mapreduce datanode-阿里云

[帮助文档] 如何下线DataNode

随着数据湖技术的普及，越来越多的E-MapReduce（简称EMR）用户选择把数据存放在全托管的数据存储服务中（例如，OSS-HDFS和OSS对象存储等），这样原有的Hadoop集群就不需要很多的DataNode。下线（Decommission）EMR集群的DataNode（Core节点），更多地使...

[帮助文档] DataNode出现Xceiver数量限制异常的解决方案

本文介绍DataNode出现Xceiver数量限制异常的解决方案。

Hadoop 分布式计算框架 MapReduce

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MapReduce中HDFS框架组成中的DataNode的作用是什么？

《Hadoop MapReduce实战手册》一2.4 DataNode下架

本节书摘来异步社区《Hadoop MapReduce实战手册》一书中的第2章，第2.4节，作者：【美】Srinath Perera , Thilina Gunarathne 译者：杨卓荦责编：杨海玲，更多章节内容可以访问云栖社区“异步社区”公众号查看。 2.4 DataNode下架 Hado...

《Hadoop MapReduce实战手册》一2.3 添加一个新的DataNode

本节书摘来异步社区《Hadoop MapReduce实战手册》一书中的第2章，第2.3节，作者：【美】Srinath Perera , Thilina Gunarathne 译者：杨卓荦责编：杨海玲，更多章节内容可以访问云栖社区“异步社区”公众号查看。 2.3 添加一个新的DataNode ...

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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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EMR实时计算实践