Ah, Thanks for this prompt clear answer!

Richard
On 06/06/2019 11.17, Andrea Aime wrote:
> Hi Richard,
> generally speaking, it's a bad idea to use a single Tomcat with multiple
> GeoServer instances.
> If you want to split, have a 1-1 association, one Tomcat, one GeoServer
> 
> Cheers
> Andrea
> 
> 
> On Thu, Jun 6, 2019 at 11:03 AM Richard Duivenvoorde
> <rdmaili...@duif.net <mailto:rdmaili...@duif.net>> wrote:
> 
>     Hi All,
> 
>     I'm experimenting here with a setup in which I run 1 Tomcat (on
>     Windows... ) with several geoserver instances (so geoserver1, geoserver2
>     in webapps dir).
> 
>     The idea was to be able to be able to speedup the restart of an
>     geoserver instance because they would contain less stores/layers
>     individually. Starting up takes some time now.
>     Another idea was to maybe split them up by store type (reason behind it:
>     we have had an production server failure because of a Oracle db server
>     ip move and an old store was still pointing to the non excisting ip).
> 
>     BUT: having ONE instance using gdal/ecw running fine, but as soon as I
>     run 2 instances (different GEOSERVER_DATA_DIR's in web.xml defined) the
>     second one does NOT show the possibility anymore to CREATE an ecw store,
>     AND in the first one, existing layers/stores are not working anymore....
> 
>     Then removing the geoserver2 instance from the webapps, makes ecw in
>     geoserver1 working again....
> 
>     I'm not so much into the jni/native/dll loading, but is it possible that
>     the gdal-extension in one instance is creating havoc in another?
>     Note that java-only stores (like Oracle-jdbc) work fine with several
>     instances.
> 
>     Probably we go back to the 1 instance scenario for now, but if this is
>     trivial to work around, just let me know.
> 
>     Regards,
> 
>     Richard Duivenvoorde
> 
> 
> 
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>     
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> Aime @geowolf Technical Lead GeoSolutions S.A.S. Via di Montramito 3/A
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Please make sure you read the following two resources before posting to this 
list:
- Earning your support instead of buying it, but Ian Turton: 
http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines: 
http://geoserver.org/comm/userlist-guidelines.html

If you want to request a feature or an improvement, also see this: 
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer


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