[Geoserver-users] Performance with huge JPEG2000

GeoServer GeoServer User
1

Hi,

Could you send information about how your JPEG2000 image is created? You can for example download Kakadu demo programs from http://kakadusoftware.com/index.php?option=com_content&task=view&id=26&Itemid=22 and open your image with Kdu_show. From File – Properties menu item you will find lots of useful information.

If you need another JPEG2000 as a reference you can try to get a Finnish topomap from here

http://laillisettorrentit.net/index.php?page=torrent-details&id=ef25a0ea9b876bf963ec7a88f1a3557c1328d852

It is open data under attribution only license but the torrent is not very active.

-Jukka Rahkonen-

···

Fernando Lacunza Prieto wrote:

Hello everyone,

I have a really big JPEG2000 file (598240x638720 pixels, about 54 GB) published in a WMS by GeoServer 2.2 and the GDAL extension. The file is accessed with a JP2MrSID store. The purpose of that WMS is to serve tiles to MapProxy to build a WMTS cache.

Unfortunately, the performance is appalling: each GetMap request lasts 10 to 15 seconds, and after that GeoServer stops responding for another 15 to 20 seconds. At this rate, my WMTS cache would be done in about 5 years, and I do not want to wait so long.

¿Is there some tweaking I can do to increase the performance to acceptable levels? I am a newbie in both GeoServer and MapProxy, and I fear that my approach to the problem could be wrong. Therefore, any suggestions to accomplish the task of building a restful WMTS cache from a JPEG2000 file are welcome.

Thanks!

AVISO SOBRE CONFIDENCIALIDAD: La información incluida en este mensaje es CONFIDENCIAL y de uso EXCLUSIVO a su FINALIDAD. Su posterior divulgación será responsabilidad de quien la realice

2

Hi Jukka,

The file is made with ER Mapper. From Kdu_show I can see that the code stream comment is ECW JPEG 2000 SDK v4.2.0.64 – Licensee: ERDAS IMAGINE/ER Mapper Pro Unlimited

We have another JPEG 2000 made with the same software, only smaller (207000x185680 pixels). GeoServer seems to cope with this file well.

Regards,

Fernando Lacunza

···

De: Rahkonen Jukka [mailto:jukka.rahkonen@anonymised.com]
Enviado el: martes, 02 de abril de 2013 15:06
Para: ‘geoserver-users@lists.sourceforge.net’
Asunto: Re: [Geoserver-users] Performance with huge JPEG2000

Hi,

Could you send information about how your JPEG2000 image is created? You can for example download Kakadu demo programs from http://kakadusoftware.com/index.php?option=com_content&task=view&id=26&Itemid=22 and open your image with Kdu_show. From File – Properties menu item you will find lots of useful information.

If you need another JPEG2000 as a reference you can try to get a Finnish topomap from here

http://laillisettorrentit.net/index.php?page=torrent-details&id=ef25a0ea9b876bf963ec7a88f1a3557c1328d852

It is open data under attribution only license but the torrent is not very active.

-Jukka Rahkonen-

Fernando Lacunza Prieto wrote:

Hello everyone,

I have a really big JPEG2000 file (598240x638720 pixels, about 54 GB) published in a WMS by GeoServer 2.2 and the GDAL extension. The file is accessed with a JP2MrSID store. The purpose of that WMS is to serve tiles to MapProxy to build a WMTS cache.

Unfortunately, the performance is appalling: each GetMap request lasts 10 to 15 seconds, and after that GeoServer stops responding for another 15 to 20 seconds. At this rate, my WMTS cache would be done in about 5 years, and I do not want to wait so long.

¿Is there some tweaking I can do to increase the performance to acceptable levels? I am a newbie in both GeoServer and MapProxy, and I fear that my approach to the problem could be wrong. Therefore, any suggestions to accomplish the task of building a restful WMTS cache from a JPEG2000 file are welcome.

Thanks!

AVISO SOBRE CONFIDENCIALIDAD: La información incluida en este mensaje es CONFIDENCIAL y de uso EXCLUSIVO a su FINALIDAD. Su posterior divulgación será responsabilidad de quien la realice