{"id":10021288,"date":"2026-03-03T11:32:13","date_gmt":"2026-03-03T03:32:13","guid":{"rendered":"https:\/\/itmax.cn\/?p=10021288"},"modified":"2026-03-03T11:32:13","modified_gmt":"2026-03-03T03:32:13","slug":"%e6%b7%b1%e5%85%a5%e5%89%96%e6%9e%90spark-ui%e7%95%8c%e9%9d%a2%ef%bc%9a%e5%8f%82%e6%95%b0%e4%b8%8e%e7%95%8c%e9%9d%a2%e8%af%a6%e8%a7%a3%e5%be%97%e7%89%a9%e6%8a%80%e6%9c%af","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10021288","title":{"rendered":"\u6df1\u5165\u5256\u6790Spark UI\u754c\u9762\uff1a\u53c2\u6570\u4e0e\u754c\u9762\u8be6\u89e3|\u5f97\u7269\u6280\u672f"},"content":{"rendered":"<h2>\u4e00\u3001\u6982\u8ff0<\/h2>\n<p>Spark UI\u662fApache Spark\u5185\u7f6e\u7684Web\u76d1\u63a7\u754c\u9762\uff0c\u4e3a\u5f00\u53d1\u8005\u548c\u8fd0\u7ef4\u4eba\u5458\u63d0\u4f9b\u5bf9Spark\u5e94\u7528\u7a0b\u5e8f\u6267\u884c\u8fc7\u7a0b\u7684\u5b9e\u65f6\u3001\u53ef\u89c6\u5316\u6d1e\u5bdf\u3002\u5b83\u4ee5\u76f4\u89c2\u7684\u65b9\u5f0f\u5c55\u793a\u4f5c\u4e1a\uff08Jobs\uff09\u3001\u9636\u6bb5\uff08Stages\uff09\u3001\u4efb\u52a1\uff08Tasks\uff09\u3001SQL\u6267\u884c\u8ba1\u5212\u3001Executor\u8d44\u6e90\u4f7f\u7528\u3001\u5b58\u50a8\u72b6\u6001\u53ca\u8fd0\u884c\u65f6\u73af\u5883\u7b49\u5173\u952e\u4fe1\u606f\u3002\u901a\u8fc7Spark UI\uff0c\u7528\u6237\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u6027\u80fd\u74f6\u9888\uff08\u5982\u6570\u636e\u503e\u659c\u3001Shuffle \u5f00\u9500\u3001\u8c03\u5ea6\u5ef6\u8fdf\uff09\u3001\u5206\u6790\u6267\u884c\u8ba1\u5212\u3001\u76d1\u63a7\u8d44\u6e90\u5229\u7528\u7387\uff0c\u5e76\u8fdb\u884c\u6709\u6548\u7684\u8c03\u4f18\u4e0e\u6545\u969c\u6392\u67e5\u3002\u65e0\u8bba\u662f\u5f00\u53d1\u8c03\u8bd5\u8fd8\u662f\u751f\u4ea7\u8fd0\u7ef4\uff0cSpark UI\u90fd\u662f\u7406\u89e3\u548c\u4f18\u5316Spark\u5e94\u7528\u4e0d\u53ef\u6216\u7f3a\u7684\u6838\u5fc3\u5de5\u5177\u3002<\/p>\n<h3>\u4e8c\u3001Spark UI \u4e00\u7ea7\u5165\u53e3<\/h3>\n<p>\u6253\u5f00Spark UI\uff0c\u5c31\u4f1a\u770b\u5230\u5f53\u524d\u7684\u4e00\u4e2aJobs\u9875\u9762\uff0c\u8fd9\u4e2a\u9875\u9762\u4f1a\u8bb0\u5f55\u5f53\u524d\u4f5c\u4e1a\u4e2d\u6570\u636e\u7684\u79fb\u52a8\uff0c\u8bfb\u53d6\u7b49\u76f8\u5173\u52a8\u4f5c\uff0c\u9664\u6b64\u4e4b\u5916\uff0c\u4e00\u7ea7\u5165\u53e3\u8fd8\u4f1a\u5305\u62ec\u4f5c\u4e1a\u8fd0\u884c\u65f6\u7684\u5176\u4ed6\u5c5e\u6027\u4e0e\u6307\u6807\uff0c\u4e3b\u8981\u5305\u62ec\uff1aStages\u3001Storage\u3001Environment\u3001Executors\u3001SQL \u3002<\/p>\n<p><strong>\u4e00\u7ea7\u5165\u53e3\u754c\u9762\u5982\u4e0b\u6240\u793a<\/strong>\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630542\" alt=\"\" title=\"\"><\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u7531\u7b80\u5165\u7e41\uff0c\u4ece\u8861\u91cf\u4efb\u52a1\u7684\u6574\u4f53\u6307\u6807\u4f9d\u6b21\u4ecb\u7ecd\u5404\u4e2a\u5165\u53e3\u7684\u7684\u529f\u80fd\u4e0e\u4f5c\u7528\uff0c\u9996\u5148\u6211\u4eec\u5148\u770bExecutors\uff0c\u5148\u5bf9\u4f5c\u4e1a\u6574\u4f53\u7684\u4e00\u4e2a\u8ba1\u7b97\u8d1f\u8f7d\u8fdb\u884c\u4e86\u89e3\u3002<\/p>\n<h3>Executors<\/h3>\n<p>Executors Tab\u4e3b\u8981\u5305\u62ec\u4e24\u90e8\u5206\uff0cSummary\u548cExecutors\u4e24\u90e8\u5206\uff0c\u5176\u4e2dSummary\u662f\u6240\u6709\u7684Executors\u5ea6\u91cf\u6307\u6807\u7684\u52a0\u548c\uff0c\u800cExecutors\u5219\u662f\u63cf\u8ff0\u6bcf\u4e00\u4e2aExecutor\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u7c92\u5ea6\u4f1a\u66f4\u7ec6\uff0c\u65b9\u4fbf\u5bf9\u6bcf\u4e2aExecutor\u7684\u60c5\u51b5\u8fdb\u884c\u4e86\u89e3\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630543\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u4e0b\u9762\u6211\u4eec\u5bf9Spark UI\u5bf9Executors\u63d0\u4f9b\u7684Metrics\u8fdb\u884c\u4ecb\u7ecd\uff0c\u65b9\u4fbf\u6211\u4eec\u5bf9\u6bcf\u4e2aExecutor\u8282\u70b9\u7684\u8fd0\u884c\u60c5\u51b5\u6709\u66f4\u597d\u7684\u4e86\u89e3\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630544\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>Spark UI\u4e2d\u7684Executors\u754c\u9762\u662f\u76d1\u63a7\u548c\u8bca\u65adSpark\u5e94\u7528\u8fd0\u884c\u72b6\u6001\u7684\u6838\u5fc3\u7a97\u53e3\u4e4b\u4e00\uff0c\u5b83\u4ece\u6267\u884c\u5668\uff08Executor\uff09\u7c92\u5ea6\u5c55\u793a\u4e86\u6574\u4e2a\u96c6\u7fa4\u7684\u8d44\u6e90\u4f7f\u7528\u3001\u4efb\u52a1\u8d1f\u8f7d\u548c\u6570\u636e\u5206\u5e03\u60c5\u51b5\uff0c\u4ee5\u53ca\u5b83\u4eec\u5bf9CPU\u3001\u5185\u5b58\u4e0e\u78c1\u76d8\u7b49\u786c\u4ef6\u8d44\u6e90\u7684\u6d88\u8017\u3002\u57fa\u4e8e\u8fd9\u4e9b\u4fe1\u606f\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u4e0d\u540c\u7684Executor\u7684\u72b6\u6001\uff0c\u662f\u5426\u6709\u4e2a\u522b\u7684Executor\u5b58\u5728\u8d1f\u8f7d\u4e0d\u5747\u8861\u7684\u60c5\u51b5\uff0c\u4ece\u800c\u5feb\u901f\u7684\u5b9a\u4f4d\u95ee\u9898\uff0c\u4f8b\u5982\u6570\u636e\u503e\u659c\u7b49\u3002<\/p>\n<h3>Environment<\/h3>\n<p>\u8fd9\u91cc\u8bf4\u4e00\u4e0bEnvironment\uff0c\u663e\u800c\u6613\u89c1\uff0c\u8fd9\u91cc\u4e3b\u8981\u5c55\u793a\u6211\u4eec\u7684\u4efb\u52a1\u7684\u4e00\u4e9b\u914d\u7f6e\u9879\uff0c\u5b83\u4e3b\u8981\u5305\u62ec\u4e94\u5927\u73af\u5883\u4fe1\u606f\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630545\" alt=\"\" title=\"\" loading=\"lazy\"> \u901a\u8fc7\u67e5\u770bEnvironment\u7684\u4fe1\u606f\uff0c\u6211\u4eec\u53ef\u4ee5\u5feb\u901f\u83b7\u53d6\u5f53\u524d\u4efb\u52a1\u7684\u914d\u7f6e\u4fe1\u606f\uff0c\u8fd9\u91cc\u4e3b\u8981\u67e5\u770bSpark