实时计算 Flink版均衡的相关内容

问答 2023-12-03 来自：开发者社区

Flink按主键hash 发往不同分区，我同事没实现，说是负载严重不均衡，不知道还有没有其他办法？

Flink按主键hash 发往不同分区，我同事没实现，说是负载严重不均衡，不知道还有没有其他办法，就是0分区一直没数据，都发到2分区了，不知道怎么回事？

问答 2021-12-07 来自：开发者社区

flink tasks在taskmanager上分布不均衡

我们测试环境的flink集群(flink 1.8)，taskmanager有3个，每个有10个slot。然后我有一个job，其并行度是3，预期是会分布到不同taskmanager的slot上(也就是三个taskmanager各分配一个slot，这样能更好的利用cpu资源). 结果发现这个job的三个task全部分配到同一个taskmanager上了。为什么？有什么配置可以改变这...

问答 2021-12-02 来自：开发者社区

flink sql消费kafka消息做数据同步，前期没有出现堆积不均的问题，这两天发现某些kafka分区积压特别多，会是什么原因造成的？怎样解决呢？从统计结果上看，消息还算均匀地打到各个kafka分区上。作业没有开窗和聚合，只是攒一批写一批这样子的。注：作业是跑在k8s上的 | 分区 ID | 客户端 | 最大位点 | 消费位点 | 堆积量 | | 0 | n/a | 155,397,108 .....

问答 2021-12-02 来自：开发者社区

flink job task在taskmanager上分布不均衡怎么办？

flink集群(flink 1.10.1)，taskmanager有4个，每个有10个slot。然后我有2个job，每个并行度是4，预期是会分布到不同taskmanager的slot上(也就是4个taskmanager平均分配2个slot，这样能更好的利用cpu资源). 结果发现这2个job的8个task全部分配到同一个taskmanager上了。为什么？有什么配置可以改变这种行为吗？....

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更新时间 2023-12-11 16:51:07

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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