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I have written a server that accepts a batch of route requests and returns route maps and directions for each such requests. The problem is that everytime calculate() method is called the VM size of the process grows and calling the clear() method of the route does not seem to release all the allocated memory (The process grows by 500k each time for a route containing two waypoints and two pushpins). I even explicitly delete the waypoints and pushpins. I have tried to use newmap() between each requests and even called quit() method on the application object and instantiated a brand new one. None of these helped.

Are there any other datasets (e.g. directions) that need to be explicitly released and, if so, how.

Thx.

Hi,

yes. the same leak is in mappoint.exe also Hopfully it is solved in next version.

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rgds, Wilfried Mestdagh
www.mestdagh.biz
MapPoint coding demo
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Have you tried setting the objects you instantiated for the routes to NOTHING?

like:
Dim routeMap As MapPoint.Map
Dim objRoute As MapPoint.Route
Dim objSA As MapPoint.StreetAddress

then set them all to nothing at the end of the method

routeMap=NOTHING
objRoute=NOTHING
objSA = NOTHING

Wilfried, Rather than a memory leak, I think it is probably a case of lazy garbage collection?
Lazy from our point of view that is - for many situations it is probably just right.

Your trick with sending minimize/restore messages to MapPoint forces MapPoint to garbage collect. Doesn't work for in-process addins, but does work for external applications.

Richard

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Richard,

Thanks for your clear view (as always)

I think you ar right. I have a few servers doing almost nothing else than route calculation and they dont run out of memory...

I was to fast answering doing only a little test with too fast conclusions

__________________
rgds, Wilfried Mestdagh
www.mestdagh.biz
MapPoint coding demo
Order MapPoint 2009 with Routing and User Tools Spreadsheet