{"id":71918,"date":"2026-02-04T14:48:43","date_gmt":"2026-02-04T06:48:43","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/71918.html"},"modified":"2026-02-04T14:48:43","modified_gmt":"2026-02-04T06:48:43","slug":"%e5%a4%a7%e6%95%b0%e6%8d%ae%e6%8a%80%e6%9c%af%e4%b9%8b-flink-%e4%bc%98%e5%8c%96%e8%b5%84%e6%ba%90%e9%85%8d%e7%bd%ae%e8%b0%83%e4%bc%98%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/71918.html","title":{"rendered":"\u5927\u6570\u636e\u6280\u672f\u4e4b Flink \u4f18\u5316(\u8d44\u6e90\u914d\u7f6e\u8c03\u4f18\uff09"},"content":{"rendered":"

\u672c\u535a\u5ba2\u603b\u7ed3\u4e3aB\u7ad9\u5c1a\u7845\u8c37\u5927\u6570\u636eFlink2.0\u8c03\u4f18，Flink\u6027\u80fd\u4f18\u5316\u89c6\u9891\u7684\u7b14\u8bb0\u603b\u7ed3\u3002\u5c1a\u7845\u8c37<\/span>https:\/\/so.csdn.net\/so\/search?q=%E5%B0%9A%E7%A1%85%E8%B0%B7&spm=1001.2101.3001.7020<\/span><\/span>\u5927\u6570\u636eFlink2.0\u8c03\u4f18，Flink\u6027\u80fd\u4f18\u5316<\/span>https:\/\/www.bilibili.com\/video\/BV1Q5411f76P<\/span><\/span><\/p>\n

\u8d44\u6e90\u914d\u7f6e\u8c03\u4f18 <\/span><\/h2>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Flink \u6027\u80fd\u8c03\u4f18\u7684\u7b2c\u4e00\u6b65，\u5c31\u662f\u4e3a\u4efb\u52a1\u5206\u914d\u5408\u9002\u7684\u8d44\u6e90，\u5728\u4e00\u5b9a\u8303\u56f4\u5185，\u589e\u52a0\u8d44\u6e90\u7684\u5206\u914d\u4e0e\u6027\u80fd\u7684\u63d0\u5347\u662f\u6210\u6b63\u6bd4\u7684，\u5b9e\u73b0\u4e86\u6700\u4f18\u7684\u8d44\u6e90\u914d\u7f6e\u540e，\u5728\u6b64\u57fa\u7840\u4e0a\u518d\u8003\u8651\u8fdb\u884c\u540e\u9762\u8bba\u8ff0\u7684\u6027\u80fd\u8c03\u4f18\u7b56\u7565\u3002 <\/span><\/p>\n

\u63d0\u4ea4\u65b9\u5f0f\u4e3b\u8981\u662f yarn-per-job，\u8d44\u6e90\u7684\u5206\u914d\u5728\u4f7f\u7528\u811a\u672c\u63d0\u4ea4 Flink \u4efb\u52a1\u65f6\u8fdb\u884c\u6307\u5b9a\u3002 <\/span><\/p>\n

\u27a2 <\/span>
\n \u6807\u51c6\u7684 Flink \u4efb\u52a1\u63d0\u4ea4\u811a\u672c（Generic CLI \u6a21\u5f0f） <\/span><\/p>\n

\u4ece 1.11 \u5f00\u59cb，\u589e\u52a0\u4e86\u901a\u7528\u5ba2\u6237\u7aef\u6a21\u5f0f，\u53c2\u6570\u4f7f\u7528-D <property=value>\u6307\u5b9a <\/span><\/p>\n

bin\/flink run \\\\
\n-t yarn-per-job \\\\
\n-d \\\\
\n-p 5 \\\\ \u6307\u5b9a\u5e76\u884c\u5ea6
\n-Dyarn.application.queue=test \\\\ \u6307\u5b9a yarn \u961f\u5217
\n-Djobmanager.memory.process.size=1024mb \\\\ \u6307\u5b9a JM \u7684\u603b\u8fdb\u7a0b\u5927\u5c0f
\n-Dtaskmanager.memory.process.size=1024mb \\\\ \u6307\u5b9a\u6bcf\u4e2a TM \u7684\u603b\u8fdb\u7a0b\u5927\u5c0f
\n-Dtaskmanager.numberOfTaskSlots=2 \\\\ \u6307\u5b9a\u6bcf\u4e2a TM \u7684 slot \u6570
\n-c com.atguigu.flink.tuning.UvDemo \\\\
\n\/opt\/module\/flink-1.13.1\/myjar\/flink-tuning-1.0-SNAPSHOT.jar <\/p>\n

