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问答 2016-02-19 来自：开发者社区

MongoDB运行MapReduce任务

MongoDB中能运行MapReduce任务,在分片的环境中.他们运行MapReduce任务的范围呢? 1.是分片的机器才能运行MapReduce任务2.集群中所有的机器[分片 and 备份]都可以运行MapReduce3.能不能借助其他能运行M/R的集群[Hadoop]来运行MapReduce希望大家讨论一下...

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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