd7\u6253\u5370<\/h3>\n<\/p>\n

\u5728Spark SQL\u6267\u884c\u7684\u67e5\u8be2\u8fc7\u7a0b\u4e2d\uff0c\u4f7f\u7528\u65e5\u5fd7\u6253\u5370\u662f\u6700\u57fa\u7840\u4e5f\u662f\u6700\u76f4\u63a5\u7684\u8c03\u8bd5\u624b\u6bb5\u3002\u901a\u8fc7\u5728\u4ee3\u7801\u4e2d\u5408\u9002\u7684\u4f4d\u7f6e\u6253\u5370\u65e5\u5fd7\u4fe1\u606f\uff0c\u53ef\u4ee5\u89c2\u5bdf\u5230SQL\u6267\u884c\u7684\u5177\u4f53\u9636\u6bb5\u4e0e\u6267\u884c\u903b\u8f91\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u7406\u89e3Spark SQL\u7684\u6267\u884c\u8fc7\u7a0b\u3002<\/p>\n<\/p>\n

\u9996\u5148\uff0c\u53ef\u4ee5\u901a\u8fc7\u589e\u52a0\u65e5\u5fd7\u7ea7\u522b\u6765\u67e5\u770bSQL\u67e5\u8be2\u7684\u89e3\u6790\u4e0e\u4f18\u5316\u8fc7\u7a0b\u3002Spark\u901a\u8fc7log4j\u65e5\u5fd7\u6846\u67b6\u63a7\u5236\u65e5\u5fd7\u7684\u8f93\u51fa\uff0c\u6211\u4eec\u53ef\u4ee5\u4fee\u6539\u65e5\u5fd7\u914d\u7f6e\u6587\u4ef6\uff0c\u63d0\u5347Spark SQL\u6a21\u5757\u7684\u65e5\u5fd7\u7ea7\u522b\uff0c\u4ece\u800c\u89c2\u5bdf\u5230\u66f4\u4e3a\u8be6\u7ec6\u7684\u6267\u884c\u4fe1\u606f\u3002<\/p>\n<\/p>\n

\u5176\u6b21\uff0c\u5728\u81ea\u5b9a\u4e49\u7684\u51fd\u6570\u6216\u8005\u7b97\u5b50\u5185\u90e8\u6dfb\u52a0\u65e5\u5fd7\u6253\u5370\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4e86\u89e3\u6570\u636e\u7684\u6d41\u8f6c\u8fc7\u7a0b\u4ee5\u53ca\u51fd\u6570\u7684\u6267\u884c\u60c5\u51b5\u3002\u8fd9\u5728\u5904\u7406\u590d\u6742\u903b\u8f91\u6216\u8005\u8c03\u4f18\u6027\u80fd\u65f6\u5c24\u5176\u6709\u7528\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u5229\u7528IDE\u8c03\u8bd5\u5668<\/h3>\n<\/p>\n

\u82e5\u60f3\u6df1\u5c42\u6b21\u4e86\u89e3Spark SQL\u751f\u6210\u7684\u4ee3\u7801\u548c\u6267\u884c\u7ec6\u8282\uff0c\u5229\u7528\u96c6\u6210\u5f00\u53d1\u73af\u5883\uff08IDE\uff09\u7684\u8c03\u8bd5\u529f\u80fd\u662f\u975e\u5e38\u6709\u6548\u7684\u624b\u6bb5\u3002\u8fd9\u5305\u62ec\u8bbe\u7f6e\u65ad\u70b9\u3001\u67e5\u770b\u53d8\u91cf\u503c\u548c\u5355\u6b65\u8ddf\u8e2a\u6267\u884c\u8fc7\u7a0b\u7b49\u529f\u80fd\u3002<\/p>\n<\/p>\n