\u53c2\u6570\u5217\u8868： <\/span><\/p>\n

https:\/\/ci.apache.org\/projects\/flink\/flink-docs-release-1.13\/deployment\/config.html<\/span>\u00a0<\/p>\n

\u5185\u5b58\u8bbe\u7f6e <\/span><\/h3>\n

TaskManager \u5185\u5b58\u6a21\u578b <\/span><\/h4>\n

\"\"<\/p>\n

1\u3001\u5185\u5b58\u6a21\u578b\u8be6\u89e3 <\/span><\/h5>\n

\u00a0<\/span>
\n JVM \u7279\u5b9a\u5185\u5b58：<\/span>
\n JVM \u672c\u8eab\u4f7f\u7528\u7684\u5185\u5b58，\u5305\u542b JVM \u7684 metaspace \u548c over-head <\/span><\/p>\n

1）JVM metaspace：JVM \u5143\u7a7a\u95f4 <\/span><\/p>\n

taskmanager.memory.jvm-metaspace.size，\u9ed8\u8ba4 256mb <\/span><\/p>\n

2）JVM over-head \u6267\u884c\u5f00\u9500：JVM \u6267\u884c\u65f6\u81ea\u8eab\u6240\u9700\u8981\u7684\u5185\u5bb9，\u5305\u62ec\u7ebf\u7a0b\u5806\u6808\u3001IO\u3001\u7f16\u8bd1 <\/span><\/p>\n

\u7f13\u5b58\u7b49\u6240\u4f7f\u7528\u7684\u5185\u5b58\u3002 <\/span><\/p>\n

taskmanager.memory.jvm-overhead.fraction，\u9ed8\u8ba4 0.1 <\/span><\/p>\n

taskmanager.memory.jvm-overhead.min，\u9ed8\u8ba4 192mb <\/span><\/p>\n

taskmanager.memory.jvm-overhead.max，\u9ed8\u8ba4 1gb <\/span><\/p>\n

\u603b\u8fdb\u7a0b\u5185\u5b58*fraction，\u5982\u679c\u5c0f\u4e8e\u914d\u7f6e\u7684 min（\u6216\u5927\u4e8e\u914d\u7f6e\u7684 max）\u5927\u5c0f，\u5219\u4f7f\u7528 min\/max<\/span>
\n \u5927\u5c0f<\/span><\/p>\n

\u6846\u67b6\u5185\u5b58：<\/span>
\n Flink \u6846\u67b6，\u5373 TaskManager \u672c\u8eab\u6240\u5360\u7528\u7684\u5185\u5b58，<\/span>
\n \u4e0d\u8ba1\u5165 Slot \u7684\u8d44\u6e90\u4e2d\u3002 <\/span><\/p>\n

\u5806\u5185：taskmanager.memory.framework.heap.size，\u9ed8\u8ba4 128MB <\/span><\/p>\n

\u5806\u5916：taskmanager.memory.framework.off-heap.size，\u9ed8\u8ba4 128MB <\/span><\/p>\n

Task \u5185\u5b58：<\/span>
\n Task \u6267\u884c\u7528\u6237\u4ee3\u7801\u65f6\u6240\u4f7f\u7528\u7684\u5185\u5b58 <\/span><\/p>\n

\u5806\u5185：taskmanager.memory.task.heap.size，\u9ed8\u8ba4 none，\u7531 Flink \u5185\u5b58\u6263\u9664\u6389\u5176\u4ed6\u90e8\u5206 <\/span><\/p>\n

\u7684\u5185\u5b58\u5f97\u5230\u3002 <\/span><\/p>\n

\u5806\u5916：taskmanager.memory.task.off-heap.size，\u9ed8\u8ba4 0，\u8868\u793a\u4e0d\u4f7f\u7528\u5806\u5916\u5185\u5b58 <\/span><\/p>\n

\u7f51\u7edc\u5185\u5b58：<\/span>
\n \u7f51\u7edc\u6570\u636e\u4ea4\u6362\u6240\u4f7f\u7528\u7684\u5806\u5916\u5185\u5b58\u5927\u5c0f，\u5982\u7f51\u7edc\u6570\u636e\u4ea4\u6362\u7f13\u51b2\u533a <\/span><\/p>\n

\u5806\u5916：taskmanager.memory.network.fraction，\u9ed8\u8ba4 0.1 <\/span><\/p>\n

taskmanager.memory.network.min，\u9ed8\u8ba4 64mb <\/span><\/p>\n

taskmanager.memory.network.max，\u9ed8\u8ba4 1gb <\/span><\/p>\n

Flink \u5185\u5b58*fraction，\u5982\u679c\u5c0f\u4e8e\u914d\u7f6e\u7684 min（\u6216\u5927\u4e8e\u914d\u7f6e\u7684 max）\u5927\u5c0f，\u5219\u4f7f\u7528 min\/max <\/span><\/p>\n

\u5927\u5c0f <\/span><\/p>\n

\u6258\u7ba1\u5185\u5b58：<\/span>
\n \u7528\u4e8e RocksDB State Backend \u7684\u672c\u5730\u5185\u5b58\u548c\u6279\u7684\u6392\u5e8f\u3001\u54c8\u5e0c\u8868\u3001\u7f13\u5b58\u4e2d\u95f4\u7ed3\u679c\u3002 <\/span><\/p>\n

\u5806\u5916：taskmanager.memory.managed.fraction，\u9ed8\u8ba4 0.4 <\/span><\/p>\n

taskmanager.memory.managed.size，\u9ed8\u8ba4 none <\/span><\/p>\n

\u5982\u679c size \u6ca1\u6307\u5b9a，\u5219\u7b49\u4e8e Flink \u5185\u5b58*fraction<\/span> <\/p>\n

\n

\u6848\u4f8b\u5206\u6790 <\/span><\/p>\n

\u57fa\u4e8eYarn\u6a21\u5f0f，\u4e00\u822c\u53c2\u6570\u6307\u5b9a\u7684\u662f\u603b\u8fdb\u7a0b\u5185\u5b58，taskmanager.memory.process.size， <\/span><\/p>\n

\u6bd4\u5982\u6307\u5b9a\u4e3a 4G，\u6bcf\u4e00\u5757\u5185\u5b58\u5f97\u5230\u5927\u5c0f\u5982\u4e0b： <\/span><\/p>\n

（1）\u8ba1\u7b97 Flink \u5185\u5b58<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0JVM \u5143\u7a7a\u95f4 256m<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0JVM \u6267\u884c\u5f00\u9500： 4g*0.1=409.6m，\u5728[192m,1g]\u4e4b\u95f4，\u6700\u7ec8\u7ed3\u679c 409.6m <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Flink \u5185\u5b58=4g-256m-409.6m=3430.4m<\/span><\/p>\n

（2）\u7f51\u7edc\u5185\u5b58=3430.4m*0.1=343.04m，\u5728[64m,1g]\u4e4b\u95f4，\u6700\u7ec8\u7ed3\u679c 343.04m <\/span><\/p>\n

（3）\u6258\u7ba1\u5185\u5b58=3430.4m*0.4=1372.16m <\/span><\/p>\n

（4）\u6846\u67b6\u5185\u5b58，\u5806\u5185\u548c\u5806\u5916\u90fd\u662f 128m <\/span><\/p>\n

（5）Task \u5806\u5185\u5185\u5b58=3430.4m-128m-128m-343.04m-1372.16m=1459.2m <\/span><\/p>\n

\"\"<\/p>\n

\u6240\u4ee5\u8fdb\u7a0b\u5185\u5b58\u7ed9\u591a\u5927，\u6bcf\u4e00\u90e8\u5206\u5185\u5b58\u9700\u4e0d\u9700\u8981\u8c03\u6574，\u53ef\u4ee5\u770b\u5185\u5b58\u7684\u4f7f\u7528\u7387\u6765\u8c03\u6574\u3002<\/span> <\/p>\n

\n
2 \u751f\u4ea7\u8d44\u6e90\u914d\u7f6e\u793a\u4f8b <\/span><\/h5>\n

bin\/flink run \\\\
\n-t yarn-per-job \\\\
\n-d \\\\
\n-p 5 \\\\ \u6307\u5b9a\u5e76\u884c\u5ea6
\n-Dyarn.application.queue=test \\\\ \u6307\u5b9a yarn \u961f\u5217
\n-Djobmanager.memory.process.size=2048mb \\\\ JM2~4G \u8db3\u591f
\n-Dtaskmanager.memory.process.size=4096mb \\\\ \u5355\u4e2a TM2~8G \u8db3\u591f
\n-Dtaskmanager.numberOfTaskSlots=2 \\\\ \u4e0e\u5bb9\u5668\u6838\u6570 1core：1slot \u6216 2core：1slot
\n-c com.atguigu.flink.tuning.UvDemo \\\\
\n\/opt\/module\/flink-1.13.1\/myjar\/flink-tuning-1.0-SNAPSHOT.jar <\/p>\n

Flink \u662f\u5b9e\u65f6\u6d41\u5904\u7406，\u5173\u952e\u5728\u4e8e\u8d44\u6e90\u60c5\u51b5\u80fd\u4e0d\u80fd\u6297\u4f4f\u9ad8\u5cf0\u65f6\u671f\u6bcf\u79d2\u7684\u6570\u636e\u91cf，\u901a\u5e38\u7528 QPS\/TPS \u6765\u63cf\u8ff0\u6570\u636e\u60c5\u51b5\u3002 <\/span><\/p>\n

\n

\u5408\u7406\u5229\u7528 cpu \u8d44\u6e90 <\/span><\/h3>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Yarn \u7684\u5bb9\u91cf\u8c03\u5ea6\u5668\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u662f\u4f7f\u7528\u201cDefaultResourceCalculator\u201d\u5206\u914d\u7b56\u7565，\u53ea\u6839\u636e\u5185\u5b58\u8c03\u5ea6\u8d44\u6e90，\u6240\u4ee5\u5728 Yarn \u7684\u8d44\u6e90\u7ba1\u7406\u9875\u9762\u4e0a\u770b\u5230\u6bcf\u4e2a\u5bb9\u5668\u7684 vcore \u4e2a\u6570\u8fd8\u662f 1\u3002 <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u53ef\u4ee5\u4fee\u6539\u7b56\u7565\u4e3a DominantResourceCalculator，\u8be5\u8d44\u6e90\u8ba1\u7b97\u5668\u5728\u8ba1\u7b97\u8d44\u6e90\u7684\u65f6\u5019\u4f1a<\/span>\u7efc\u5408\u8003\u8651 cpu \u548c\u5185\u5b58\u7684\u60c5\u51b5\u3002\u5728 capacity-scheduler.xml \u4e2d\u4fee\u6539\u5c5e\u6027:
\n <property>
\n<name>yarn.scheduler.capacity.resource-calculator<\/name>
\n<!– <value>org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator<\/value> –>
\n<value>org.apache.hadoop.yarn.util.resource.DominantResourceCalculator<\/value>
\n<\/property> <\/p>\n

\u4f7f\u7528 DefaultResourceCalculator \u7b56\u7565 <\/span><\/h4>\n

bin\/flink run \\\\
\n-t yarn-per-job \\\\
\n-d \\\\
\n-p 5 \\\\
\n-Drest.flamegraph.enabled=true \\\\
\n-Dyarn.application.queue=test \\\\
\n-Djobmanager.memory.process.size=1024mb \\\\
\n-Dtaskmanager.memory.process.size=4096mb \\\\
\n-Dtaskmanager.numberOfTaskSlots=2 \\\\
\n-c com.atguigu.flink.tuning.UvDemo \\\\
\n\/opt\/module\/flink-1.13.1\/myjar\/flink-tuning-1.0-SNAPSHOT.jar <\/p>\n

\u53ef\u4ee5\u770b\u5230\u4e00\u4e2a\u5bb9\u5668\u53ea\u6709\u4e00\u4e2a vcore：<\/span><\/p>\n

