agent cannot connect to the server. java.lang.ClassNotFoundException: org.hibernate.collection.PersistentMap

John Mazzitelli mazz at
Fri Jun 25 14:30:19 UTC 2010

This is what I see that indicates problems:

2010-06-25 14:59:30,215 INFO  [InventoryManager.discovery-1] 
(rhq.core.pc.inventory.InventoryManager)- Got unknown resource: 11938

this means the inventory is not in sync between agent and server and is 
very bad. When agents get in sync, it usually means something really 
wrong happened - because the agent and server have handshaking between 
themselves to keep themselves in sync.

and you can see the sync handshaking failed here:

2010-06-25 14:59:53,281 WARN  [InventoryManager.discovery-1] 
(rhq.core.pc.inventory.InventoryManager)- Failed to synchronize local 
inventory with Server inventory for Resource [11938] and its 
descendants: Can not connect http client invoker. 
org.hibernate.collection.PersistentMap. Response: OK/200.

Something really odd is happening - did you upgrade the server? change 
database endpoints? I can't think of how this could occur, but something 
out of the ordinary happened.

On 06/25/2010 10:27 AM, Alexey Kamenchuk wrote:
> 2010-06-25 14:59:30,215 INFO  [InventoryManager.discovery-1]
> (rhq.core.pc.inventory.InventoryManager)- Got unknown resource: 11938

More information about the rhq-users mailing list