\u4e00\u65b9\u9762\uff0c\u5bf9\u4e8e\u672c\u5730\u6a21\u5f0f\u8fd0\u884c\u7684Spark\u5e94\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u5728IDE\u4e2d\u5bf9\u5176\u8fdb\u884c\u8c03\u8bd5\uff0c\u4e0e\u8c03\u8bd5\u5e38\u89c4Java\/Scala\u5e94\u7528\u7c7b\u4f3c\u3002\u5c06\u65ad\u70b9\u8bbe\u7f6e\u5728\u611f\u5174\u8da3\u7684\u4ee3\u7801\u6bb5\u4e0a\uff0c\u5f53\u7a0b\u5e8f\u6267\u884c\u5230\u8be5\u5904\u65f6\u5c06\u6682\u505c\uff0c\u6b64\u65f6\u53ef\u4ee5\u89c2\u5bdf\u5f53\u524d\u7684\u5806\u6808\u4fe1\u606f\u3001\u53d8\u91cf\u72b6\u6001\u7b49\u3002<\/p>\n<\/p>\n

\u53e6\u4e00\u65b9\u9762\uff0c\u5bf9\u4e8e\u96c6\u7fa4\u6a21\u5f0f\u4e0b\u6267\u884c\u7684Spark\u4f5c\u4e1a\uff0c\u867d\u7136\u4e0d\u80fd\u76f4\u63a5\u5728IDE\u4e2d\u8fdb\u884c\u65ad\u70b9\u8c03\u8bd5\uff0c\u4f46\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8fdc\u7a0b\u8c03\u8bd5\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u3002\u9700\u8981\u5728Spark\u63d0\u4ea4\u4f5c\u4e1a\u65f6\u6307\u5b9aJVM\u9009\u9879\u5f00\u542f\u8fdc\u7a0b\u8c03\u8bd5\u7aef\u53e3\uff0c\u7136\u540e\u901a\u8fc7IDE\u8fde\u63a5\u5230\u8fd9\u4e2a\u7aef\u53e3\u8fdb\u884c\u8c03\u8bd5\u3002<\/p>\n<\/p>\n

\u4e09\u3001Spark UI\u7684SQL\u67e5\u8be2\u53ef\u89c6\u5316<\/h3>\n<\/p>\n

Spark UI\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5f3a\u5927\u7684\u754c\u9762\uff0c\u7528\u4e8e\u5c55\u793a\u8fd0\u884c\u4e2d\u7684Spark\u5e94\u7528\u4fe1\u606f\uff0c\u5176\u4e2dSQL Tab\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u5173\u4e8eSQL\u67e5\u8be2\u6267\u884c\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u901a\u8fc7SQL Tab\u53ef\u4ee5\u67e5\u770b\u5230\u6bcf\u4e00\u4e2aSQL\u67e5\u8be2\u7684\u6267\u884c\u8ba1\u5212\u3001\u7269\u7406\u8ba1\u5212\u4ee5\u53ca\u6bcf\u4e00\u6b65\u7684\u6267\u884c\u65f6\u95f4\uff0c\u8fd9\u5bf9\u4e8e\u7406\u89e3\u67e5\u8be2\u7684\u6027\u80fd\u74f6\u9888\u975e\u5e38\u6709\u5e2e\u52a9\u3002<\/p>\n<\/p>\n

\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u53ef\u4ee5\u67e5\u770b\u6bcf\u4e2astage\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5305\u62ec\u4efb\u52a1\u6267\u884c\u65f6\u95f4\u3001Shuffle\u8bfb\u5199\u6570\u636e\u91cf\u7b49\uff0c\u8fd9\u4e9b\u4fe1\u606f\u5bf9\u4e8e\u6027\u80fd\u8c03\u4f18\u6781\u4e3a\u5173\u952e\u3002\u540c\u65f6\uff0cSpark UI\u8fd8\u63d0\u4f9b\u4e86DAG\u53ef\u89c6\u5316\uff0c\u53ef\u4ee5\u76f4\u89c2\u5730\u663e\u793a\u67e5\u8be2\u7684\u6267\u884c\u6d41\u7a0b\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u7406\u89e3\u5404\u4e2a\u64cd\u4f5c\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n<\/p>\n

