maxNodes for LRUPolicy is not respected!!!!!!!
I am setting LRU Eviction policy with miltiple regions but it seems like maxNodes settings are not respected. I read the following xml and use setEvictionPolicyConfig(Element a_config) so set policy. Region /reportDefinition/extraInfo is setup to live 30sec and have max node of 2 but when I dump my cache I see 5 nodes. Cache dump output is at the end of this post.
Here is the XML for eviction :
<config> <attribute name="wakeUpIntervalSeconds">5</attribute> <!-- Cache wide default --> <region name="/_default_"> <attribute name="maxNodes">1000</attribute> <attribute name="timeToLiveSeconds">1000</attribute> </region> <region name="/org/jboss/data"> <attribute name="maxNodes">5000</attribute> <attribute name="timeToLiveSeconds">1000</attribute> </region> <region name="/org/jboss/test/data"> <attribute name="maxNodes">5</attribute> <attribute name="timeToLiveSeconds">4</attribute> </region> <!-- ReportDefinition approximate object size: 1000Kb > very small > 0 3000Kb > small > 100Kb 5000Kb > medium > 3000Kb 10000Kb > large > 5000Kb very large > 10000Kb --> <region name="/reportDefinition/verysmall"> <attribute name="maxNodes">25</attribute> <attribute name="timeToLiveSeconds">3600</attribute> </region> <region name="/reportDefinition/small"> <attribute name="maxNodes">15</attribute> <attribute name="timeToLiveSeconds">1800</attribute> </region> <region name="/reportDefinition/medium"> <attribute name="maxNodes">15</attribute> <attribute name="timeToLiveSeconds">1800</attribute> </region> <region name="/reportDefinition/large"> <attribute name="maxNodes">8</attribute> <attribute name="timeToLiveSeconds">1800</attribute> </region> <region name="/reportDefinition/verylarge"> <attribute name="maxNodes">5</attribute> <attribute name="timeToLiveSeconds">1800</attribute> </region> <region name="/reportDefinition/extraInfo"> <attribute name="maxNodes">2</attribute> <attribute name="timeToLiveSeconds">30</attribute> </region> <!-- The following regions are cached for 8 hrs --> <region name="/gpPackage"> <attribute name="maxNodes">100</attribute> <attribute name="timeToLiveSeconds">28800</attribute> </region> <region name="/translation"> <attribute name="maxNodes">25</attribute> <attribute name="timeToLiveSeconds">28800</attribute> </region> <region name="/reportConfigPool"> <attribute name="maxNodes">1</attribute> <attribute name="timeToLiveSeconds">28800</attribute> </region> </config>
Here is the TreeCache.xml:
!-- ===================================================================== -->
<!-- -->
<!-- Customized TreeCache Service Configuration for Tomcat 5 Clustering -->
<!-- -->
<!-- ===================================================================== -->
<server>
<classpath codebase="./lib" archives="jboss-cache.jar, jgroups.jar"/>
<mbean
code="org.jboss.invocation.jrmp.server.JRMPProxyFactory"
name="mydomain:service=proxyFactory,type=jrmp,target=factory">
<attribute
name="InvokerName">jboss:service=invoker,type=jrmp</attribute>
<attribute
name="TargetName">jboss.cache:service=TreeCache</attribute>
<attribute name="JndiName">brsTreeCache</attribute> <attribute
name="InvokeTargetMethod">true</attribute> <attribute
name="ExportedInterface">org.jboss.cache.TreeCacheMBean</attribute>
<attribute name="ClientInterceptors"> <iterceptors>
<interceptor>org.jboss.proxy.ClientMethodInterceptor</interceptor>
<interceptor>org.jboss.proxy.SecurityInterceptor</interceptor>
<interceptor>org.jboss.invocation.InvokerInterceptor</interceptor>
</iterceptors> </attribute>
<depends>jboss:service=invoker,type=jrmp</depends>
<depends>jboss.cache:service=TreeCache</depends>
</mbean>
<!-- ==================================================================== -->
