CODEWITHSUNDEEP
c#.netnhibernate
nRk
nRk

Reputation: 1249

NHibernate exception "Session is closed! Object name: 'ISession'."

I am getting the folloinwg error from NHibernate:

System.ObjectDisposedException: Session is closed! Object name: 'ISession'.
   at NHibernate.Impl.AbstractSessionImpl.ErrorIfClosed()
   at NHibernate.Impl.AbstractSessionImpl.CheckAndUpdateSessionStatus()
   at NHibernate.Impl.SessionImpl.FireSave(SaveOrUpdateEvent event)
   at NHibernate.Impl.SessionImpl.Save(Object obj)

I am using NHibernate in .net windows service.
I am not able to trace the excact problem for the exception. This exception occurs very often.
Any one can help me on this to fix this exception?


nrk

Upvotes: 3

Views: 8547

Answers (3)

vapcguy
vapcguy

Reputation: 7545

We had this same issue. Changing the App Pool Managed Pipeline to Classic solved it for us.

Upvotes: 0

Berryl
Berryl

Reputation: 12863

I am guessing you are wrapping your session in a using construct more than once, something like below. Can you post some of your session usage code?

HTH,
Berryl

Wrong - the session is closed after the first using construct:

using(var session = _sessionFactory.GetCurrentSession()
using(var tx = _session.BeginTransaction(){
    ... do something
    tx.Commit();
}


using(var session = _sessionFactory.GetCurrentSession()
using(var tx = _session.BeginTransaction(){
    ... do something else
}

Better- the session is closed after it's work is done

var session = _sessionFactory.GetCurrentSession();

using(var tx = _session.BeginTransaction(){
    ... do something
    tx.Commit();
}


using(var tx = _session.BeginTransaction(){
    ... do something else
    tx.Commit()
}
session.Close()

Upvotes: 6

UpTheCreek
UpTheCreek

Reputation: 32391

As the error says - it looks like you are trying to save an object when your ISession is closed. Are you sure you are opening it? Or perhaps it is being closed prematurely?

Update: Have you checked the NHibernate Logs?

Upvotes: 2

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