阿里云
>
flink
>
flink使用rocksdb
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?
flink
sql 环境如何配置
使用rocksdb
啊
flink
sql 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flink
sql时候
使用rocksdb
需要配置什么吗?或者需要什么jar包吗
大佬们,在
使用flink
sql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...
使用flink
状态做去重,以
rocksdb
作为状态后端,并行度给了1800,生成大量小文件咋办?
使用flink
状态做去重,以
rocksdb
作为状态后端,并行度给了1800,现在checkpoint生成了大量的小文件咋办?
1
2
>
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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
学习资料
实时数仓入门课程
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立即查看
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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
学习资料
实时数仓入门课程