\u56db\u3001\u4f7f\u7528EXPLAIN\u547d\u4ee4<\/h3>\n<\/p>\n

Spark SQL\u7684EXPLAIN<\/code>\u547d\u4ee4\u5141\u8bb8\u7528\u6237\u67e5\u770b\u7ed9\u5b9a\u67e5\u8be2\u7684\u6267\u884c\u8ba1\u5212\uff0c\u5305\u62ec\u903b\u8f91\u8ba1\u5212\u3001\u4f18\u5316\u540e\u7684\u903b\u8f91\u8ba1\u5212\u548c\u6700\u7ec8\u7684\u7269\u7406\u8ba1\u5212\u3002\u901a\u8fc7EXPLAIN<\/code>\u547d\u4ee4\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u76f4\u89c2\u5730\u7406\u89e3Spark SQL\u662f\u5982\u4f55\u5c06\u9ad8\u7ea7SQL\u67e5\u8be2\u8f6c\u5316\u4e3a\u5e95\u5c42\u7684\u7269\u7406\u6267\u884c\u8ba1\u5212\u7684\u3002<\/p>\n<\/p>\n

EXPLAIN<\/code>\u547d\u4ee4\u6709\u591a\u4e2a\u53d8\u4f53\uff0c\u5982EXPLAIN EXTENDED<\/code>\u4f1a\u663e\u793a\u66f4\u591a\u7684\u4fe1\u606f\uff0c\u5305\u62ec\u89e3\u6790\u540e\u7684\u903b\u8f91\u8ba1\u5212\u548c\u4f18\u5316\u8fc7\u7a0b\u4e2d\u7684\u903b\u8f91\u8ba1\u5212\u53d8\u6362\u3002\u901a\u8fc7\u8fd9\u4e9b\u8be6\u7ec6\u7684\u8ba1\u5212\u4fe1\u606f\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u67e5\u8be2\u7684\u6267\u884c\u8fc7\u7a0b\uff0c\u5e76\u9488\u5bf9\u6027\u5730\u8fdb\u884c\u4f18\u5316\u3002<\/p>\n<\/p>\n

\u4e94\u3001\u67e5\u770b\u7269\u7406\u8ba1\u5212\u548c\u751f\u6210\u7684\u4ee3\u7801<\/h3>\n<\/p>\n

\u6700\u540e\uff0c\u6df1\u5165\u5230Spark SQL\u6267\u884c\u7684\u6700\u5e95\u5c42\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u67e5\u770b\u751f\u6210\u7684\u7269\u7406\u8ba1\u5212\u548c\u76f8\u5e94\u7684Java\u4ee3\u7801\u6765\u8c03\u8bd5\u3002Spark SQL\u5728\u6267\u884cSQL\u67e5\u8be2\u65f6\uff0c\u4f1a\u6839\u636e\u7269\u7406\u8ba1\u5212\u751f\u6210\u76f8\u5e94\u7684Java\u4ee3\u7801\uff0c\u5e76\u8fdb\u884c\u7f16\u8bd1\u6267\u884c\u3002\u8fd9\u4e00\u8fc7\u7a0b\u662f\u7406\u89e3\u548c\u4f18\u5316Spark SQL\u6267\u884c\u6027\u80fd\u7684\u5173\u952e\u3002<\/p>\n<\/p>\n

\u901a\u8fc7\u8c03\u7528DataFrame\u6216Dataset\u7684queryExecution<\/code>\u5c5e\u6027\uff0c\u53ef\u4ee5\u83b7\u53d6\u5230\u751f\u6210\u7684\u7269\u7406\u8ba1\u5212\uff0c\u8fdb\u4e00\u6b65\u901a\u8fc7debugCodegen<\/code>\u65b9\u6cd5\u53ef\u4ee5\u67e5\u770b\u5230\u7531\u7269\u7406\u8ba1\u5212\u751f\u6210\u7684Java\u4ee3\u7801\u3002\u5206\u6790\u8fd9\u4e9b\u4ee3\u7801\uff0c\u5bf9\u4e8e\u9ad8\u7ea7\u7528\u6237\u6765\u8bf4\uff0c\u53ef\u4ee5\u6e05\u6670\u5730\u7406\u89e3\u6570\u636e\u5904\u7406\u7684\u5177\u4f53\u8fc7\u7a0b\uff0c\u5bf9\u4e8e\u6027\u80fd\u8c03\u4f18\u4e5f\u5927\u6709\u88e8\u76ca\u3002<\/p>\n<\/p>\n

