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https://issues.apache.org/jira/browse/SQOOP-2995?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Szabolcs Vasas closed SQOOP-2995.
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> backward incompatibility introduced by Custom Tool options
> ----------------------------------------------------------
>
> Key: SQOOP-2995
> URL: https://issues.apache.org/jira/browse/SQOOP-2995
> Project: Sqoop
> Issue Type: Bug
> Affects Versions: 1.4.7
> Reporter: David Karoly
> Assignee: Szabolcs Vasas
> Attachments: SQOOP-2995-2.patch, SQOOP-2995.patch
>
>
> SQOOP-2333 adds support for custom options for User Defined Plugins using
> property customtool.options.jsonmap
> When this is used in combination with sqoop metastore we get backward
> incompatible behavior:
> * if a job is created in a previous sqoop version not containing SQOOP-2333,
> the job definition won't contain customtool.options.jsonmap
> * since SQOOP-2333 introduced this is a mandatory property and we get an
> exception if customtool.options.jsonmap is not present
> * therefore 'job -show' or 'job -exec' will fail for any jobs created in
> previous versions not containing SQOOP-2333
> Sqoop should initialize its internal map object (which is restored from the
> 'customtool.options.jsonmap' metastore property) to an empty map instead of
> null even if the 'customtool.options.jsonmap' property is not present in the
> metastore database.
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