{"id":1132,"date":"2020-04-28T17:13:00","date_gmt":"2020-04-28T09:13:00","guid":{"rendered":"http:\/\/39.97.231.10\/?p=1132"},"modified":"2020-04-28T17:13:00","modified_gmt":"2020-04-28T09:13:00","slug":"flink%e6%a6%82%e5%bf%b5%e8%af%8d%e6%b1%87%e8%a1%a8","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=1132","title":{"rendered":"Flink\u6982\u5ff5\u8bcd\u6c47\u8868"},"content":{"rendered":"<ul>\n<li><strong>Flink Application Cluster<\/strong><br \/>\nFlink Application Cluster \u662f\u4e00\u4e2a\u4e13\u7528\u7684 Flink Cluster\uff0c\u5b83\u4ec5\u7528\u4e8e\u6267\u884c\u5355\u4e2a Flink Job\u3002Flink Cluster\u7684\u751f\u547d\u5468\u671f\u4e0e Flink Job\u7684\u751f\u547d\u5468\u671f\u7ed1\u5b9a\u5728\u4e00\u8d77\u3002\u4ee5\u524d Flink Application Cluster \u4e5f\u79f0\u4e3ajob mode\u7684 Flink Cluster\u3002\u548c Flink Session Cluster \u4f5c\u5bf9\u6bd4\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Flink Cluster<\/strong><br \/>\nFlink \u96c6\u7fa4\u662f\u7531\u4e00\u4e2a Flink Master \u548c\u4e00\u4e2a\u6216\u591a\u4e2a Flink TaskManager \u8fdb\u7a0b\u7ec4\u6210\u7684\u5206\u5e03\u5f0f\u7cfb\u7edf\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Event<\/strong><br \/>\nEvent \u662f\u5bf9\u5e94\u7528\u7a0b\u5e8f\u5efa\u6a21\u7684\u57df\u7684\u72b6\u6001\u66f4\u6539\u7684\u58f0\u660e\u3002\u5b83\u53ef\u4ee5\u540c\u65f6\u4e3a\u6d41\u6216\u6279\u5904\u7406\u5e94\u7528\u7a0b\u5e8f\u7684 input \u548c output\uff0c\u4e5f\u53ef\u4ee5\u5355\u72ec\u662f input \u6216\u8005 output \u4e2d\u7684\u4e00\u79cd\u3002Event \u662f\u7279\u6b8a\u7c7b\u578b\u7684 Record\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Function<\/strong><br \/>\nFunction \u662f\u7531\u7528\u6237\u5b9e\u73b0\u7684\uff0c\u5e76\u5c01\u88c5\u4e86 Flink \u7a0b\u5e8f\u7684\u5e94\u7528\u7a0b\u5e8f\u903b\u8f91\u3002\u5927\u591a\u6570 Function \u90fd\u7531\u76f8\u5e94\u7684 Operator \u5c01\u88c5\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Instance<\/strong><br \/>\nInstance \u5e38\u7528\u4e8e\u63cf\u8ff0\u8fd0\u884c\u65f6\u7684\u7279\u5b9a\u7c7b\u578b(\u901a\u5e38\u662f Operator \u6216\u8005 Function)\u7684\u4e00\u4e2a\u5177\u4f53\u5b9e\u4f8b\u3002\u7531\u4e8e Apache Flink \u4e3b\u8981\u662f\u7528 Java \u7f16\u5199\u7684\uff0c\u6240\u4ee5\uff0c\u8fd9\u4e0e Java \u4e2d\u7684 Instance \u6216 Object \u7684\u5b9a\u4e49\u76f8\u5bf9\u5e94\u3002\u5728 Apache Flink \u7684\u4e0a\u4e0b\u6587\u4e2d\uff0cparallel instance \u4e5f\u5e38\u7528\u4e8e\u5f3a\u8c03\u540c\u4e00 Operator \u6216\u8005 Function \u7684\u591a\u4e2a instance \u4ee5\u5e76\u884c\u7684\u65b9\u5f0f\u8fd0\u884c\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Flink Job<\/strong><br \/>\nFlink Job \u4ee3\u8868\u8fd0\u884c\u65f6\u7684 Flink \u7a0b\u5e8f\u3002Flink Job \u53ef\u4ee5\u63d0\u4ea4\u5230\u957f\u65f6\u95f4\u8fd0\u884c\u7684 Flink Session Cluster\uff0c\u4e5f\u53ef\u4ee5\u4f5c\u4e3a\u72ec\u7acb\u7684 Flink Application Cluster \u542f\u52a8\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Flink JobManager<\/strong><br \/>\nJobManager \u662f\u5728 Flink Master \u8fd0\u884c\u4e2d\u7684\u7ec4\u4ef6\u4e4b\u4e00\u3002JobManager \u8d1f\u8d23\u76d1\u7763\u5355\u4e2a\u4f5c\u4e1a Task \u7684\u6267\u884c\u3002\u4ee5\u524d\uff0c\u6574\u4e2a Flink Master \u90fd\u53eb\u505a JobManager\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Logical Graph<\/strong><br \/>\nLogical