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Posted to dev@sqoop.apache.org by "Qian Xu (JIRA)" <ji...@apache.org> on 2014/07/18 06:27:04 UTC

[jira] [Created] (SQOOP-1390) Convert Sqoop format to Parquet format via MapReduce

Qian Xu created SQOOP-1390:
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             Summary: Convert Sqoop format to Parquet format via MapReduce
                 Key: SQOOP-1390
                 URL: https://issues.apache.org/jira/browse/SQOOP-1390
             Project: Sqoop
          Issue Type: Sub-task
            Reporter: Qian Xu


Parquet files keep data in contiguous chunks by column, appending new records to a dataset requires rewriting substantial portions of existing a file or buffering records to create a new file. So while Parquet may have storage and query benefits, it doesn't make sense to write to it directly from record-based tools. We'd consider to use Kite SDK to simplify the handling of Parquet specific things.

The following listed the major areas for this:
* Implement ParquetImportMapper
* Hook up the ParquetOutputFormat and ParquetImportMapper in the import job.



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