\"\"<\/p>\n

\u4f7f\u7528 DominantResourceCalculator \u7b56\u7565 <\/span><\/h4>\n

\u4fee\u6539\u540e yarn \u914d\u7f6e\u540e，\u5206\u53d1\u914d\u7f6e\u5e76\u91cd\u542f yarn，\u518d\u6b21\u63d0\u4ea4 flink \u4f5c\u4e1a： <\/span>
\n bin\/flink run \\\\
\n-t yarn-per-job \\\\
\n-d \\\\
\n-p 5 \\\\
\n-Drest.flamegraph.enabled=true \\\\
\n-Dyarn.application.queue=test \\\\
\n-Djobmanager.memory.process.size=1024mb \\\\
\n-Dtaskmanager.memory.process.size=4096mb \\\\
\n-Dtaskmanager.numberOfTaskSlots=2 \\\\
\n-c com.atguigu.flink.tuning.UvDemo \\\\
\n\/opt\/module\/flink-1.13.1\/myjar\/flink-tuning-1.0-SNAPSHOT.jar <\/p>\n

\u770b\u5230\u5bb9\u5668\u7684 vcore \u6570\u53d8\u4e86: <\/span><\/p>\n

\"\"<\/p>\n

JobManager1 \u4e2a，\u5360\u7528 1 \u4e2a\u5bb9\u5668，vcore=1 <\/span><\/p>\n

TaskManager3 \u4e2a，\u5360\u7528 3 \u4e2a\u5bb9\u5668，\u6bcf\u4e2a\u5bb9\u5668 vcore=2，\u603b vcore=2*3=6，\u56e0\u4e3a<\/span>
\n \u9ed8\u8ba4 \u5355\u4e2a\u5bb9\u5668\u7684 vcore \u6570=\u5355 TM \u7684 slot \u6570 <\/span><\/p>\n

\u4f7f \u7528 DominantResourceCalculator \u7b56 \u7565 \u5e76 \u6307 \u5b9a \u5bb9 \u5668 <\/span>vcore \u6570 <\/span><\/h4>\n

\u6307\u5b9a yarn \u5bb9\u5668\u7684 vcore \u6570，\u63d0\u4ea4： <\/span>
\n bin\/flink run \\\\
\n-t yarn-per-job \\\\
\n-d \\\\
\n-p 5 \\\\
\n-Drest.flamegraph.enabled=true \\\\
\n-Dyarn.application.queue=test \\\\
\n-Dyarn.containers.vcores=3 \\\\
\n-Djobmanager.memory.process.size=1024mb \\\\
\n-Dtaskmanager.memory.process.size=4096mb \\\\
\n-Dtaskmanager.numberOfTaskSlots=2 \\\\
\n-c com.atguigu.flink.tuning.UvDemo \\\\
\n\/opt\/module\/flink-1.13.1\/myjar\/flink-tuning-1.0-SNAPSHOT.jar <\/p>\n

\"\"<\/p>\n

JobManager1 \u4e2a，\u5360\u7528 1 \u4e2a\u5bb9\u5668，vcore=1 <\/span><\/p>\n

TaskManager3 \u4e2a，\u5360\u7528 3 \u4e2a\u5bb9\u5668，\u6bcf\u4e2a\u5bb9\u5668 <\/span>
\n vcore =3<\/span>
\n ，\u603b vcore=3*3=9 <\/span><\/p>\n

