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# Flink教程:01-Flink概述 - 码界Musing
1. flink是什么1.1官网 https://flink.apache.org/ Apache Flink是一个框架和分布式处理引擎,用于对无边界和有边界的数据流进行有状态的计算。Flink被设计为可以在所有常见集群环境中运行,并能以内存速度和任意规模执行计算。 Flink在实现流处理和批处理时,与传统的一些方案完全不同,它…
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This repo is lacking an example of using Apache Beam Python SDK, it only contains Java Beam Application
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### Search before asking
- [X] I searched the [issues](https://github.com/WeBankFinTech/DataSphereStudio/issues) and found no similar issues.
### DSS Component
dss-plugins
### What happened + Wha…
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### Search before asking
- [X] I had searched in the [issues](https://github.com/DataLinkDC/dinky/issues?q=is%3Aissue) and found no similar issues.
### What happened
通过海豚调度并发调用dinky任务,会出现部分…
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### Search before asking
- [X] I have searched in the [issues](https://github.com/NetEase/amoro/issues?q=is%3Aissue) and found no similar issues.
### What would you like to be improved?
cre…
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### What needs to happen?
It is found some runners does not support reporting metrics in
1. BoundedSource.split()
* Direct runner
* non-portable Flink runner
* non-portable Spark runner
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Abacn updated
4 weeks ago
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## Expected behavior
i hope this proble solved,print result like this,Thanks!:
+----+--------------------------------+--------------------------------+
| op | geom_polygon | …
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### Search before asking
- [X] I had searched in the [issues](https://github.com/DataLinkDC/dinky/issues?q=is%3Aissue) and found no similar issues.
### What happened
Dinky正常运行Flink任务3天,第4天的时候与Flin…
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### Search before asking
- [X] I had searched in the [issues](https://github.com/apache/dolphinscheduler/issues?q=is%3Aissue) and found no similar issues.
### What happened
创建flink stream 任务无法启动成功…
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I use Flink Table SDK to select iceberg table. Set hivecatalog to usercatalog, but looks like the default_iceberg catalog is still used.
The error message is as flollows:
```
10:42:41,886 INFO …