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https://issues.apache.org/jira/browse/SQOOP-1278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13891199#comment-13891199
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ASF subversion and git services commented on SQOOP-1278:
--------------------------------------------------------

Commit d3758915bb8b265ec157cd4bc21a7e17d922458e in branch refs/heads/trunk from 
[~jarcec]
[ https://git-wip-us.apache.org/repos/asf?p=sqoop.git;h=d375891 ]

SQOOP-1278: Allow use of uncommitted isolation for databases that support it as 
an import option

(Venkat Ranganathan via Jarek Jarcec Cecho)


> Allow use of uncommitted isolation for databases that support it as an import 
> option
> ------------------------------------------------------------------------------------
>
>                 Key: SQOOP-1278
>                 URL: https://issues.apache.org/jira/browse/SQOOP-1278
>             Project: Sqoop
>          Issue Type: Bug
>    Affects Versions: 1.4.3, 1.4.4
>         Environment: All DBs that support uncommitted read transaction 
> isolation
>            Reporter: Venkat Ranganathan
>            Assignee: Venkat Ranganathan
>         Attachments: SQOOP-1278-3.diff, SQOOP-1278.diff
>
>
> Some customers might have ETL workflows  that depend on data to be imported 
> while the table is otherwise available for the regular data processing.    
> The current read committed isolation can cause failure because of locking 
> semantics used in the database systems used also.
> So, this is to provide a relaxation of the connection isolation used by the 
> mappers to be read uncommitted using a sqoop option.   Note that read 
> uncommitted is not a valid option for Oracle so it is not supported with the 
> database and will be ignored for Oracle



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