[mapguide-users] MgOs V2.0 memory problems

Zac Spitzer zac.spitzer at gmail.com
Tue Apr 15 09:39:39 EDT 2008


which version are you using, instant client or full client?

make sure with the instant client that the dll's are in the fdo
directory, not a subdir of the fdo directory

i have seen this problem before, i was recommend to use the instant
client version with the exact version of the sl-king site

On Tue, Apr 15, 2008 at 11:32 PM, Marius_360 <marius at openspatial.co.za> wrote:
>
>  Using SDF's are unfortunatly not an option. The tolerance I am using is 10cm
>  (I am asuming you are talking about the tolerance in the metadata table). At
>  the moment there are at most 4 layers on at any one time, but I have tried
>  with only one layer, it then just takes longer for the memory to be used up,
>  but eventually the result is the same.
>
>  The overall performance is fine till all the memory is used up. Is this
>  perhaps not some sort of memory leak?
>
>
>
>
>
>  zspitzer wrote:
>  >
>  > there is a big overhead in using oracle, basically FDO involves
>  > getting a WKT type
>  > datatype out of oracle spatial datatype which is quite an overhead.
>  >
>  > if you try using the oracle WKT functions via sql you will see a
>  > similar conversion overhead
>  >
>  > Your better off moving static data into SDF's to avoid that conversion
>  > every time you
>  > make a map  or at least make use of tiled maps for base oracle layers.
>  >
>  > That said, you shouldn't be having the problems your seeing...
>  >
>  > generalising your data might help... what's the tolerance of your data?
>  > depending on what your doingthere's not much point in making maps at
>  > street level with
>  > data that is down to say 5mm if you get my drift, when 1m would suffice
>  >
>  > how does it perform with just a single oracle layer? can you isolate
>  > the problem down a bit?
>  >
>  > z
>  >
>  > On Tue, Apr 15, 2008 at 9:04 PM, Marius_360 <marius at openspatial.co.za>
>  > wrote:
>  >>
>  >>  Hi All
>  >>
>  >>  My map runs on Windows Server 2003, Oracle 10Gr2, Mapguide Opensource 2
>  >> and
>  >>  the latest King providers but I am encountering problems when zooming in
>  >> a
>  >>  few times. After zooming in 2-3 times I get no more response from the
>  >> map
>  >>  i.e a blank screen and no more loading. When I have a look at the server
>  >>  memory usage, the mapguide service is using 75% of the total available
>  >> ram
>  >>  (1.5gb out of 2gb).When I close the map as well as Studio the memory is
>  >> not
>  >>  freed up. After restarting the server and opening the map again the
>  >> memory
>  >>  used steadily climbs up to 1.5gb again. The oracle spatial layers I am
>  >> using
>  >>  so far are not even close to that size, so I don't know what the problem
>  >> is.
>  >>
>  >>  Does anyone have an Idea what is happening?
>  >>
>  >>  Regards,
>  >>
>  >>  Marius
>  >>  --
>  >>  View this message in context:
>  >> http://www.nabble.com/MgOs-V2.0-memory-problems-tp16699534s16610p16699534.html
>  >>  Sent from the MapGuide Users mailing list archive at Nabble.com.
>  >>
>  >>  _______________________________________________
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>  >>
>  >
>  >
>  >
>  > --
>  > Zac Spitzer -
>  > http://zacster.blogspot.com (My Blog)
>  > +61 405 847 168
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>  > http://lists.osgeo.org/mailman/listinfo/mapguide-users
>  >
>  >
>
>  --
>  View this message in context: http://www.nabble.com/MgOs-V2.0-memory-problems-tp16699534s16610p16700574.html
>
>
> Sent from the MapGuide Users mailing list archive at Nabble.com.
>
>  _______________________________________________
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>



-- 
Zac Spitzer -
http://zacster.blogspot.com (My Blog)
+61 405 847 168


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