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 2021-12-07 来自：开发者社区

Flink的任务执行时OperatorChain中的数据会输出到哪里？

问答 2021-12-07 来自：开发者社区

Flink的任务执行中的Task从哪里读取数据？读取之后又传到哪里？

问答 2021-12-07 来自：开发者社区

flink sql 数据异常导致任务失败怎么办？

kafka source，一条异常数据就会导致任务失败，这种问题怎么解决呢？以前用DatastreamAPI的话是自己解析，因此可以捕获异常，仅统计非法数据量作为flink的metric指标。现在是基于flink sql直接基于kakfa创建动态表，查询动态表过程json解析失败，导致任务失败。*来自志愿者整理的flink邮件归档

问答 2021-12-07 来自：开发者社区

想要flink任务自动扩缩容有什么办法吗？

请问如果想要flink任务自动扩缩容有什么办法吗，反压的时候自动加资源，然后在自动缩。。。。。*来自志愿者整理的flink邮件归档

问答 2021-12-07 来自：开发者社区

flink 1.11 发布sql任务到yarn session报错

本人试图将flink-sql-gateway(https://github.com/ververica/flink-sql-gateway)升级到1.11支持版本，将flink sql（用到hbase connector）提交到yarn session后运行时报: org.apache.hadoop.hbase.DoNotRetryIOException: java.lang.NoClassDe....

问答 2021-12-07 来自：开发者社区

kafka分区数扩容对flink任务有什么影响吗？

如题，flink任务当前从我了解来看，是直接先查询所有分区信息，然后assign方式指定分区消费的。包括，之前多个任务使用相同group.id消费相同topic并不会相互影响，也是这个原因，因为是通过assign方式消费，而不是分组订阅方式。当然相关的还有一个分区发现机制（我是开启的）。在这种情况下，我想知道topic的分区扩容之后，flink能立即感知到分区多了吗？如果不能，我猜测会...

问答 2021-12-07 来自：开发者社区

Flink中任务出错时处理的步骤是什么？

问答 2021-12-07 来自：开发者社区

Flink中任务出错时JobMaster的策略是什么？

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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