Properties\u4fe1\u606f\uff0c\u6765\u53bb\u5224\u65ad\u5f53\u524d\u4efb\u52a1\u7684\u914d\u7f6e\u9879\u662f\u5426\u7b26\u5408\u6211\u4eec\u7684\u9884\u671f\uff0c\u4ece\u800c\u4f5c\u51fa\u9002\u5f53\u7684\u8c03\u6574\uff0c\u4f18\u5316\u4efb\u52a1\u7684\u6027\u80fd\u3002<\/p>\n<h3>Storage<\/h3>\n<p>Spark UI\u4e2d\u7684Storage\u754c\u9762 \u662f\u7528\u4e8e\u76d1\u63a7\u548c\u7ba1\u7406 \u7f13\u5b58\u6570\u636e\uff08Persisted\/Cached Data\uff09\u7684\u6838\u5fc3\u7a97\u53e3\u3002\u5b83\u76f4\u89c2\u5c55\u793a\u4e86\u54ea\u4e9bRDD\u6216DataFrame\u88ab\u7f13\u5b58\u3001\u7f13\u5b58\u5728\u54ea\u91cc\u3001\u5360\u7528\u4e86\u591a\u5c11\u8d44\u6e90\uff0c\u662f\u4f18\u5316\u5185\u5b58\u4f7f\u7528\u548c\u907f\u514dOOM\uff08Out of Memory\uff09\u7684\u5173\u952e\u5de5\u5177\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630546\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>Cached Partitions\u4e0eFraction Cached\u5206\u522b\u8bb0\u5f55\u7740\u6570\u636e\u96c6\u6210\u529f\u7f13\u5b58\u7684\u5206\u533a\u6570\u91cf\uff0c\u4ee5\u53ca\u8fd9\u4e9b\u7f13\u5b58\u7684\u5206\u533a\u5360\u6240\u6709\u5206\u533a\u7684\u6bd4\u4f8b\u3002\u800c\u5f53Fraction Cached\u6ca1\u6709\u8fbe\u5230100%\u65f6\uff0c\u8bf4\u660e\u8be5\u6570\u636e\u96c6\u672a\u80fd\u5b8c\u5168\u7f13\u5b58\u5728\u5185\u5b58\uff0c\u53c2\u7167spark\u5185\u5b58\u7ba1\u7406\u53ef\u77e5\uff0c\u6b64\u65f6\u4f1a\u51fa\u73b0\u6570\u636e\u6362\u5165\u6362\u51fa\u7684\u60c5\u51b5\uff0c\u663e\u6027\u7684\u8bf4\u660e\u6b64\u65f6\u9700\u8981\u53c2\u4e0e\u7684\u8ba1\u7b97\u91cf\u5927\uff0c\u6267\u884c\u5185\u5b58\u4f1a\u5360\u7528\u7f13\u5b58\u5185\u5b58Size in Memory\u4e0eSize in Disk\uff0c\u5219\u66f4\u52a0\u76f4\u89c2\u5730\u5c55\u793a\u4e86\u6570\u636e\u96c6\u7f13\u5b58\u5728\u5185\u5b58\u4e0e\u786c\u76d8\u4e2d\u7684\u5206\u5e03\u3002<\/p>\n<h3>SQL<\/h3>\n<p>Spark UI\u4e2d\u7684SQL\u9875\u9762\uff08SQL Tab\uff09\u662fSpark SQL \/ DataFrame\u4f5c\u4e1a\u7684\u6838\u5fc3\u76d1\u63a7\u4e0e\u4f18\u5316\u5165\u53e3\u3002\u5b83\u4e13\u4e3a\u7ed3\u6784\u5316\u67e5\u8be2\u8bbe\u8ba1\uff0c\u5c06\u903b\u8f91\u6267\u884c\u8ba1\u5212\u3001\u7269\u7406\u6267\u884c\u8fc7\u7a0b\u3001\u6027\u80fd\u74f6\u9888\u548c\u6570\u636e\u6d41\u52a8\u4ee5\u53ef\u89c6\u5316\u65b9\u5f0f\u5448\u73b0\uff0c\u662f\u8bca\u65ad\u6162\u67e5\u8be2\u3001\u9a8c\u8bc1\u4f18\u5316\u7b56\u7565\u3001\u7406\u89e3AQE\u884c\u4e3a\u7684\u201c\u9a7e\u9a76\u8231\u201d\u3002 <img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630547\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h3>Stages<\/h3>\n<p>Spark UI\u7684Stages\u754c\u9762 \u662f\u6027\u80fd\u8c03\u4f18\u548c\u6545\u969c\u8bca\u65ad\u7684\u6838\u5fc3\u5165\u53e3\u3002\u5b83\u4eceStage\uff08\u9636\u6bb5\uff09\u7c92\u5ea6\u5c55\u793a\u4e86Spark\u4f5c\u4e1a\u7684\u6267\u884c\u7ec6\u8282\uff0c\u5e2e\u52a9\u4f60\u7cbe\u51c6\u5b9a\u4f4d\u6162\u4efb\u52a1\u3001\u6570\u636e\u503e\u659c\u3001\u8d44\u6e90\u74f6\u9888\u7b49\u95ee\u9898\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630548\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630549\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h3>Jobs<\/h3>\n<p>Spark UI\u7684Jobs\u754c\u9762 \u662f\u6574\u4e2aSpark\u5e94\u7528\u76d1\u63a7\u4f53\u7cfb\u7684\u9876\u5c42\u5165\u53e3\uff0c\u5b83\u4ee5Job\uff08\u4f5c\u4e1a\uff09\u4e3a\u5355\u4f4d\uff0c\u63d0\u4f9b\u5168\u5c40\u89c6\u89d2\u7684\u6267\u884c\u6982\u89c8\uff0c\u5e2e\u52a9\u4f60\u5feb\u901f\u5224\u65ad\u5e94\u7528\u6574\u4f53\u5065\u5eb7\u72b6\u51b5\u3001\u8bc6\u522b\u5931\u8d25\u4f5c\u4e1a\u3001\u5b9a\u4f4d\u6027\u80fd\u74f6\u9888\u8d77\u70b9\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630550\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630551\" alt=\"\" title=\"\" loading=\"lazy\"> \u81f3\u6b64\uff0c\u6211\u4eec\u5df2\u5bf9Spark UI\u5bfc\u822a\u680f\u4e2d\u7684\u5404\u4e2a\u9875\u9762\u8fdb\u884c\u4e86\u4e0d\u540c\u7a0b\u5ea6\u7684\u89e3\u6790\u3002\u6574\u4f53\u6765\u770b\uff0c\u8fd9\u4e9b\u9875\u9762\u53ef\u5206\u4e3a\u4e24\u7c7b\uff1a<\/p>\n<ul>\n<li><strong>\u201c\u8be6\u60c5\u578b\u201d\u9875\u9762\uff1a\u5305\u62ecExecutors\u3001Environment\u548c Storage\uff1a<\/strong> \u5b83\u4eec\u76f4\u63a5\u5c55\u793a\u96c6\u7fa4\u7684\u7cfb\u7edf\u7ea7\u72b6\u6001\u2014\u2014\u5982\u8ba1\u7b97\u8d44\u6e90\u8d1f\u8f7d\u5206\u5e03\u3001\u8fd0\u884c\u65f6\u73af\u5883\u914d\u7f6e\u3001\u7f13\u5b58\u6570\u636e\u8be6\u60c5\u7b49\u3002\u5f00\u53d1\u8005\u65e0\u9700\u989d\u5916\u8df3\u8f6c\uff0c\u5373\u53ef\u5feb\u901f\u83b7\u53d6\u5173\u952e\u7684\u5e95\u5c42\u4fe1\u606f\u3002<\/li>\n<li><strong>\u201c\u6982\u89c8 + \u4e0b\u94bb\u578b\u201d\u9875\u9762\uff1a\u5305\u62ecSQL\u3001Jobs \u548c