{"id":117950,"date":"2019-05-22T12:10:25","date_gmt":"2019-05-22T04:10:25","guid":{"rendered":"http:\/\/www.fagao.me\/?p=117950"},"modified":"2019-05-22T12:10:25","modified_gmt":"2019-05-22T04:10:25","slug":"%e5%9f%ba%e4%ba%8eapache-flink%e7%9a%84%e5%ae%9e%e6%97%b6%e8%ae%a1%e7%ae%97%e5%bc%95%e6%93%8eblink%e5%9c%a8%e9%98%bf%e9%87%8c%e6%90%9c%e7%b4%a2%e4%b8%ad%e7%9a%84%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.fagao.me\/p\/117950.htm","title":{"rendered":"\u57fa\u4e8eApache Flink\u7684\u5b9e\u65f6\u8ba1\u7b97\u5f15\u64ceBlink\u5728\u963f\u91cc\u641c\u7d22\u4e2d\u7684\u5e94\u7528"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.fagao.me\/images\/uploads\/2018_004.jpg\" alt=\"\"><\/p>\n<div class=\"focusup\"><\/div>\n<p><span><strong>\u672c\u6587\u6539\u7f16\u81ea\u963f\u91cc\u5df4\u5df4\u641c\u7d22\u57fa\u7840\u67b6\u6784\u56e2\u961f\u9ad8\u7ea7\u603b\u76d1Xiaowei Jiang\u5728Flink Forward 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Artisans\u548cFlink\u793e\u533a\u5408\u4f5c\uff0c\u5c06\u8fd9\u4e9b\u66f4\u6539\u8d21\u732e\u7ed9Flink\u793e\u533a\u3002<strong>\u4e00\u65e6\u6210\u529f\u5730\u5c06\u6211\u4eec\u7684\u4fee\u6539\u5408\u5e76\u5230\u5f00\u6e90\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u4f1a\u5c06\u73b0\u6709\u7cfb\u7edf\u4eceBlink\u8f6c\u79fb\u5230Apache Flink\u3002<\/strong><\/p>\n<p>Part 1\uff1a Flink\u5728\u963f\u91cc\u5df4\u5df4\u641c\u7d22\u4e2d\u7684\u5e94\u7528<\/p>\n<p><strong><span>\u6587\u6863\u521b\u5efa<\/span><\/strong><\/p>\n<p>\u4e3a\u7528\u6237\u63d0\u4f9b\u4e16\u754c\u7ea7<a class=\"tag-links\" href=\"https:\/\/www.fagao.me\/p\/t\/121\">\u641c\u7d22\u5f15\u64ce<\/a>\u7684\u7b2c\u4e00\u6b65\u662f\u521b\u5efa\u53ef\u4f9b\u641c\u7d22\u7684\u6587\u6863\u3002\u5728\u963f\u91cc\u5df4\u5df4\u7684\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u6587\u6863\u662f\u7531\u6570\u767e\u4e07\u4e2a\u5546\u54c1\u5217\u8868\u548c\u76f8\u5173\u7684\u5546\u54c1\u6570\u636e\u7ec4\u6210\u3002<\/p>\n<p>\u56e0\u4e3a\u5546\u54c1\u6570\u636e\u5b58\u50a8\u5728\u8bb8\u591a\u4e0d\u540c\u7684\u5730\u65b9\uff0c\u6240\u4ee5\u641c\u7d22\u6587\u6863\u521b\u5efa\u4e5f\u662f\u4e00\u4e2a\u5f88\u5927\u7684\u6311\u6218\uff0c\u641c\u7d22\u57fa\u7840\u67b6\u6784\u56e2\u961f\u5c06\u5546\u54c1\u76f8\u5173\u7684\u6240\u6709\u4fe1\u606f\u6c47\u603b\u5728\u4e00\u8d77\u5e76\u521b\u5efa\u5b8c\u6574\u7684\u641c\u7d22\u6587\u6863\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u6574\u4e2a\u8fc7\u7a0b\u5206\u4e3a3\u4e2a\u9636\u6bb5\uff1a<\/p>\n<ol>\n<li>\n<p>\u5c06\u4e0d\u540c\u6765\u6e90\uff08\u4f8b\u5982MySQL\uff0c\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff09\u7684\u6240\u6709\u5546\u54c1\u6570\u636e\u540c\u6b65\u5230\u4e00\u4e2aHBase\u96c6\u7fa4\u4e2d\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528\u4e1a\u52a1\u903b\u8f91\u5c06\u6765\u81ea\u4e0d\u540c\u8868\u7684\u6570\u636e\u8fde\u63a5\u5728\u4e00\u8d77\uff0c\u4ee5\u521b\u5efa\u6700\u7ec8\u7684\u53ef\u641c\u7d22\u6587\u6863\u3002\u8fd9\u662f\u4e00\u4e2aHBase\u8868\uff0c\u6211\u4eec\u79f0\u4e4b\u4e3a&#8217;Result&#8217;\u8868\u3002<\/p>\n<\/li>\n<li>\n<p>\u5c06\u6b64HBase\u8868\u5bfc\u51fa\u4e3a\u6587\u4ef6\u4f5c\u4e3a\u66f4\u65b0\u96c6\u5408\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u8fd93\u4e2a\u9636\u6bb5\u5b9e\u9645\u4e0a\u662f\u5728\u7ecf\u5178\u7684\u201clambda\u67b6\u6784\u201d\u4e2d\u76842\u4e2a\u4e0d\u540c\u7684pipeline\u4e0a\u8fd0\u884c\uff1a\u5168\u91cf\u6784\u5efapipeline\u548c\u589e\u91cf\u6784\u5efapipeline\u3002<\/p>\n<ul>\n<li>\n<p>\u5728\u5168\u91cf\u6784\u5efapipeline\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u5904\u7406\u6240\u6709\u6570\u636e\u6e90\uff0c\u8fd9\u901a\u5e38\u662f\u4e00\u4e2a\u6279\u5904\u7406\u4f5c\u4e1a\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u589e\u91cf\u6784\u5efapipeline\u4e2d\uff0c\u6211\u4eec\u9700\u8981\u5904\u7406\u5728\u6279\u5904\u7406\u4f5c\u4e1a\u5b8c\u6210\u540e\u53d1\u751f\u7684\u66f4\u65b0\u3002\u4f8b\u5982\uff0c\u5356\u5bb6\u53ef\u80fd\u4fee\u6539\u5546\u54c1\u4ef7\u683c\u6216\u5546\u54c1\u63cf\u8ff0\u4ee5\u53ca\u5e93\u5b58\u91cf\u7684\u53d8\u5316\u3002\u8fd9\u4e9b\u4fe1\u606f\u9700\u8981\u5c3d\u53ef\u80fd\u5feb\u7684\u53cd\u9988\u5728\u641c\u7d22\u7ed3\u679c\u4e2d\u3002\u589e\u91cf\u6784\u5efapipeline\u901a\u5e38\u662f\u4e00\u4e2a\u6d41\u5f0f\u4f5c\u4e1a\u3002<\/p>\n<\/li>\n<\/ul>\n<p><strong><span>\u641c\u7d22\u7b97\u6cd5\u5b9e\u65f6A\/B\u6d4b\u8bd5<\/span><\/strong><\/p>\n<p>\u6211\u4eec\u7684\u5de5\u7a0b\u5e08\u4f1a\u5b9a\u671f\u6d4b\u8bd5\u4e0d\u540c\u7684\u641c\u7d22\u7b97\u6cd5\uff0c\u5e76\u4e14\u9700\u