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  1. Sqoop (Retired)
  2. SQOOP-3476

Allow table choose in --map-column-hive parameter while importing to MySQL

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Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 1.4.7
    • None
    • connectors/mysql
    • MySQL 8.0, Sqoop 1.4.7, Hive 3.1.1

    Description

      Hi there, 

      o achieve that I've used first the following command line:

       sqoop-import-all-tables
      --connect jdbc:mysql://IP:porta/mydatabase
      --username myusername
      -p
      --hive-import
      --direct

      But there are some incompatibility between data type in MySQL and Hive, and I received the following error message:
       ERROR tool.ImportAllTablesTool: Encountered IOException running import job: java.io.IOException: Hive does not support the SQL type for column rowguid.
      So, looking at Sqoop 1.4.7 documentation, I noticed that there is a parameter 

      --map-column-hive <name-of-column-to-map>.

      So, I added this to my command line: 

      --map-column-hive rowguid=binary 

      and got this new error:

       ERROR sqoop.Sqoop: Got exception running Sqoop: java.lang.IllegalArgumentException: No column by the name rowguid found while importing data
      java.lang.IllegalArgumentException: No column by the name rowguid found while importing data

      This error happens when Sqoop is importing the next table after the one containing rowguid column.

      My database has several tables and tons of columns. When I execute the above command line, it goes normal until it throws me an error related to missing column rowguid. Of course, this mapping should be done just on the specific table where this column exists, not in all tables.

      Is there a way to define table-name + column-name in --map-column-hive 

      parameter? Or another way to step over this issue? Maybe importing all tables changing automatically the data types?

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            Unassigned Unassigned
            HenriqueAJNB Henrique Alves Junqueira Nogueira Branco
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              Created:
              Updated: