Perhaps you should avoid automatic creation of cache for your layers and manage all by hand (consider GeoServer has a WMS source of GeoWebCache).
Alexandre Le jeu. 22 juin 2023 à 13:35, Stephan H. <herr.me...@gmx.de> a écrit : > Hi Ian an Andrea, > > thanks for your input, I really appreciate it. > > your answers helped, thanks. > > In my case I only need to change the MinScaleDenoms inside the SLD to make > the styleing-rule available for another zoom-scale. So no need to recreate > the whole bunch of tiles, only seed another additional scale. My SLDs > currently have the MinScaleDnoms fitting to the used > tiling-scheme-scale-breaks though. > > As a workarround I will mount an empty tile-storage-volume, do my changes > inside the SLDs, let geoserver delete all (non-existant) tiles and remount > the storage with the seeded tiles back in, and start seeding the additional > scale-level. This is untested though, hope this will do... > > I hoped there was somewhere a hidden variable to set to stop the > cache-truncation. > > Anyway, thanks for your help! > > Best > > Stephan > > > Am 22.6.2023 09:17, schrieb Andrea Aime: > > On Wed, Jun 21, 2023 at 4:44 PM Ian Turton <ijtur...@gmail.com> wrote: > > Again GeoServer has no way of knowing (without a lot of work) which tiles > are invalid with a style change so it needs to redraw all of them > > > A comparison of two SLD trees would be possible, figuring out if the edits > changed the tiles, but as you say, > it's going to be complicated. Having the automatic tile drop automation > admin controllable (on/off) is certainly easier. > > There are some classes of edits that could be identified, which do not > affect, or just partially affect, the tiles: > > - Changes rule names, titles and the like > - Changes in a rule that is active only in a given scale range (just > drop tiles in such range) > - Changes in a rule that matches only certain features (attribute > filter), figure out their bbox if there is a quick way to do so, only drop > in the bbox > > As said, far away from trivial... a parallel scan of the two SLD object > trees would have to be implemented, which goes > hunt for certain types of differences. > > Cheers > Andrea > > > == > GeoServer Professional Services from the experts! > > Visit http://bit.ly/gs-services-us for more information. > == > > Ing. Andrea Aime > @geowolf > Technical Lead > > GeoSolutions Group > phone: +39 0584 962313 > > fax: +39 0584 1660272 > > mob: +39 339 8844549 > > https://www.geosolutionsgroup.com/ > > http://twitter.com/geosolutions_it > > ------------------------------------------------------- > > Con riferimento alla normativa sul trattamento dei dati personali (Reg. UE > 2016/679 - Regolamento generale sulla protezione dei dati "GDPR"), si > precisa che ogni circostanza inerente alla presente email (il suo > contenuto, gli eventuali allegati, etc.) è un dato la cui conoscenza è > riservata al/i solo/i destinatario/i indicati dallo scrivente. Se il > messaggio Le è giunto per errore, è tenuta/o a cancellarlo, ogni altra > operazione è illecita. Le sarei comunque grato se potesse darmene notizia. > > This email is intended only for the person or entity to which it is > addressed and may contain information that is privileged, confidential or > otherwise protected from disclosure. We remind that - as provided by > European Regulation 2016/679 "GDPR" - copying, dissemination or use of this > e-mail or the information herein by anyone other than the intended > recipient is prohibited. If you have received this email by mistake, please > notify us immediately by telephone or e-mail > > > _______________________________________________ > Geoserver-users mailing list > > 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 > > > Geoserver-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geoserver-users > -- Alexandre Gacon
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