Graph \u662f\u4e00\u79cd\u63cf\u8ff0\u6d41\u5904\u7406\u7a0b\u5e8f\u7684\u9ad8\u9636\u903b\u8f91\u6709\u5411\u56fe\u3002\u8282\u70b9\u662fOperator\uff0c\u8fb9\u4ee3\u8868\u8f93\u5165\/\u8f93\u51fa\u5173\u7cfb\u3001\u6570\u636e\u6d41\u548c\u6570\u636e\u96c6\u4e2d\u7684\u4e4b\u4e00\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Managed State<\/strong><br \/>\nManaged State \u63cf\u8ff0\u4e86\u5df2\u5728\u6846\u67b6\u4e2d\u6ce8\u518c\u7684\u5e94\u7528\u7a0b\u5e8f\u7684\u6258\u7ba1\u72b6\u6001\u3002\u5bf9\u4e8e\u6258\u7ba1\u72b6\u6001\uff0cApache Flink \u4f1a\u8d1f\u8d23\u6301\u4e45\u5316\u548c\u91cd\u4f38\u7f29\u7b49\u4e8b\u5b9c\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Flink Master<\/strong><br \/>\nFlink Master \u662f Flink Cluster \u7684\u4e3b\u8282\u70b9\u3002\u5b83\u5305\u542b\u4e09\u4e2a\u4e0d\u540c\u7684\u7ec4\u4ef6\uff1aFlink Resource Manager\u3001Flink Dispatcher\u3001\u8fd0\u884c\u6bcf\u4e2a Flink Job \u7684 Flink JobManager\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Operator<\/strong><br \/>\nLogical Graph \u7684\u8282\u70b9\u3002\u7b97\u5b50\u6267\u884c\u67d0\u79cd\u64cd\u4f5c\uff0c\u8be5\u64cd\u4f5c\u901a\u5e38\u7531 Function \u6267\u884c\u3002Source \u548c Sink \u662f\u6570\u636e\u8f93\u5165\u548c\u6570\u636e\u8f93\u51fa\u7684\u7279\u6b8a\u7b97\u5b50\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Operator Chain<\/strong><br \/>\n\u7b97\u5b50\u94fe\u7531\u4e24\u4e2a\u6216\u591a\u4e2a\u8fde\u7eed\u7684 Operator \u7ec4\u6210\uff0c\u4e24\u8005\u4e4b\u95f4\u6ca1\u6709\u4efb\u4f55\u7684\u91cd\u65b0\u5206\u533a\u3002\u540c\u4e00\u7b97\u5b50\u94fe\u5185\u7684\u7b97\u5b50\u53ef\u4ee5\u5f7c\u6b64\u76f4\u63a5\u4f20\u9012 record\uff0c\u800c\u65e0\u9700\u901a\u8fc7\u5e8f\u5217\u5316\u6216 Flink \u7684\u7f51\u7edc\u6808\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Partition<\/strong><br \/>\n\u5206\u533a\u662f\u6574\u4e2a\u6570\u636e\u6d41\u6216\u6570\u636e\u96c6\u7684\u72ec\u7acb\u5b50\u96c6\u3002\u901a\u8fc7\u5c06\u6bcf\u4e2a Record \u5206\u914d\u7ed9\u4e00\u4e2a\u6216\u591a\u4e2a\u5206\u533a\uff0c\u6765\u628a\u6570\u636e\u6d41\u6216\u6570\u636e\u96c6\u5212\u5206\u4e3a\u591a\u4e2a\u5206\u533a\u3002\u5728\u8fd0\u884c\u671f\u95f4\uff0cTask \u4f1a\u6d88\u8d39\u6570\u636e\u6d41\u6216\u6570\u636e\u96c6\u7684\u5206\u533a\u3002\u6539\u53d8\u6570\u636e\u6d41\u6216\u6570\u636e\u96c6\u5206\u533a\u65b9\u5f0f\u7684\u8f6c\u6362\u901a\u5e38\u79f0\u4e3a\u91cd\u5206\u533a\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Physical Graph<\/strong><br \/>\nPhysical graph \u662f\u4e00\u4e2a\u5728\u5206\u5e03\u5f0f\u8fd0\u884c\u65f6\uff0c\u628a Logical Graph \u8f6c\u6362\u4e3a\u53ef\u6267\u884c\u7684\u7ed3\u679c\u3002\u8282\u70b9\u662f Task\uff0c\u8fb9\u8868\u793a\u6570\u636e\u6d41\u6216\u6570\u636e\u96c6\u7684\u8f93\u5165\/\u8f93\u51fa\u5173\u7cfb\u6216 partition\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Record<\/strong><br \/>\nRecord \u662f\u6570\u636e\u96c6\u6216\u6570\u636e\u6d41\u7684\u7ec4\u6210\u5143\u7d20\u3002Operator \u548c Function\u63a5\u6536 record \u4f5c\u4e3a\u8f93\u5165\uff0c\u5e76\u5c06 record \u4f5c\u4e3a\u8f93\u51fa\u53d1\u51fa\u3002<\/li>\n<\/ul>\n<ul>\n<li>Flink Session Cluster<br \/>\n\u957f\u65f6\u95f4\u8fd0\u884c\u7684 Flink Cluster\uff0c\u5b83\u53ef\u4ee5\u63a5\u53d7\u591a\u4e2a Flink Job \u7684\u6267\u884c\u3002\u6b64 Flink Cluster \u7684\u751f\u547d\u5468\u671f\u4e0d\u53d7\u4efb\u4f55 Flink Job \u751f\u547d\u5468\u671f\u7684\u7ea6\u675f\u9650\u5236\u3002\u4ee5\u524d\uff0cFlink Session Cluster \u4e5f\u79f0\u4e3a session mode \u7684 Flink Cluster\uff0c\u548c Flink Application Cluster \u76f8\u5bf9\u5e94\u3002<\/li>\n<\/ul>\n<ul>\n<li>State Backend<br \/>\n\u5bf9\u4e8e\u6d41\u5904\u7406\u7a0b\u5e8f\uff0cFlink Job \u7684 State Backend \u51b3\u5b9a\u4e86\u5176 state \u662f\u5982\u4f55\u5b58\u50a8\u5728\u6bcf\u4e2a TaskManager \u4e0a\u7684\uff08 TaskManager \u7684 Java \u5806\u6808\u6216\u5d4c\u5165\u5f0f RocksDB\uff09\uff0c\u4ee5\u53ca\u5b83\u5728 checkpoint \u65f6\u7684\u5199\u5165\u4f4d\u7f6e\uff08 Flink Master \u7684 Java \u5806\u6216\u8005 Filesystem\uff09\u3002<\/li>\n<\/ul>\n<ul>\n<li>Sub-Task<br \/>\nSub-Task \u662f\u8d1f\u8d23\u5904\u7406\u6570\u636e\u6d41 Partition \u7684 Task\u3002\u201dSub-Task\u201d\u5f3a\u8c03\u7684\u662f\u540c\u4e00\u4e2a Operator \u6216\u8005 Operator Chain \u5177\u6709\u591a\u4e2a\u5e76\u884c\u7684 Task \u3002<\/li>\n<\/ul>\n<ul>\n<li>Task<br \/>\nTask \u662f Physical Graph \u7684\u8282\u70b9\u3002\u5b83\u662f\u57fa\u672c\u7684\u5de5\u4f5c\u5355\u5143\uff0c\u7531 Flink \u7684 runtime \u6765\u6267\u884c\u3002Task \u6b63\u597d\u5c01\u88c5\u4e86\u4e00\u4e2a Operator \u6216\u8005 Operator Chain \u7684 parallel instance\u3002<\/li>\n<\/ul>\n<ul>\n<li>Flink TaskManager<br \/>\nTaskManager \u662f Flink Cluster \u7684\u5de5\u4f5c\u8fdb\u7a0b\u3002Task \u88ab\u8c03\u5ea6\u5230 TaskManager \u4e0a\u6267\u884c\u3002TaskManager \u76f8\u4e92\u901a\u4fe1\uff0c\u53ea\u4e3a\u5728\u540e\u7eed\u7684 Task \u4e4b\u95f4\u4ea4\u6362\u6570\u636e\u3002<\/li>\n<\/ul>\n<ul>\n<li><strong>Transformation<\/strong><br \/>\nTransformation \u5e94\u7528\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u6570\u636e\u6d41\u6216\u6570\u636e\u96c6\uff0c\u5e76\u4ea7\u751f\u4e00\u4e2a\u6216\u591a\u4e2a\u8f93\u51fa\u6570\u636e\u6d41\u6216\u6570\u636e\u96c6\u3002Transformation \u53ef\u80fd\u4f1a\u5728\u6bcf\u4e2a\u8bb0\u5f55\u7684\u57fa\u7840\u4e0a\u66f4\u6539\u6570\u636e\u6d41\u6216\u6570\u636e\u96c6\uff0c\u4f46\u4e5f\u53ef\u4ee5\u53ea\u66f4\u6539\u5176\u5206\u533a\u6216\u6267\u884c\u805a\u5408\u3002\u867d\u7136 Operator \u548c Function \u662f Flink API \u7684\u201c\u7269\u7406\u201d\u90e8\u5206\uff0c\u4f46 Transformation \u53ea\u662f\u4e00\u4e2a API \u6982\u5ff5\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5927\u591a\u6570\uff08\u4f46\u4e0d\u662f\u5168\u90e8\uff09Transformation \u662f\u7531\u67d0\u4e9b Operator \u5b9e\u73b0\u7684\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Flink Application Cluster Flink Application Cluster \u662f\u4e00\u4e2a &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=1132\"> <span class=\"screen-reader-text\">Flink\u6982\u5ff5\u8bcd\u6c47\u8868<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":1133,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[96],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":0,"uagb_excerpt":"Flink Application Cluster Flink Application Cluster \u662f\u4e00\u4e2a&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1132"}],"collection":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1132"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1132\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1132"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}