[jboss-user] [JBossCache] - Cannot evict node if the node is put into cache with FQN gen

[jeffreyai]

Hi there,

We are using Jboss Cache 1.4.0.GA and  are running into an  eviction problem. It seems any node put into cache with Long-type FQN cannot be evicted.
The code is like below.

  | Fqn BASE_FQN = new Fqn("xx/product");
  | final Fqn fqn = new Fqn(BASE_FQN, Long.valueOf(productUid));
  | cache.put(fqn, product);
  | 


We tried to trace into the TreeCache.java.
It seems the code always trying to remove a child node by giving a String key.
Here are the code section I quoted from the "_remove" method in TreeCache.java.
      
  |      // remove subtree from parent
  |       parent_node.removeChild(n.getName());
  | 


If we change the code to use String, then eviction works fine.

  | final Fqn fqn = new Fqn(BASE_FQN, String.valueOf(productUid));
  | 

Do I missed something or is this a bug.
BTW, Our eviction strategy is defined as below:

  | 		<!--  Name of the eviction policy class. -->
  | 		<attribute name="EvictionPolicyClass">
  | 			org.jboss.cache.eviction.LRUPolicy
  | 		</attribute>
  | 
  | 		<!--  Specific eviction policy configurations. This is LRU -->
  | 		<attribute name="EvictionPolicyConfig">
  | 			<config>
  | 			 	<!--  This is the interval (in seconds) to process the node events and also to perform
  | 			 		sweeping for the size limit and age-out nodes. -->
  | 				<attribute name="wakeUpIntervalSeconds">10</attribute>
  | 				
  | 				<!--  Cache wide default -->
  | 				<region name="/_default_">
  | 					<!--  This is the maximum number of nodes allowed in this region. Any integer less than or equal to 0
  | 						will throw an exception when the policy provider is being configured for use. -->
  | 					<attribute name="maxNodes">50000</attribute>
  | 					
  | 					<!--  Time to idle (in seconds) before the node is swept away. 0 denotes no limit. -->
  | 					<attribute name="timeToLiveSeconds">600</attribute>
  | 					
  | 					<!-- Time an object should exist in TreeCache (in seconds) regardless of idle time before the
  | 						node is swept away. 0 denotes no limit. -->
  | 					<attribute name="maxAgeSeconds">3600</attribute>
  | 				</region>
  | 			</config>
  | 		</attribute>
  | 

Thanks in advance.


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