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https://issues.apache.org/jira/browse/SQOOP-477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13475907#comment-13475907
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Jarek Jarcec Cecho commented on SQOOP-477:
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Hi David,
thank you very much for description of your use case. I believe that one simple 
solution would be to move all Option building code to static context, which 
should not require significant amount of work to accomplish.

Jarcec
                
> Tools (e.g., ImportTool) using OptionBuilder are not thread safe
> ----------------------------------------------------------------
>
>                 Key: SQOOP-477
>                 URL: https://issues.apache.org/jira/browse/SQOOP-477
>             Project: Sqoop
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 1.4.0-incubating, 1.4.1-incubating, 1.4.2
>         Environment: Software
>            Reporter: Davide Grohmann
>
> Creating instance of *Tools (e.g., ImportTool, BaseSqoopTool, etc) 
> concurrently (multiple threads) is not thread safe. The problem is in the 
> command line parsing via OptionBuilder which is not thread safe.

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