Hi Jason, I can't share direct experience about BIL, but the one time I glanced over the code, it seemed like it was making GeoServer renders a map in 8 bits, just to throw it away and start over encoding the raw data [1]. If anything, that seems inefficient :-D
If it's a true deadlock, then find out the process id of GeoServer, go to the command line, and run: jstack pid The output should give you an idea of what the JVM threads were doing, and if there is a true deadlock, it will also be reported at the end of the output. Cheers Andrea [1]: See https://github.com/geoserver/geoserver/blob/main/src/community/dds/src/main/java/org/geoserver/wms/worldwind/BilMapResponse.java#L93 The base class renders an 8bit output image, which is passed to this method... it happily proceeds to ignore it and then builds a response starting over from the request object. On Tue, Sep 21, 2021 at 2:36 AM Jason Newmoyer <ja...@newmoyergeospatial.com> wrote: > We are using the BIL/DDS extension to provide elevation data through the > WMS and an ImageMosaic layer of 16 bit geotiffs. > > We see GeoServer deadlocking consistently when image/bil GetMap requests > are being made to the server with large bounding boxes. I believe these are > errant requests by the client, but instead of having them timeout in the > worst case, they actually make geoserver unresponsive. Jetty will just > start returning 404s for everything. Only restarting the service will bring > it back. > > In troubleshooting, we are noticing two things: > 1) When making GetMap requests with the "image/png" output format, the > rendering process seems to ignore stylesheets. This is made obvious by the > scale dependencies we have set in the default style not having any > effect. 2) Also, setting the "Maximum number of granules to load" > setting seems to have no effect, which I would typically use a safeguard > for this type of situation. > > Wondering if anyone knows a workaround or does this sound like a bug in > the WMS rendering path for BIL? > > Thank you. > > Jason Newmoyer > Newmoyer Geospatial Solutions > 843.606.0424 > ja...@newmoyergeospatial.com > > > _______________________________________________ > 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 > -- Regards, Andrea Aime == 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: +39 333 8128928 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
