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https://issues.apache.org/jira/browse/SQOOP-1602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14259561#comment-14259561
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Qian Xu commented on SQOOP-1602:
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If number of loaders is not specified, it will create the same number of loader
instances as extractor instances. So far it has been proven by my experiments.
> Sqoop2: Fix the current balancing across Loaders internal to Sqoop
> --------------------------------------------------------------------
>
> Key: SQOOP-1602
> URL: https://issues.apache.org/jira/browse/SQOOP-1602
> Project: Sqoop
> Issue Type: Sub-task
> Reporter: Veena Basavaraj
> Assignee: Qian Xu
> Fix For: 1.99.5
>
>
> The balancing of the record to the loaders in done internally in SQOOP today
> While writing the Kite Connector Qian noticed that this is not done fairly.
> While I am testing kite connector, I allocated 2 loaders. I thought data will
> be divided by 50% and 50% to both loaders. But actually the second loader
> does nothing, because its DataReader does not have any data to provide. Is it
> by design?
> >> About loaders do not have data in a balanced way.
> My scenario is 4 "jdbc_mysql" extractors to extract 100k row data (10MB).
> There are 2 Kite loaders to read data.
> This must be a bug that needs to be fixed in SQOOP ( [~abec] confirmed it.
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