[Geoserver-users] GeoWebCache "Could not find layer WS:Layer" when grouped layer

GeoServer GeoServer User
1

Windows Server 2012 R2 x64, PostgreSQL 9.5, PostGIS 2.2.1, JRE 1.8.66, Tomcat
8.0.29, GeoServer 2.8.1.

I have setup and styled all my layers in GeoServer including one grouped
layer.

I have 1 workspace set as the default workspace, 1 JNDI store in this
workspace, 12 layers in this workspace and store, 12 styles (1 for each
layer) in this workspace. 7 of these layers are grouped to make a "Base"
layer and the other 5 are used as overlay layers. The Base layer and 5
overlays are configured as "Tile Layers"

Using the WMS endpoint (..../geoserver/wms/...) I can view tiles from all 6
published layers.

Using the GeoWebCache endpoint (.../geoserver/gwc/service/wms/...) I can
view tiles from the 5 single layer overlays. Calling the Base layer through
GWC gives the error:
*org.geotools.ows.ServiceException: Could not find layer WS:Base*

What is causing this? How do I work around the issue?

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2

A lot of fiddling and no success. However, I am able to seed the grouped
layer and the tiles are being cached. The problem is viewing them through
the GWC end point... I still need a solution.

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3

I think there are known issues with trying to put groups in workspaces, try searching the mailing list for discussion.

Ian

···

On 21 January 2016 at 14:33, Derek Watling <derek@anonymised.com> wrote:

A lot of fiddling and no success. However, I am able to seed the grouped
layer and the tiles are being cached. The problem is viewing them through
the GWC end point… I still need a solution.

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Ian Turton

4

Thank you Ian

I came across this post that indicates the workspace/group issue was
resolved in GeoServer 2.7:
http://sourceforge.net/p/geoserver/mailman/message/33522228/
I did try the suggestion of adding a filter - no luck.

I have also tried removing the workspace from all constiuent layers and
styles and the grouped layer itself. Can't define a store without a
workspace. Still no luck.

Going to experiment with setting up some test layers from scratch, but still
hoping some clever, advanced GeoServer user will answer with a solution.

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5

Problem solved: On the GeoServer web administration interface "Tile Caching"

"Caching Defaults", "Enable Data Security" was ticked. Simply un-ticking

this option makes the grouped layer work.

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6

On Mon, Jan 25, 2016 at 8:46 AM, Derek Watling <derek@anonymised.com> wrote:

Problem solved: On the GeoServer web administration interface "Tile
Caching"
> "Caching Defaults", "Enable Data Security" was ticked. Simply un-ticking
this option makes the grouped layer work.

Oh, that's interesting? Do you have any data access restrictions setup in
your server?

Cheers
Andrea

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GeoServer Professional Services from the experts! Visit
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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

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7

No data access restrictions and the only issue was accessing a grouped layer
via GeoWebCache.

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8

On Mon, Jan 25, 2016 at 9:41 AM, Derek Watling <derek@anonymised.com> wrote:

No data access restrictions and the only issue was accessing a grouped
layer
via GeoWebCache.

Interesting... if you can reproduce the same problem with a vanilla
installation
(so that the developer trying to fix the problem can easily reproduce on
his machine)
it would be worth opening a ticket here:
https://osgeo-org.atlassian.net/projects/GEOS/summary

Cheers
Andrea

--

GeoServer Professional Services from the experts! Visit
http://goo.gl/it488V 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
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