\n

\u5e76\u884c\u5ea6\u8bbe\u7f6e <\/span><\/h3>\n

\u5168\u5c40\u5e76\u884c\u5ea6\u8ba1\u7b97 <\/span><\/h4>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5f00\u53d1\u5b8c\u6210\u540e，\u5148\u8fdb\u884c<\/span>
\n \u538b\u6d4b<\/span>
\n \u3002\u4efb\u52a1\u5e76\u884c\u5ea6\u7ed9 10 \u4ee5\u4e0b，\u6d4b\u8bd5\u5355\u4e2a\u5e76\u884c\u5ea6\u7684\u5904\u7406\u4e0a\u9650\u3002\u7136\u540e <\/span>
\n \u603b QPS\/\u5355\u5e76\u884c\u5ea6\u7684\u5904\u7406\u80fd\u529b = \u5e76\u884c\u5ea6 <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5f00\u53d1\u5b8c Flink \u4f5c\u4e1a，\u538b\u6d4b\u7684\u65b9\u5f0f\u5f88\u7b80\u5355，\u5148\u5728 kafka \u4e2d\u79ef\u538b\u6570\u636e，\u4e4b\u540e\u5f00\u542f Flink \u4efb\u52a1， \u51fa\u73b0\u53cd\u538b，\u5c31\u662f\u5904\u7406\u74f6\u9888\u3002\u76f8\u5f53\u4e8e\u6c34\u5e93\u5148\u79ef\u6c34，\u4e00\u4e0b\u5b50\u6cc4\u6d2a\u3002 <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e0d\u80fd\u53ea\u4ece QPS \u53bb\u5f97\u51fa\u5e76\u884c\u5ea6，\u56e0\u4e3a\u6709\u4e9b\u5b57\u6bb5\u5c11\u3001\u903b\u8f91\u7b80\u5355\u7684\u4efb\u52a1，\u5355\u5e76\u884c\u5ea6\u4e00\u79d2\u5904\u7406\u51e0\u4e07\u6761\u6570\u636e\u3002\u800c\u6709\u4e9b\u6570\u636e\u5b57\u6bb5\u591a，\u5904\u7406\u903b\u8f91\u590d\u6742，\u5355\u5e76\u884c\u5ea6\u4e00\u79d2\u53ea\u80fd\u5904\u7406 1000 \u6761\u6570\u636e\u3002 <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6700\u597d\u6839\u636e\u9ad8\u5cf0\u671f\u7684 QPS \u538b\u6d4b，<\/span>
\n \u5e76\u884c\u5ea6*1.2 \u500d<\/span>
\n ，\u5bcc\u4f59\u4e00\u4e9b\u8d44\u6e90\u3002 <\/span><\/p>\n

Source \u7aef\u5e76\u884c\u5ea6\u7684\u914d\u7f6e <\/span><\/h4>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6570\u636e\u6e90\u7aef\u662f Kafka，Source \u7684\u5e76\u884c\u5ea6\u8bbe\u7f6e\u4e3a Kafka \u5bf9\u5e94 Topic \u7684\u5206\u533a\u6570\u3002 <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5982\u679c\u5df2\u7ecf\u7b49\u4e8e Kafka \u7684\u5206\u533a\u6570，\u6d88\u8d39\u901f\u5ea6\u4ecd\u8ddf\u4e0d\u4e0a\u6570\u636e\u751f\u4ea7\u901f\u5ea6，\u8003\u8651\u4e0b Kafka \u8981\u6269\u5927\u5206\u533a，\u540c\u65f6\u8c03\u5927\u5e76\u884c\u5ea6\u7b49\u4e8e\u5206\u533a\u6570\u3002<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Flink \u7684\u4e00\u4e2a\u5e76\u884c\u5ea6\u53ef\u4ee5\u5904\u7406\u4e00\u81f3\u591a\u4e2a\u5206\u533a\u7684\u6570\u636e，\u5982\u679c\u5e76\u884c\u5ea6\u591a\u4e8e Kafka \u7684\u5206\u533a\u6570，\u90a3\u4e48\u5c31\u4f1a\u9020\u6210\u6709\u7684\u5e76\u884c\u5ea6\u7a7a\u95f2，\u6d6a\u8d39\u8d44\u6e90\u3002 <\/span><\/p>\n

Transform \u7aef\u5e76\u884c\u5ea6\u7684\u914d\u7f6e <\/span><\/h4>\n

\u27a2 <\/span>
\n Keyby \u4e4b\u524d\u7684\u7b97\u5b50 <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e00\u822c\u4e0d\u4f1a\u505a\u592a\u91cd\u7684\u64cd\u4f5c，\u90fd\u662f\u6bd4\u5982 map\u3001filter\u3001flatmap \u7b49\u5904\u7406\u8f83\u5feb\u7684\u7b97\u5b50，\u5e76\u884c\u5ea6 \u53ef\u4ee5\u548c source \u4fdd\u6301\u4e00\u81f4\u3002 <\/span><\/p>\n

\u27a2 <\/span>
\n Keyby \u4e4b\u540e\u7684\u7b97\u5b50 <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5982\u679c\u5e76\u53d1\u8f83\u5927，\u5efa\u8bae\u8bbe\u7f6e\u5e76\u884c\u5ea6\u4e3a 2 \u7684\u6574\u6570\u6b21\u5e42，\u4f8b\u5982：128\u3001256\u3001512； \u5c0f\u5e76\u53d1\u4efb\u52a1\u7684\u5e76\u884c\u5ea6\u4e0d\u4e00\u5b9a\u9700\u8981\u8bbe\u7f6e\u6210 2 \u7684\u6574\u6570\u6b21\u5e42；\u5927\u5e76\u53d1\u4efb\u52a1\u5982\u679c\u6ca1\u6709 KeyBy，\u5e76\u884c\u5ea6\u4e5f\u65e0\u9700\u8bbe\u7f6e\u4e3a 2 \u7684\u6574\u6570\u6b21\u5e42； <\/span><\/p>\n

Sink \u7aef\u5e76\u884c\u5ea6\u7684\u914d\u7f6e <\/span><\/h4>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Sink \u7aef\u662f\u6570\u636e\u6d41\u5411\u4e0b\u6e38\u7684\u5730\u65b9，\u53ef\u4ee5\u6839\u636e <\/span>
\n Sink \u7aef\u7684\u6570\u636e\u91cf<\/span>
\n \u53ca<\/span>
\n \u4e0b\u6e38\u7684\u670d\u52a1\u6297\u538b\u80fd\u529b<\/span>
\n \u8fdb\u884c\u8bc4\u4f30\u3002\u5982\u679c Sink \u7aef\u662f Kafka，\u53ef\u4ee5\u8bbe\u4e3a Kafka \u5bf9\u5e94 Topic \u7684\u5206\u533a\u6570\u3002 <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Sink \u7aef\u7684\u6570\u636e\u91cf\u5c0f，\u6bd4\u8f83\u5e38\u89c1\u7684\u5c31\u662f\u76d1\u63a7\u544a\u8b66\u7684\u573a\u666f，\u5e76\u884c\u5ea6\u53ef\u4ee5\u8bbe\u7f6e\u7684\u5c0f\u4e00\u4e9b\u3002 <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Source \u7aef\u7684\u6570\u636e\u91cf\u662f\u6700\u5c0f\u7684，\u62ff\u5230 Source \u7aef\u6d41\u8fc7\u6765\u7684\u6570\u636e\u540e\u505a\u4e86\u7ec6\u7c92\u5ea6\u7684\u62c6\u5206，\u6570\u636e\u91cf\u4e0d\u65ad\u7684\u589e\u52a0，\u5230 Sink \u7aef\u7684\u6570\u636e\u91cf\u5c31\u975e\u5e38\u5927\u3002\u90a3\u4e48\u5728 Sink \u5230\u4e0b\u6e38\u7684\u5b58\u50a8\u4e2d\u95f4\u4ef6\u7684\u65f6\u5019\u5c31\u9700\u8981\u63d0\u9ad8\u5e76\u884c\u5ea6\u3002 <\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u53e6\u5916 Sink \u7aef\u8981\u4e0e\u4e0b\u6e38\u7684\u670d\u52a1\u8fdb\u884c\u4ea4\u4e92，\u5e76\u884c\u5ea6\u8fd8\u5f97\u6839\u636e\u4e0b\u6e38\u7684\u670d\u52a1\u6297\u538b\u80fd\u529b\u6765\u8bbe\u7f6e，\u5982\u679c\u5728 Flink Sink \u8fd9\u7aef\u7684\u6570\u636e\u91cf\u8fc7\u5927\u7684\u8bdd，\u4e14 Sink \u5904\u5e76\u884c\u5ea6\u4e5f\u8bbe\u7f6e\u7684\u5f88\u5927，\u4f46\u4e0b\u6e38\u7684\u670d\u52a1\u5b8c\u5168\u6491\u4e0d\u4f4f\u8fd9\u4e48\u5927\u7684\u5e76\u53d1\u5199\u5165，\u53ef\u80fd\u4f1a\u9020\u6210\u4e0b\u6e38\u670d\u52a1\u76f4\u63a5\u88ab\u5199\u6302，\u6240\u4ee5\u6700\u7ec8\u8fd8\u662f\u8981\u5728 Sink <\/span>
\n \u5904\u7684\u5e76\u884c\u5ea6\u505a\u4e00\u5b9a\u7684\u6743\u8861\u3002 <\/span><\/p>\n

<\/h3>\n","protected":false},"excerpt":{"rendered":"

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