Stages:<\/strong> \u5b83\u4eec\u9996\u5148\u4ee5\u5217\u8868\u5f62\u5f0f\u63d0\u4f9b\u4f5c\u4e1a\u6216\u67e5\u8be2\u7684\u9ad8\u5c42\u6c47\u603b\u89c6\u56fe\uff0c\u82e5\u9700\u6df1\u5165\u5206\u6790\u6267\u884c\u8ba1\u5212\u3001\u4efb\u52a1\u5206\u5e03\u3001\u6027\u80fd\u74f6\u9888\u7b49\u7ec6\u8282\uff0c\u5219\u9700\u70b9\u51fb\u8fdb\u5165\u5bf9\u5e94\u7684\u4e8c\u7ea7\u8be6\u60c5\u9875\u8fdb\u884c\u4e0b\u94bb\u63a2\u67e5\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u79cd\u5206\u5c42\u8bbe\u8ba1\u65e2\u652f\u6301\u5feb\u901f\u6982\u89c8\uff0c\u53c8\u4fdd\u7559\u4e86\u6df1\u5ea6\u8bca\u65ad\u7684\u80fd\u529b\uff0c\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u4ece\u5b8f\u89c2\u5230\u5fae\u89c2\u7684\u5b8c\u6574\u89c2\u6d4b\u8def\u5f84\u3002<\/p>\n<h2>\u4e09\u3001Spark UI \u4e8c\u7ea7\u5165\u53e3<\/h2>\n<p>\u4e8c\u7ea7\u5165\u53e3\u6307\u7684\u662f\u9700\u8981\u901a\u8fc7\u4e00\u6b21\u8d85\u94fe\u63a5\u70b9\u51fb\u624d\u80fd\u8fdb\u5165\u7684\u8be6\u60c5\u9875\u9762\u3002\u5bf9\u4e8e<strong>SQL<\/strong>\u3001<strong>Jobs<\/strong>\u548c<strong>Stages<\/strong>\u8fd9\u4e09\u4e2a\u4e3b\u5165\u53e3\u800c\u8a00\uff0c\u5176\u5bf9\u5e94\u7684\u4e8c\u7ea7\u9875\u9762\u901a\u5e38\u5df2\u5305\u542b\u6781\u4e3a\u4e30\u5bcc\u7684\u8bca\u65ad\u4fe1\u606f\u2014\u2014\u6db5\u76d6\u67e5\u8be2\u6267\u884c\u8ba1\u5212\u3001\u4f5c\u4e1a\u751f\u547d\u5468\u671f\u3001\u4efb\u52a1\u7ea7\u6027\u80fd\u6307\u6807\u7b49\uff0c\u57fa\u672c\u6784\u6210\u4e86Spark\u5e94\u7528\u7684\u201c\u5065\u5eb7\u4f53\u68c0\u62a5\u544a\u201d\u6838\u5fc3\u5185\u5bb9\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u6309\u7167<strong>SQL \u2192 Jobs \u2192 Stages<\/strong>\u7684\u903b\u8f91\u987a\u5e8f\uff0c\u4f9d\u6b21\u6df1\u5165\u8fd9\u4e09\u4e2a\u4e8c\u7ea7\u8be6\u60c5\u9875\uff0c\u7cfb\u7edf\u6027\u5730\u5256\u6790\uff1a<\/p>\n<ul>\n<li>\u5168\u5c40DAG\u6267\u884c\u7ed3\u6784\uff08\u6765\u81eaSQL\u9875\u9762\uff09\uff1b<\/li>\n<li>\u4f5c\u4e1a\u7684\u5b8c\u6574\u6267\u884c\u6d41\u7a0b\u4e0e\u4f9d\u8d56\u5173\u7cfb\uff08\u6765\u81eaJobs\u9875\u9762\uff09\uff1b<\/li>\n<li>\u4ee5\u53ca\u5404\u8ba1\u7b97\u9636\u6bb5\uff08Stage\uff09\u7684\u8d44\u6e90\u4f7f\u7528\u4e0e\u8fd0\u884c\u7ec6\u8282\uff08\u6765\u81eaStages\u9875\u9762\uff09\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u8fd9\u4e00\u5c42\u5c42\u9012\u8fdb\u7684\u5206\u6790\u8def\u5f84\uff0c\u6211\u4eec\u5c06\u83b7\u5f97\u5bf9Spark\u5e94\u7528\u6267\u884c\u884c\u4e3a\u66f4\u5168\u9762\u3001\u66f4\u6df1\u5165\u7684\u6d1e\u5bdf\u3002<\/p>\n<h3>SQL\u8be6\u60c5\u9875<\/h3>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630552\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u901a\u8fc7\u70b9\u51fb\u56fe\u4e2d\u7684with&#8230;\u53ef\u4ee5\u8fdb\u5165\u5230\u8be5\u4f5c\u4e1a\u7684\u8be6\u7ec6\u6267\u884c\u754c\u9762\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630553\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5728\u6570\u636e\u5206\u6790\u573a\u666f\u4e2d\uff0c\u5927\u90e8\u5206\u7684\u64cd\u4f5c\u5305\u62ec\u8fc7\u6ee4\u3001\u5206\u7ec4\u3001\u805a\u5408\u3001\u5173\u8054\u3001\u6392\u5e8f\u3002\u6240\u5bf9\u5e94\u7684\u6267\u884c\u8ba1\u5212\u56fe\u4e2dExchange\uff1a\u4ee3\u8868\u7684\u662fShuffle\u64cd\u4f5c\uff0cSort\uff1a\u4ee3\u8868\u7684\u662f\u6392\u5e8f\uff0cAggregate\uff1a\u4ee3\u8868\u7684\u662f\u6570\u636e\u805a\u5408\u3002<\/p>\n<p>\u8fd9\u4e09\u7c7b\u64cd\u4f5c\u662f\u786c\u4ef6\u8d44\u6e90\uff08\u5982 CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u548c\u7f51\u7edc\uff09\u7684\u4e3b\u8981\u6d88\u8017\u8005\u3002\u4e0e\u6b64\u540c\u65f6\uff0cSpark UI\u4e5f\u4e3a\u5b83\u4eec\u5206\u522b\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u7ec6\u7c92\u5ea6\u6307\u6807\uff08Metrics\uff09\uff0c\u7528\u4ee5\u7cbe\u786e\u523b\u753b\u5404\u7c7b\u8d44\u6e90\u7684\u4f7f\u7528\u60c5\u51b5\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u805a\u7126\u4e8e\u8fd9\u4e09\u7c7b\u64cd\u4f5c\uff0c\u6df1\u5165\u89e3\u6790\u5176\u5bf9\u5e94\u7684\u5ea6\u91cf\u6307\u6807\uff0c\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u8d44\u6e90\u6d88\u8017\u6a21\u5f0f\u5e76\u6307\u5bfc\u6027\u80fd\u8c03\u4f18\u3002<\/p>\n<h4>Exchange<\/h4>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630554\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u9488\u5bf9\u6bcf\u4e00\u4e2aExchange\u64cd\u4f5c\uff0cSpark UI\u90fd\u63d0\u4f9b\u4e86\u5168\u9762\u800c\u7ec6\u81f4\u7684\u6307\u6807\uff08Metrics\uff09\uff0c\u5b8c\u6574\u8986\u76d6\u4e86Shuffle\u7684\u6574\u4e2a\u751f\u547d\u5468\u671f\u2014\u2014\u4eceShuffle Write\u5230Shuffle Read\uff0c\u4ece\u6570\u636e\u89c4\u6a21\u5230\u5904\u7406\u8017\u65f6\uff0c\u5173\u952e\u7ef4\u5ea6\u4e00\u5e94\u4ff1\u5168\u3002<\/p>\n<p>\u4e3a\u4e86\u4fbf\u4e8e\u7406\u89e3\u548c\u53c2\u8003\uff0c\u6211\u5c06\u8fd9\u4e9bMetrics\u7684\u542b\u4e49\u548c\u4f5c\u7528\u6574\u7406\u6210\u8868\u683c\u5f62\u5f0f\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630555\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h4>Sort<\/h4>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630556\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u201cPeak