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  1. Cassandra
  2. CASSANDRA-2878

Allow map/reduce to use server-side query filters

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Details

    • New Feature
    • Status: Resolved
    • Urgent
    • Resolution: Fixed
    • 1.1.0
    • None

    Description

      Currently, when running a MapReduce job against data in a Cassandra data store, it reads through all the data for a particular ColumnFamily. This could be optimized to only read through those rows that have to do with the query.

      Attachments

        Issue Links

          blocks

          Improvement - An improvement or enhancement to an existing feature or task. CASSANDRA-2246 Enable Pig to use indexed data as described in CASSANDRA-2245

          • Low -
          • Resolved
          depends upon

          New Feature - A new feature of the product, which has yet to be developed. CASSANDRA-1125 Filter out ColumnFamily rows that aren't part of the query (using a KeyRange)

          • Low -
          • Resolved
          is blocked by

          New Feature - A new feature of the product, which has yet to be developed. CASSANDRA-1600 Merge get_indexed_slices with get_range_slices

          • Normal -
          • Resolved
          is duplicated by

          Improvement - An improvement or enhancement to an existing feature or task. CASSANDRA-2245 Enable map reduce to use indexes for ColumnFamilyInputFormat

          • Low -
          • Resolved

          Activity

            People

              jbellis Jonathan Ellis
              mck Michael Semb Wever
              Jonathan Ellis
              Brandon Williams
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              Dates

                Created:
                Updated:
                Resolved: