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From Mike Matrigali <mikem_...@sbcglobal.net>
Subject Re: [jira] Updated: (DERBY-239) Need a online backup feature that does not block update operations when online backup is in progress.
Date Mon, 31 Oct 2005 23:43:59 GMT
committed this fix as svn 329934.

Suresh Thalamati (JIRA) wrote:
>      [ http://issues.apache.org/jira/browse/DERBY-239?page=all ]
> 
> Suresh Thalamati updated DERBY-239:
> -----------------------------------
> 
>     Attachment: onlinebackup_2.diff
> 
> Fix  to the problem found by Øystein  while reviewing the previous online backup patch(online_backup1.diff).
> Backup of a container code was doing a seek  incorrectly on the file container instead
of the backup file. 
> 
> Tests: All tests passed on jdk142  Windows XP. 
> 
> It would be great if some one can commit this patch. 
> 
> 
> Thanks
> -suresht
>   
> 
> 
>>Need a online backup feature  that does not block update operations   when online
backup is in progress.
>>--------------------------------------------------------------------------------------------------------
>>
>>         Key: DERBY-239
>>         URL: http://issues.apache.org/jira/browse/DERBY-239
>>     Project: Derby
>>        Type: New Feature
>>  Components: Store
>>    Versions: 10.1.1.0
>>    Reporter: Suresh Thalamati
>>    Assignee: Suresh Thalamati
>> Attachments: onlinebackup.html, onlinebackup_1.diff, onlinebackup_2.diff
>>
>>Currently Derby allows users to perfoms  online backups using SYSCS_UTIL.SYSCS_BACKUP_DATABASE()
procedure,  but while the backup is in progress, update operations are temporarily blocked,
but read operations can still proceed.
>>Blocking update operations can be real issue specifically in client server environments,
because user requests will be blocked for a long time if a 
>>backup is in the progress on the server.
> 
> 


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