[rules-users] drools - packaging creates a full snapshot...why?

[Jervis Liu]

On 2011/6/30 9:06, jcrowe wrote:
> I have been using drools for almost a year now and build several packages a
> day.  Things are starting to slow down a bit and I've started to wonder if
> it is because of all the workspace copies and the jcr overhead of them.  I
> have implemented a deletion of old workspace copies but this made me wonder
> why drools is doing (in RulesRepository):
>              this.session.getWorkspace().copy( source, newName );
>
The package snapshot is created only when you explicitly request Guvnor 
to do so (through the "Create snapshot for deployment" button on package 
editor). And it does not copy the whole work space, it only copies the 
package to the snapshot area. You can always remove the package 
snapshots if you do not needs them anymore.
> its not like i need a copy, once the package is built, it doesn't seem to
> 'rebuild it' from this snapshot.  I have no way of "recovering to" this
> snapshot.
Package snapshot is a readonly copy (a snapshot) of a package at a 
certain time, it serves as a simple version control mechanism for 
packages. Start from Drools 5.3, package snapshot is not needed anymore 
as we provide a much more powerful versioning support for packages based 
on JCR versioning. Reverting a package will be possible, though this has 
not been implemented yet (check 
https://issues.jboss.org/browse/GUVNOR-1519).


Cheers,
Jervis
> Anyone can help me with the reason behind the copy (perhaps why I shouldn't
> just delete this copy? I'm sure there are side-effects of this I'm not
> thinking of, etc., etc.,)
>
> Any feedback is appreciated.
>
> --
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