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  1. Documentation
  2. DOCS-4850

parallelCollectionScan does not work with mongos, but this limitation isn't documented

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • mongodb-2.6, mongodb-3.0
    • manual
    • None
    • 2
    • Docs Sprint 16 - Ending 3/13
    • true

    Description

      The parallelCollectionScan command does not work over mongos.

      This is mentioned in passing on the Java driver Getting Started page (http://docs.mongodb.org/ecosystem/tutorial/getting-started-with-java-driver/#parallelscan), specifically here:

      ParallelScan does not work via mongos.

      It is also mentioned on Google Groups here:

      https://groups.google.com/forum/#!topic/mongodb-user/Ss-uhnUbUbU

      However, this limitation is not documented on the page for the parallelCollectionScan command itself (http://docs.mongodb.org/manual/reference/command/parallelCollectionScan/)

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            andrew.aldridge@mongodb.com Andrew Aldridge
            victor.hooi Victor Hooi
            Jess Mokrzecki Jess Mokrzecki
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            Dates

              Created:
              Updated:
              Resolved:
              7 years, 47 weeks, 6 days ago