[jboss-jira] [JBoss JIRA] Commented: (JBCACHE-1149) FIFOPolicy is adding a visited node to the evictionqueue

FIFOPolicy is adding a visited node to the evictionqueue -------------------------------------------------------- Key: JBCACHE-1149 URL: http://jira.jboss.com/jira/browse/JBCACHE-1149 Project: JBoss Cache Issue Type: Bug Security Level: Public(Everyone can see) Components: Eviction, MonthOfBugs_200 Affects Versions: 2.0.0.CR2 Environment: OS: WIn XP SP2; JBOSS AS: 4.0.3; Cache : 2.0.0CR2 Reporter: Maddulety Vankadara Assigned To: Manik Surtani Fix For: 2.0.0.GA Created Eviction Policy with the following config: <attribute name="EvictionPolicyConfig"> <config> <attribute name="wakeUpIntervalSeconds">30</attribute> <attribute name="eventQueueSize">200000</attribute> <!-- Cache wide default --> <region name="/_default_" policyClass="org.jboss.cache.eviction.FIFOPolicy"> <attribute name="maxNodes">500</attribute> </region> </config> </attribute> And then created a region programmatically and assigned FIFOPolicy to that region. FIFOConfiguration evictionConfig = new FIFOConfiguration(); evictionConfig.setMaxNodes(CacheConstants.60); Region rn = getCache().getRegion(Fqn.fromString("\a\b\c"), true); rn.setEvictionPolicy(evictionConfig); Add some nodes under "/a/b/c". All nodes are added to the evictionqueue properly. But when I traverse the region /a/b/c, This node is also added to the evictionqueue and when the queue reaches the limit "MAXNodes"( which is 60 here), the node /a/b/c is evicted from cache. I think a visted node should not be evicted in a FIFO policy. After going through the code, I noticed that VISIT_NODE_EVENT is not ignored in the FIFOPolicy class. Overriding the bemow method in org.jboss.cache.eviction.FIFOPolicy will fix the issue: public boolean canIgnoreEvent(Fqn fqn, NodeEventType eventType) { return (eventType == NodeEventType.VISIT_NODE_EVENT); }