[mapguide-users] MGOS 4 Memory Leak

David Bowen dbowenrci at gmail.com
Wed Oct 23 06:01:05 PDT 2024


Thanks Jackie. To provide some further insight into what the memory
consumption looks like, I've included a screengrab of the memory
consumption from the server that has the issue. Each day, memory is
consumed but not released until the MGOS services are restarted every night.

Hope this helps.
David
[image: server_memory_consumption.PNG]

On Wed, Oct 23, 2024 at 5:40 AM Jackie Ng <jumpinjackie at gmail.com> wrote:

> (Copy of reply for the mailing list)
>
> The only tests are new provider test cases I've added exercising the
> provider under API usage scenarios of a regular FDO client application.
> This is my only avenue for finding possible leaks given the absence of
> solid and reproducible data and scenarios where leaks are definitely
> happening.
>
> I'm still fleshing out this provider test suite in the hopes of finding
> more leaks, but if I don't find any more after fleshing out this suite
> there's not much else I can do.
>
> - Jackie
>
> On Wed, 23 Oct 2024 at 06:16, David Bowen <dbowenrci at gmail.com> wrote:
>
>> Hi Jackie,
>>
>> As far as we can tell, we're not using the KingFdoClass metadata table.
>> Are there other memory leak tests being conducted?
>>
>> David
>>
>> On Thu, Oct 10, 2024 at 5:51 PM Jackie Ng via mapguide-users <
>> mapguide-users at lists.osgeo.org> wrote:
>>
>>> Are your King Oracle feature sources using the KingFdoClass metadata
>>> table feature for cleaner class names?
>>>
>>> If so, a leak was identified and plugged on that front.
>>>
>>> https://trac.osgeo.org/fdo/changeset/8279
>>>
>>> This was leaking on every DescribeSchema request where the connection
>>> was configured with the KingFdoClass metadata table. The more rows in that
>>> table, the more leaks per request.
>>>
>>> - Jackie
>>>
>>> You wrote:
>>>
>>> Forgot to mention that once the memory starts to be consumed it's a run
>>> away event, meaning that it doesn't seem to stop until the services fail
>>> and have to be restarted.
>>>
>>> Thanks,
>>> David
>>>
>>>
>>> _______________________________________________
>>> 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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