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  1. Parquet
  2. PARQUET-166

Validate parquet row group size and HDFS block size

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: parquet-mr
    • Labels:
      None

      Description

      The OutputFormat should verify that parquet.block.size < dfs.blocksize to avoid bad performance. In addition, we could check that (dfs.blocksize % parquet.block.size) < 1MB to ensure that some number of row groups is approximately the size of an HDFS block.

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              • Assignee:
                Unassigned
                Reporter:
                rdblue Ryan Blue
              • Votes:
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                Dates

                • Created:
                  Updated: