Hi Julian,
Andrea is the rendering expert and can answer more intelligently but I
would assume you are correct in your assumption. When GeoServer receives
a tiled map request it does some internal metatiling to deal with issues
such as labels at the edges of tiles, etc... I also believe it does some
internal caching of labels and what not. I am not sure what it keeps
around in terms of state but any state it does keep around to deal with
tiling issues will be invalidated by a load balancer.
Andrea just did a bunch of work analyzing performance of rendering with
a load balancer in the mix. He can speak for days on the subject :)
-Justin
jberti wrote:
> I checked into this issue a bit and it has thrown up some questions for
> myself.
> First off, it seems to me when I have GeoServer running on 2 containers that
> Apache is load balancing while the application is drawing a layer which
> leads to different parts of the layer coming from different GeoServers. Can
> this be? Like in more detail, lets say I draw a layer with 8 tiles and tile
> 1 comes from GeoServer 1, then tile 2 from GeoServer 2 and so on. Can this
> be the case?
> Then this error could be due to this behavior that the tiles or in this case
> lines are drawn from different GeoServers.
>>From what I've seen it can be due to some issue with running GeoServer on 2
> containers, because the error message seems to have disappeared as we shut
> off one container and had just one GeoServer up without changing something.
> If someone could explain to me as to whether or not this might be the case
> it would be really appreciated.
>
>
> Julian
>
>
>
> jberti wrote:
>> I've gotten this error for one of my layer collections and it seems that
>> it is happening on the Line drawing, where I also add a label along the
>> line.
>> The error message looks just like the one in:
>>
http://jira.codehaus.org/browse/GEOT-2633>> Therefore I guess it is the same bug.
>> I just wanted to check if anybody has worked on it already or if you could
>> at least point me into the right direction as to what this error is and
>> what causes it. I would try to fix it myself then if needed or just find a
>> workaround.
>> Any ideas are welcome.
>>
>> Thanks,
>> Julian
>>
>
--
Justin Deoliveira
OpenGeo -
http://opengeo.orgEnterprise support for open source geospatial.
------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now.
http://p.sf.net/sfu/bobj-july_______________________________________________
Geoserver-users mailing list
Geoserver-users@...
https://lists.sourceforge.net/lists/listinfo/geoserver-users
