Hello,

This is making my logic a little fuzzy, but I'm wondering if this change would 
allow an update of the SOLR configs without an update of the dspace/config 
configs?  I don't know that it's a real-life concern, but it seemed worth 
asking about.  (Personally, I'd be just as happy if all configs updated with a 
plain 'ant update', but I don't make all those changes in the source code, and 
that may not be typical.)

B--

>>> On 8/8/2011 at 3:21 PM, in message
<831492308.5090.1312838477814.JavaMail.jira@atlas>, "Tim Donohue (DuraSpace
JIRA)" <[email protected]> wrote:
> By default, Solr Schema's & Configs don't upgrade properly & may cause 
> instability
> ----------------------------------------------------------------------------------
> 
>                  Key: DS-987
>                  URL: https://jira.duraspace.org/browse/DS-987 
>              Project: DSpace
>           Issue Type: Bug
>           Components: Solr
>     Affects Versions: 1.7.2, 1.7.1, 1.7.0
>          Environment: Any environment
>             Reporter: Tim Donohue
>             Priority: Major
>              Fix For: 1.8.0
> 
> 
> By default, if users run simply 'ant update' to upgrade a DSpace instance, 
> the Solr Configurations & Schemas will NOT upgrade properly.  (Note: However, 
> if you run 'ant -Doverwrite=true update', then Solr will upgrade properly)
> 
> The reason, is that DSpace's Solr directory updates it configurations 
> similar to the [dspace]/config/ directory.
> 
> So, if you simply run 'ant update', all your existing, older Solr Schemas & 
> Configurations will remain in place unchanged (and new configs/schemas will 
> be suffixed with ".new", e.g. schema.xml.new).  This could cause instability 
> in DSpace if users are accidentally using an old Solr schemas/configurations 
> with a new DSpace API.
> 
> I think we need to always overwrite existing Solr Schemas & Configurations.  
> If we want to keep around a copy of older Solr Schemas, they should be 
> suffixed with "-[date].old" (like when running 'ant -Doverwrite=true 
> update').  
>  As users are less likely to customize Solr Schemas/Configs (without knowing 
> what they are doing), I think it's better to default to overwriting these 
> files during an upgrade.  
> 
> As it stands, most users will not even realize there are Solr configurations 
> under [dspace]/solr/search/conf/ and [dspace]/solr/statistics/conf/ which may 
> not have upgraded properly.


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