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From Felix Meschberger <fmesc...@adobe.com>
Subject Re: Online backup
Date Mon, 12 Mar 2012 13:03:42 GMT
Hi,

Am 12.03.2012 um 14:01 schrieb Jukka Zitting:

> Hi,
> 
> On Mon, Mar 12, 2012 at 1:46 PM, Felix Meschberger <fmeschbe@adobe.com> wrote:
>> But: However the repository implements sharding etc. The user of the
>> JCR API does not have to care about this implementation detail...
> 
> Right, but a backup tool is not a normal JCR client.

Ok, that makes a difference of course, thanks.

Regards
Felix

> 
>> As such a backup solution, should well be possible on-top of the JCR API
>> regardless of how the internal implementation distributes data etc., right ?
> 
> Why? The JCR API does not cover all the functionality needed to fully
> recover a repository from a backup (and offers no bulk-read or
> incremental update feature needed for fast backups), so a backup
> client in any case needs to use a lower level API.
> 
> Whether and how such an API exposes features like sharding is an issue
> we still need to sort out. It's good to remember that use cases like
> backup can be significantly affected by the design we select.
> 
> BR,
> 
> Jukka Zitting


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