hadoop技术优化的相关内容

文章 2022-10-21 来自：开发者社区

【Hadoop技术篇】hive的优化，经典面试

目录Map Join作用触发条件Bucket-Map Join作用触发条件SMB Join (sort merge bucket)作用触发条件Join-Skew关联查询时数据倾斜运行时优化编译时优化Unoin优化GroupBy-Skew统计时数据倾斜Map先行打散MR Job随机数打散Map Join作用大表和小表关联查询时，提升性能，避免数据倾斜。触发条件-- 1、开启Ma.....

文章 2016-04-19 来自：开发者社区

基于Hadoop的云盘系统客户端技术难点之一上传和下载效率优化

文章 2016-04-19 来自：开发者社区

基于Hadoop的云盘系统客户端技术难点之三小文件存储优化

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更新时间 2024-03-02 09:27:29

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开源大数据平台 E-MapReduce

开源大数据平台 E-MapReduce（简称“EMR”）是云原生开源大数据平台，向客户提供简单易集成的Hadoop、Hive、Spark、Flink、Presto、ClickHouse、StarRocks、Delta、Hudi等开源大数据计算和存储引擎服务。

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