[mapguide-users] Memory leak with MGOS 4 Beta 1

David Bowen dbowenrci at gmail.com
Wed Feb 7 05:57:25 PST 2024


Thanks Jackie. Is there anything else that we could be looking at to
determine where the leak could be occurring? Is there any way to log which
layers are turned on in the map?

Also, what is the QUERYMAPFEATURES entry in the access.log doing? We've
noticed that for an address searched, there's a random number of polygons
drawn around the address but none seem to correlate with the geocoded
coordinates.

Image 1: The QUERYMAPFEATURES (red polygons) in relation to the address
searched (blue dot).
[image: image.png]

Thanks,
David

On Sat, Feb 3, 2024 at 3:23 AM Jackie Ng <jumpinjackie at gmail.com> wrote:

> Ok failing that, I'll pencil in a memory leak sweep in the beta 2 dev
> cycle for the King Oracle provider just like I did previously for the GDAL
> provider.
>
> https://trac.osgeo.org/fdo/ticket/1005
>
> - Jackie
>
> On Sat, 3 Feb 2024 at 06:12, David Bowen <dbowenrci at gmail.com> wrote:
>
>> We've looked through the access.log but nothing stands out in the
>> preceding activity. There's nothing specific during the memory ramp up
>> period that we don't see at other times.
>>
>> David
>>
>> On Wed, Jan 31, 2024 at 12:01 AM Jackie Ng via mapguide-users <
>> mapguide-users at lists.osgeo.org> wrote:
>>
>>> Could you correlate the time period of 11.15am - 11.45am (where the
>>> memory usage ramps up) with entries in your access.log and see which
>>> operations are involved?
>>>
>>> - Jackie
>>>
>>> You wrote:
>>>
>>> Hello Pierre,
>>>
>>> The server is running Windows 2022 Standard, we're using Apache Server and
>>> Oracle database. There aren't any error messages generated during the
>>> memory leak. We've monitored the Memory usage on this server and notice
>>> that memory consumption increases during the incidents (image 1). We tried
>>> turning on/off layers, while monitoring the memory usage, which is how we
>>> figured out the CLOBs issue but we haven't been able to figure out what's
>>> causing the remaining memory leak.
>>>
>>>
>>> Image 1: percent memory utilization on the server showing the increase
>>> until the MapGuide services become unresponsive at the peak and have to be
>>> restarted.
>>> [image: image.png]
>>>
>>> _______________________________________________
>>> mapguide-users mailing list
>>> mapguide-users at lists.osgeo.org
>>> https://lists.osgeo.org/mailman/listinfo/mapguide-users
>>>
>>
>
> --
> http://themapguyde.blogspot.com
>
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