flink使用rocksdb

数据处理能力相差 2.4 倍？Flink 使用 RocksDB 和 Gemini 的性能对比实验

开源 Flink 的状态存储主要包括 RocksDB 和 Heap 两种，而在去年的 Flink Forward 大会上我们了解到阿里云 VVP 产品自研了一款更高性能的状态存储插件 Gemini，并对其进行了测试和试用。在本篇文章中我们将对 RocksDB、Heap 和 Gemini 在...

flink使用RocksDB增量checkpoints，程序运行一段时间报出：超出物理内存怎么处理？

最近刚刚尝试使用flink 1.9.1 的RocksDB做增量checkpoints；在程序种设置：val backend=new RocksDBStateBackend("hdfs:/xx/",true)backend.setPredefinedOptions(PredefinedOptions.SPINNING_DISK_OPTIMIZED_HIGH_MEM)并用MapState保存...

flink使用RocksDB增量checkpoints，程序运行一段时间报出：超出物理内存

这面还想多请教一下：我程序中每来一条数据都会去读MapState然后覆盖写入新的时间戳，刚刚发现某一条数据读出了两条一样的时间戳，我推断是第一个线程读出来后还没...所以想请问flink中MapState是线程安全的吗？来自志愿者整理的flink邮件归档

大佬请问flink使用rocksdb 发现打开的文件数有3W为啥有这么多呢，sst文件可以看到内容...

大佬请问flink使用rocksdb 发现打开的文件数有3W为啥有这么多呢，sst文件可以看到内容吗？

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？

flinksql 环境如何配置使用rocksdb啊

关于flink状态后端使用Rocksdb序列化问题

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...

大佬们,在使用flinksql时候使用rocksdb需要配置什么吗?或者需要什么jar包吗

关于使用Flink RocksDBStateBackend问题

Hi 在使用RocksDBStateBackend过程中，有些问题想请教一下采用自定义的optionsFactory后，flink-conf.yaml配置文件中的RocksDB Configurable Options相关参数配置不生效，请问一下要如何使其中的state.backend.rocksdb.writebuffer.size等...

flinksqlAPI的状态设置永不超时，是否也可以使用rocksdb作为状态后端呢？

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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。

实时同步

功能对比

成本优化