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  1. Core Server
  2. SERVER-970

MapReduce:add ability to process many collections at once

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    • Icon: New Feature New Feature
    • Resolution: Duplicate
    • Icon: Minor - P4 Minor - P4
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    Description

      MapReduce would be more useful if it supports many collections as data source instead of just one. This feature would turn MongoDB into a full replacement for Hadoop in sharded environments, and will add capabilities to process largest amount of data.

      I think it would be even more useful if MapReduce can process collections from different databases as well, because the number of collections in a databases is limited by default.

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            crodas César D. Rodas
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