Graceful shutdown in camel - differences btw 2.2 and 2.6

[guest]

Hello, I have a camel routes (spring based) which I've been running on smx 4.2 for a while.  I recently took the plunge and updated my smx to 4.3 which contains a newer camel (2.2 vs 2.6).  I've noticed that now I get alot of Exceptions on shutdown which I've never had done before.  It seems like there some shutdowns ordering differences between the 2 camel versions ( I did not define any graceful shutdown stuff in either case).  From what I see it looks like the beans in spring gets destroyed, yet the routes are still doing its thig??  Thanks for your help...

Alot of these type of exceptions pop up:

org.apache.camel.RuntimeCamelException: org.springframework.beans.factory.BeanCreationNotAllowedException: Error creating bean with name 'JaxUtilHelper': Singleton bean creation not allowed while the singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!)

org.apache.camel.RuntimeCamelException: org.springframework.beans.factory.BeanCreationNotAllowedException: Error creating bean with name 'JaxUtilHelper': Singleton bean creation not allowed while the singletons of this factory are in destruction (Do not request a bean from a BeanFactory in a destroy method implementation!)

     at org.apache.camel.util.ObjectHelper.wrapRuntimeCamelException(ObjectHelper.java:1139)[68:org.apache.camel.camel-core:2.6.0]

     at org.apache.camel.impl.PropertyPlaceholderDelegateRegistry.lookup(PropertyPlaceholderDelegateRegistry.java:47)[68:org.apache.camel.camel-core:2.6.0]

     at org.apache.camel.component.bean.RegistryBean.lookupBean(RegistryBean.java:136)[68:org.apache.camel.camel-core:2.6.0]

[njiang]

Hi,

Can you try to add a dependsOn attribute on the camelContext to make sure the JaxUtilHelper is destroyed before the CamelContext?

Willem

[guest]

Thanks for the help!  But, i think the problem im having is the bean gets destroyed before the route shutdowns...  Basically the route has queued up messages (seda, jms), and when i do a shutdown the beans gets killed then the routes keep going for a while even though the beans they pass thru are now dead.

[davsclaus]

The big changes is not Camel but Spring.

Camel 2.2 uses Spring 2.5.x by default.

Camel 2.6 uses Spring 3.0.x by default. (eg it was in fact Camel 2.4 that upgraded)

And the spring framework have changed how it handle the lifecycle of its beans. In fact it seems a bit worse than 2.5.

[guest]

Thanks dave, any suggestions on how i could solve this problem?

[davsclaus]

Yeah try to instruct your spring beans to be dependent on camel, using the depends-on attribute.