*You can't have two GWC instances writing to the same directory*
Interesting. How do people go about configuring a cluster that includes GWC
capabilities?
Sorry if I'm hijacking the original thread but I am interested in the db
config explained before, only it would need to be compatible with GWC as
well.
On Wed, Dec 15, 2010 at 10:48 AM, Arne Kepp <[email protected]> wrote:
> You can't have two GWC instances writing to the same directory. (The same
> holds true for WFS-T against shapefiles etc.)
>
> You'll have to delete the gwc and geowebcache jars from at least one
> instance.
>
> -Arne
>
>
>
> On 12/15/10 4:36 PM, Bart van den Eijnden wrote:
>
> Hi Justin,
>
> here is some extra info provided by my colleague. TIA.
>
> What I did (on a Windows XP machine!):
>
> 1. Downloaded geoserver-2.1-beta2-war.zip and geoserver-2.1-beta2-bin.zip
> from sourceforge
> 2. Downloaded dbconfig module geoserver-2.1-SNAPSHOT-dbconfig-plugin.zip
> from
> *http://gridlock.opengeo.org/geoserver/trunk/community-latest/*<http://gridlock.opengeo.org/geoserver/trunk/community-latest/>.
> I have the one of
> 12 december
> 3. Extracted the
> 4. Downloaded postgresql-9.0.1-1-windows-binaries.zip
> 5. Extracted them and created via initdb/createdb a database called napj
> 6. Started the DB
> 7. Extracted 2 copies of JBoss 4.0.5 GA and updated the ports, so that they
> could co-exist
> (See *
> http://manoharviswanathan.com/blog/tech/running-multiple-jboss-instances-on-the-same-machine/
> *<http://manoharviswanathan.com/blog/tech/running-multiple-jboss-instances-on-the-same-machine/>
> )
> 8. Extracted the war from the geoserver-2.1-beta2-war.zip
> 9. Exploded the war and put the content of
> geoserver-2.1-SNAPSHOT-dbconfig-plugin.zip in the
> WEB-INF\lib
> 10. Zipped everything back to a war file
> 11. Placed a copy of the war file into both the JBoss instances (default
> server, deploy folder)
> 12. Copied the content of data-dir (found in geoserver-2.1-beta2-bin.zip)
> to a central location
> 13. Placed a file called geoserver.db.properties into this location with
> the following content:
> ---
> #Mon Dec 13 16:47:32 CET 2010
> url=jdbc\:postgresql\://localhost/napj
> password=<snip>
> driver=org.postgresql.Driver
> username=napj
> ---
> 14. Placed a file called hibernate.properties in the same location with the
> following content
> ---
> #Hibernate properties for the geoserver catalog and configuration. You
> probably
> #don't want to change these values unless instructed by a developer.
> #Wed Dec 15 15:55:01 CET 2010
> hibernate.use_sql_comments=true
> hibernate.cache.provider_class=org.hibernate.cache.EhCacheProvider
> hibernate.cache.use_query_cache=true
> hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
> hibernate.cache.use_second_level_cache=true
> hibernate.cache.provider_configuration_file_resource_path=/ehcache.xml
> hibernate.format_sql=true
> hibernate.generate_statistics=true
> hibernate.session_factory_name=SessionFactory
> hibernate.hbm2ddl.auto=update
> hibernate.bytecode.use_reflection_optimizer=true
> hibernate.show_sql=false
> ---
> Only thing I changed in this file is the hibernate.dialect. Both files were
> automatically created when
> Geoserver started
> 15. In both JBoss instances I updated run.bat like this:
> set JAVA_OPTS=%JAVA_OPTS% -DGEOSERVER_DATA_DIR=/<path to datadir>
> 16. Started first instance of jboss (just type run in the bin directory)
> This doesn't cause any problems
> 17. Now I start the second one.
> This one doesn't come up. I attached the server log of this one. Content of
> this file is position where
> it becomes interesting.
>
> Could it be that for some reason the database connection was reset in one
> of the servers?
>
>
>
>
> --
> Looking for flexible support on OpenLayers or GeoExt? Please check out
> http://www.osgis.nl/support.html
>
> Bart van den Eijnden
> OSGIS
> [email protected]
>
> On Dec 15, 2010, at 3:49 PM, Justin Deoliveira wrote:
>
> Hi Bart,
>
> To answer the question yes, dbconfig is meant to be used in this way and
> i myself have tested it with multiple servers running from a single
> configuration. But as I stated before the module is still pretty immature.
>
> That said, this error message does not seem to be a complete stack trace.
> Is there more? I think the actual root exception is not being included here.
>
> Thanks.
>
> -Justin
>
> On Wed, Dec 15, 2010 at 3:01 AM, Bart van den Eijnden <[email protected]>wrote:
>
>> Hi Justin, list,
>>
>> we have some trouble with setting this up, I am posting an e-mail from a
>> colleague below since he is not on the list. TIA for any help.
