实时计算 Flink版后端重启的相关内容

问答 2025-05-06 来自：开发者社区

flink用rocksdb作为状态后端，taskmanager重启后rocksdb目录文件会被清空

flink使用rocksdb作为状态后端，当taskmanager重启后，rocksdb中的文件会被清空，是正常的吗？flink.conf关键配置如下： execution.checkpointing.externalized-checkpoint-retention: RETAIN_ON_CANCELLATIONexecution.checkpointing.max-concurrent-ch....

问答 2024-04-10 来自：开发者社区

java flink + kafka,后端状态放hdfs后,每次重启服务,又从最早的消息开始消费问题

java flink + kafka,后端状态放hdfs后,每次重启服务,又从最早的消息开始消费，不是每次会提交检查点到hdfs吗，重启后,不应从最新的检查点开始处理么？

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更新时间 2025-05-07 12:08:10

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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

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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