Re: What are supported upgrade paths to Silva-1.5.6

Reinhard Hess wrote:
> Dear Developers,
> 
> 
> I suppose the answer should come best from the product developers 
> (Infrae), but it might be of interest to others as well, so I post the 
> question here.
> 
> Having a couple of very large sites, mass hosting with hundreds of 
> virtual sites on Silva we are in the process of upgrading to Silva-1.5.6 
>  right now. Prerequisite for the upgrade is also a change to Zope-2.8.8 
> in the application server version, combined with a change in the version 
> of ZODB as well.
> 
> Now, what is the supported upgrade path?
> Is it Zope Export/Import only?
> Or can we take the ZODB from a Silva-1.1.5 and copy it to a fresh 
> install of Zope-2.8.8 and run the upgrade scripts? Does it matter, that 
> the old Data.fs belongs to a ZODB of lower version than the ZODB 
> software in Zope-2.8.8 in that case?
> Are there other possible ways?
> What is supported officially?

This needs to be investigated (unless someone has already done it 
without our knowledge.) Right now Silva-1.5.x is officially targeting 
Zope 2.8.6, and I'm not sure how much work would be involved in porting 
it to 2.8.8. Hopefully not a lot though.

Normally copying the data.fs and running the upgrade scripts should be 
enough, and a new ZODB version should not be problematic in following 
the usual upgrade pattern. Should not, as in: I don't expect it to be 
any extra work, but it is untested as yet, since we've only run against 
2.8.6.

eric