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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。

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如何解决Dataphin脚本任务运行报错

问题描述Dataphin脚本任务运行报错“Error while processing statement: FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask“。解决方案上...

文章 2022-06-15 来自：开发者社区

Hadoop集群搭建记录 | 云计算[CentOS7] | 伪分布式集群 Master运行WordCount

写在前面本系列文章索引以及一些默认好的条件在传送门step1 eclipse访问hadoop首先需要明确eclipse安装目录，然后将hadoop-eclipse-plugin_版本号.jar插件放在安装目录的dropins下关于插件，可以通过博主上传到csdn的免费资源获取，链接具体版本可以自己选择：step2 重启并配置eclipse在eclipse界面中依次选择：Window→show v....

文章 2022-05-28 来自：开发者社区

三十二、基于Hadoop伪分布式运行Hadoop自带wordcount案例

环境背景：Hadoop伪分布式已经搭建完成Hadoop2.6.0Hadoop伪分布搭建见：Hadoop伪分布式的搭建详情https://blog.csdn.net/m0_54925305/article/details/118650350?spm=1001.2014.3001.5502https://blog.csdn.net/m0_54925305/article/details/118650....

问答 2016-11-22 来自：开发者社区

hadoop伪分布式运行wordcount出错

在服务器上配置了一下伪分布式的hadoop环境，执行它自带的mapreduce都出错了，知道你们很厉害，特意问一下。新手并不太会呢,帮看看好不。有一些节点自己就莫名其妙的死了，我晚上推出集群都不关，第二天在连接ssh，集群自己就关了是为啥和环境有关吗 [gaojunyu@gaojunyu hadoop-2.6.0]$ bin/hadoop jar /home/gaojunyu/app/hadoo....

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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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