实时计算 Flink版状态的相关内容

问答 2021-12-06 来自：开发者社区

flink1.9状态及作业迁移

flink1.9的检查点或保存点中会保留hadoop集群的nameservice数据吗？现在想将一个集群的flink作业迁移到另一个集群，但两个集群的nameservice名称不一样，迁移会有问题吗？如果有问题的话对应状态保存的nameservice可以修改吗？或者说迁移的时候还有哪些其他需要注意的问题？ *来自志愿者整理的flink邮件归档

问答 2021-12-06 来自：开发者社区

flink sql子查询状态清理不掉

大家好，我现在程序里面有像这样一段sql： select day, count(id), sum(v1) from ( select day ...

问答 2021-12-06 来自：开发者社区

Flink状态调试

Hi，各位大佬们，请教一下： Flink的checkpoint怎么调试啊，我想看程序目前的状态，拿到了checkpoint的文件，打开后有一些东西是乱码，没有结构性，有方法吗？ *来自志愿者整理的flink邮件归档

问答 2021-12-05 来自：开发者社区

我写了一个带状态的function 采用了如下cp配置： env.enableCheckpointing(5000L, CheckpointingMode.EXACTLY_ONCE); env.getCheckpointConfig().setMinPauseBetweenCheckpoints(100L); env.getCheckpointConfig().setCheckpointTime....

问答 2021-12-03 来自：开发者社区

无法创建taskmanager flink web界面一致停留在created状态是什么情况？

日志报错如下： 2020-05-30 19:07:31,418 INFO org.apache.flink.yarn.YarnTaskExecutorRunner - -------------------------------------------------------------------------------- 2020-05-30 19:07:31,418 INFO org......

问答 2021-12-03 来自：开发者社区

flink CheckPoint 状态下，每次chk的数据保存在哪里了？

问答 2021-12-03 来自：开发者社区

Flink与Yarn的状态一致性问题

最近在使用Flink-1.11.1 On Yarn Per Job模式提交简单的kafka->mysql任务时，发现当有脏数据或mysql主键限制等等原因导致Flink任务状态置为Failed时，Yarn application仍处于运行状态疑问是Flink任务处于Failed或Finished时，不会反馈自身状态给Yarn吗？期待大佬解惑，谢谢*来自志愿者整理的flink邮件归档

问答 2021-12-03 来自：开发者社区

flink rocksdb状态后端物理内存溢出的问题

请教一下，我采用flink 1.8版本，状态后端采用rocksdb方式，任务运行一段时间后containter会出现物理内存溢出，单个containter的内存为10G、堆内存使用很少仅1G左右。这种情况下我应该如何分析内存占用情况？*来自志愿者整理的flink邮件归档

问答 2021-12-02 来自：开发者社区

flink 1.9 状态后端为FsStateBackend，修改checkpoint时出现警告

Attachment(s): ReorganizeListState.java 4 KB*来自志愿者整理的flink邮件归档

问答 2021-12-02 来自：开发者社区

Flink 从checkpoint恢复时，部分状态没有正确恢复

Hi Flink 社区：我们的Flink版本是1.9.2，用的是blink planer，我们今天遇到一个问题，目前没有定位到原因，现象如下：手动重启任务时，指定了从一个固定的checkpoint恢复时，有一定的概率，一部分状态数据无法正常恢复，启动后Flink任务本身可以正常运行，且日志中没有明显的报错信息。具体现象是：type=realshow的数据没有从状态恢复，也就是从0开始累加，....

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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