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  1. Core Server
  2. SERVER-24274

Create a command to provide query bounds for partitioning data in a collection

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Details

    • Improvement
    • Status: Backlog
    • Major - P3
    • Resolution: Unresolved
    • None
    • None
    • Querying
    • None

    Description

      Both the Spark and Hadoop connectors have custom code to partition data in a collection so they can be processed externally in parallel.

      This requires either SplitVector for non sharded systems or access to query the config database for sharded systems. The permissions to determine the partitions may not be possible in a sharded or hosted MongoDB setup.

      Adding a command that could provide the min, max query bounds for splitting a collection into multiple parts would allow any external framework to query in parallel each partition and process in parallel.

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          is duplicated by

          New Feature - A new feature of the product, which has yet to be developed. SERVER-25289 Make it possible to select a subset of documents based on the shard key

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

          New Feature - A new feature of the product, which has yet to be developed. SERVER-28667 Provide a way for the Aggregation framework to query against intervals of a hashed index

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

          Task - A task that needs to be done. SERVER-33998 Remove the parallelCollectionScan command

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

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              backlog-query-execution Backlog - Query Execution
              ross@mongodb.com Ross Lawley
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              Dates

                Created:
                Updated: