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https://issues.apache.org/jira/browse/SQOOP-1617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14199220#comment-14199220
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Abraham Elmahrek commented on SQOOP-1617:
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Thanks [~jarcec]!
> MySQL fetch-size behavior changed with SQOOP-1400
> -------------------------------------------------
>
> Key: SQOOP-1617
> URL: https://issues.apache.org/jira/browse/SQOOP-1617
> Project: Sqoop
> Issue Type: Bug
> Components: connectors/mysql
> Affects Versions: 1.4.6
> Environment: CDH 5.2
> sqoop 1.4.5 (seems to include SQOOP-1400)
> mysql connector version 5.1.33
> Reporter: Jürgen Thomann
> Assignee: Jarek Jarcec Cecho
> Priority: Minor
> Fix For: 1.4.6
>
> Attachments: SQOOP-1617.patch
>
>
> SQOOP-1400 changed the default behavior for the connector to load everything
> in memory. The only working way to get the old streaming back is to use
> --fetch-size -2147483648 (Integer.MIN_VALUE)
> It would be nice if that could be changed and/or documented that mysql does
> not support a fetch size and does only support row-by-row or loading
> everything in memory.
> The issue is discussed for example here:
> http://community.cloudera.com/t5/Data-Ingestion-Integration/Sqoop-GC-overhead-limit-exceeded-after-CDH5-2-update/td-p/20604
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