实时计算 Flink版任务的相关内容

问答 2021-10-27 来自：开发者社区

FLink任务报MapState currently isn't supported异常

异常信息：org.apache.flink.util.StateMigrationException: The new serializer for a MapState requires state migration in order for the job to proceed. However, migration for MapState currently isn't support....

问答 2021-10-27 来自：开发者社区

Flink任务报StateMigrationException异常

报错信息：org.apache.flink.util.StateMigrationException: The new state serializer cannot be incompatible

问答 2021-10-27 来自：开发者社区

Flink任务报跳过当前checkpoint异常

报错信息：Received checkpoint barrier for checkpoint before completing current checkpoint . Skipping current checkpoint

问答 2021-10-27 来自：开发者社区

Flink任务启动报IOException异常

任务报错：java.io.IOException: Too many open file

问答 2021-10-27 来自：开发者社区

flink任务遇到akka超时异常

akka.pattern.AskTimeoutException: Ask timed out on [Actor[akka://...]] after [10000 ms]

问答 2021-10-21 来自：开发者社区

Flink任务启动RuntimeException报错

启动Flink任务的时候报错Caused by: java.lang.RuntimeException: Couldn't deploy Yarn cluster,system times on machines may be out of sync

文章 2021-09-27 来自：开发者社区

如何迁移开源 Flink 任务到实时计算Flink版？实战手册来帮忙！

作为国内最早布局实时计算技术方向的企业之一，早在2016年阿里巴巴就已经开始大规模上线使用实时计算产品。阿里云实时计算Flink版（Alibaba Cloud Realtime Compute for Apache Flink，Powered by Ververica）是阿里云基于 Apache Flink 构建的企业级、高性能实时大数据处理系统，由 Apache Flink 创始团队官方出品，....

问答 2021-09-23 来自：开发者社区

我在使用flink读取savepoint里keystate数据时,大状态任务就卡住,加大资源也不管用

我在用flink 的state processor api修改savepoint里的keystate数据时，state数据量小就可以执行完，数据量大读取一部分数据后就一直running状态，不读新数据，加大资源并行度也不能解决，任务也不报错。

问答 2021-08-29 来自：开发者社区

自建的flink集群向ADB Mysql中写入数据时，由于写入任务的相互影响，导致背压过大，如何解决

ADB Mysql对于flink1.9有专有的flink sink jar包吗？我这边写入ADB Mysql时，由于写入任务的相互影响，在写入任务密集的时间段，flink任务的背压比较高，提高flink sink算子的并行度也并未出现缓解，使用的是自定义sink，德鲁伊连接池，Jdbc连接方式往ADB Mysql中进行写入的；想了解一下如何能消除flink任务的背压；

问答 2021-03-01 来自：开发者社区

flink任务如何在一个程序中添加多个sink或source？

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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