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From "Jason McLaurin (JIRA)" <j...@apache.org>
Subject [jira] Closed: (DERBY-3875) Derby cannot replace a database after encountering corruption
Date Tue, 14 Oct 2008 04:07:44 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3875?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason McLaurin closed DERBY-3875.
---------------------------------

    Derby Categories: [Crash, High Value Fix]  (was: [High Value Fix, Crash])

Verified the fix against the nightly trunk build.  Thanks Kristian and Myrna for your work
improving and committing the code!


> Derby cannot replace a database after encountering corruption
> -------------------------------------------------------------
>
>                 Key: DERBY-3875
>                 URL: https://issues.apache.org/jira/browse/DERBY-3875
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.4.2.0
>         Environment: ------------------ Java Information ------------------
> Java Version:    1.6.0_06
> Java Vendor:     Sun Microsystems Inc.
> Java home:       C:\Program Files\Java\jre1.6.0_06
> Java classpath:  C:\Working\Derby-fileclose-fix\bin;C:\Working\Derby-fileclose-fix\lib\derby.jar
> OS name:         Windows XP
> OS architecture: x86
> OS version:      5.1
> Java user name:  Administrator
> Java user home:  C:\Documents and Settings\Administrator
> Java user dir:   C:\Working\Derby-fileclose-fix
> java.specification.name: Java Platform API Specification
> java.specification.version: 1.6
> --------- Derby Information --------
> JRE - JDBC: Java SE 6 - JDBC 4.0
> [C:\Working\Derby-fileclose-fix\lib\derby.jar] 10.4.2.0 - (689064)
> ------------------------------------------------------
> ----------------- Locale Information -----------------
> ------------------------------------------------------
>            Reporter: Jason McLaurin
>             Fix For: 10.4.2.1, 10.5.0.0
>
>         Attachments: derby-3875-BackupRestoreTest.diff, derby-3875-BackupRestoreTest.stat,
DERBY-3875_2.diff, DERBY-3875_tst1.diff, FileCloseBugDemo.java, FileCloseBugDemo.java, RAFContainerPatch.txt
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> When Derby encounters a corrupt data file, it does not close the data file before throwing
an exception to the caller.  If the user tries to replace the database with a backup in response
to the corruption, Derby will first attempt to delete the contents of the corrupt database.
 But since the corrupt file was never closed, it cannot be deleted, and Derby fails to start.
> The attached java code should reproduce the problem, and the attached patch should fix
it.

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