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From Mike Matrigali <mikem_...@sbcglobal.net>
Subject Re: [jira] Updated: (DERBY-414) Client XA has a problem with the TRANSACTION_READ_UNCOMMITTED isolation level
Date Thu, 30 Jun 2005 16:05:03 GMT
Is this problem specific to network client?

Kathey Marsden (JIRA) wrote:

>      [ http://issues.apache.org/jira/browse/DERBY-414?page=all ]
> 
> Kathey Marsden updated DERBY-414:
> ---------------------------------
> 
>     Attachment: deby414Repro.zip
> 
> run repro as
> java TestDerbyNSXA
> 
> 
> 
>>Client XA has a problem with the TRANSACTION_READ_UNCOMMITTED isolation level
>>-----------------------------------------------------------------------------
>>
>>         Key: DERBY-414
>>         URL: http://issues.apache.org/jira/browse/DERBY-414
>>     Project: Derby
>>        Type: Bug
>>  Components: Network Client
>>    Versions: 10.1.1.0, 10.2.0.0
>>    Reporter: Kathey Marsden
>> Attachments: deby414Repro.zip
>>
>>When using v10.1.1.0 of the Apache Derby Network Client JDBC Driver and configuring
>>the TRANSACTION_READ_UNCOMMITTED isolation level, it is unable to read changes from
another transaction which haven't been committed yet. 
>>$ java TestDerbyNSXA
>>Connection number: 2.
>>Database product: Apache Derby
>>Database version: 10.2.0.0 alpha
>>Driver name:      Apache Derby Network Client JDBC Driver
>>Driver version:   10.2.0.0 alpha
>>Thread 1: transaction started (with read committed isolation)
>>Thread 1: row updated first time.
>>Connection number: 3.
>>Thread 2: transaction started (with read uncommitted isolation)
>>Query complete on thread 2. About to do ResultSet.next()...
>>Thread 1: row updated second time.
>>ResultSet.next() took 19067 milliseconds.
>>Test fails. ResultSet next under read uncommitted isolation appears to have been blocked
and unable to perform a dirty read.
>>Thread 1: transaction committed.
>>Thread 2: transaction committed.
>>$
> 
> 

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