\u603b\u4e4b\uff0c\u901a\u8fc7\u4e0a\u8ff0\u4e94\u79cd\u65b9\u6cd5\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u4ece\u4e0d\u540c\u5c42\u9762\u3001\u4e0d\u540c\u89d2\u5ea6\u5bf9Spark SQL\u751f\u6210\u7684\u4ee3\u7801\u8fdb\u884c\u8c03\u8bd5\uff0c\u4ece\u800c\u6df1\u5165\u7406\u89e3\u5176\u6267\u884c\u673a\u5236\u548c\u6027\u80fd\u7279\u70b9\u3002\u5c24\u5176\u662f\u5229\u7528IDE\u8c03\u8bd5\u5668\u548c\u6df1\u5165\u5206\u6790\u7269\u7406\u8ba1\u5212\u548c\u751f\u6210\u7684\u4ee3\u7801\uff0c\u5bf9\u4e8e\u89e3\u51b3\u590d\u6742\u95ee\u9898\u548c\u6027\u80fd\u4f18\u5316\u5c24\u5176\u91cd\u8981\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

\u95ee\u98981\uff1a\u5982\u4f55\u8c03\u8bd5\u7531Spark SQL\u751f\u6210\u7684\u4ee3\u7801\uff1f<\/strong><\/p>\n

\u7b54\uff1a\u82e5\u8981\u8c03\u8bd5\u7531Spark SQL\u751f\u6210\u7684\u4ee3\u7801\uff0c\u60a8\u53ef\u4ee5\u8003\u8651\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n

    \n
  1. \n

    \u4f7f\u7528\u65e5\u5fd7\u8bb0\u5f55\uff1a\u5728\u4ee3\u7801\u4e2d\u4f7f\u7528\u9002\u5f53\u7684\u65e5\u5fd7\u8bb0\u5f55\u5de5\u5177\uff0c\u5982log4j\uff0c\u5c06\u5173\u952e\u8c03\u8bd5\u4fe1\u606f\u8f93\u51fa\u5230\u65e5\u5fd7\u4e2d\u3002\u60a8\u53ef\u4ee5\u5728Spark\u5e94\u7528\u7a0b\u5e8f\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u8bbe\u7f6e\u65e5\u5fd7\u7ea7\u522b\uff0c\u4ee5\u4fbf\u83b7\u5f97\u6240\u9700\u7684\u4fe1\u606f\u91cf\u3002<\/p>\n<\/li>\n

  2. \n

    \u4f7f\u7528\u65ad\u70b9\u8c03\u8bd5\uff1a\u5c06\u65ad\u70b9\u6dfb\u52a0\u5230\u4ee3\u7801\u4e2d\u7684\u5173\u952e\u4f4d\u7f6e\uff0c\u4ee5\u4fbf\u5728\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u6682\u505c\u7a0b\u5e8f\u6267\u884c\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u8c03\u8bd5\u5668\uff08\u5982IDE\u4e2d\u7684\u8c03\u8bd5\u529f\u80fd\u6216\u8fdc\u7a0b\u8c03\u8bd5\uff09\u6765\u9010\u6b65\u6267\u884c\u4ee3\u7801\u5e76\u68c0\u67e5\u53d8\u91cf\u7684\u503c\u548c\u7a0b\u5e8f\u7684\u6267\u884c\u8def\u5f84\u3002<\/p>\n<\/li>\n

  3. \n

    \u5728\u672c\u5730\u6a21\u5f0f\u4e0b\u8fd0\u884c\uff1a\u5982\u679c\u60a8\u7684\u6570\u636e\u96c6\u8f83\u5c0f\uff0c\u53ef\u4ee5\u5c06Spark\u5e94\u7528\u7a0b\u5e8f\u5207\u6362\u5230\u672c\u5730\u6a21\u5f0f\u8fd0\u884c\u3002\u5728\u672c\u5730\u6a21\u5f0f\u4e0b\uff0c\u60a8\u53ef\u4ee5\u66f4\u65b9\u4fbf\u5730\u8c03\u8bd5\u4ee3\u7801\uff0c\u56e0\u4e3a\u5b83\u8fd0\u884c\u5728\u5355\u4e2a\u7ebf\u7a0b\u4e0a\uff0c\u5e76\u4e14\u60a8\u53ef\u4ee5\u4f7f\u7528IDE\u7684\u8c03\u8bd5\u529f\u80fd\u76f4\u63a5\u5728\u672c\u5730\u8fd0\u884c\u548c\u8c03\u8bd5\u4ee3\u7801\u3002<\/p>\n<\/li>\n

