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  1. Hive
  2. HIVE-4396

Create a efficient method to create a deep copy of a mapredwork

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Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • None
    • Query Processor
    • None

    Description

      In many optimization steps, we create a copy of the query plan and then change some parts of it.
      Currently, the only reliable way to do so is to serialize and deserialize it, which is fairly expensive.
      It would be very useful to have a cheaper method to do the same.

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-5380 Non-default OI constructors should be supported for backwards compatibility

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-5263 Query Plan cloning time could be improved by using Kryo

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              namit Namit Jain
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                Created:
                Updated: