[mapguide-internals] MapGuide 1.2 RC2 and King.Oracle memory leak

[Haris Kurtagic]

Hi Zac,

In general It shouldn't be any significant slow down in provider.
As a meter of fact I didn't saw any memory leaks in King.Oracle code
itself so there were no significant changes of code.

Changes in latest releases of provider includes ( which can be connected
to performance):

1. Problem with memory leaks which I was able to detect was with error
in building with 10.2.0.3 ( 0.7.1 changed back to 10.2.0.1 ). 
2. Disabling caching of FDO schema for several connections which can
cause slower performance with multi user access. I couldn't confirm any
memory issues because of it so I am planning to enable caching again.
3. When provider returns FDO schema to (MapGuide, Map,..) it will create
a copy of FDO schema to solve issue in MapGuide with multiuser
concurrent edits. But FDO schema should be cached inside MapGuide so
this "copy" should occur just once per FDO King.Oracle connection.
4. Creating new Oracle Environment for every new connection ( solving
multi user concurrent access issue)


Are you experiencing performance degradation in provider? If so in
MapGuide or Map ?
Do you experience any memory leaks with 0.7.1 ( MapGuide, Map) ?

Haris

-----Original Message-----
From: mapguide-internals-bounces at lists.osgeo.org
[mailto:mapguide-internals-bounces at lists.osgeo.org] On Behalf Of Zac
Spitzer
Sent: Sunday, July 15, 2007 5:19 PM
To: MapGuide Internals Mail List
Subject: Re: [mapguide-internals] MapGuide 1.2 RC2 and King.Oracle
memory leak

Hi Harris,

I'm curious if fixing the memory leak make any difference to
performance?

On 7/5/07, Haris Kurtagic <haris at sl-king.com> wrote:
> Hi Tom,
>
> I believe I mixed up things with Oracle libraries ( 10.2.0.3 and
> 10.2.0.1 ).
> I hope I solved it with 0.7.1 version of provider
>
> Thank you,
> Haris
>
>
> -----Original Message-----
> From: mapguide-internals-bounces at lists.osgeo.org
> [mailto:mapguide-internals-bounces at lists.osgeo.org] On Behalf Of Tom
> Fukushima
> Sent: Tuesday, July 03, 2007 11:30 PM
> To: MapGuide Internals Mail List
> Subject: RE: [mapguide-internals] MapGuide 1.2 RC2 and King.Oracle
> memory leak
>
> Hi Haris,
>
> The source for RC2 in the tar file is the same as the source used to
> build the binaries.
>
> RC1 was built on June 9th and RC2 was built on June 15th, so you want
> changes that went in on the 9th up to the 14th.  You should be able to
> query subversion to get these submissions.
>
> I'm not sure if RC1 and RC2 are FDO binary compatible, so you may want
> to recompile the SL-King provider with the latest FDO Core as well.
The
> RC2 version is available using the 3.2.2 RC2 links at
> http://fdo.osgeo.org/downloads.html.
>
> Cheers
> Tom
>
> -----Original Message-----
> From: mapguide-internals-bounces at lists.osgeo.org
> [mailto:mapguide-internals-bounces at lists.osgeo.org] On Behalf Of Haris
> Kurtagic
> Sent: Tuesday, July 03, 2007 10:11 AM
> To: MapGuide Internals Mail List
> Subject: [mapguide-internals] MapGuide 1.2 RC2 and King.Oracle memory
> leak
>
> HI,
>
>
>
> I hope someone can give me some idea, I saw a ticket for memory leak
in
> RC2 and King.Oracle and I can reproduce it easily, it is very obvious.
>
>
>
> Problem is that if I use same provider (same binaries ) in RC1 I can't
> see a leak, also if I run provider on MapGuide RC2 which I build (
debug
> and release) I also can't reproduce error.
>
>
>
> Could be that posted release of RC2 ( windows installer ) and posted
RC2
> source are not the same ? ( Long shot question but it really looks
> strange to me ).
>
> How can I see which files has been changed from RC1 to RC2 ?
>
>
>
> Also I done testing in Fdo2Fo and after fixing memory leak in Fdo2Fdo
> itself which was general leak ( no matter of provider ) I also can't
> reproduce it.
>
>
>
> Thanks,
>
> Haris
>
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-- 
Zac Spitzer
http://zacster.blogspot.com/
+49 157 7453 0726 (german mobile)
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