8981\u5c3d\u53ef\u80fd\u5feb\u5730\u8bc4\u4f30\u51fa\u6548\u679c\u3002\u73b0\u5728\u8fd9\u79cd\u8bc4\u4f30\u6bcf\u5929\u8fd0\u884c\u4e00\u6b21\uff0c\u56e0\u4e3a\u60f3\u5b9e\u65f6\u5206\u6790\u6548\u679c\uff0c\u6240\u4ee5\u6211\u4eec\u4f7f\u7528Blink\u6784\u5efa\u4e86\u4e00\u4e2a\u5b9e\u65f6A\/B\u6d4b\u8bd5\u6846\u67b6\u3002<\/p>\n<p>\u5728\u7ebf\u65e5\u5fd7\uff08\u5c55\u793a\uff0c\u70b9\u51fb\uff0c\u4ea4\u6613\uff09\u7531\u89e3\u6790\u5668\u548c\u8fc7\u6ee4\u5668\u6536\u96c6\u548c\u5904\u7406\uff0c\u7136\u540e\u4f7f\u7528\u4e1a\u52a1\u903b\u8f91\u8fde\u63a5\u5728\u4e00\u8d77\u3002\u63a5\u4e0b\u6765\u805a\u5408\u6570\u636e\uff0c\u5c06\u805a\u5408\u7ed3\u679c\u63a8\u9001\u5230Druid\uff0c\u5728Druid\u5185\u90e8\uff0c\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u67e5\u8be2\u8bed\u53e5\u5e76\u5bf9\u6570\u636e\u6267\u884c\u590d\u6742\u7684OLAP\u5206\u6790\uff0c\u5e76\u67e5\u770b\u4e0d\u540c\u7b97\u6cd5\u7684\u6548\u679c\u3002<\/p>\n<\/p>\n<p><span><strong>\u5728\u7ebf\u673a\u5668\u5b66\u4e60<\/strong><\/span><\/p>\n<p>\u5728\u8fd9\u90e8\u5206\u4e2dFlink\u6709\u4e24\u4e2a\u5e94\u7528\u573a\u666f\u3002\u9996\u5148\uff0c\u6211\u4eec\u6765\u8ba8\u8bba\u5b83\u5728\u5546\u54c1\u7279\u5f81\u5b9e\u65f6\u66f4\u65b0\u4e2d\u7684\u5e94\u7528\u3002\u963f\u91cc\u5df4\u5df4\u641c\u7d22\u6392\u5e8f\u4e2d\u4f7f\u7528\u7684\u4e00\u4e9b\u5546\u54c1\u7279\u5f81\u5305\u62ec\u5546\u54c1CTR\uff0c\u5546\u54c1\u5e93\u5b58\u548c\u5546\u54c1\u70b9\u51fb\u603b\u6570\u3002\u8fd9\u4e9b\u6570\u636e\u968f\u65f6\u95f4\u800c\u53d8\u5316\uff0c\u5982\u679c\u53ef\u4ee5\u4f7f\u7528\u6700\u65b0\u7684\u6570\u636e\uff0c\u6211\u4eec\u5c31\u80fd\u4e3a\u7528\u6237\u63d0\u4f9b\u66f4\u76f8\u5173\u7684\u641c\u7d22\u7ed3\u679c\u6392\u5e8f\u3002Flink pipeline\u4e3a\u6211\u4eec\u63d0\u4f9b\u5728\u7ebf\u7279\u5f81\u66f4\u65b0\uff0c\u5e76\u5927\u5927\u63d0\u9ad8\u4e86\u8f6c\u5316\u7387\u3002<\/p>\n<p>\u5176\u6b21\uff0c\u6bcf\u5e74\u7684\u7279\u5b9a\u65e5\u5b50\uff08\u5982\u5149\u68cd\u8282\uff09\uff0c\u6709\u4e9b\u5546\u54c1\u6298\u6263\u529b\u5ea6\u5f88\u5927\uff0c\u6709\u65f6\u751a\u81f3\u9ad8\u8fbe50\uff05\u3002\u56e0\u6b64\uff0c\u7528\u6237\u884c\u4e3a\u4e5f\u4f1a\u53d1\u751f\u5f88\u5927\u7684\u53d8\u5316\u3002\u4ea4\u6613\u91cf\u5de8\u5927\uff0c\u901a\u5e38\u6bd4\u6211\u4eec\u5728\u5e73\u65