>>
>> Hello,
>>
>> Currently I'm trying to set up Geoserver in 2 JBoss environments reading
>> from the same
>> data directory. I have the following setup:
>>
>> Using PostgreSQL 9.0.1 as database, JBoss 4.0.5 GA (2x) each running
>> Geoserver 2.1 beta 2
>> with the dbconfig plugin (just dumped the jar files into the WEB-INF/lib
>> directory of the
>> war file). Using 1 single instance of JBoss everything runs smoothly.
>>
>> Now the idea is to run a second instance of Geoserver pointing to the
>> same datastore. I'm trying
>> to see if it's possible that when the configuration of 1 Geoserver
>> instance is updated
>> (via e.g. GeoCat Bridge) the changes are reflected in the other instances
>> as well.
>>
>> Unfortunately I get all kinds of error messages starting with the
>> message below:
>> ----
>> 15:21:55,837 INFO [STDOUT] 14 Dec 15:21:55 ERROR [context.ContextLoader]
>> - Cont
>> ext initialization failed
>> org.springframework.beans.factory.BeanCreationException: Error creating
>> bean wit
>> h name 'gwcFacade' defined in URL [jar:file:/H:/runnableapps/
>> jboss-4.0.5.GA/serv
>>
>> er/default/./tmp/deploy/tmp1640002882111840325geoserver-exp.war/WEB-INF/lib/gwc-
>> 2.1-beta2.jar!/geowebcache-geoserver-context.xml]: Cannot resolve
>> reference to b
>> ean 'gwcTLDispatcher' while setting constructor argument; nested exception
>> is or
>> g.springframework.beans.factory.BeanCreationException: Error creating bean
>> with
>> name 'gwcTLDispatcher' defined in URL [jar:file:/H:/runnableapps/
>> jboss-4.0.5.GA/
>>
>> server/default/./tmp/deploy/tmp1640002882111840325geoserver-exp.war/WEB-INF/lib/
>> gwc-2.1-beta2.jar!/geowebcache-geoserver-context.xml]: Instantiation of
>> bean fai
>> led; nested exception is
>> org.springframework.beans.BeanInstantiationException: C
>> ould not instantiate bean class
>> [org.geowebcache.layer.TileLayerDispatcher]: Con
>> structor threw exception; nested exception is java.lang.RuntimeException:
>> org.hi
>> bernate.type.SerializationException: could not deserialize
>> ----
>>
>> Now my questions are: is the dbconfig module meant to be used this way?
>> I can't find
>> any documentation on this. If it is meant this way, do I need to update
>> specific
>> settings anywhere to support this?
>>
>> Thanks in advance for your answer!
>>
>> Best regards,
>> Bart
>>
>> --
>> Looking for flexible support on OpenLayers or GeoExt? Please check out
>> http://www.osgis.nl/support.html
>>
>> Bart van den Eijnden
>> OSGIS
>> [email protected]
>>
>> On Dec 9, 2010, at 4:24 PM, Justin Deoliveira wrote:
>>
>> Hi Rudi,
>>
>> Actually the module that contains the latest work is called dbconfig
>> [1].
>>
>> If you are brave and would like to try it out you can grab the latest
>> build from the community nightly builds. [2]. But be warned that it is still
>> not quite stable and is a work in progress. That said it does work and any
>> feedback you could provide as an actual user would be great.
>>
>> -Justin
>>
>> [1] http://svn.codehaus.org/geoserver/trunk/src/community/dbconfig/
>> [2] http://gridlock.opengeo.org/geoserver/trunk/community-latest/
>>
>> On Thu, Dec 9, 2010 at 7:22 AM, Hochmeister Rudolf <
>> [email protected]> wrote:
>>
>>> Hi,
>>>
>>> Your 'Geoserver-2.1-beta2 now available' announcement on [1] drew my
>>> attention to database-backed catalog.
>>> I looked into the community[com] module[mod] directory and found
>>> 'hibernate'-mod.
>>> Is this the com-mod that the passage 'Core improvements to support
>>> database-backed catalog' refers to?
>>>
>>> [1]
>>> http://blog.geoserver.org/2010/12/06/geoserver-2-1-beta2-now-available/
>>>
>>> cheers,
>>>
>>> Rudi Hochmeister
>>> Magistrat der Stadt Wien
>>> MA 14 - ADV - Referat EG3
>>> A 1082 Wien, Rathausstraße 1
>>> Email: [email protected]
>>> Telefon: (+43 1) 4000 91119
>>> Fax: (+43 1) 4000 7141
>>>
>>>
>>>
>>>
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>>
>>
>>
>> --
>> Justin Deoliveira
>> OpenGeo - http://opengeo.org
>> Enterprise support for open source geospatial.
>>
>>
>> ------------------------------------------------------------------------------
>>
>>
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>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/geoserver-devel
>>
>>
>>
>
>
> --
> Justin Deoliveira
> OpenGeo - http://opengeo.org
> Enterprise support for open source geospatial.
>
>
>
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--
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GIS Consultant
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