hadoop运行job 的相关内容

文章 2024-07-11 来自：开发者社区

Hadoop中运行Job

在Hadoop中运行Job的一般步骤如下：编写MapReduce程序：首先，你需要有一个MapReduce程序。这可以是Java类或使用其他支持的语言编写的。打包你的程序：你需要将你的MapReduce程序和所有依赖项打包成一个jar文件。你可以使用Maven或Ant等工具来帮助你完成这个任务。准备输入数据：你需要将你的输入数据放入HDFS（Hadoop分布式文件系统）中。你...

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。

阿里云文档 2022-10-28

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...

问答 2022-04-15 来自：开发者社区

hadoop mapreduce运行job task报OutOfMemoryError错误

hadoop mapreduce运行job task报OutOfMemoryError错误java.lang.OutOfMemoryError: GC overhead limit exceeded at java.lang...

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更新时间 2024-07-12 15:36:51

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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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