  4. \n

    \u4f7f\u7528\u6d4b\u8bd5\u5957\u4ef6\uff1a\u7f16\u5199\u9488\u5bf9Spark SQL\u4ee3\u7801\u7684\u5355\u5143\u6d4b\u8bd5\uff0c\u5e76\u4f7f\u7528\u9002\u5f53\u7684\u6d4b\u8bd5\u5957\u4ef6\u6765\u9a8c\u8bc1\u4ee3\u7801\u7684\u6b63\u786e\u6027\u3002\u6d4b\u8bd5\u5957\u4ef6\u53ef\u4ee5\u5e2e\u52a9\u60a8\u53d1\u73b0\u6f5c\u5728\u7684\u9519\u8bef\u548c\u5f02\u5e38\u60c5\u51b5\uff0c\u5e76\u63d0\u4f9b\u4e00\u79cd\u53ef\u91cd\u590d\u6027\u5730\u9a8c\u8bc1\u4ee3\u7801\u884c\u4e3a\u7684\u65b9\u6cd5\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u95ee\u98982\uff1a\u6709\u6ca1\u6709\u4e13\u95e8\u7528\u4e8e\u8c03\u8bd5Spark SQL\u4ee3\u7801\u7684\u5de5\u5177\uff1f<\/strong><\/p>\n

    \u7b54\uff1a\u76ee\u524d\uff0c\u6ca1\u6709\u4e13\u95e8\u7528\u4e8e\u8c03\u8bd5Spark SQL\u4ee3\u7801\u7684\u5de5\u5177\u3002\u4f46\u662f\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u6765\u5e2e\u52a9\u8c03\u8bd5Spark SQL\u4ee3\u7801\uff1a<\/p>\n

      \n
    1. \n

      \u4f7f\u7528Spark Web UI\uff1a\u5728Spark Web UI\u4e2d\uff0c\u60a8\u53ef\u4ee5\u67e5\u770bSpark SQL\u6267\u884c\u8ba1\u5212\u3001\u4efb\u52a1\u548c\u9636\u6bb5\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u60a8\u4e86\u89e3\u4ee3\u7801\u7684\u6267\u884c\u8fc7\u7a0b\u5e76\u53d1\u73b0\u6f5c\u5728\u7684\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<\/li>\n

    2. \n

      \u4f7f\u7528DataFrame API\u7684\u8c03\u8bd5\u529f\u80fd\uff1aSpark SQL\u7684DataFrame API\u63d0\u4f9b\u4e86\u4e00\u4e9b\u8c03\u8bd5\u529f\u80fd\uff0c\u5982explain()<\/code>\u65b9\u6cd5\u548cshow()<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5e2e\u52a9\u60a8\u7406\u89e3\u4ee3\u7801\u7684\u6267\u884c\u8ba1\u5212\u548c\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<\/li>\n

    3. \n

      \u4f7f\u7528Spark SQL\u7684\u5185\u7f6e\u51fd\u6570\uff1aSpark SQL\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u5185\u7f6e\u51fd\u6570\uff0c\u53ef\u4ee5\u5728\u67e5\u8be2\u8fc7\u7a0b\u4e2d\u6dfb\u52a0\u81ea\u5b9a\u4e49\u903b\u8f91\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b\u5185\u7f6e\u51fd\u6570\u6765\u8f93\u51fa\u4e2d\u95f4\u7ed3\u679c\u3001\u8bb0\u5f55\u65e5\u5fd7\u6216\u6267\u884c\u5176\u4ed6\u8c03\u8bd5\u64cd\u4f5c\u3002<\/p>\n<\/li>\n<\/ol>\n

      \u95ee\u98983\uff1a\u8c03\u8bd5Spark SQL\u4ee3\u7801\u65f6\u9700\u8981\u6ce8\u610f\u54ea\u4e9b\u95ee\u9898\uff1f<\/strong><\/p>\n

