Menu
▾
▴
nhibernate-issues
|
From: Fabio M. (JIRA) <nh...@gm...> - 2010-08-02 21:05:25
|
[ http://216.121.112.228/browse/NH-2182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=19508#action_19508 ]
Fabio Maulo commented on NH-2182:
---------------------------------
Yes. We need a little test to recreate the issue.
If you can't write the test as a patch don't worry, do it as a console application (in this case don't send us NH dlls)
> NHibernate.Event.Default.AbstractFlushingEventListener.AbstractFlushingEventListener() can raise Exception when log is DEBUG
> ----------------------------------------------------------------------------------------------------------------------------
>
> Key: NH-2182
> URL: http://216.121.112.228/browse/NH-2182
> Project: NHibernate
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.1.2.GA
> Reporter: Xavier Le Galles
> Priority: Major
>
> Here is what i get when Log4net is in DEBUG (otherwise there is no exception):
> Collection was modified; enumeration operation may not execute.
> at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
> at System.Collections.Generic.Dictionary`2.ValueCollection.Enumerator.MoveNext()
> at NHibernate.Impl.Printer.ToString(IEnumerator enumerator, EntityMode entityMode)
> at NHibernate.Event.Default.AbstractFlushingEventListener.FlushEverythingToExecutions(FlushEvent event)
> at NHibernate.Event.Default.DefaultFlushEventListener.OnFlush(FlushEvent event)
> at NHibernate.Impl.SessionImpl.Flush()
> at NHibernate.Transaction.AdoTransaction.Commit()
> I have checked this method and i found this:
> - at the very beginning of the method, you take a reference to IPersistenceContext persistenceContext = session.PersistenceContext
> - at the end of the method, if log is in DEBUG: if (log.get_IsDebugEnabled())
> - you try to log the context: new Printer(session.Factory).ToString((IEnumerator) persistenceContext.EntitiesByKey.Values.GetEnumerator(), session.EntityMode);
> I have watched the PersistenceContext and yes, it is modified between the beginning and the end of this method: at the beginning, there are 2 entities with no values and at the end 4. Each entity is "doubled" (same ID): one entry has no value, the other one has one. It could be related to the way we calculate the GetHashCode() ...
> If you need more details, i could investigate.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://216.121.112.228/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
|
|
From: Ian C. (JIRA) <nh...@gm...> - 2010-08-26 16:27:10
|
[ http://216.121.112.228/browse/NH-2182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=19723#action_19723 ]
Ian Clegg commented on NH-2182:
-------------------------------
I'm also experiencing this issue with 2.1.2GA (though haven't tried other builds). The exception appears to occur when NHibernate.Impl.Printer is listing the entities during a flush, but encounters an entity that is not loaded in the current session.
At this point it initializes a proxy and retrieves it from the database, initializing any non-lazy collections, associations etc. As it iterates it then throws the exception
In terms of a workaround we found that ensuring all entities to be flushed were initialized before flushing fixed it.
> NHibernate.Event.Default.AbstractFlushingEventListener.AbstractFlushingEventListener() can raise Exception when log is DEBUG
> ----------------------------------------------------------------------------------------------------------------------------
>
> Key: NH-2182
> URL: http://216.121.112.228/browse/NH-2182
> Project: NHibernate
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.1.2.GA
> Reporter: Xavier Le Galles
> Priority: Major
>
> Here is what i get when Log4net is in DEBUG (otherwise there is no exception):
> Collection was modified; enumeration operation may not execute.
> at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
> at System.Collections.Generic.Dictionary`2.ValueCollection.Enumerator.MoveNext()
> at NHibernate.Impl.Printer.ToString(IEnumerator enumerator, EntityMode entityMode)
> at NHibernate.Event.Default.AbstractFlushingEventListener.FlushEverythingToExecutions(FlushEvent event)
> at NHibernate.Event.Default.DefaultFlushEventListener.OnFlush(FlushEvent event)
> at NHibernate.Impl.SessionImpl.Flush()
> at NHibernate.Transaction.AdoTransaction.Commit()
> I have checked this method and i found this:
> - at the very beginning of the method, you take a reference to IPersistenceContext persistenceContext = session.PersistenceContext
> - at the end of the method, if log is in DEBUG: if (log.get_IsDebugEnabled())
> - you try to log the context: new Printer(session.Factory).ToString((IEnumerator) persistenceContext.EntitiesByKey.Values.GetEnumerator(), session.EntityMode);
> I have watched the PersistenceContext and yes, it is modified between the beginning and the end of this method: at the beginning, there are 2 entities with no values and at the end 4. Each entity is "doubled" (same ID): one entry has no value, the other one has one. It could be related to the way we calculate the GetHashCode() ...
> If you need more details, i could investigate.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://216.121.112.228/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
|
|
From: Fabio M. (JIRA) <nh...@gm...> - 2011-05-09 22:27:55
|
[ http://216.121.112.228/browse/NH-2182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=21025#action_21025 ]
Fabio Maulo commented on NH-2182:
---------------------------------
Some months, no test.
> NHibernate.Event.Default.AbstractFlushingEventListener.AbstractFlushingEventListener() can raise Exception when log is DEBUG
> ----------------------------------------------------------------------------------------------------------------------------
>
> Key: NH-2182
> URL: http://216.121.112.228/browse/NH-2182
> Project: NHibernate
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.1.2.GA
> Reporter: Xavier Le Galles
> Priority: Major
>
> Here is what i get when Log4net is in DEBUG (otherwise there is no exception):
> Collection was modified; enumeration operation may not execute.
> at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
> at System.Collections.Generic.Dictionary`2.ValueCollection.Enumerator.MoveNext()
> at NHibernate.Impl.Printer.ToString(IEnumerator enumerator, EntityMode entityMode)
> at NHibernate.Event.Default.AbstractFlushingEventListener.FlushEverythingToExecutions(FlushEvent event)
> at NHibernate.Event.Default.DefaultFlushEventListener.OnFlush(FlushEvent event)
> at NHibernate.Impl.SessionImpl.Flush()
> at NHibernate.Transaction.AdoTransaction.Commit()
> I have checked this method and i found this:
> - at the very beginning of the method, you take a reference to IPersistenceContext persistenceContext = session.PersistenceContext
> - at the end of the method, if log is in DEBUG: if (log.get_IsDebugEnabled())
> - you try to log the context: new Printer(session.Factory).ToString((IEnumerator) persistenceContext.EntitiesByKey.Values.GetEnumerator(), session.EntityMode);
> I have watched the PersistenceContext and yes, it is modified between the beginning and the end of this method: at the beginning, there are 2 entities with no values and at the end 4. Each entity is "doubled" (same ID): one entry has no value, the other one has one. It could be related to the way we calculate the GetHashCode() ...
> If you need more details, i could investigate.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://216.121.112.228/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
|
Thanks for helping keep SourceForge clean.
X