Dear Gavin, thanks for sharing this info, I will put together some additional thoughts on where to squeeze (at least in our experienc) additional perf.
Regards, Simone Giannecchini == GeoServer Professional Services from the experts! Visit http://goo.gl/NWWaa2 for more information. == Ing. Simone Giannecchini @simogeo Founder/Director GeoSolutions S.A.S. Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 333 8128928 http://www.geo-solutions.it http://twitter.com/geosolutions_it ------------------------------------------------------- AVVERTENZE AI SENSI DEL D.Lgs. 196/2003 Le informazioni contenute in questo messaggio di posta elettronica e/o nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il loro utilizzo è consentito esclusivamente al destinatario del messaggio, per le finalità indicate nel messaggio stesso. Qualora riceviate questo messaggio senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia via e-mail e di procedere alla distruzione del messaggio stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso, divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità diverse, costituisce comportamento contrario ai principi dettati dal D.Lgs. 196/2003. The information in this message and/or attachments, is intended solely for the attention and use of the named addressee(s) and may be confidential or proprietary in nature or covered by the provisions of privacy act (Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection Code).Any use not in accord with its purpose, any disclosure, reproduction, copying, distribution, or either dissemination, either whole or partial, is strictly forbidden except previous formal approval of the named addressee(s). If you are not the intended recipient, please contact immediately the sender by telephone, fax or e-mail and delete the information in this message that has been received in error. The sender does not give any warranty or accept liability as the content, accuracy or completeness of sent messages and accepts no responsibility for changes made after they were sent or for other risks which arise as a result of e-mail transmission, viruses, etc. On Fri, Mar 27, 2015 at 11:47 PM, Gavin Montgomery <[email protected]> wrote: > All, > > Thank you for all your very helpful responses. > > A quick update, apologies that it has come a little late. > > Firstly I disabled all the caching on each of the layers we had made > available to GWC inside Geoserver. > I then removed ALL gwc jar files from the GeoServer lib directory. I believe > last time I may have missed a few. > Geoserver started happily with no errors. > > GWCdeployed, I just needed to steal the majority of the text from the layer > config files in the gwc-layers directory. > > Afterall, we currently have two servers, one running 4 instances of > geoserer, the other; solely running GWC. Going forward, we are allocating > another 3 servers for geoserver and one additional GWC. > > To answer the question of requirement, this service is for a national > mapping application serving thousands of clients concurrently, we very > shortly realised that the original design was not going to cut it, > especially as the GWC was consuming a lot of memory as we have complete > national coverage of high resolution base-mapping data. This clashed with > the memory allocation for GeoServer and did result in memory issues. > > Overall, a success at this moment in time, I may post back later in the > programme with some performance stats to see if we really have gained a > valuable improvement. > > Thank you for all our support > > > >> From: [email protected] >> Date: Fri, 27 Mar 2015 18:58:14 +0100 >> Subject: Re: [Geoserver-users] GeoServer without GWC? >> To: [email protected] >> CC: [email protected]; [email protected] > >> >> Adding to Andrea's. >> >> We used to deplou GWC separately in the past for a number of reasons: >> >> - diskquota did not work in a cluster hence when we had multiple >> geoserver in parallel using embedded GWC was not an option >> - gwc integration in geoserver was still a bit unstable >> - more control over the configuration >> - easier to scale them independently >> >> As of today we are pushing towards keeping them integrated which makes >> deployments simpler, however there is still one thing on the wishlist >> that would make the integrated GWC my #1 option without doubts and >> that would be the ability to distinguish WMS requests that are routed >> transparently to GWC from those that are not in the control flow >> plugin. >> It is infact impossible today to create a QOS strategy that >> differentiate this use case when GS and GWC are integrate and that can >> be painful when you are serving thousands of users with the same >> cluster. Of course, you can dedicate different groups of isntances to >> different roles but that's not different than using GWC standlone. >> >> Regards, >> Simone Giannecchini >> == >> GeoServer Professional Services from the experts! Visit >> http://goo.gl/NWWaa2 for more information. >> == >> Ing. Simone Giannecchini >> @simogeo >> Founder/Director >> >> GeoSolutions S.A.S. >> Via Poggio alle Viti 1187 >> 55054 Massarosa (LU) >> Italy >> phone: +39 0584 962313 >> fax: +39 0584 1660272 >> mob: +39 333 8128928 >> >> http://www.geo-solutions.it >> http://twitter.com/geosolutions_it >> >> ------------------------------------------------------- >> AVVERTENZE AI SENSI DEL D.Lgs. 196/2003 >> Le informazioni contenute in questo messaggio di posta elettronica e/o >> nel/i file/s allegato/i sono da considerarsi strettamente riservate. >> Il loro utilizzo è consentito esclusivamente al destinatario del >> messaggio, per le