I am experiencing significant delays in rendering png8 tiles from geoserver when the data is stored in in SQL server opposed to a shapefile.
There are almost 2 million polygon objects (Ordnance Survey Vector Map Local Buildings region).
The SLD is configured only to render the buildings when zoomed right in. It can take a couple of minutes to load and sometimes needs the geoserver service to be restarted.
Any ideas?
On Thu, Oct 16, 2014 at 10:26 AM, Alvey,David (Chief Executives) <
David.Alvey@anonymised.com> wrote:
I am experiencing significant delays in rendering png8 tiles from
geoserver when the data is stored in in SQL server opposed to a shapefile.There are almost 2 million polygon objects (Ordnance Survey Vector Map
Local Buildings region).The SLD is configured only to render the buildings when zoomed right in.
It can take a couple of minutes to load and sometimes needs the geoserver
service to be restarted.
Even if the spatial index is there, sql server might decide not to use it
if parallel queries are enabled (because the query planner is just dumb,
I'm afraid).
We added the ability to specify query hints in the data store configuration
in recent versions to basically force sql server to use the spatial index
despite the sql server query planner bad judgement
Cheers
Andrea
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
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Hi.
I hope this PPT will usable to you.
http://www.slideshare.net/jangbi882/foss4-g-portland-2014-jhkwunver2
It is case of rendering big size vector date by GeoServer with PostGIS.
I think page 25 will help you. There is a SQL for find slow query.
Regards,
BJ Jang
2014-10-16 18:25 GMT+09:00 Andrea Aime <andrea.aime@anonymised.com>:
Comprehensive Server Monitoring with Site24x7.
Monitor 10 servers for $9/Month.
Get alerted through email, SMS, voice calls or mobile push notifications.
Take corrective actions from your mobile device.
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Geoserver-users mailing list
Geoserver-users@anonymised.comsts.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users
–
----------------------------------------------------------
Open Source GIS Technical Manager / e-Cartographer
BJ Jang
Gaia3D Inc,
On Thu, Oct 16, 2014 at 10:26 AM, Alvey,David (Chief Executives) <David.Alvey@anonymised.com> wrote:
I am experiencing significant delays in rendering png8 tiles from geoserver when the data is stored in in SQL server opposed to a shapefile.
There are almost 2 million polygon objects (Ordnance Survey Vector Map Local Buildings region).
The SLD is configured only to render the buildings when zoomed right in. It can take a couple of minutes to load and sometimes needs the geoserver service to be restarted.
Even if the spatial index is there, sql server might decide not to use it if parallel queries are enabled (because the query planner is just dumb, I’m afraid).
We added the ability to specify query hints in the data store configuration in recent versions to basically force sql server to use the spatial index despite the sql server query planner bad judgement
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.