Cache Problem ??

tjain@deploy.com · **Joined:** Tue May 29, 2007 8:24 am **Posts:** 5

Not sure this is the right forum but any help would highly appreciated -

I am using Hibernate v3.2.2 with ehCache v1.2.4 and i am getting following exception while trying to marshal an object to XML using jibx. This works fine for initial hits but starts failing after that. Also, if i remove ehcache, this works fine. As a workaround, i can clear out hibernate cache and this works fine but i can't do it always. Also, the object i am trying to marshal is quite big and goes very deep in the object hirerchy, contains many collections. So, clearing out individual object is not easy..as for that i have to go through each object and then subobjects and so on.

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org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.deploy.atao.model.DisplaySetValue.localeDisplaySetValue, no session or session was closed
at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
at org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:97)
at org.hibernate.collection.PersistentMap.size(PersistentMap.java:114)
at org.jibx.extras.HashMapperStringToComplex.marshal(Unknown Source)
at ....
so on
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Please let me know if you want any more information.

amila733 · **Posted:** Tue May 29, 2007 9:12 am

Hi

use lazy=false in your list element

Amila

(Don't forget to rate if helps)

satsranchuser · **Posted:** Tue May 29, 2007 9:13 am

Can you try increasing the time-out parameter.

tjain@deploy.com · **Joined:** Tue May 29, 2007 8:24 am **Posts:** 5

amila733 wrote:

Hi

use lazy=false in your list element

Amila

(Don't forget to rate if helps)

"I can't. I don't want to unnecessarily load objects that would be a hit on performance "

kunalmeh · **Joined:** Mon May 28, 2007 10:37 am **Posts:** 3

In that case keep your session open while you are hydrating the object graph to parse the same into XML.

-K
(Rate if this helped)

tjain@deploy.com · **Joined:** Tue May 29, 2007 8:24 am **Posts:** 5

satsranchuser wrote:

Can you try increasing the time-out parameter.

"OK....i done that but no help!!. I am not sure about exact reason for this failure....can anyone dig into Hibernate code and tell me exactly when i can get this error ?.

This may help you in further debugging -
I am using distributed caching and it is possible that object i am working on is updated on another site and please don't ask me to remove distributed caching....i can't :("

tjain@deploy.com · **Joined:** Tue May 29, 2007 8:24 am **Posts:** 5

kunalmeh wrote:

In that case keep your session open while you are hydrating the object graph to parse the same into XML.

-K
(Rate if this helped)

"Session is open....i can see its open even after exception."

rahul dongre · **Posted:** Mon Jun 04, 2007 5:12 pm

Try to change the ehcache.xml settings for your object cache.

Also you can manage this with the programatic ehcaching.