实时计算 Flink版oom 的相关内容

问答 2022-07-07 来自：开发者社区

请问怎么在Flink OOM的时候生成HeapDump？

问答 2022-02-15 来自：开发者社区

看源码有个小问题，RocksDBStateBackend 的 writeOptions 都把 disableWAL 设为 true, 是为了加速么？那如果地址放在内存盘里，是不是这里就不能这样了？另外现在 Flink 状态管理很粗放，HeapKeyedStateBackend & DefaultOperatorStateBackend 都是直接放入堆内存且各种 copy，经常导致 OOM，这点 dataArtisans 的同学说暂时没太多改进计划...

转自钉钉群21789141：看源码有个小问题，RocksDBStateBackend 的 writeOptions 都把 disableWAL 设为 true, 是为了加速么？那如果地址放在内存盘里，是不是这里就不能这样了？另外现在 Flink 状态管理很粗放，HeapKeyedStateBackend & DefaultOperatorStateBackend 都是直接放入堆内存且各种 ...

问答 2021-12-06 来自：开发者社区

flink 1.11 local execution oom问题

我在使用1.11版本在本地idea起一个作业时，并发为1，抛出了如下关于内存的异常。。问题是之前从来没有显示配置过taskmanager的memory参数，这是为何？感觉由1.10升级到1.11问题还是挺多的。。我尝试增加了JVM参数，增加DirectMemory内存配置，还是没有作用，请教大神帮忙看下。 Exception in thread "main" java.lang.OutOfM.....

文章 2021-01-06 来自：开发者社区

详解 Flink 容器化环境下的 OOM Killed

作者：林小铂在生产环境中，Flink 通常会部署在 YARN 或 k8s 等资源管理系统之上，进程会以容器化（YARN 容器或 docker 等容器）的方式运行，其资源会受到资源管理系统的严格限制。另一方面，Flink 运行在 JVM 之上，而 JVM 与容器化环境并不是特别适配，尤其 JVM 复杂且可控性较弱的内存模型，容易导致进程因使用资源超标而被 kill 掉，造成 Flink 应用的不....

问答 2019-04-12 来自：开发者社区

求教经验：Flink程序怎么排查OOM问题

现在写的一个flink程序偶尔会出现OOM，但是不知道这问题该如何查起，报错日志可能并不是引起OOM的根本原因。又或者由于多个算子运行在同一个taskmanager上，可能是被另一个算子占用了太多内存。等等。想请教下遇到OOM的问题时，大家都是怎样去进行问题分析排查以及优化的，希望大佬们传授下经验，谢谢。

问答 2018-10-10 来自：开发者社区

请教一下，Standalone的Flink程序运行的时候出OOM了，想DUMP出堆日志来看，请问在Flink里面怎么做类似于HeapDumpOnOutOfMemoryError 的事情？

转自钉钉群21789141：请教一下，Standalone的Flink程序运行的时候出OOM了，想DUMP出堆日志来看，请问在Flink里面怎么做类似于HeapDumpOnOutOfMemoryError 的事情？./flink run /Users/test/project/FlinkSampleMvn/target/FlinkSampleMvn-1.0-SNAPSHOT.jar -yD en....

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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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