memory total\u201d\u548c\u201cSpill size total\u201d\u8fd9\u4e24\u4e2a\u6570\u503c\uff0c\u8db3\u4ee5\u6307\u5bfc\u6211\u4eec\u66f4\u6709\u9488\u5bf9\u6027\u5730\u53bb\u8bbe\u7f6espark.executor.memory\u3001spark.memory.fraction\u3001spark.memory.storageFraction\uff0c\u4ece\u800c\u4f7f\u5f97Execution Memory\u533a\u57df\u5f97\u5230\u5145\u5206\u7684\u4fdd\u969c\u3002<\/p>\n<h4>Aggregate<\/h4>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630557\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5bf9\u4e8eAggregate\u64cd\u4f5c\uff0cSpark UI\u4e5f\u8bb0\u5f55\u7740\u78c1\u76d8\u6ea2\u51fa\u4e0e\u5cf0\u503c\u6d88\u8017\uff0c\u5373Spill size\u548cPeak memory total\u3002\u8fd9\u4e24\u4e2a\u6570\u503c\u4e5f\u4e3a\u5185\u5b58\u7684\u8c03\u6574\u63d0\u4f9b\u4e86\u4f9d\u636e\u3002<\/p>\n<h3>Stages\u8be6\u60c5\u9875<\/h3>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630558\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5728\u6240\u6709\u4e8c\u7ea7\u5165\u53e3\u4e2d\uff0cStage\u8be6\u60c5\u9875\u7684\u4fe1\u606f\u91cf\u53ef\u4ee5\u8bf4\u662f\u6700\u5927\u7684\u3002\u70b9\u8fdbStage\u8be6\u60c5\u9875\uff0c\u53ef\u4ee5\u770b\u5230\u5b83\u4e3b\u8981\u5305\u542b3\u5927\u7c7b\u4fe1\u606f\uff0c\u5206\u522b\u662fStage DAG\u3001Event Timeline\u4e0eTask Metrics\u3002\u5176\u4e2d\uff0cTask Metrics\u53c8\u5206\u4e3a\u201cSummary\u201d\u4e0e\u201cEntry details\u201d\u4e24\u90e8\u5206\uff0c\u63d0\u4f9b\u4e0d\u540c\u3002<\/p>\n<h4>Stage DAG<\/h4>\n<p>\u6211\u4eec\u9996\u5148\u6765\u770b\u6700\u7b80\u5355\u7684Stage DAG\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630559\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u4e4b\u6240\u4ee5\u8bf4Stage\u7684DAG\u76f8\u5bf9\u7b80\u5355\uff0c\u662f\u56e0\u4e3a\u6211\u4eec\u5df2\u5728SQL\u9875\u9762\u7684\u4e8c\u7ea7\u8be6\u60c5\u4e2d\u5bf9\u5b8c\u6574\u7684\u6267\u884cDAG\u8fdb\u884c\u4e86\u6df1\u5165\u89e3\u6790\u3002\u800cStage\u7ea7\u522b\u7684DAG\u672c\u8d28\u4e0a\u53ea\u662f\u8be5\u4f5c\u4e1a\uff08Job\uff09\u6574\u4f53DAG\u7684\u4e00\u4e2a\u5c40\u90e8\u7247\u6bb5\u2014\u2014\u5b83\u4ec5\u5bf9\u5e94\u5176\u4e2d\u67d0\u4e00\u4e2a\u8ba1\u7b97\u9636\u6bb5\u3002\u56e0\u6b64\uff0c\u4e00\u65e6\u4f60\u7406\u89e3\u4e86SQL\u9875\u9762\u4e2d\u9762\u5411\u6574\u4e2aJob\u7684\u5b8c\u6574DAG\u7ed3\u6784\uff0cStage \u5c42\u9762\u7684DAG\u81ea\u7136\u4e5f\u5c31\u4e00\u76ee\u4e86\u7136\u3001\u65e0\u9700\u91cd\u590d\u6df1\u7a76\u4e86\u3002<\/p>\n<h4>Event Timeline<\/h4>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630560\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>Event Timeline\uff0c\u8bb0\u5f55\u7740\u5206\u5e03\u5f0f\u4efb\u52a1\u8c03\u5ea6\u4e0e\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4e0d\u540c\u8ba1\u7b97\u73af\u8282\u4e3b\u8981\u7684\u65f6\u95f4\u82b1\u9500\u3002\u56fe\u4e2d\u7684\u6bcf\u4e00\u4e2a\u6761\u5e26\uff0c\u90fd\u4ee3\u8868\u7740\u4e00\u4e2a\u5206\u5e03\u5f0f\u4efb\u52a1\uff0c\u6761\u5e26\u7531\u4e0d\u540c\u7684\u989c\u8272\u6784\u6210\u3002\u5176\u4e2d\u4e0d\u540c\u989c\u8272\u7684\u77e9\u5f62\uff0c\u4ee3\u8868\u4e0d\u540c\u73af\u8282\u7684\u8ba1\u7b97\u65f6\u95f4\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630561\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5728\u7406\u60f3\u60c5\u51b5\u4e0b\uff0cSpark\u4efb\u52a1\u7684\u65f6\u95f4\u6761\u5e26\uff08Timeline\uff09\u5e94\u4ee5\u7eff\u8272\u90e8\u5206\uff08Executor Computing Time\uff09\u4e3a\u4e3b\uff0c\u8fd9\u8868\u660e\u5927\u90e8\u5206\u65f6\u95f4\u90fd\u7528\u4e8e\u6267\u884c\u5b9e\u9645\u7684\u8ba1\u7b97\u903b\u8f91\uff0c\u800c\u7cfb\u7edf\u5f00\u9500\uff08\u5982\u8c03\u5ea6\u3001I\/O\u3001Shuffle \u7b49\uff09\u88ab\u6709\u6548\u63a7\u5236\u5728\u8f83\u4f4e\u6c34\u5e73\u3002<\/p>\n<p>\u7136\u800c\uff0c\u5b9e\u9645\u60c5\u51b5\u5f80\u5f80\u66f4\u4e3a\u590d\u6742\u3002\u4f60\u53ef\u80fd\u4f1a\u89c2\u5bdf\u5230\uff1a<\/p>\n<ul>\n<li>\u6df1\u84dd\u8272\u90e8\u5206\uff08Scheduler Delay\uff09\u5360\u6bd4\u8fc7\u9ad8\uff1a\u8bf4\u660e\u4efb\u52a1\u5728\u7b49\u5f85\u8d44\u6e90\u8c03\u5ea6\u4e0a\u8017\u8d39\u4e86\u5927\u91cf\u65f6\u95f4\uff1b<\/li>\n<li>\u9ec4\u8272\uff08Shuffle Write Time\uff09\u548c\u6a59\u8272\uff08Shuffle Read Time\uff09\u663e\u8457\u81a8\u80c0\uff1a\u8868\u660e Shuffle \u9636\u6bb5\u6210\u4e3a\u6027\u80fd\u74f6\u9888\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u73b0\u8c61\u8bf4\u660e\uff1a\u6027\u80fd\u74f6\u9888\u5e76\u4e0d\u5728\u8ba1\u7b97\u672c\u8eab\uff0c\u800c\u662f\u51fa\u5728\u8c03\u5ea6\u6216\u6570\u636e\u4ea4\u6362\u73af\u8282\u3002<\/p>\n<p><strong>\u5982\u4f55\u9488\u5bf9\u6027\u4f18\u5316\uff1f<\/strong><\/p>\n<p><strong>1. \u9488\u5bf9\u8c03\u5ea6\u5ef6\u8fdf\u9ad8\uff08Scheduler Delay \u5927\uff09<\/strong><\/p>\n<p>\u53ef\u53c2\u8003\u4ee5\u4e0b\u7ecf\u9a8c\u516c\u5f0f\u8fdb\u884c\u8d44\u6e90\u914d\u7f6e\u8c03\u6574\uff1aDP\u223cMCPD\u223cCM<\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>DD \uff1a\u6570\u636e\u96c6\u5927\u5c0f\uff1b<\/li>\n<li>PP \uff1a\u5e76\u884c\u5ea6\uff08Partition \u6570\u91cf\uff09\uff1b<\/li>\n<li>MM \uff1a\u6bcf\u4e2aExecutor \u7684\u5185\u5b58\uff1b<\/li>\n<li>CC \uff1a\u6bcf\u4e2aExecutor\u7684CPU\u6838\u6570\uff1b<\/li>\n<\/ul>\n<p>\u516c\u5f0f\u542b\u4e49\uff1a\u6bcf\u4e2a\u4efb\u52a1\u5904\u7406\u7684\u6570\u636e\u91cf\uff08 D\/PD\/P \uff09\u5e94\u4e0e\u5355\u4e2a\u4efb\u52a1\u53ef\u4f7f\u7528\u7684\u8ba1\u7b97\u8d44\u6e90\uff08 M\/CM\/C\uff0c\u5373\u5355\u4f4dCPU\u6838\u5bf9\u5e94\u7684\u5185\u5b58\uff09\u5904\u4e8e\u540c\u4e00\u6570\u91cf\u7ea7\u3002<\/p>\n<p>\u82e5D\/PD\/P\u8fdc\u5927\u4e8eM\/CM\/C\uff0c\u8bf4\u660e\u4efb\u52a1\u8fc7\u91cd\u6216\u8d44\u6e90\u4e0d\u8db3\uff0c\u5bb9\u6613\u5bfc\u81f4\u8c03\u5ea6\u6392\u961f\uff1b\u53cd\u4e4b\u5219\u53ef\u80fd\u8d44\u6e90\u6d6a\u8d39\u3002\u901a\u8fc7\u5408\u7406\u8c03\u6574\u5e76\u884c\u5ea6PP \u3001Executor \u5185\u5b58MM\u548cCPU\u6838\u6570CC\u53ef\u6709\u6548\u964d\u4f4e\u8c03\u5ea6\u5f00\u9500\u3002<\/p>\n<p><strong>2. \u9488\u5bf9 Shuffle \u8d1f\u8f7d\u91cd\uff08Shuffle Read\/Write \u65f6\u95f4\u957f\uff09<\/strong><\/p>\n<p>\u5f53\u9ec4\u8272\u548c\u6a59\u8272\u533a\u57df\u5360\u6bd4\u8fc7\u5927\u65f6\uff0c\u8bf4\u660e\u4efb\u52a1\u5b58\u5728\u5927\u91cf\u8de8\u8282\u70b9\u6570\u636e\u4ea4\u6362\u3002\u6b64\u65f6\u5e94\u8003\u8651\uff1a<\/p>\n<ul>\n<li>\u662f\u5426\u53ef\u4ee5\u4f7f\u7528Broadcast Join\uff1f<\/li>\n<li>\u82e5\u5176\u4e2d\u4e00\u5f20\u8868\u8f83\u5c0f\uff08\u901a\u5e38&lt;100MB\uff09\uff0c\u53ef\u5c06\u5176\u5e7f\u64ad\u5230\u5404\u8282\u70b9\uff0c\u4ece\u800c\u5b8c\u5168\u907f\u514dShuffle\u3002<\/li>\n<li>\u5176\u4ed6\u4f18\u5316\u624b\u6bb5\u5305\u62ec\uff1a<\/li>\n<li>\u5408\u7406\u8bbe\u7f6espark.sql.adaptive.enabled\u542f\u7528AQE\u81ea\u52a8\u5408\u5e76\u5c0f\u5206\u533a\uff1b<\/li>\n<li>\u8c03\u6574spark.sql.shuffle.partitions\u907f\u514d\u8fc7\u591a\u5c0f\u6587\u4ef6\uff1b<\/li>\n<li>\u4f7f\u7528repartition\u6216coalesce\u4f18\u5316\u6570\u636e\u5206\u5e03\u3002<\/li>\n<\/ul>\n<h4>Task Metrics<\/h4>\n<p>Task Metrics\uff08\u4efb\u52a1\u6307\u6807\uff09\u662fSpark\u5728\u6bcf\u4e2aTask\u6267\u884c\u5b8c\u6210\u540e\u6536\u96c6\u7684\u4e00\u7ec4\u7ec6\u7c92\u5ea6\u6027\u80fd\u4e0e\u8d44\u6e90\u4f7f\u7528\u6570\u636e\uff0c\u5168\u9762\u523b\u753b\u4e86\u8be5Task\u7684\u6267\u884c\u884c\u4e3a\u3002\u8fd9\u4e9b\u6307\u6807\u6784\u6210\u4e86Spark UI\uff08\u5c24\u5176\u662f Stages \u9875\u9762\uff09\u4e2d\u5404\u7c7b\u53ef\u89c6\u5316\u5206\u6790\uff08\u5982\u65f6\u95f4\u6761\u5e26\u3001Shuffle \u7edf\u8ba1\u3001\u5185\u5b58\u4f7f\u7528\u7b49\uff09\u7684\u5e95\u5c42\u6570\u636e\u57fa\u7840\uff0c\u4e5f\u662f\u8fdb\u884c\u6027\u80fd\u8c03\u4f18\u3001\u6545\u969c\u6392\u67e5\u548c\u8d44\u6e90\u89c4\u5212\u7684\u6838\u5fc3\u4f9d\u636e\u3002<\/p>\n<p>\u5728\u5206\u6790\u65f6\uff0c\u901a\u5e38\u5148\u4ece\u7c97\u7c92\u5ea6\u7684\u201cSummary Metrics\u201d\u5165\u624b\u2014\u2014\u5b83\u662f\u5bf9\u6240\u6709Tasks\u6267\u884c\u6307\u6807\u7684\u7edf\u8ba1\u6c47\u603b\uff0c\u80fd\u591f\u5feb\u901f\u53cd\u6620\u6574\u4e2aStage\u7684\u6574\u4f53\u8868\u73b0\uff0c\u968f\u540e\u518d\u6df1\u5165\u5230\u7ec6\u7c92\u5ea6\u7684\u201cTasks\u201d\u5217\u8868\uff0c\u9010\u4e2a\u6392\u67e5\u5f02\u5e38\u6216\u4f4e\u6548\u7684Task\uff0c\u5b9e\u73b0\u7cbe\u51c6\u5b9a\u4f4d\u4e0e\u4f18\u5316\u3002<\/p>\n<h4>Summary Metrics<\/h4>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630562\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u70b9\u51fbSelect All\uff0c\u4f7f\u5f53\u524d\u6240\u6709\u5ea6\u91cf\u503c\u90fd\u751f\u6548\uff0c\u9996\u5148\u628aMetrics\u6574\u7406\u5230\u8868\u683c\u4e2d\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630563\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u7279\u522b\u503c\u5f97\u5173\u6ce8\u7684\u662fSpill (Memory) \u548cSpill (Disk) \u8fd9\u4e24\u4e2a\u6307\u6807\u3002\u5728Spark\u6267\u884c\u8fc7\u7a0b\u4e2d\u5f53\u7528\u4e8e\u7f13\u5b58\u4e2d\u95f4\u6570\u636e\u7684\u5185\u5b58\u7ed3\u6784\uff08\u5982PartitionedPairBuffer\u6216AppendOnlyMap\uff09\u8fbe\u5230\u5bb9\u91cf\u4e0a\u9650\u65f6\uff0c\u7cfb\u7edf\u4f1a\u5c06\u90e8\u5206\u6570\u636e\u201c\u6ea2\u51fa\u201d\uff08spill\uff09\u5230\u78c1\u76d8\u4ee5\u91ca\u653e\u5185\u5b58\u7a7a\u95f4\u3002<\/p>\n<ul>\n<li>Spill (Memory) \u8868\u793a\u8fd9\u4e9b\u88ab\u6ea2\u51fa\u7684\u6570\u636e\u5728\u5185\u5b58\u4e2d\u7684\u539f\u59cb\u5927\u5c0f\uff08\u5373\u672a\u843d\u76d8\u524d\u7684\u5b57\u8282\u6570\uff09\uff1b<\/li>\n<li>Spill (Disk) \u5219\u8868\u793a\u8fd9\u4e9b\u6570\u636e\u5b9e\u9645\u5199\u5165\u78c1\u76d8\u540e\u7684\u5927\u5c0f\uff08\u901a\u5e38\u7ecf\u8fc7\u5e8f\u5217\u5316\u548c\u538b\u7f29\uff09\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u8ba1\u7b97\u4e24\u8005\u7684\u6bd4\u503c\uff1a<\/p>\n<p>Explosion Ratio\u2248Spill (Memory)Spill (Disk)Explosion Ratio\u2248Spill (Disk)Spill (Memory)<\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a\u8fd1\u4f3c\u7684 \u201c\u6570\u636e\u81a8\u80c0\u7cfb\u6570\u201d\uff08Explosion