On Tue, Feb 14, 2012 at 7:23 PM, Gabriel Roldan <[email protected]> wrote:
> Hi Andrea,
>>
>> Thank you for your answer.
>>
>> We have tried removing all the jar-files related to GWC, and this seems
>> to work. For the moment, this is ok, but we are not sure how we can find
>> good long term solution to this. At some point we need to be able to run GS
>> with GWC on our Weblogic-servers. Is the solution to use stand-alone GWC-s,
>> or will this give us the same result? Perhaps someone else has GS/GWC
>> running on Weblogic and can give us some input?
>>
> Yes, use standalong gwc as front end to your clustered geoservers. A
> single gwc instance can round robin requests to various wms's. Just add
> multiple elements to the wmsLayer wmsUrl property:
>
> <wmsUrl>
> <string>http://geoserver1/geoserver/wms</string>
> <string>http://geoserver2/geoserver/wms</string>
> </wmsUrl>
>
This works, but mind two downsides:
* you cannot cluster it if you need the metastore and the disk quota, if
you cluster it in order to get HA you'll have to disable them and use a
fallback configuration for it (not round robit)
* cache seeding will be slower as GWC has to ask for PNG meta-tiles to
GeoServer, and then decode them, slice them in tiles and save them on disk,
with the integrated version
the png encoding/decoding is dodged
We normally go for the former (two GWC in fallback) and if we have big
pre-seed jobs we use a separate GeoServer+integrated GWC dedicated to build
the tiles quickly (this also
avoids loading the machines that are supposed to serve the end user
requests).
Cheers
Andrea
--
-------------------------------------------------------
Ing. Andrea Aime
GeoSolutions S.A.S.
Tech lead
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 962313
mob: +39 339 8844549
http://www.geo-solutions.it
http://geo-solutions.blogspot.com/
http://www.youtube.com/user/GeoSolutionsIT
http://www.linkedin.com/in/andreaaime
http://twitter.com/geowolf
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