      \u7b54\uff1a\u5728\u8c03\u8bd5Spark SQL\u4ee3\u7801\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u4e2a\u95ee\u9898\uff1a<\/p>\n

        \n
      1. \n

        \u6570\u636e\u91cf\u7684\u5927\u5c0f\uff1a\u786e\u4fdd\u60a8\u5728\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\u4f7f\u7528\u7684\u6570\u636e\u91cf\u4e0d\u4f1a\u8fc7\u5927\uff0c\u4ee5\u907f\u514d\u957f\u65f6\u95f4\u7684\u7b49\u5f85\u548c\u6267\u884c\u65f6\u95f4\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u91c7\u6837\u6570\u636e\u6216\u9650\u5236\u6570\u636e\u91cf\u6765\u7f29\u5c0f\u8303\u56f4\uff0c\u4ee5\u66f4\u5feb\u5730\u8fdb\u884c\u8c03\u8bd5\u3002<\/p>\n<\/li>\n

      2. \n

        \u8bb0\u5f55\u65e5\u5fd7\u548c\u9519\u8bef\u5904\u7406\uff1a\u5728\u4ee3\u7801\u4e2d\u6dfb\u52a0\u9002\u5f53\u7684\u9519\u8bef\u5904\u7406\u548c\u5f02\u5e38\u5904\u7406\u673a\u5236\uff0c\u4ee5\u4fbf\u5728\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\u80fd\u591f\u6355\u83b7\u548c\u5904\u7406\u9519\u8bef\u3002\u540c\u65f6\uff0c\u5bf9\u5173\u952e\u64cd\u4f5c\u548c\u7ed3\u679c\u8fdb\u884c\u65e5\u5fd7\u8bb0\u5f55\uff0c\u4ee5\u4fbf\u5728\u51fa\u73b0\u95ee\u9898\u65f6\u8fdb\u884c\u8ddf\u8e2a\u548c\u8c03\u8bd5\u3002<\/p>\n<\/li>\n

      3. \n

        \u67e5\u770b\u6267\u884c\u8ba1\u5212\uff1a\u4f7f\u7528Spark SQL\u7684\u6267\u884c\u8ba1\u5212\u529f\u80fd\uff08\u5982explain()<\/code>\u65b9\u6cd5\uff09\u6765\u67e5\u770b\u4ee3\u7801\u7684\u6267\u884c\u8ba1\u5212\u3002\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u60a8\u7406\u89e3\u4ee3\u7801\u4e2d\u7684\u4f18\u5316\u548c\u6267\u884c\u8fc7\u7a0b\uff0c\u5e76\u53d1\u73b0\u6f5c\u5728\u7684\u6027\u80fd\u95ee\u9898\u3002<\/p>\n<\/li>\n

      4. \n

        \u7f16\u5199\u53ef\u91cd\u590d\u7684\u6d4b\u8bd5\u7528\u4f8b\uff1a\u4e3a\u60a8\u7684Spark SQL\u4ee3\u7801\u7f16\u5199\u53ef\u91cd\u590d\u7684\u6d4b\u8bd5\u7528\u4f8b\uff0c\u4ee5\u4fbf\u5728\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\u9a8c\u8bc1\u4ee3\u7801\u7684\u6b63\u786e\u6027\u3002\u6d4b\u8bd5\u7528\u4f8b\u53ef\u4ee5\u5e2e\u52a9\u60a8\u5b9a\u4f4d\u548c\u4fee\u590d\u95ee\u9898\uff0c\u5e76\u786e\u4fdd\u4ee3\u7801\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"Spark SQL\u751f\u6210\u7684\u4ee3\u7801\u8c03\u8bd5\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u5173\u952e\u65b9\u6cd5\u6765\u5b9e\u73b0\uff1a\u4f7f\u7528\u65e5\u5fd7\u6253\u5370\u3001\u5229\u7528IDE\u8c03\u8bd5\u5668\u3001Spark UI\u7684 […]","protected":false},"author":3,"featured_media":263506,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/263498"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=263498"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/263498\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/263506"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=263498"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=263498"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=263498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}