Ratio\uff09\u3002\u8be5\u7cfb\u6570\u53cd\u6620\u4e86\uff1a\u5355\u4f4d\u78c1\u76d8\u5b58\u50a8\u6240\u5bf9\u5e94\u7684\u5b9e\u9645\u5185\u5b58\u5360\u7528\u3002\u6709\u4e86\u8fd9\u4e2a\u6bd4\u7387\uff0c\u5f53\u6211\u4eec\u77e5\u9053\u67d0\u4efd\u4e2d\u95f4\u6570\u636e\u5728\u78c1\u76d8\u4e0a\u5360\u7528\u4e86\u591a\u5c11\u7a7a\u95f4\u65f6\uff0c\u5c31\u80fd\u53cd\u63a8\u51fa\u5b83\u5728\u5185\u5b58\u4e2d\u5927\u6982\u4f1a\u6d88\u8017\u591a\u5c11\u8d44\u6e90\u3002\u8fd9\u4e3a\u7cbe\u51c6\u8bc4\u4f30\u5185\u5b58\u9700\u6c42\u3001\u9884\u5224OOM\u98ce\u9669\u3001\u5408\u7406\u914d\u7f6eExecutor\u5185\u5b58\u63d0\u4f9b\u4e86\u91cd\u8981\u4f9d\u636e\u3002<\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u82e5Explosion Ratio = 3.0\uff0c\u610f\u5473\u7740\u78c1\u76d8\u4e0a1GB\u7684spill\u6570\u636e\uff0c\u5728\u5185\u5b58\u4e2d\u5b9e\u9645\u5360\u7528\u4e86\u7ea63GB\uff1b<\/li>\n<li>\u82e5\u8be5\u503c\u8fdc\u5927\u4e8e1\uff0c\u8bf4\u660e\u6570\u636e\u5728\u5185\u5b58\u4e2d\u9ad8\u5ea6\u201c\u81a8\u80c0\u201d\uff0c\u9700\u8b66\u60d5\u5185\u5b58\u538b\u529b\uff1b<\/li>\n<li>\u82e5\u63a5\u8fd11\uff0c\u5219\u8868\u660e\u5e8f\u5217\u5316\/\u538b\u7f29\u6548\u7387\u9ad8\uff0c\u5185\u5b58\u4e0e\u78c1\u76d8\u5360\u7528\u63a5\u8fd1\u3002<\/li>\n<\/ul>\n<h4>Tasks<\/h4>\n<p>\u5728\u4ecb\u7ecd\u5b8c\u7c97\u7c92\u5ea6\u7684Summary Metrics\u540e\uff0c\u6211\u4eec\u8fdb\u4e00\u6b65\u6df1\u5165\u5230\u66f4\u7ec6\u7c92\u5ea6\u7684Tasks\u5217\u8868\u3002\u5b9e\u9645\u4e0a\uff0cTasks\u8868\u683c\u4e2d\u5c55\u793a\u7684\u8bb8\u591a\u6307\u6807\uff08\u5982 Duration\u3001Shuffle Read Size\u3001GC Time \u7b49\uff09\u4e0eSummary Metrics\u4e2d\u7684\u5185\u5bb9\u9ad8\u5ea6\u4e00\u81f4\uff0c\u5176\u542b\u4e49\u5b8c\u5168\u76f8\u540c\uff0c\u56e0\u6b64\u65e0\u9700\u91cd\u590d\u89e3\u91ca\u2014\u2014\u4f60\u53ef\u4ee5\u76f4\u63a5\u53c2\u7167\u524d\u6587\u5bf9Summary Metrics\u7684\u8bf4\u660e\u6765\u7406\u89e3\u8fd9\u4e9b\u5b57\u6bb5\u3002<\/p>\n<p>\u4e24\u8005\u7684\u6838\u5fc3\u533a\u522b\u5728\u4e8e\uff1a<\/p>\n<ul>\n<li>Summary Metrics\u63d0\u4f9b\u7684\u662f\u5bf9\u6240\u6709Tasks\u7684\u805a\u5408\u7edf\u8ba1\uff08\u4f8b\u5982\u6700\u5c0f\u503c\u3001\u4e2d\u4f4d\u6570\u3001\u6700\u5927\u503c\u7b49\uff09\uff0c\u7528\u4e8e\u628a\u63e1\u6574\u4f53\u8d8b\u52bf\uff1b<\/li>\n<li>Tasks\u5217\u8868 \u5219\u9010\u884c\u5c55\u793a\u6bcf\u4e2aTask\u7684\u5177\u4f53\u6307\u6807\u503c\uff0c\u5448\u73b0\u4e2a\u4f53\u884c\u4e3a\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u79cd\u7ec6\u7c92\u5ea6\u89c6\u56fe\u7279\u522b\u9002\u7528\u4e8e\u5b9a\u4f4d\u5f02\u5e38\u4efb\u52a1\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u6267\u884c\u65f6\u95f4\u663e\u8457\u504f\u957f\u7684Task;<\/li>\n<li>Shuffle \u8bfb\u53d6\u6570\u636e\u91cf\u5f02\u5e38\u9ad8\u7684Task;<\/li>\n<li>\u53d1\u751f\u78c1\u76d8 Spill \u6216 GC \u8017\u65f6\u8fc7\u957f\u7684Task\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u5bf9\u6bd4\u5355\u4e2aTask\u4e0e\u6574\u4f53\u7edf\u8ba1\u7684\u504f\u5dee\uff0c\u53ef\u4ee5\u5feb\u901f\u8bc6\u522b\u6027\u80fd\u74f6\u9888\u6216\u6570\u636e\u503e\u659c\u95ee\u9898\uff0c\u4ece\u800c\u5b9e\u73b0\u7cbe\u51c6\u7684\u6545\u969c\u6392\u67e5\u4e0e\u8c03\u4f18\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630564\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u65b0\u589e\u7684\u6307\u6807\u5e76\u4e0d\u591a\uff0c\u5176\u4e2d\u6700\u503c\u5f97\u5173\u6ce8\u7684\u662f <strong>Locality Level\uff08\u672c\u5730\u6027\u7ea7\u522b\uff09<\/strong> \u3002<\/p>\n<p>\u6b63\u5982\u8c03\u5ea6\u673a\u5236\u4e2d\u6240\u8ba8\u8bba\u7684\uff0c\u6bcf\u4e2aTask\u5728\u63d0\u4ea4\u65f6\u90fd\u4f1a\u643a\u5e26\u4e00\u4e2a<strong>\u672c\u5730\u6027\u504f\u597d\uff08locality preference\uff09<\/strong> \uff0c\u7528\u4e8e\u6307\u793a\u5b83\u5e0c\u671b\u5728\u54ea\u4e2a\u5c42\u7ea7\u4e0a\u8bbf\u95ee\u5176\u8f93\u5165\u6570\u636e\u2014\u2014\u4f8b\u5982\u662f\u5426\u4f18\u5148\u5728\u6570\u636e\u6240\u5728\u7684\u8282\u70b9\u3001\u673a\u67b6\u6216\u4efb\u610f\u8282\u70b9\u4e0a\u6267\u884c\u3002Spark\u8c03\u5ea6\u5668\u4f1a\u5c3d\u53ef\u80fd\u4f9d\u636e\u8fd9\u4e00\u504f\u597d\uff0c\u5c06 Task \u5206\u914d\u5230\u9760\u8fd1\u5176\u6240\u9700\u6570\u636e\u7684 Executor\u4e0a\u3002<\/p>\n<p>\u8fd9\u4e00\u673a\u5236\u7684\u6838\u5fc3\u76ee\u6807\uff0c\u6b63\u662f\u8df5\u884cSpark\u7684\u6838\u5fc3\u8bbe\u8ba1\u539f\u5219\uff1a\u201c<strong>\u6570\u636e\u4e0d\u52a8\uff0c\u4ee3\u7801\u52a8\u201d<\/strong> \u3002\u901a\u8fc7\u5c06\u8f7b\u91cf\u7ea7\u7684\u8ba1\u7b97\u903b\u8f91\u79fb\u52a8\u5230\u6570\u636e\u6240\u5728\u7684\u4f4d\u7f6e\uff0c\u800c\u975e\u5c06\u5927\u91cf\u6570\u636e\u8de8\u7f51\u7edc\u4f20\u8f93\u5230\u8ba1\u7b97\u8282\u70b9\uff0c\u4ece\u800c<strong>\u663e\u8457\u51cf\u5c11\u7f51\u7edc I\/O \u5f00\u9500\uff0c\u63d0\u5347\u4efb\u52a1\u6267\u884c\u6548\u7387<\/strong>\u3002\u56e0\u6b64\uff0cLocality Level\u4e0d\u4ec5\u53cd\u6620\u4e86\u4efb\u52a1\u8c03\u5ea6\u7684\u4eb2\u548c\u6027\uff0c\u4e5f\u662f\u8bc4\u4f30\u6570\u636e\u5c40\u90e8\u6027\u4f18\u5316\u6548\u679c\u7684\u91cd\u8981\u4f9d\u636e\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630565\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<h2>\u56db\u3001\u5b9e\u6218\u73af\u8282<\/h2>\n<p>\u8fd9\u91cc\u6211\u4eec\u9009\u4e24\u4e2a\u5178\u578b\u7684\u4f8b\u5b50\u8fdb\u884c\u5206\u6790\u8c03\u4f18\uff1a<\/p>\n<h3>\u6848\u4f8b\u4e00\uff08scan\u8868\u6162\u548c\u5185\u5b58\u95ee\u9898\uff09<\/h3>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630566\" alt=\"\" title=\"\" loading=\"lazy\"> \u5982\u4e0a\u56fe\u6240\u793a\uff0c\u6211\u4eec\u9009\u62e9\u8fd0\u884c\u65f6\u95f4\u6700\u957f\u7684\u4e00\u4e2aStage\u8fdb\u884c\u5177\u4f53\u5206\u6790\u8c03\u4f18\uff0c\u70b9\u8fdb\u53bb\u8fdb\u5165\u8be5Stage\u5185\u90e8\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630567\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u89c2\u5bdf\u5982\u4e0a\u6307\u6807\u4f1a\u53d1\u73b0\u4e24\u4e2a\u95ee\u9898\u70b9\uff1a<\/p>\n<p>1.