f6\u770b\u5230\u7684\u9ad8\u51fa\u5f88\u591a\u500d\u3002\u4ee5\u524d\u8bad\u7ec3\u7684\u6a21\u578b\u5728\u8fd9\u4e2a\u573a\u666f\u4f5c\u7528\u6709\u9650\uff0c\u56e0\u6b64\u6211\u4eec\u4f7f\u7528\u65e5\u5fd7\u548cFlink\u6d41\u5f0f\u4f5c\u4e1a\u6784\u5efa\u4e86\u5728\u7ebf\u673a\u5668\u5b66\u4e60\u6a21\u578b\uff0c\u8fd9\u4e2a\u6a21\u578b\u4f1a\u5c06\u5b9e\u65f6\u7528\u6237\u884c\u4e3a\u6570\u636e\u53cd\u9988\u5230\u7cfb\u7edf\u4e2d\u3002\u7ed3\u679c\u5728\u8fd9\u4e9b\u4e0d\u5e38\u89c1\u4f46\u975e\u5e38\u91cd\u8981\u7684\u8425\u9500\u8282\u65e5\u7684\u8f6c\u6362\u7387\u6709\u4e86\u5f88\u5927\u7684\u63d0\u5347\u3002<\/p>\n<\/p>\n<p>Part 2\uff1a \u9009\u62e9\u4e00\u4e2a\u6846\u67b6\u6765\u89e3\u51b3\u95ee\u9898<\/p>\n<p><span>\u9009\u62e9Flink\u5e94\u7528\u5230\u641c\u7d22\u57fa\u7840\u67b6\u6784\u4e2d\uff0c\u6211\u4eec\u5728\u56db\u4e2a\u65b9\u9762\u505a\u8fc7\u8bc4\u4f30\u3002 Flink\u5728\u56db\u4e2a\u65b9\u9762\u90fd\u6ee1\u8db3\u6211\u4eec\u7684\u8981\u6c42\u3002<\/span><\/p>\n<ul>\n<li>\n<p><strong>\u654f\u6377\uff1a<\/strong>\u6211\u4eec\u671f\u671b\u80fd\u591f\u4e3a\u6574\u4e2a\uff082\u4e2apipeline\uff09\u641c\u7d22\u57fa\u7840\u67b6\u6784\u6d41\u7a0b\u7ef4\u62a4\u4e00\u5957\u4ee3\u7801\uff0c\u56e0\u6b64\u9700\u8981\u4e00\u4e2a\u9ad8\u7ea7\u7684API\u6765\u6ee1\u8db3\u6211\u4eec\u7684\u4e1a\u52a1\u903b\u8f91\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4e00\u81f4\u6027\uff1a<\/strong>\u5356\u65b9\u6216\u5546\u54c1\u6570\u636e\u5e93\u53d1\u751f\u7684\u53d8\u5316\u5fc5\u987b\u53cd\u9988\u5728\u6700\u7ec8\u641c\u7d22\u7ed3\u679c\u4e2d\uff0c\u56e0\u6b64\u641c\u7d22\u57fa\u7840\u67b6\u6784\u56e2\u961f\u9700\u8981\u81f3\u5c11\u5904\u7406\u4e00\u6b21\uff08at-least-once\uff09\u7684\u8bed\u4e49\uff08\u5bf9\u4e8e\u516c\u53f8\u4e2d\u7684\u4e00\u4e9b\u5176\u4ed6Flink\u7528\u4f8b\uff0c\u8981\u6c42\u6b63\u597d\u4e00\u6b21\uff08exactly-once\uff09\u8bed\u4e49\uff09\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4f4e\u5ef6\u8fdf\uff1a <\/strong>\u5f53\u5546\u54c1\u5e93\u5b58\u91cf\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u5fc5\u987b\u5c3d\u5feb\u5728\u641c\u7d22\u7ed3\u679c\u4e2d\u5f97\u5230\u4f53\u73b0\u3002\u4f8b\u5982\u6211\u4eec\u4e0d\u60f3\u7ed9\u552e\u7f44\u7684\u5546\u54c1\u7ed9\u51fa\u5f88\u9ad8\u7684\u641c\u7d22\u6392\u540d\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6210\u672c\uff1a<\/strong>\u963f\u91cc\u5df4\u5df4\u9700\u8981\u5904\u7406\u5927\u91cf\u6570\u636e\uff0c\u4ee5\u6211\u4eec\u7684\u96c6\u7fa4\u89c4\u6a21\uff0c\u6548\u7387\u63d0\u9ad8\u53ef\u4ee5\u663e\u8457\u7684\u964d\u4f4e\u6210\u672c\u3002\u56e0\u6b64\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u9ad8\u6027\u80fd\u3001\u9ad8\u541e\u5410\u91cf\u7684\u6846\u67b6\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u4e00\u822c\u6765\u8bf4\uff0c\u6709\u4e24\u79cd\u65b9\u6cd5\u6765\u5c06\u6279\u5904\u7406\u548c\u6d41\u5f0f\u5904\u7406\u7edf\u4e00\u8d77\u6765\u3002\u4e00\u79cd\u65b9\u6cd5\u662f\u5c06\u6279\u5904\u7406\u4f5c\u4e3a\u57fa\u672c\u51fa\u53d1\u70b9\uff0c\u5728\u6279\u5904\u7406\u6846\u67b6\u4e0a\u652f\u6301\u6d41\u5f0f\u5904\u7406\u3002\u8fd9\u53ef\u80fd\u4e0d\u7b26\u5408\u771f\u6b63\u610f\u4e49\u4e0a\u4f4e\u5ef6\u8fdf\uff0c\u56e0\u4e3a\u7528\u5fae\u6279\u91cf\u5904\u7406\uff08micro-batching\uff09\u6a21\u62df\u6d41\u5f0f\u5904\u7406\u9700\u8981\u4e00\u4e9b\u56fa\u5b9a\u7684\u5f00\u9500\u3002\u56e0\u6b64\uff0c\u5f53\u8bd5\u56fe\u51cf\u5c11\u5ef6\u8fdf\u65f6\uff0c\u5f00\u9500\u7684\u6bd4\u4f8b\u4e5f\u4f1a\u76f8\u5e94\u589e\u52a0\u3002\u5728\u6211\u4eec\u7684\u89c4\u6a21\u4e0a\uff0c\u4e3a\u6bcf\u4e2a\u5fae\u6279\u91cf\u5904\u7406\u5668\u8c03\u5ea61000\u4e2a\u4efb\u52a1\uff0c\u9700\u8981\u91cd\u65b0\u5efa\u7acb\u8fde\u63a5\u5e76\u91cd\u65b0\u52a0\u8f7d\u72b6\u6001\u3002\u56e0\u6b64\u5728\u67d0\u79cd\u7a0b\u5ea6\u4e0a\uff0c\u5fae\u6279\u5904\u7406\u65b9\u6cd5\u4ee3\u4ef7\u592a\u9ad8\u5c06\u53d8\u5f97\u6ca1\u6709\u610f\u4e49\u3002<\/p>\n<p>Flink\u4ece\u53e6\u4e00\u4e2a\u89d2\u5ea6\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5373\u5c06\u6d41\u5f0f\u5904\u7406\u4f5c\u4e3a\u57fa\u672c\u51fa\u53d1\u70b9\uff0c\u5728\u6d41\u5f0f\u5904\u7406\u6846\u67b6\u4e0a\u652f\u6301\u6279\u91cf\u5904\u7406\uff0c\u5c06\u6279\u5904\u7406\u4f5c\u4e3a\u6d41\u5f0f\u5904\u7406\u7684\u4e00\u79cd\u7279\u6b8a\u60c5\u51b5\u3002\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\uff0c\u4e0d\u4f1a\u4e22\u6389\u6211\u4eec\u5728\u6279\u5904\u7406\u6a21\u5f0f\uff08\u6279\u5904\u7406\u6a21\u5f0f\u4e0b\u6d41\u662f\u6709\u9650\u7684\uff09\u4e0b\u505a\u51fa\u7684\u4f18\u5316\uff0c\u4f60\u4ecd\u7136\u53ef\u4ee5\u505a\u4e00\u4e9b\u6279\u91cf\u5904\u7406\u4e0a\u7684\u4f18\u5316\u3002<\/p>\n<p>Part 3\uff1a Blink\u662f\u4ec0\u4e48?