finalità indicate nel messaggio stesso. Qualora >> riceviate questo messaggio senza esserne il destinatario, Vi preghiamo >> cortesemente di darcene notizia via e-mail e di procedere alla >> distruzione del messaggio stesso, cancellandolo dal Vostro sistema. >> Conservare il messaggio stesso, divulgarlo anche in parte, >> distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità >> diverse, costituisce comportamento contrario ai principi dettati dal >> D.Lgs. 196/2003. >> >> The information in this message and/or attachments, is intended solely >> for the attention and use of the named addressee(s) and may be >> confidential or proprietary in nature or covered by the provisions of >> privacy act (Legislative Decree June, 30 2003, no.196 - Italy's New >> Data Protection Code).Any use not in accord with its purpose, any >> disclosure, reproduction, copying, distribution, or either >> dissemination, either whole or partial, is strictly forbidden except >> previous formal approval of the named addressee(s). If you are not the >> intended recipient, please contact immediately the sender by >> telephone, fax or e-mail and delete the information in this message >> that has been received in error. The sender does not give any warranty >> or accept liability as the content, accuracy or completeness of sent >> messages and accepts no responsibility for changes made after they >> were sent or for other risks which arise as a result of e-mail >> transmission, viruses, etc. >> >> >> On Thu, Mar 26, 2015 at 8:06 AM, Andrea Aime >> <[email protected]> wrote: >> > On Wed, Mar 25, 2015 at 11:55 AM, gavin.montgomery >> > <[email protected]> wrote: >> >> >> >> Hi, >> >> >> >> It is commonly mentioned to use a standalone geowebcache instance when >> >> serving multiple geoserver instances and to improve performance in >> >> production environments for a high load of customers. For example the >> >> following blog from GeoSolutions: >> >> >> >> >> >> >> >> http://www.geo-solutions.it/blog/real-world-uses-cases-troubleshooting-large-geoserver-deployment/ >> >> >> >> >> >> <http://www.geo-solutions.it/blog/real-world-uses-cases-troubleshooting-large-geoserver-deployment/> >> > >> > >> > Right, this is one of the few cases in which we still deploy a >> > stand-alone >> > GWC. >> > But look at the numbers, we are talking about thousands of requests per >> > second... in this situation >> > it's indeed a good idea to keep it separate, mostly to avoid the sheer >> > number of requests >> > GWC is receiving to dominate your tomcat instance, and leaving little >> > space >> > to wms/wfs. >> > >> > But if you don't have such a demanding deploy, keeping the integrated >> > one >> > it's easier >> > and it's (by far) the more common choice. >> > >> > Cheers >> > Andrea >> > >> > -- >> > == >> > GeoServer Professional Services from the experts! Visit >> > http://goo.gl/NWWaa2 for more information. >> > == >> > >> > Ing. Andrea Aime >> > @geowolf >> > Technical Lead >> > >> > GeoSolutions S.A.S. >> > Via Poggio alle Viti 1187 >> > 55054 Massarosa (LU) >> > Italy >> > phone: +39 0584 962313 >> > fax: +39 0584 1660272 >> > mob: +39 339 8844549 >> > >> > http://www.geo-solutions.it >> > http://twitter.com/geosolutions_it >> > >> > AVVERTENZE AI SENSI DEL D.Lgs. 196/2003 >> > >> > Le informazioni contenute in questo messaggio di posta elettronica e/o >> > nel/i >> > file/s allegato/i sono da considerarsi strettamente riservate. Il loro >> > utilizzo è consentito esclusivamente al destinatario del messaggio, per >> > le >> > finalità indicate nel messaggio stesso. Qualora riceviate questo >> > messaggio >> > senza esserne il destinatario, Vi preghiamo cortesemente di darcene >> > notizia >> > via e-mail e di procedere alla distruzione del messaggio stesso, >> > cancellandolo dal Vostro sistema. Conservare il messaggio stesso, >> > divulgarlo >> > anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo >> > per >> > finalità diverse, costituisce comportamento contrario ai principi >> > dettati >> > dal D.Lgs. 196/2003. >> > >> > >> > >> > The information in this message and/or attachments, is intended solely >> > for >> > the attention and use of the named addressee(s) and may be confidential >> > or >> > proprietary in nature or covered by the provisions of privacy act >> > (Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection >> > Code).Any use not in accord with its purpose, any disclosure, >> > reproduction, >> > copying, distribution, or either dissemination, either whole or partial, >> > is >> > strictly forbidden except previous formal approval of the named >> > addressee(s). If you are not the intended recipient, please contact >> > immediately the sender by telephone, fax or e-mail and delete the >> > information in this message that has been received in error. The sender >> > does >> > not give any warranty or accept liability as the content, accuracy or >> > completeness of sent messages and accepts no responsibility for changes >> > made after they were sent or for other risks which arise as a result of >> > e-mail transmission, viruses, etc. >> > >> > >> > ------------------------------------------------------- >> > >> > >> > ------------------------------------------------------------------------------ >> > Dive into the World of Parallel Programming The Go Parallel Website, >> > sponsored >> > by Intel and developed in partnership with Slashdot Media, is your hub >> > for >> > all >> > things parallel software development, from weekly thought leadership >> > blogs >> > to >> > news, videos, case studies, tutorials and more. 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