I have narrowed it down to 2 of our layers, where when they are
available, the ajax viewer seems to hang at small zooms, or there
becomes a horrendous memory leak, where the smaller the scale becomes,
the more memory is consumed by mgserver.exe. The most I witnessed turned
out to be around 1.2 GB of memory consumed. With these two layers off,
I can zoom down to 1:.001 with no problems. Both of these layers have
line styles, and one has a single label at a particular zoom level, but
they are both sparse compared to a couple of other layers that have
multiple line styles and/or labels. All of our data being applied is
.SDF files.
Traian Stanev wrote:
Try identifying which layer causes the slow down, by selectively turning off
layers. Then see what's peculiar about the layer -- does it have a line style,
or perhaps labeling. There is a known issue around that (layers with lots of
labels at high zoom), which will be fixed very soon.
Traian
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:mapguide-users-
[EMAIL PROTECTED] On Behalf Of Jonathan Manafi
Sent: Monday, February 25, 2008 12:54 PM
To: MapGuide Users Mail List
Subject: Re: [mapguide-users] map refresh timeout
As an update:
We began testing our data upgrading to MGOS 2.0 RC4 without using the
fusion library, and we are noticing the same issues. The AGG renderer
actually causes mgserver.exe to lock up at small zoom scales; today it
happened at 1:254, whereas the GD renderer has yet to lock up, but it
still takes a good period of time to update the map extents. Compared
to
MGOS 1.2 with the same dataset, both renderers perform worse when
zoomed
to a small scale, where, otherwise, they take only split seconds to
update when zoomed far out.
Has anyone seen this behavior with their data, as this could be a
necessary function for our clients?
J Manafi wrote:
I have experienced extremely long refresh rates when the zoom scale
is really
low (~1:33 or so). The time it takes to refresh for the Sheboygan
example is
at least 10x normal, and on a custom map, MapGuide server pretty much
hangs
at ~1:236 (currently sitting and waiting). Has anyone else noticed
this
behavior at low scales?
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