<\/p>\n<p><span>Blink\u662fFlink\u7684\u4e00\u4e2a\u5206\u652f\u7248\u672c\uff0c\u6211\u4eec\u505a\u4e86\u4e00\u5b9a\u7684\u6539\u8fdb\u4ee5\u6ee1\u8db3\u963f\u91cc\u5df4\u5df4\u7684\u4e00\u4e9b\u7279\u5b9a\u9700\u6c42\u3002\u56e0\u6b64\uff0cBlink\u5728\u51e0\u4e2a\u4e0d\u540c\u7684\u96c6\u7fa4\u4e0a\u8fd0\u884c\uff0c\u6bcf\u4e2a\u96c6\u7fa4\u6709\u5927\u7ea61000\u53f0\u673a\u5668\uff0c\u5927\u89c4\u6a21\u96c6\u7fa4\u7684\u6027\u80fd\u5bf9\u6211\u4eec\u6765\u8bf4\u975e\u5e38\u91cd\u8981\u3002<\/span><\/p>\n<p>Blink\u7684\u6539\u8fdb\u4e3b\u8981\u5305\u62ec\u4e24\u4e2a\u65b9\u9762\uff1a<\/p>\n<ul>\n<li>\n<p>Table API\u66f4\u5b8c\u6574\uff0c\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u76f8\u540c\u7684SQL\u8fdb\u884c\u6279\u5904\u7406\u548c\u6d41\u5f0f\u5904\u7406\u3002<\/p>\n<\/li>\n<li>\n<p>\u66f4\u5f3a\u5927\u7684YARN\u6a21\u5f0f\uff0c\u4f46\u4ecd\u7136100\uff05\u517c\u5bb9Flink\u7684API\u548c\u66f4\u5e7f\u6cdb\u7684\u751f\u6001\u7cfb\u7edf\u3002<\/p>\n<\/li>\n<\/ul>\n<p><span><strong>Table API<\/strong><\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.fagao.me\/images\/uploads\/2021_002.jpg\" alt=\"\"><\/p>\n<p>\u6211\u4eec\u9996\u5148\u6dfb\u52a0\u4e86\u5bf9\u7528\u6237\u81ea\u5b9a\u4e49\u51fd\u6570UDF\u7684\u652f\u6301\uff0c\u65b9\u4fbf\u5728Flink\u4e2d\u5b9e\u73b0\u72ec\u7279\u7684\u4e1a\u52a1\u903b\u8f91\u3002\u6211\u4eec\u8fd8\u6dfb\u52a0\u4e86\u4e00\u4e2a\u6d41\u5bf9\u6d41\u7684join\u7684\u529f\u80fd\uff0c\u7531\u4e8eFlink\u5bf9\u4e8e\u72b6\u6001\u6bd4\u8f83\u597d\u7684\u652f\u6301\uff0c\u6240\u4ee5\u5b9e\u73b0\u8d77\u6765\u6bd4\u8f83\u5bb9\u6613\u3002\u6211\u4eec\u6dfb\u52a0\u4e86\u51e0\u4e2a\u805a\u5408\u51fd\u6570\u4ee5\u53ca\u6ed1\u52a8\u7a97\u53e3\u7684\u652f\u6301\uff0c\u6700\u6709\u8da3\u7684\u4e00\u4e2a\u662fdistinct_count\u3002<\/p>\n<p>\uff08\u7f16\u8f91\u6ce8\uff1aFLIP-11\u6db5\u76d6\u4e86\u4e0e\u4e0a\u8ff0\u529f\u80fd\u76f8\u5173\u7684\u4e00\u7cfb\u5217Table