[jira] Closed: (DERBY-4093) Improve handling of the database temporary directory

["Kristian Waagan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-4093?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kristian Waagan closed DERBY-4093.
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> Improve handling of the database temporary directory
> ----------------------------------------------------
>
>                 Key: DERBY-4093
>                 URL: https://issues.apache.org/jira/browse/DERBY-4093
>             Project: Derby
>          Issue Type: Sub-task
>          Components: Store
>    Affects Versions: 10.5.1.1
>            Reporter: Kristian Waagan
>            Assignee: Kristian Waagan
>             Fix For: 10.5.1.1
>
>         Attachments: derby-4093-1a-tmp_dir_handling.diff, derby-4093-1b-tmp_dir_handling.diff
>
>
> The problem reported by Knut Anders Hatlen in DERBY-646 is caused by improper handling of the temporary directory created for the database.
> A NullPointerException was thrown on database shutdown.
> After studying the code, I believe it is wise to follow the approach taken by the base storage factory;
>  o locate the temporary directory within the database directory
>     (i.e. for database 'mydb' this will by 'mydb/tmp')
>  o don't create the temporary directory before Derby supplies a unique name to the storage factory

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