[mapguide-users] MgOs V2.0 memory problems

[Marius_360]

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

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