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https://issues.apache.org/jira/browse/DERBY-4075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12680193#action_12680193
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Myrna van Lunteren commented on DERBY-4075:
-------------------------------------------

With the derby.properties in place, the error did not occur.
That doesn't mean there isn't a problem, but I'll need to look much closer at 
the test to see what it's doing if the properties are *not* in place. If the 
test ends up doing a double boot of the database, this is *known* to be not 
supported and cause corruption.

So, I'll
- start the test with 10.4 without derby.properties and see if the problem 
occurs with that version - if so, then this is not a regression.
- verify the concistency of the database and backed up database of the run in 
which the error occurred with the consistency checker. 
- try to figure out what the test is doing when the properties it expects are 
not in place.

> ERROR XSDBB: Unknown page format at page Page(613,Container(0, 1024)) when 
> running MailJdbc (Embedded) system tests
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4075
>                 URL: https://issues.apache.org/jira/browse/DERBY-4075
>             Project: Derby
>          Issue Type: Bug
>    Affects Versions: 10.5.0.0
>         Environment: windows 2000 professional, ibm 1.6 (sr2), revision 10.5: 
> 745360
>            Reporter: Myrna van Lunteren
>            Priority: Blocker
>             Fix For: 10.5.0.0
>
>         Attachments: Activity.out, derbylog.zip, performance.out
>
>
> I started the org.apache.derbyTesting.system.mailJdbc Embedded test and after 
> about 1 day it ran into an apparently corrupted database.
> 2009-02-19 14:02:44.221 GMT Thread[Refresh Thread,5,main] (XID = 349909), 
> (SESSIONID = 1), (DATABASE = mailsdb), (DRDAID = null), Failed Statement is: 
> insert into 
> REFRESH.INBOX(from_name,to_name,date,Message,attach_id,size_problem) values 
> (?,?,?,?,?,?) with 6 parameters begin parameter #1: ABCE :end parameter begin 
> parameter #2: WXYY :end parameter begin parameter #3: 2009-02-19 06:02:43.705 
> :end parameter begin parameter #4: 
> CLOB(org.apache.derby.iapi.types.readertoutf8str...@41ba41ba) :end parameter 
> begin parameter #5: 0 :end parameter begin parameter #6: This column is used 
> only to by pass the space problem. If the problem still exists, then we are 
> going to have a serious issue 
> here.*****************************************************************************************************
>  :end parameter 
> ERROR XSDBB: Unknown page format at page Page(613,Container(0, 1024)), page 
> dump follows: Hex dump:
> The error up to that point appear to me no different from other errors that 
> this test is expected to produce (40001, 23505, 4XL01) except that the very 
> first error is a grant error.
> I think we can't have a release until this corruption is explained away or 
> fixed.

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