API\u548cSQL\u6539\u8fdb\uff0c\u5bf9\u8be5\u4e3b\u9898\u611f\u5174\u8da3\u7684\u53ef\u4ee5\u9605\u8bfb\uff09<\/p>\n<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u8fd0\u884c\u65f6\u6539\u8fdb\uff0c\u53ef\u4ee5\u5206\u4e3a\u56db\u4e2a\u4e0d\u540c\u7684\u7c7b\u522b\u3002<\/p>\n<p><span><strong>Yarn\u4e0a\u7684Blink<\/strong><\/span><\/p>\n<p>\u5f53\u6211\u4eec\u5f00\u59cb\u9879\u76ee\u65f6\uff0cFlink\u652f\u63012\u79cd\u96c6\u7fa4\u6a21\u5f0f\uff1astandalone\u6a21\u5f0f\u548cYARN\u4e0a\u7684Flink\u3002\u5728YARN\u6a21\u5f0f\u4e2d\uff0c\u4f5c\u4e1a\u4e0d\u80fd\u52a8\u6001\u8bf7\u6c42\u548c\u91ca\u653e\u8d44\u6e90\uff0c\u800c\u662f\u9700\u8981\u9884\u5148\u5206\u914d\u6240\u6709\u9700\u8981\u7684\u8d44\u6e90\u3002\u4e0d\u540c\u7684\u4f5c\u4e1a\u53ef\u80fd\u5171\u4eab\u76f8\u540c\u7684JVM\u8fdb\u7a0b\uff0c\u8fd9\u6709\u5229\u4e8e\u8d44\u6e90\u5229\u7528\u548c\u8d44\u6e90\u9694\u79bb\u3002<\/p>\n<p>Blink\u4e2d\u6bcf\u4e2a\u4f5c\u4e1a\u90fd\u6709\u81ea\u5df1\u7684JobMaster\uff0c\u4ee5\u6839\u636e\u4f5c\u4e1a\u9700\u8981\u8bf7\u6c42\u548c\u91ca\u653e\u8d44\u6e90\u3002\u5e76\u4e14\u4e0d\u540c\u7684\u4f5c\u4e1a\u4e0d\u80fd\u5728\u540c\u4e00\u4e2aJava\u8fdb\u7a0b\u4e2d\u8fd0\u884c\uff0c\u8fd9\u5c06\u5728\u4f5c\u4e1a\u548c\u4efb\u52a1\u4e4b\u95f4\u5f97\u5230\u6700\u4f73\u9694\u79bb\u3002\u963f\u91cc\u5df4\u5df4\u56e2\u961f\u76ee\u524d\u6b63\u5728\u4e0eFlink\u793e\u533a\u5408\u4f5c\uff0c\u5c06\u8fd9\u9879\u5de5\u4f5c\u8d21\u732e\u7ed9\u5f00\u653e\u6e90\u4ee3\u7801\uff0c\u6539\u8fdb\u5de5\u4f5c\u5728FLIP-6\uff08\u9664\u4e86YARN\u4e4b\u5916\u8fd8\u6269\u5c55\u5230\u5176\u4ed6\u96c6\u7fa4\u7ba1\u7406\u5668\uff09\u4e2d\u5f97\u5230\u4e86\u4f53\u73b0\u3002<\/p>\n<\/p>\n<p><span><strong>Operator\u7f29\u653e<\/strong><\/span><\/p>\n<p>\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u6211\u4eec\u7684\u5ba2\u6237\u7aef\u53ef\u80fd\u9700\u8981\u6539\u53d8Operator\u7684\u5e76\u884c\u6027\uff0c\u4f46\u540c\u65f6\u4ed6\u4eec\u4e0d\u60f3\u5931\u53bb\u5f53\u524d\u72b6\u6001\u3002\u5f53\u6211\u4eec\u5f00\u59cb\u4f7f\u7528Blink\u65f6\uff0cFlink\u4e0d\u652f\u6301\u5728\u4fdd\u6301\u72b6\u6001\u7684\u540c\u65f6\u6539\u53d8Operator\u7684\u5e76\u884c\u6027\u3002Blink\u5f15\u5165\u4e86\u201cbucket\u201d\u7684\u6982\u5ff5\u4f5c\u4e3a\u72b6\u6001\u7ba1\u7406\u7684\u57fa\u672c\u5355\u4f4d\u3002\u6709\u6bd4\u4efb\u52a1\u66f4\u591a\u7684bucket\uff0c\u5e76\u4e14\u6bcf\u4e2a\u4efb\u52a1\u5c06\u88ab\u5206\u914d\u591a\u4e2abucket\u3002\u5f53\u5e76\u884c\u6027\u6539\u53d8\u65f6\uff0c\u6211\u4eec\u5c06\u91cd\u65b0\u5206\u914d\u4efb\u52a1\u7684bucket\u3002 \u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6539\u53d8Operator\u7684\u5e76\u884c\u6027\u5e76\u7ef4\u6301\u72b6\u6001\u3002<\/p>\n<p>\uff08\u7f16\u8005\u6ce8\uff1aFlink\u793e\u533a\u540c\u65f6\u5728Flink 1.2\u7248\u672c\u4e2d\u89e3\u51b3\u4e86\u7684\u8fd9\u4e2a\u95ee\u9898 &#8211; \u8be5\u529f\u80fd\u5728\u6700\u65b0\u7248\u672c\u7684\u4e3b\u5206\u652f\u4e2d\u53ef\u7528\u3002Flink\u7684\u201ckey groups\u201d\u6982\u5ff5\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u7b49\u540c\u4e8e\u4e0a\u9762\u63d0\u5230\u7684\u201cbucket\u201d\uff0c\u4f46\u662f\u5b9e\u73b0\u65f6\u4f7f\u7528\u7684\u6570\u636e\u7ed3\u6784\u7565\u6709\u4e0d\u540c\u3002\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u5728Jira\u67e5\u770bFLIR-3755\uff09<\/p>\n<\/p>\n<p><strong><span>\u589e\u91cfCheckpoint<\/span><\/strong><\/p>\n<p>\u5728Flink\u4e2d\uff0cCheckpoint\u64cd\u4f5c\u5206\u4e3a\u4e24\u4e2a\u9636\u6bb5\uff1a\u5728\u672c\u5730\u83b7\u53d6\u72b6\u6001\u5feb\u7167\uff0c\u7136\u540e\u5c06\u72b6\u6001\u5feb\u7167\u4fdd\u5b58\u5230HDFS\uff08\u6216\u53e6\u4e00\u4e2a\u5b58\u50a8\u7cfb\u7edf\uff09\uff0c\u5e76\u4e14\u6bcf\u4e2a\u5feb\u7167\u7684\u6574\u4e2a\u72b6\u6001\u5b58\u50a8\u5728HDFS\u4e2d\u3002\u6211\u4eec\u7684\u72b6\u6001\u6570\u636e\u592a\u5927\u4e86\uff0c\u8fd9\u79cd\u65b9\u6cd5\u662f\u4e0d\u53ef\u884c\u7684\uff0c\u6240\u4ee5Blink\u53ea\u5b58\u50a8\u4fee\u6539\u7684\u72b6\u6001\u5728HDFS\u4e2d\uff0c\u8fd9\u80fd\u591f\u5927\u5927\u63d0\u9ad8Checkpoint\u7684\u6548\u7387\u3002\u8fd9\u79cd\u4fee\u6539\u4f7f\u6211\u4eec\u80fd\u591f\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u4f7f\u7528\u5f88\u5927\u7684\u72b6\u6001\u6570\u636e\u3002<\/p>\n<\/p>\n<p><span><strong>\u5f02\u6b65I\/O<\/strong><\/span><\/p>\n<p>\u6211\u4eec\u7684job\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u5f88\u5927\u74f6\u9888\u5728\u8bbf\u95ee\u5916\u90e8\u5b58\u50a8\u5668\u4e0a\uff0c\u5982HBase\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u5f15\u5165\u4e86\u5f02\u6b65I\/O\uff0c\u6211\u4eec\u5c06\u81f4\u529b\u4e8e\u4e3a\u793e\u533a\u505a\u51fa\u8d21\u732e\uff0c\u5e76\u5728FLIP-12\u4e2d\u6709\u8be6\u7ec6\u63cf\u8ff0\u3002<\/p>\n<p>\uff08\u7f16\u8f91\u7b14\u8bb0\uff1adata 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