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  1. Documentation
  2. DOCS-475

document the nonAtomic flag of MR

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    • Resolution: Done
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    • Server_Docs_20231030
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    Description

      Following was added to wiki
      http://www.mongodb.org/display/DOCS/MapReduce

      • { nonAtomic : 1} - MongoDB 2.1+ If true then the post processing step will not be executed under the write lock. This option makes sense only for the "merge" and "replace" output which take time to process and would lock the database. Using this flag means that partial results will be visible as they are processed.

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            antoine Antoine Girbal
            antoine Antoine Girbal
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              Created:
              Updated:
              Resolved:
              11 years, 20 weeks, 6 days ago