实时计算 Flink版后端的相关内容

阿里云文档 2024-06-27

Gemini介绍

GeminiStateBackend是一款面向流计算场景的KV存储引擎，作为实时计算Flink版产品的默认状态存储后端（StateBackend）。本文为您介绍企业级状态后端存储GeminiStateBackend的核心设计，以及其与RocksDBStateBackend的性能对比情况。

阿里云文档 2023-10-18

企业级状态后端存储高级配置参数_实时计算 Flink版(Flink)

本文为您介绍在使用企业级状态后端存储GeminiStateBackend时，可能会用到的一些调优参数。

问答 2022-12-16 来自：开发者社区

StateBackend在 Flink 中，状态存储被叫做 StateBackend , 它具备两种能力：（1）在计算过程中提供访问 State 能力，开发者在编写业务逻辑中能够使用StateBackend 的接口读写数据。（2）能够将 State 持久化到外部存储，提供容错能力。一个 State Backend 主要负责两件事：Local State Management(本地状态管理) 和....

问答 2022-07-03 来自：开发者社区

mac m1跑flink 我使用rocksdb状态后端碰到 /librocksdbjni-osx

mac m1跑flink 我使用rocksdb状态后端碰到 /librocksdbjni-osx.jnilib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e')) 这个问题，大神们知道怎么解决吗？

文章 2022-05-18 来自：开发者社区

Flink之状态后端（StateBackends）

每传入一条数据，有状态的算子任务都会读取和更新状态。由于有效的状态访问对于处理数据的低延迟至关重要，因此每个并行任务(子任务)都会在本地维护其状态，以确保快速的状态访问。状态的存储、访问以及维护，由一个可插入的组件决定，这个组件就叫做状态后端（state backend）状态后端主要负责两件事：本地的状态管理将检查点（checkpoint）状态写入远程存储（1）状态后端的分类状态....

问答 2021-12-09 来自：开发者社区

flink的状态后端机制是什么？

问答 2021-12-07 来自：开发者社区

关于flink状态后端使用Rocksdb序列化问题

目前采用flink on yarn， flink版本是1.7.2，hadoop是2.8.5 现在遇到个问题，假设订单对象Order，因使用了窗口等，所以有状态产生，假设现在要在Order中添加几个新的字段，采用savepoint重启任务，就会报错，看错误信息是反序列化问题（rocksdb默认用的kryo），只能kill掉再重启，导致状态丢失，请问有什么解决办法吗？需求不断变更，肯定会定期增加.....

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

共有47条

< 2 3 4 5 >

跳转至： GO

更新时间 2025-05-07 16:01:43

本页面内关键词为智能算法引擎基于机器学习所生成，如有任何问题，可在页面下方点击"联系我们"与我们沟通。

实时计算 Flink版更多后端相关

实时计算 Flink版您可能感兴趣

产品推荐

{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":7,"count":7}]},"card":[{"des":"阿里云实时计算Flink版(Alibaba Cloud Realtime Compute)，基于开源的Apache Flink，优化后成熟稳定的企业版本，提供批流统一、完全托管、高性能的实时智能计算平台。","link1":"https://www.aliyun.com/product/bigdata/product/sc","link":"https://www.aliyun.com/product/bigdata/product/sc","icon":"https://img.alicdn.com/tfs/TB1yy8cD4D1gK0jSZFyXXciOVXa-200-200.png","btn2":"产品文档","tip":"阿里云实时计算推出独享模式，专属定制的计算大脑，2折试用，<a href=\" https://yq.aliyun.com/live/591\" target=\"_blank\">观看发布会</a>          最新产品和实时动态重磅发布 ，<a href=\"https://www.aliyun.com/product/new?source_type=out_sousuo_feature_0716\" target=\"_blank\">立即查看</a>","btn1":"立即开通","link2":"https://help.aliyun.com/product/45029.html","title":"实时计算Flink版"}],"search":[{"txt":"申请免费试用","link":"https://help.aliyun.com/document_detail/72329.html?spm"},{"txt":"管理控制台","link":"https://stream.console.aliyun.com/zh/dark/"},{"txt":"产品文档介绍","link":"https://help.aliyun.com/document_detail/62438.html?spm"},{"txt":"独享模式价格计算器","link":"https://stream.console.aliyun.com/zh/dark/#/profile/calculator"},{"txt":"独享模式2折试用","link":"https://promotion.aliyun.com/ntms/act/rc.html"},{"txt":"技术解读","link":"https://yq.aliyun.com/articles/669177"},{"txt":"产品动态","link":"https://www.aliyun.com/product/new?source_type=out_sousuo_feature_0716"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"icon","icon":"sc","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","title":"实时计算Flink版","des":"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。","btn1":"立即开通","link1":"https://www.aliyun.com/product/bigdata/product/sc","btn3":"产品文档","link3":"https://help.aliyun.com/product/45029.html","btn2":"产品控制台","link2":"https://realtime-compute.console.aliyun.com/#/dashboard","infoGroup":[{"infoName":"实时同步","infoContent":{"firstContentName":"MySQL 到 Hologres","firstContentLink":"https://help.aliyun.com/document_detail/374270.html","lastContentName":"Kafka 到 Hologres","lastContentLink":"https://help.aliyun.com/document_detail/417217.html"}},{"infoName":"功能对比","infoContent":{"firstContentName":"开源Flink对比","firstContentLink":"https://developer.aliyun.com/article/784034?spm=5176.15088477.J_3921126020.9.1a951708XMCptN"}},{"infoName":"成本优化","infoContent":{"firstContentName":"作业自动调优","firstContentLink":"https://help.aliyun.com/document_detail/212422.html","lastContentName":"","lastContentLink":""}},{"infoName":"学习资料","infoContent":{"firstContentName":"实时数仓入门课程","firstContentLink":"https://developer.aliyun.com/learning/course/807?spm=5176.15088477.J_3921126020.7.1a951708XMCptN"}}],"contentLink":"https://www.aliyun.com/product/bigdata/sc"}]}

