实时计算 Flink版自定义的相关内容

返回频道实时计算 Flink版自定义

问答 2023-09-28 来自：开发者社区

请教一下Flink CDC自定义converter有没有遇到过classnotfound的情况？

问答 2023-09-27 来自：开发者社区

在Flink中 cdas 是否可以增加类似paimon的这个选项和增加自定义前缀名吗？

问答 2023-09-20 来自：开发者社区

Flink-sql中，接收源表数据，做一个聚合处理（自定义的udaf函数）这种情况会是什么问题呢？

Flink-sql中，接收源表数据，做一个聚合处理（自定义的udaf函数），然后sink到redis中1.源表新增数据，会sink到redis2.修改数据（任务启动前几已经存在的数据），udaf函数中最终会调用getValue方法，有打印结果值，但udaf函数好像不会取到返回值输出，结果表不会有数据输出请问2这种情况会是什么问题呢？

问答 2023-09-20 来自：开发者社区

Flink CDC中我自定义的udaf函数，为什么只有+I的数据（后期修改）可以做统计？

Flink CDC中我自定义的udaf函数，为什么只有+I的数据（后期修改）可以做统计，对于任务启动前已经存在的数据修改-U和+U的数据，没有进行聚合，这个可以怎么来排查还是需要自己开发呢？有什么具体的案例吗？

问答 2023-09-19 来自：开发者社区

Flink CDC中我自定义的udaf函数，为什么只有+I的数据可以做统计？

Flink CDC中我自定义的udaf函数，为什么只有+I的数据可以做统计，对于-U和+U的数据，没有进行聚合，这个可以怎么来排查呢？一个简单的实现

问答 2023-09-19 来自：开发者社区

那在flink中映射什么类型？也自定义吗，flink好像不支持自定义类型的DDL？

问答 2023-09-13 来自：开发者社区

请教下，我自定义了一个 UDF，Flink这个是为什么？有办法优化么？

SELECT JSON_VALUE(evt, '$._from') AS _from, JSON_VALUE(evt, '$._to') AS _to,FROM ( SELECT udf_foo (paramA, paramB) AS evt FROM ( VALUES ('AAAA', 'BBBB') ) AS t...

问答 2023-09-13 来自：开发者社区

Flink CDC自定义influxdb2连接器的话，可以参考哪个实现来做呢？

问答 2023-09-13 来自：开发者社区

Flink CDC支持在原库自定义的数据类型吗，不支持的话，自己改源码能否实现？

"Flink CDC支持在原库自定义的数据类型吗，不支持的话，自己改源码能否实现？"

问答 2023-09-12 来自：开发者社区

Flink CDC 自定义时间转换？

Flink CDC 自定义时间转换？import io.debezium.spi.converter.CustomConverter;import io.debezium.spi.converter.RelationalColumn;import org.apache.kafka.connect.data.SchemaBuilder; import java.time.*;import java....

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实时计算Flink版

阿里云实时计算Flink版(Alibaba Cloud Realtime Compute)，完全兼容开源的Apache Flink，比开源性能提升2～3倍，提供了完整的告警、监控、日志的解决方案、提升开发效率且无运维成本，并有社区专家提供技术支持。

立即开通

产品控制台

产品文档

实时同步

MySQL 到 Hologres

Kafka 到 Hologres

功能对比

开源Flink对比

成本优化

作业自动调优