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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4884) DatabasePropertyTestSetup cannot change static properties in encrypted databases
Date Mon, 08 Nov 2010 10:25:11 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Knut Anders Hatlen updated DERBY-4884:
--------------------------------------

    Attachment: derby-4884-2a.diff

Here's a second patch that makes BlobClob4BlobTest and DeadlockModeTest use the reduced timeouts
when running against encrypted databases. The patch changes the order of the decorators so
that the DatabasePropertyTestSetup executes inside the encryption decorator, and this ensures
that it works on the encrypted database instead of on the default database.

DeadlockModeTest had one more problem that needed to be fixed. The encrypted variant always
worked on the default (non-encrypted) database, not only when setting the timeouts, but also
when doing database operations in the test case. The reason for this was that all the database
connections were opened in helper threads, and the decorators only change the test configuration
for the current thread (in a thread local field in TestConfiguration), so the connections
would always be opened against the default database. I therefore made the test open all the
connections in the main JUnit thread and pass the Connection objects as arguments to the helper
threads when creating them.

With this patch, the time to run BlobClob4BlobTest was reduced from 5 min 25 sec to 1 min
40 sec in my environment. (No change in run time for DeadlockModeTest since it doesn't usually
see lock timeouts.)

> DatabasePropertyTestSetup cannot change static properties in encrypted databases
> --------------------------------------------------------------------------------
>
>                 Key: DERBY-4884
>                 URL: https://issues.apache.org/jira/browse/DERBY-4884
>             Project: Derby
>          Issue Type: Bug
>          Components: Test
>    Affects Versions: 10.7.1.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>         Attachments: derby-4884-1a.diff, derby-4884-2a.diff
>
>
> DatabasePropertyTestSetup needs to reboot the database in order to set static properties.
In tests with encrypted databases, the database cannot be rebooted because the boot password
is only known inside the setUp() method of the decorator created by Decorator.encryptedDatabase().
> One of the problems that results from this, is that BlobClob4Blob test cannot reduce
the lock timeout for the encrypted variant of the test. Since there are four test cases that
wait for a lock timeout, the test takes almost four minutes longer than it would have if the
lock timeout had been reduced.

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