{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"moduleinfo":{"card_count":[{"count_phone":1,"count":1}],"search_count":[{"count_phone":7,"count":7}]},"card":[{"des":"阿里云实时计算Flink版(Alibaba Cloud Realtime Compute)，基于开源的Apache Flink，优化后成熟稳定的企业版本，提供批流统一、完全托管、高性能的实时智能计算平台。","link1":"https://www.aliyun.com/product/bigdata/product/sc","link":"https://www.aliyun.com/product/bigdata/product/sc","icon":"https://img.alicdn.com/tfs/TB1yy8cD4D1gK0jSZFyXXciOVXa-200-200.png","btn2":"产品文档","tip":"阿里云实时计算推出独享模式，专属定制的计算大脑，2折试用，<a href=\" https://yq.aliyun.com/live/591\" target=\"_blank\">观看发布会</a>          最新产品和实时动态重磅发布 ，<a href=\"https://www.aliyun.com/product/new?source_type=out_sousuo_feature_0716\" target=\"_blank\">立即查看</a>","btn1":"立即开通","link2":"https://help.aliyun.com/product/45029.html","title":"实时计算Flink版"}],"search":[{"txt":"申请免费试用","link":"https://help.aliyun.com/document_detail/72329.html?spm"},{"txt":"管理控制台","link":"https://stream.console.aliyun.com/zh/dark/"},{"txt":"产品文档介绍","link":"https://help.aliyun.com/document_detail/62438.html?spm"},{"txt":"独享模式价格计算器","link":"https://stream.console.aliyun.com/zh/dark/#/profile/calculator"},{"txt":"独享模式2折试用","link":"https://promotion.aliyun.com/ntms/act/rc.html"},{"txt":"技术解读","link":"https://yq.aliyun.com/articles/669177"},{"txt":"产品动态","link":"https://www.aliyun.com/product/new?source_type=out_sousuo_feature_0716"}],"countinfo":{"search":{"length_pc":0,"length":0},"card":{"length_pc":0,"length":0}},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"icon","icon":"sc","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","title":"实时计算Flink版","des":"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。","btn1":"立即开通","link1":"https://www.aliyun.com/product/bigdata/product/sc","btn3":"产品文档","link3":"https://help.aliyun.com/product/45029.html","btn2":"产品控制台","link2":"https://realtime-compute.console.aliyun.com/#/dashboard","infoGroup":[{"infoName":"实时同步","infoContent":{"firstContentName":"MySQL 到 Hologres","firstContentLink":"https://help.aliyun.com/document_detail/374270.html","lastContentName":"Kafka 到 Hologres","lastContentLink":"https://help.aliyun.com/document_detail/417217.html"}},{"infoName":"功能对比","infoContent":{"firstContentName":"开源Flink对比","firstContentLink":"https://developer.aliyun.com/article/784034?spm=5176.15088477.J_3921126020.9.1a951708XMCptN"}},{"infoName":"成本优化","infoContent":{"firstContentName":"作业自动调优","firstContentLink":"https://help.aliyun.com/document_detail/212422.html","lastContentName":"","lastContentLink":""}},{"infoName":"学习资料","infoContent":{"firstContentName":"实时数仓入门课程","firstContentLink":"https://developer.aliyun.com/learning/course/807?spm=5176.15088477.J_3921126020.7.1a951708XMCptN"}}],"contentLink":"https://www.aliyun.com/product/bigdata/sc"}]}}

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