mapreduce自定义outputformat 的相关内容

[帮助文档] 创建ECS实例并基于EMR-CLI快速部署Gateway环境

Gateway主要用于向计算集群提交任务和进行安全隔离。为了方便部署Gateway环境，E-MapReduce提供了名为EMR-CLI的工具，它基于阿里云ECS来创建实例并部署Gateway环境。当您创建了DataLake、DataFlow或OLAP类型的集群时，可以使用本文档来部署Gateway环...

MapReduce【自定义OutputFormat】

MapReduce默认的输出格式为TextOutputFormat，它的父类是FileOutputFormat，即按行来写，且内容写到一个文本文件中去,但是并不能满足我们实际开发中的所有需求，所以就需要我们自定义OutPutFormat。自定义OutPutFormat输出数据到MySQL、HBase...

Hadoop 分布式计算框架 MapReduce

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35 MAPREDUCE自定义outputFormat

需求现有一些原始日志需要做增强解析处理，流程：1、从原始日志文件中读取数据。2、根据日志中的一个URL字段到外部知识库中获取信息增强到原始日志。3、如果成功增强，则输出到增强结果目录；如果增强失败，则抽取原始数据中URL字段输出到待爬清单目录。分析程序的关键点是要在一个mapreduce程序中根据数...

[帮助文档] 如何使用自定义ECS应用角色访问同账号云资源

本文介绍在E-MapReduce控制台上，通过创建集群时在基础配置页面的高级设置区域设置ECS应用角色，实现以免密的方式访问同账号下的其它资源。例如，对象存储OSS和日志服务SLS。

[帮助文档] 如何自定义Sink

通过自定义Sink，您可以自行扩展更多的数据存储组件，或者根据需求裁剪和优化现有Sink的功能。本文通过示例为您介绍如何自定义Sink。

[帮助文档] 如何自定义Source

通过自定义Source，您可以自行扩展更多的数据源，例如，加密的数据流、自建的服务端口和专有的数据存储中心等。本文通过示例为您介绍如何自定义Source。

五十三、Mapreduce之自定义outputformat案例

案例需求：过滤输出的log日志，包含tuomasi的网址输出到 tuomasi.log文件，不包含 tuomasi 的网址输出到 other.log文件输入数据：期望输出数据：注：通过观...

[帮助文档] 如何将自定义DAG转为Pipeline

DataScience支持您将自定义DAG转换为Pipeline，并在KubeFlow上运行。本文通过示例为您介绍如何将自定义DAG转为Pipeline。

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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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