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https://issues.apache.org/jira/browse/SQOOP-2441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14705601#comment-14705601
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Jarek Jarcec Cecho commented on SQOOP-2441:
-------------------------------------------

Another example of not relevant error:

{code}
[ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-antrun-plugin:1.6:run (save-version) on project 
sqoop-common: An Ant BuildException has occured: java.lang.OutOfMemoryError: 
unable to create new native thread
{code}

I'll rerun the hook. This is the second time I see the exception, I'll 
investigate it more if I'll detect it again.

> Sqoop2: Generic JDBC: Drop support for specifying custom query when exporting 
> data
> ----------------------------------------------------------------------------------
>
>                 Key: SQOOP-2441
>                 URL: https://issues.apache.org/jira/browse/SQOOP-2441
>             Project: Sqoop
>          Issue Type: Sub-task
>            Reporter: Jarek Jarcec Cecho
>            Assignee: Jarek Jarcec Cecho
>             Fix For: 1.99.7
>
>         Attachments: SQOOP-2441.patch, SQOOP-2441.patch
>
>
> In the early days of the development we've added new feature to the JDBC 
> connector that enabled user to specify custom query to insert the data - 
> similarly as user can specify custom query to select data. I see several 
> problems with the feature:
> * It's actually not working at all right now because we're not able to 
> [generate schema from the custom 
> query|https://github.com/apache/sqoop/blob/sqoop2/connector/connector-generic-jdbc/src/main/java/org/apache/sqoop/connector/jdbc/GenericJdbcToInitializer.java#L66].
> * It doesn't allow us to do any batching as we're doing in Sqoop 1 when we're 
> putting several rows into the same query which will hurt performance.
> * I did not see any real request for this feature from users
> Hence I would like to propose dropping this unfinished/non-working feature 
> all together. Any thoughts?



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