实时计算 Flink版任务的相关内容

返回频道实时计算 Flink版任务

问答 2023-01-15 来自：开发者社区

当前版本的Flink Mysql CDC, 支持动态更改SQL任务吗？

当前版本的Flink Mysql CDC, 支持动态更改SQL任务吗，Mysql 数据组装写入ES时想要动态新增字段，重新提交flink 初始化数据的时间开销太大了，总共需要向写入ES数据2千万条数据

问答 2023-01-15 来自：开发者社区

对于Flink CDC，库里有一些没有主键的表，也并没有添加这些表的任务，但产生了错，该怎么处理呢?

对于Flink CDC，库里有一些没有主键的表，也并没有添加这些表的任务，但产生了这样错，我该怎么处理呢?

问答 2023-01-15 来自：开发者社区

对于Flink CDC，从丢失时刻的checkpoint重启任务，丢失的数据又获取到了。有排查方向吗

目前生产flink14+cdc2.3+mongo4，使用datastream api的方式进行整库订阅，出现数据丢失的情况。在日志中没有任何报错异常。但是我发现数据丢失后，从丢失时刻的checkpoint重启任务，丢失的数据又获取到了。也尝试调了poll.await.time.ms、heartbeat.interval.ms等参数，没有效果。请问有什么排查方向吗?

问答 2023-01-15 来自：开发者社区

对于Flink CDC，mysql分库分表入iceberg的V2表，任务重启时为啥历史数据重复写入？

对于Flink CDC，mysql分库分表入iceberg的V2表，在任务重启时为啥历史数据会重复写入，并且时区有的正确有的-8小时，有大佬知道怎么解决吗

问答 2023-01-15 来自：开发者社区

多个flink任务,sink-mysql同一个表,会不会锁表呢?

问答 2023-01-08 来自：开发者社区

请问flink cdc 任务怎么做持久化啊?

请问flink cdc 任务怎么做持久化啊? 目前我重启flink后，之前在执行中的任务就丢了 state.backend: rocksdb

问答 2023-01-08 来自：开发者社区

如何可以感知flink任务挂掉或者让他在集群查询起task？

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更新时间 2025-04-14 16:47:12

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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。

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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