Hallo Martin, about your clustering problems. 1) I hope you assigned a different log file for each of your geoserver instances
2) Disable GWC as described by Martin to avoid problems 3) About the reload. A quick look into the source code shows me a potential for race conditions. The reload method protects itself, no concurrent reloads possible. In a cluster, things get more complicated. During a reload, no service requests can be processed, you have to queue the requests or tell your load balancer to stop dispatching requests to the reloading instance. For the moment, I see no possibility here except manual intervention. Personally, I would solve the problem not with a reload, I would restart one instance after the other. (This can be done using scripts in an automatic way, ssh is your friend). Therefore, your load balancer must have a fail over feature. 4) I hope you are aware that you can cluster geoserver instances only for not authenticated access. If you want to cluster with user authentication, you need an authentication cluster concept, a single sign on for the cluster. This requires a group communication system like jgroups and some cryptographic techniques. At the moment I am investigating on this topic. Hope this helps Quoting Andrea Aime <andrea.a...@geo-solutions.it>: > On Fri, Mar 25, 2011 at 3:34 PM, Martin Zeller <tor...@torres.at> wrote: >> Andrea, what can we expect of the next versions regarding >> clusters/shared data? >> >> I mean, I tried a shared datadir on a cluster with RC2 - it does not >> work, because getGeoServer().reload() throws an error >> (see my other post >> http://osgeo-org.1803224.n2.nabble.com/Shared-configurations-on-a-cluster-with-GeoServer-2-1-RC2-tt6203453.html) >> I tried it now with RC3 - it doesn't work as well (see below) >> I am a little bit puzzled :-( >> What are the plans? Or would you recommend to use on older stable >> version? > > The only plan that I know of is lack of plans. There is no sort of > testing for the use case of > "run multiple GS against the same data dir". > > We normally discover what does not work in that respect when we try to > run multiple > GS against the same data dir (which we do, but not every week) and fix it, > then things break again, and so on. > > If anybody wants to provide the dedicated time to follow up this use > case continuously > we'd be more than happy with the help > > 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: +39 333 8128928 > > 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 > > ------------------------------------------------------- > > ------------------------------------------------------------------------------ > Enable your software for Intel(R) Active Management Technology to meet the > growing manageability and security demands of your customers. Businesses > are taking advantage of Intel(R) vPro (TM) technology - will your software > be a part of the solution? Download the Intel(R) Manageability Checker > today! http://p.sf.net/sfu/intel-dev2devmar > _______________________________________________ > Geoserver-users mailing list > Geoserver-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geoserver-users > ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. ------------------------------------------------------------------------------ Enable your software for Intel(R) Active Management Technology to meet the growing manageability and security demands of your customers. Businesses are taking advantage of Intel(R) vPro (TM) technology - will your software be a part of the solution? Download the Intel(R) Manageability Checker today! http://p.sf.net/sfu/intel-dev2devmar _______________________________________________ Geoserver-users mailing list Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
