hadoop spark hive 的相关内容

阿里云文档 2025-06-05

使用Hadoop命令操作OSS/OSS-HDFS

在使用阿里云EMR Serverless Spark的Notebook时，您可以通过Hadoop命令直接访问OSS或OSS-HDFS数据源。本文将详细介绍如何通过Hadoop命令操作OSS/OSS-HDFS。

阿里云文档 2025-04-03

如何通过ES-Hadoop实现Spark读写阿里云Elasticsearch数据

Spark是一种通用的大数据计算框架，拥有Hadoop MapReduce所具有的计算优点，能够通过内存缓存数据为大型数据集提供快速的迭代功能。与MapReduce相比，减少了中间数据读取磁盘的过程，进而提高了处理能力。本文介绍如何通过ES-Hadoop实现Hadoop的Spark服务读写阿里云Elasticsearch数据。

文章 2023-12-20 来自：开发者社区

【大数据技术Hadoop+Spark】Hive基础SQL语法DDL、DML、DQL讲解及演示（附SQL语句）

Hive基础SQL语法1：DDL操作DDL是数据定义语言，与关系数据库操作相似，创建数据库CREATE DATABASE|SCHEMA [IF NOT EXISTS] database_name显示数据库SHOW databases；查看数据库详情DESC DATABASE|SCHEMA database_name切换数据库USE database_name修改数据库ALTER (DATABAS....

文章 2023-12-20 来自：开发者社区

【大数据技术Hadoop+Spark】Hive数据仓库架构、优缺点、数据模型介绍（图文解释超详细）

一、Hive简介Hive起源于Facebook，Facebook公司有着大量的日志数据，而Hadoop是实现了MapReduce模式开源的分布式并行计算的框架，可轻松处理大规模数据。然而MapReduce程序对熟悉Java语言的工程师来说容易开发，但对于其他语言使用者则难度较大。因此Facebook开发团队想设计一种使用SQL语言对日志数据查询分析的工具，而Hive就诞生于此，只要懂SQL语言，....

阿里云文档 2023-09-13

如何在EMR的Hadoop集群中运行Spark作业对接DataHub数据_EMR on ECS_开源大数据平台 E-MapReduce(EMR)

本文介绍如何在E-MapReduce的Hadoop集群，运行Spark作业消费DataHub数据、统计数据个数并打印出来。

文章 2022-12-30 来自：开发者社区

HADOOP MapReduce 处理 Spark 抽取的 Hive 数据【解决方案一】

开端：今天咱先说问题，经过几天测试题的练习，我们有从某题库中找到了新题型，并且成功把我们干趴下，昨天今天就干了一件事，站起来。沙问题？java mapeduce 清洗 hive 中的数据，清晰之后将driver代码进行截图提交。坑号1: spark之前抽取的数据是.parquet格式的，对 mapreduce 不太友好，我决定从新抽取，还是用spark技术，换一种文件格式坑号2....

问答 2022-04-15 来自：开发者社区

hadoop HA 集群中使用zeppline的Spark sql访问Hive数据失败

报错信息如下：

文章 2022-02-15 来自：开发者社区

【Hadoop Summit Tokyo 2016】利用电力公司智能电表数据比较Spark SQL与Hive

本讲义出自Yusuke Furuyama与Yang Xie在Hadoop Summit Tokyo 2016上的演讲，主要分享了对于电力公司智能电表数据的数据分析案例，并分享了利用MapReduce与Spark 1.6进行计算的性能比较情况，并对于Spark 2.0的进化情况进行了分享。

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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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