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https://issues.apache.org/jira/browse/MAPREDUCE-1443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron Kimball updated MAPREDUCE-1443:
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Attachment: MAPREDUCE-1443.patch
This patch refactors some internals of DBInputFormat so that both DBInputFormat
and DataDrivenDBInputFormat can close connections opened in the {{getSplits()}}
call.
This patch does not include explicit tests. I used Oracle and MySQL
administration tools to verify that connections are closed in a timely fashion
and that open connections do not accrue over time, as they previously did.
> DBInputFormat can leak connections
> ----------------------------------
>
> Key: MAPREDUCE-1443
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1443
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: client
> Reporter: Aaron Kimball
> Assignee: Aaron Kimball
> Attachments: MAPREDUCE-1443.patch
>
>
> The DBInputFormat creates a Connection to use when enumerating splits, but
> never closes it. This can leak connections to the database which are not
> cleaned up for a long time.
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