\u8fd9\u91cc\u5355\u4e2aTask\u5904\u7406\u7684\u6570\u636e\u91cf\u4e3a25MB\u5de6\u53f3\uff0c\u6b63\u5e38\u6765\u8bf4\uff0c\u4e00\u4e2aTask\u5904\u7406\u7684\u6570\u636e\u91cf\u4e3a128-256MB\u8f83\u4e3a\u5408\u7406\uff0c\u8fd9\u662f\u7531\u4e8e\u539f\u59cb\u8868\u7684\u6570\u636e\u91cf\u5927\uff0c\u5c0f\u6587\u4ef6\u592a\u591a\uff0c\u5bfc\u81f4\u5206\u914d\u7684Task\u6570\u636e\u91cf\u8fc7\u5927\u3002<\/p>\n<p>2.\u5e76\u4e14\u7531\u7b2c\u4e8c\u4e2a\u56fe\u53ef\u77e5\u5931\u8d25\u91cd\u8bd5\u7684Task\u7684\u8c03\u5ea6\u7b49\u5f85\u65f6\u95f4\u8fc7\u957f\uff0c\u8fd9\u662f\u7531\u4e8eTask\u6570\u636e\u91cf\u8fc7\u591a\uff0c\u800c\u5b9e\u9645\u5e76\u53d1\u53ea\u67091000\uff0c\u5bfc\u81f4\u90e8\u5206Task\u8c03\u5ea6\u65f6\u95f4\u592a\u957f\u5bfc\u81f4\u3002<\/p>\n<p>\u5bf9\u4e8e\u4e0a\u8ff0\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u8868\u7684\u5207\u7247\u5927\u5c0f\u7f13\u89e3\u95ee\u9898\uff1a<\/p>\n<p>set spark.sql.odps.split.size.du\/_shucang.dws\/_traffic\/_algo\/_search\/_keyword\/_stats_di=512MB\u6dfb\u52a0\u5982\u4e0a\u53c2\u6570\u540e\u89c2\u5bdf\u6548\u679c\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630568\" alt=\"\" title=\"\" loading=\"lazy\"> \u6211\u4eec\u7b2c\u4e00\u6b21\u5c06\u5207\u7247\u5927\u5c0f\u63a7\u5236\u5230512MB\u6765\u51cf\u5c0f\u5b9e\u9645Task\u6570\uff0c\u53ef\u4ee5\u770b\u5230\u76f8\u5bf9\u4e8e\u4e0a\u6b21\u8be5Stage\u4f1a\u5feb20min\uff0c\u8fd9\u91cc\u6211\u4eec\u8fd8\u53ef\u4ee5\u7ee7\u7eed\u589e\u5927\u8868\u7684\u5207\u7247\u6765\u8fed\u4ee3\u770b\u6548\u679c\uff0c\u611f\u5174\u8da3\u7684\u53ef\u4ee5\u81ea\u5df1\u5c1d\u8bd5\u3002<\/p>\n<p>\u6211\u4eec\u5728\u4ece\u53e6\u5916\u4e00\u4e2a\u89d2\u5ea6\u770b\u5f85\u95ee\u9898\uff0c\u5f53\u6211\u4eec\u8bd5\u56fe\u51cf\u5c0f\u5206\u914d\u7ed9Stage\u7684Task\u6570\u91cf\u65f6\uff0c\u90a3\u4e48Task\u7684\u5b9e\u9645\u5904\u7406\u6570\u636e\u91cf\u5c31\u4f1a\u589e\u5927\uff0c\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u51cf\u5c0f&#8221;spark.executor.cores&#8221;\u7684\u6838\u6570\u6765\u9690\u5f62\u7684\u589e\u5927Task\u7684\u5185\u5b58\u6216\u8005\u8c03\u5927spark.executor.memory\u7684\u5185\u5b58\u6765\u663e\u6027\u7684\u589e\u5927Task\u7684\u5185\u5b58\uff0c\u8fd9\u91cc\u7531\u4e8eTask\u7684\u91cf\u7ea7\u592a\u591a\uff0c\u6211\u4eec\u9009\u62e9\u589e\u5927spark.executor.memory\u6765\u8fdb\u884c\u4f18\u5316\uff0c\u6548\u679c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630569\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u8fd9\u91cc\u7531\u4e8e\u672c\u8eabTask\u5904\u7406\u7684\u6570\u636e\u91cf\u662f\u5f88\u5c0f\u7684\uff0c\u6240\u4ee5\u65e0\u6cd5\u5f88\u663e\u8457\u7684\u770b\u5230\u6548\u679c\uff0c\u82e5\u662f\u51fa\u73b0\u4e0b\u56fe\u6240\u793a\u7684\u60c5\u51b5\uff0c\u8c03\u5927\u5185\u5b58\u6548\u679c\u4f1a\u66f4\u663e\u8457\u4e9b\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630570\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u603b\u7ed3\uff1a\u5728Spark\u4e2d\uff0c\u5f53\u8bfb\u8868\u65f6\u7531\u4e8e\u6570\u636e\u91cf\u5927\uff0c\u800c\u6b64\u65f6Task\u5904\u7406\u7684\u6570\u636e\u91cf\u53c8\u8fc7\u5c0f\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7set spark.sql.odps. split.size.xxx=xxMB\u6765\u51cf\u5c0ftask\u6570\u91cf\uff0c\u800c\u901a\u8fc7Spill\u548cSpill Memory Disk\u6765\u89c2\u5bdf\u5176\u662f\u5426\u9700\u8981\u589e\u5927\u5185\u5b58\u6216\u8005\u5b9e\u9645\u5e76\u53d1\u91cf\u3002<\/p>\n<h3>\u6848\u4f8b\u4e8c\uff08shuffle\u4e4b\u540e\u5e76\u884c\u5ea6\u4e0d\u8db3\uff09<\/h3>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630571\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u8be5case\u6253\u4e0d\u5f00\u4e86\u4e4b\u524d\u8bb0\u5f55\u7684\uff0c\u968f\u4fbf\u62ff\u4e86\u4e00\u4e2a\u8fd8\u662f\u8001\u6837\u5b50\u964d\u5e8f\u67e5\u770b\u6700\u5927\u7684\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630572\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5206\u6790\u662f\u5728Shuffle\u9636\u6bb5\u5e76\u884c\u5ea6\u63d0\u5347\u4e0d\u4e86\u3002<\/p>\n<p>\u603b\u7ed3\uff1a\u5728Spark\u4e2d\uff0cJoin\u3001Group\u90fd\u4f1a\u5728Shuffle\u9636\u6bb5\u4ea7\u751f\u5e76\u884c\u5ea6\uff0c\u8fd9\u4e2aShuffle\u662f\u4e00\u4e2a\u5f88\u5927\u7684\u6c60\u5b50\uff0c\u53ef\u4ee5\u5229\u7528\u4e07\u80fd\u53c2\u6570\u8fdb\u884c\u589e\u52a0\u5e76\u884c\u5ea6\u3002<\/p>\n<ul>\n<li>\u8bfb\u53d6Shuffle\u6570\u636e\u7684\u76ee\u6807\u5927\u5c0f \uff1b<\/li>\n<li>\u63d0\u9ad8AQE shuffle\u9ed8\u8ba4\u5206\u533a\u6570\uff1b<\/li>\n<\/ul>\n<p>&#8220;spark.sql.adaptive.advisoryPartitionSizeInBytes&#8221;:&#8221;64MB&#8221;;<\/p>\n<p>&#8220;spark.sql.adaptive.coalescePartitions.initialPartitionNum&#8221;:&#8221;1000&#8243;.<\/p>\n<p>\u6ce8\u610f\uff1a\u6709\u4e9b\u65f6\u5019\u4f1a\u53d1\u73b0\u589e\u52a0\u4e86\u8fd8\u662f\u6ca1\u53d8\uff0c\u90a3\u662f\u56e0\u4e3a\u5207\u5206\u8fd8\u662f\u592a\u5927\u30021,2\u5207\u5206\uff0c3\u8c03\u6574\u9650\u5236\u3002<\/p>\n<p>&#8220;spark.sql.adaptive.advisoryPartitionSizeInBytes&#8221;:&#8221;8KB&#8221;,<\/p>\n<p>&#8220;spark.sql.adaptive.coalescePartitions.minPartitionSize&#8221;:&#8221;8KB&#8221;<\/p>\n<p>&#8220;spark.sql.adaptive.coalescePartitions.initialPartitionNum&#8221;:&#8221;3000&#8243;.<\/p>\n<h2>\u4e94\u3001\u603b\u7ed3<\/h2>\n<p>\u603b\u7684\u6765\u8bf4\uff0c\u6211\u4eec\u901a\u8fc7Spark UI\u754c\u9762\u53bb\u4f18\u5316\u4ea6\u6216\u8005\u53bb\u5b9a\u4f4d\u9519\u8bef\uff0c\u90fd\u79bb\u4e0d\u5f00\u5185\u5b58\u4e0e\u5e76\u884c\u5ea6\u8fd9\u4e24\u4e2a\u5927\u7684\u7ef4\u5ea6\uff0c\u901a\u8fc7\u76f8\u5e94\u7684Summary Metrics\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u597d\u7684\u5b9a\u4f4d\u5230\u95ee\u9898\u6240\u5728\uff0c\u662f\u5185\u5b58\u8fc7\u5c0f\uff0c\u8fd8\u662f\u5e76\u884c\u5ea6\u4e0d\u591f\uff0c\u4e8b\u5b9e\u4e0a\uff0c\u5185\u5b58\u4e0e\u5e76\u884c\u5ea6\u5e76\u4e0d\u662f\u72ec\u7acb\u7684\uff0c\u800c\u662f\u76f8\u4e92\u5f71\u54cd\uff0c\u76f8\u4e92\u5236\u7ea6\u7684\u4e00\u79cd\u5173\u7cfb\uff0c\u5e76\u884c\u5ea6\u51b3\u5b9a\u4e86\u201c\u6709\u591a\u5c11\u4e2aTask\u540c\u65f6\u8fd0\u884c\u201d\uff0c\u800c\u5185\u5b58\u51b3\u5b9a\u4e86\u201c\u6bcf\u4e2a Task\u80fd\u5206\u5230\u591a\u5c11\u8d44\u6e90\u201d\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047630573\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u5f53\u5e76\u884c\u5ea6\u4e00\u5b9a\u7684\u65f6\u5019\uff0c\u5f53\u6211\u4eec\u8bd5\u56fe\u901a\u8fc7\u8c03\u5927\u5185\u5b58\u6765\u89e3\u51b3\u95ee\u9898\u800c\u95ee\u9898\u5e76\u672a\u5f97\u5230\u89e3\u51b3\u7684\u65f6\u5019\uff0c\u5b9e\u9645\u4e0a\uff0c\u5f53\u5185\u5b58\u53d8\u5927\u800c\u5b9e\u9645\u5e76\u884c\u5ea6\u56fa\u5b9a\u65f6\uff0c\u6bcf\u4e2aTask\u6240\u5206\u914d\u7684\u5185\u5b58\u5c31\u4f1a\u589e\u5927\uff0c\u6240\u5e26\u6765\u7684\u989d\u5916\u5f00\u9500\u5c31\u662f\u505a\u5185\u5b58\u7a7f\u900f\u7684\u65f6\u95f4\u589e\u52a0\uff0c\u4ece\u800cGC\u65f6\u95f4\u589e\u5927\u3002<\/p>\n<p>\u5f53\u5185\u5b58\u4e00\u5b9a\u65f6\uff0c\u6211\u4eec\u53bb\u8c03\u5927\u5e76\u884c\u5ea6\u6216\u8005\u589e\u5927\u6838\u6570\u65f6\uff0c\u6bcf\u4e2aTask\u6240\u5206\u914d\u7684\u5185\u5b58\u5c31\u4f1a\u53d8\u5c0f\uff0c\u5c31\u4f1a\u5bb9\u6613\u51fa\u73b0\u5185\u5b58\u6ea2\u51fa\u7684\u98ce\u9669\u3002<\/p>\n<p>\u5bf9\u4e8e\u4e00\u4e2a\u4efb\u52a1\uff0c\u90a3\u6211\u4eec\u5982\u4f55\u53bb\u5408\u7406\u7684\u914d\u7f6e\u5176\u5e76\u884c\u5ea6\u548c\u5185\u5b58\uff0c\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u770b\u4e00\u4e2a\u4efb\u52a1\u8017\u65f6\u6700\u957f\u7684\u7684\u51e0\u4e2aStage\uff0c\u5047\u8bbe\u67d0\u4e2aStage\u7684\u5e76\u884c\u5ea6\u4e3a5000\uff0c\u800c\u6b64\u65f6\u6240\u7ed9\u7684\u53c2\u6570\u4e3aexecutor.memory=12g,executor.cores=4,spark.dynamic<\/p>\n<p>Allocation.maxExecutors=250\uff0c\u6b64\u65f6\u96c6\u7fa4\u6700\u5927\u5e76\u884c\u5ea6250*4=1000\uff0c\u4e5f\u5c31\u662f\u8bf4\u5f53\u524d\u4efb\u52a1\u9700\u8981\u52065\u6279\u6267\u884c\uff0c\u6b64\u65f6\u96c6\u7fa4\u4e2d\u4e00\u4e2aTask\u5185\u5b58\u4e3a3g\uff0c\u6309\u7167\u7ecf\u9a8c\u8bba\uff0c\u6bcfCore\u5bf9\u5e944\uff5e8GB\u5185\u5b58\u662f\u5408\u7406\u7684\uff0c\u800c\u5904\u7406\u7684\u603b\u5e76\u53d1\u5ea6\u901a\u5e38\u4f1a\u662f\u5b9e\u9645\u5e76\u53d1\u5ea6\u76842~3\u500d\u4e3a\u5408\u7406\uff0c\u56e0\u6b64\uff0c\u6211\u4eec\u5c06\u53c2\u6570\u8bbe\u5b9a\u4e3a executor.memory=16g, executor.cores=6\u6765\u8fdb\u884c\u4e00\u4e2a\u8fed\u4ee3\u4f18\u5316\u3002<\/p>\n<p>\u4e00\u4e2a\u597d\u7684Spark\u4f5c\u4e1a\uff0cTask\u5747\u8861\u3001\u65e0Spill\u3001CPU\u6253\u6ee1\u3001\u5185\u5b58\u591f\u7528\uff0c\u8fd9\u662f\u6211\u4eec\u53bb\u505a\u4f18\u5316\u7684\u4e00\u4e2a\u7406\u60f3\u72b6\u6001\uff01<\/p>\n<h2>\u5f80\u671f\u56de\u987e<\/h2>\n<p>1.Sentinel Java\u5ba2\u6237\u7aef\u9650\u6d41\u539f\u7406\u89e3\u6790\uff5c\u5f97\u7269\u6280\u672f<\/p>\n<p>2.\u793e\u533a\u63a8\u8350\u91cd\u6392\u6280\u672f\uff1a\u53cc\u9636\u6bb5\u6846\u67b6\u7684\u5b9e\u8df5\u4e0e\u6f14\u8fdb\uff5c\u5f97\u7269\u6280\u672f<\/p>\n<p>3.Flink ClickHouse 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href=\"https:\/\/segmentfault.com\/a\/1190000047630540\">https:\/\/segmentfault.com\/a\/1190000047630540<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u6982\u8ff0 Spark UI\u662fApache Spark\u5185\u7f6e\u7684Web\u76d1\u63a7\u754c\u9762\uff0c\u4e3a\u5f00\u53d1\u8005\u548c\u8fd0\u7ef4\u4eba\u5458\u63d0\u4f9b\u5bf9Spark\u5e94 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