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  1. Parquet
  2. PARQUET-197

parquet-cascading and the mapred API does not create metadata file

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.6.0
    • Component/s: None
    • Labels:
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      Description

      Repro: run a scalding job that writes parquet files to a folder. no _metadata and _common_metadata file is created

      Impact: potential performance problem if parquet metadata is read from client side, which is the case for sparkSQL

      casue: the metatdata writing logic is in the mapreduce API but not the mapred API of parquet.

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              • Assignee:
                tianshuo Tim
                Reporter:
                tianshuo Tim
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                • Created:
                  Updated:
                  Resolved: