sqoop-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Qian Xu (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SQOOP-1390) Convert Sqoop format to Parquet format via MapReduce
Date Wed, 23 Jul 2014 01:30:40 GMT

     [ https://issues.apache.org/jira/browse/SQOOP-1390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Qian Xu reassigned SQOOP-1390:

    Assignee: Qian Xu

> 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
>          Components: tools
>            Reporter: Qian Xu
>            Assignee: 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.

This message was sent by Atlassian JIRA

View raw message