But that's what I'm stumped on - there's no way a session could be left
open:
Begin request:
ManagedWebSessionContext.Bind(HttpContext.Current,
SessionFactory.OpenSession());
End request:
ISession session =
ManagedWebSessionContext.Unbind(HttpContext.Current, SessionFactory);
if (session != null)
{
if (session.Transaction != null &&
session.Transaction.IsActive)
{
session.Transaction.Rollback();
}
else
{
session.Flush();
}
session.Close();
session.Dispose();
}
*
*
*Paul Allington [image: See my
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*
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On Wed, Feb 9, 2011 at 7:28 PM, Fabio Maulo <[email protected]> wrote:
> If you find a reference of one of your entities in
> the StatefulPersistenceContext is because you have an opened session with
> those entities uploaded.
> If it seems to be unexpected then you a leaving opened some sessions.
>
> On Wed, Feb 9, 2011 at 4:19 PM, Paul Allington <
> [email protected]> wrote:
>
>> Yeah, that's just it - I'd expect them to not be referenced at all - but
>> they're referenced indirectly to the SessionFactory. Some of them are
>> referenced by: "SingleTableEntityPersister" or the
>> "StatefulPersistenceContext"
>>
>> *
>> *
>> *Paul Allington [image: See my
>> profile]<http://www.intelligentpenguin.co.uk/about/theteam/paul>
>> *
>> *T:* 01799 522 665
>> *M:* 07973 145 754
>> *E:* [email protected]
>> *W:* www.intelligentpenguin.co.uk
>> *W:* www.creative-penguin.co.uk
>> [image: Intelligent Penguin] <http://www.intelligentpenguin.co.uk> For
>> highly creative & technically brilliant websites, and on-line management
>> systems
>>
>> ------------------------------------------------------------------------------
>> My
>> profiles: [image: Facebook] <http://www.facebook.com/paulallington>[image:
>> LinkedIn] <http://uk.linkedin.com/in/paulallington>[image:
>> Twitter]<http://twitter.com/paulallington>
>> Contact me: [image: Google Talk/]phallington [image: Skype/]paul-allington
>> [image: Y! messenger/]paul_allington
>>
>>
>>
>>
>> On Wed, Feb 9, 2011 at 7:15 PM, John Davidson <[email protected]>wrote:
>>
>>> What you are probably seeing then is delayed garbage collection. The ANTS
>>> profiler should show haw many references there are to the objects in
>>> question. If you think the object should not be there then the reference
>>> should be zero. If it is not zero then it will not be collected.
>>>
>>> I am in the habit of always setting obects = null when finished with
>>> them. I have found it saves a lot of grief.
>>>
>>> John Davidson
>>>
>>> On Wed, Feb 9, 2011 at 2:08 PM, Paul Allington <
>>> [email protected]> wrote:
>>>
>>>> Sorry - that's what this really based on. I was running ANTS earlier
>>>> today to find out just where all the memory is being used from, and about
>>>> 90% of it is NHibernate and objects lingering around. I've ignored all of
>>>> the aspx stuff, as this is just first load, and while there is some other
>>>> .net classes, it's mostly NHibernate. I'm mostly concerned that my data
>>>> objects are being held on to by the SessionFactory (2nd level cache is
>>>> turned off) - for no good reason. I'd also like to know why it needs to
>>>> use
>>>> so much other memory, and unmanaged memory
>>>>
>>>> *
>>>> *
>>>> *Paul Allington [image: See my
>>>> profile]<http://www.intelligentpenguin.co.uk/about/theteam/paul>
>>>> *
>>>> *T:* 01799 522 665
>>>> *M:* 07973 145 754
>>>> *E:* [email protected]
>>>> *W:* www.intelligentpenguin.co.uk
>>>> *W:* www.creative-penguin.co.uk
>>>> [image: Intelligent Penguin] <http://www.intelligentpenguin.co.uk> For
>>>> highly creative & technically brilliant websites, and on-line management
>>>> systems
>>>>
>>>> ------------------------------------------------------------------------------
>>>> My
>>>> profiles: [image: Facebook] <http://www.facebook.com/paulallington>[image:
>>>> LinkedIn] <http://uk.linkedin.com/in/paulallington>[image:
>>>> Twitter]<http://twitter.com/paulallington>
>>>> Contact me: [image: Google Talk/]phallington [image: Skype/]paul-allington
>>>> [image: Y! messenger/]paul_allington
>>>>
>>>>
>>>>
>>>>
>>>> On Wed, Feb 9, 2011 at 6:54 PM, John Davidson <[email protected]>wrote:
>>>>
>>>>> How many aspx pages do you have in the application. The web server
>>>>> caches aspx related data. In my case the application starts at 90MB and
>>>>> grows to around 115-120 MB where the growth stops after I have visited all
>>>>> the pages. I have about 30 very heavy aspx pages. There is no additional
>>>>> memory usage as I request different data of those pages as it is released
>>>>> at
>>>>> the end of the request.
>>>>>
>>>>> If you really are concerned then I suggest you find a memory profiler
>>>>>
>>>>> A free one: http://www.xteprofiler.com/landing1.html (never used)
>>>>> A commercial product from Red Gate: Memory Profiler for .NET - Locate
>>>>> Memory Leaks in
>>>>> moments.<http://www.google.ca/aclk?sa=l&ai=CY_1ZuOJSTfzTOIiVggeS_u3oAeTp688B9LLh6Bm8o-C3MAgAEAEguVRQgvi8oQNg_bCagegDoAH0gcL_A8gBAaoEHE_Q3YcEdQw3LHJLlPnmt2geK0tH2NWX77Tjf3qABZBO&sig=AGiWqtzhR6-XuyPT19a-Ghy8RawzDaHOtA&adurl=http://www.red-gate.com/products/dotnet-development/ants-memory-profiler/%3Futm_source%3Dgoogle%26utm_medium%3Dcpc%26utm_content%3Dunmet_need%26utm_campaign%3Dantsmemoryprofiler>
>>>>>
>>>>> John Davidson
>>>>>
>>>>>
>>>>> On Wed, Feb 9, 2011 at 1:28 PM, Paul Allington <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> The first is how it's working - in fact I think I may have originally
>>>>>> read that article to get the httpmodule to work.
>>>>>>
>>>>>> *
>>>>>> *
>>>>>> *Paul Allington [image: See my
>>>>>> profile]<http://www.intelligentpenguin.co.uk/about/theteam/paul>
>>>>>> *
>>>>>> *T:* 01799 522 665
>>>>>> *M:* 07973 145 754
>>>>>> *E:* [email protected]
>>>>>> *W:* www.intelligentpenguin.co.uk
>>>>>> *W:* www.creative-penguin.co.uk
>>>>>> [image: Intelligent Penguin] <http://www.intelligentpenguin.co.uk> For
>>>>>> highly creative & technically brilliant websites, and on-line management
>>>>>> systems
>>>>>>
>>>>>> ------------------------------------------------------------------------------
>>>>>> My
>>>>>> profiles: [image: Facebook]
>>>>>> <http://www.facebook.com/paulallington>[image:
>>>>>> LinkedIn] <http://uk.linkedin.com/in/paulallington>[image:
>>>>>> Twitter]<http://twitter.com/paulallington>
>>>>>> Contact me: [image: Google Talk/]phallington [image:
>>>>>> Skype/]paul-allington
>>>>>> [image: Y! messenger/]paul_allington
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Wed, Feb 9, 2011 at 6:21 PM, John Davidson
>>>>>> <[email protected]>wrote:
>>>>>>
>>>>>>> Are you using SessionPerRequest as described in
>>>>>>>
>>>>>>>
>>>>>>> http://nhforge.org/blogs/nhibernate/archive/2010/07/11/nhibernate-bootstrapper-unitofwork-and-sessionperrequest.aspx
>>>>>>>
>>>>>>> If you are using that threading then check what FlushMode is.
>>>>>>>
>>>>>>> Also the NHibernate 3.0 Cookbook is an excellent reference NHibernate
>>>>>>> 3.0 Cookbook <https://www.packtpub.com/nhibernate-3-0-cookbook/book>
>>>>>>>
>>>>>>> <https://www.packtpub.com/nhibernate-3-0-cookbook/book>John Davidson
>>>>>>>
>>>>>>> On Wed, Feb 9, 2011 at 1:15 PM, Paul Allington <
>>>>>>> [email protected]> wrote:
>>>>>>>
>>>>>>>> It's in an asp.net web app - it's just a simple architecture at the
>>>>>>>> moment
>>>>>>>>
>>>>>>>> *
>>>>>>>> *
>>>>>>>> *Paul Allington [image: See my
>>>>>>>> profile]<http://www.intelligentpenguin.co.uk/about/theteam/paul>
>>>>>>>> *
>>>>>>>> *T:* 01799 522 665
>>>>>>>> *M:* 07973 145 754
>>>>>>>> *E:* [email protected]
>>>>>>>> *W:* www.intelligentpenguin.co.uk
>>>>>>>> *W:* www.creative-penguin.co.uk
>>>>>>>> [image: Intelligent Penguin] <http://www.intelligentpenguin.co.uk>
>>>>>>>> For
>>>>>>>> highly creative & technically brilliant websites, and on-line
>>>>>>>> management
>>>>>>>> systems
>>>>>>>>
>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>> My
>>>>>>>> profiles: [image: Facebook]
>>>>>>>> <http://www.facebook.com/paulallington>[image:
>>>>>>>> LinkedIn] <http://uk.linkedin.com/in/paulallington>[image:
>>>>>>>> Twitter]<http://twitter.com/paulallington>
>>>>>>>> Contact me: [image: Google Talk/]phallington [image:
>>>>>>>> Skype/]paul-allington
>>>>>>>> [image: Y! messenger/]paul_allington
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Wed, Feb 9, 2011 at 6:13 PM, John Davidson <[email protected]
>>>>>>>> > wrote:
>>>>>>>>
>>>>>>>>> What are the general archictural components? and what is your
>>>>>>>>> threading model?
>>>>>>>>>
>>>>>>>>> John Davidson
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Wed, Feb 9, 2011 at 12:49 PM, Paul <
>>>>>>>>> [email protected]> wrote:
>>>>>>>>>
>>>>>>>>>> Hello
>>>>>>>>>>
>>>>>>>>>> I'm having issues with NHibernate and the amount of memory it
>>>>>>>>>> uses.
>>>>>>>>>> I've tried turning off all caching, however the data objects that
>>>>>>>>>> are
>>>>>>>>>> loaded in each session are still persisting in memory, which isn't
>>>>>>>>>> great. Memory profiling shows that they're being held on to by
>>>>>>>>>> the
>>>>>>>>>> factory (the session has been disposed)
>>>>>>>>>>
>>>>>>>>>> NHibernate seems to just consume about 60MB of my app with no
>>>>>>>>>> reason -
>>>>>>>>>> and about 30MB of that appears to be in unmanaged code...
>>>>>>>>>>
>>>>>>>>>> Any ideas? I'm tearing my hair out!
>>>>>>>>>>
>>>>>>>>>> Thanks, Paul
>>>>>>>>>>
>>>>>>>>>> --
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>>>>>>>>>>
>>>>>>>>> --
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>>>>>>>>
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>>>>>
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>>>>>
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>>>
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>
>
>
> --
> Fabio Maulo
>
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