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  1. Documentation
  2. DOCS-9834

MapReduce output on sharded clusters

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Won't Do
    • None
    • None
    • manual, Server
    • None

    Description

      As per SERVER-7926, using MapReduce output could end into a serious data consistency issues.

      The documentation must warn and push users away from using MapReduce on sharded clusters.

      Attachments

        Issue Links

          duplicates

          Task - A task that needs to be done. DOCS-12899 Investigate changes in SERVER-42134: Deprecate mapparams, out.sharded, and out.nonAtomic arguments to mapReduce

          • Major - P3 - Major loss of function.
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. SERVER-7926 Map Reduce with sharded output can apply reduce on duplicate documents if a migration happened

          • Major - P3 - Major loss of function.
          • Closed

          Task - A task that needs to be done. SERVER-31766 Deprecate creation of new sharded output collection in mapReduce

          • Major - P3 - Major loss of function.
          • Closed

          Activity

            People

              Unassigned Unassigned
              ricardo.lorenzo Ricardo Lorenzo
              Jess Mokrzecki Jess Mokrzecki
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              Dates

                Created:
                Updated:
                20 weeks, 5 days ago