<!-- Defines TreeCache configuration -->
<!-- ==================================================================== -->
<mbean code="org.jboss.cache.TreeCache"
name="jboss.cache:service=TreeCache">
<depends>jboss:service=Naming</depends>
<depends>jboss:service=TransactionManager</depends>
<!-- Enables marshalling which will be used during cluster replication -->
<attribute name="UseMarshalling">true</attribute>
<!-- Configure the TransactionManager -->
<attribute name="TransactionManagerLookupClass">org.jboss.cache.JBossTransactionManagerLookup</attribute>
<!--
Node locking level : SERIALIZABLE
REPEATABLE_READ (default)
READ_COMMITTED
READ_UNCOMMITTED
NONE
-->
<attribute name="IsolationLevel">REPEATABLE_READ</attribute>
<!--
Valid modes are LOCAL
REPL_ASYNC
REPL_SYNC
-->
<attribute name="CacheMode">REPL_ASYNC</attribute>
<!-- Name of cluster. Needs to be the same for all clusters, in order
to find each other
-->
<attribute name="ClusterName">${jboss.partition.name}-main-treecache</attribute>
<!-- JGroups protocol stack properties. Can also be a URL,
e.g. file:/home/bela/default.xml
<attribute name="ClusterProperties"></attribute>
-->
<attribute name="ClusterConfig">
<config>
<!-- UDP: if you have a multihomed machine,
set the bind_addr attribute to the appropriate NIC IP address -->
<!-- UDP: On Windows machines, because of the media sense feature
being broken with multicast (even after disabling media sense)
set the loopback attribute to true -->
<UDP mcast_addr="228.1.2.3" mcast_port="48866"
ip_ttl="64" ip_mcast="true"
mcast_send_buf_size="150000" mcast_recv_buf_size="80000"
ucast_send_buf_size="150000" ucast_recv_buf_size="80000"
loopback="false"/>
<PING timeout="2000" num_initial_members="3"
up_thread="false" down_thread="false"/>
<MERGE2 min_interval="10000" max_interval="20000"/>
<FD shun="true" up_thread="true" down_thread="true"/>
<VERIFY_SUSPECT timeout="1500"
up_thread="false" down_thread="false"/>
<pbcast.NAKACK gc_lag="50" retransmit_timeout="600,1200,2400,4800"
max_xmit_size="8192" up_thread="false" down_thread="false"/>
<UNICAST timeout="600,1200,2400" window_size="100" min_threshold="10"
down_thread="false"/>
<pbcast.STABLE desired_avg_gossip="20000"
up_thread="false" down_thread="false"/>
<FRAG frag_size="8192"
down_thread="false" up_thread="false"/>
<pbcast.GMS join_timeout="5000" join_retry_timeout="2000"
shun="true" print_local_addr="true"/>
<pbcast.STATE_TRANSFER up_thread="false" down_thread="false"/>
</config>
</attribute>
<!--
The max amount of time (in milliseconds) we wait until the
initial state (ie. the contents of the cache) are retrieved from
existing members in a clustered environment
-->
<attribute name="InitialStateRetrievalTimeout">5000</attribute>
<!--
Number of milliseconds to wait until all responses for a
synchronous call have been received.
-->
<attribute name="SyncReplTimeout">10000</attribute>
<!-- Max number of milliseconds to wait for a lock acquisition -->
<attribute name="LockAcquisitionTimeout">15000</attribute>
<!-- 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>
<attribute name="wakeUpIntervalSeconds">5</attribute>
<!-- Cache wide default -->
<region name="/_default_">
<attribute name="maxNodes">1000</attribute>
<attribute name="timeToLiveSeconds">1000</attribute>
</region>
<region name="/org/jboss/data">
<attribute name="maxNodes">5000</attribute>
<attribute name="timeToLiveSeconds">1000</attribute>
</region>
<region name="/org/jboss/test/data">
<attribute name="maxNodes">5</attribute>
<attribute name="timeToLiveSeconds">4</attribute>
</region>
</config>
</attribute>
</mbean>
</server>
Cache Dump:
Node: /
[31-08-2006 11:13:03.843] [292677] [STDOUT] [INFO ] [TP-Processor2] <Empty Node>
[31-08-2006 11:13:03.843] [292677] [STDOUT] [INFO ] [TP-Processor2] Node: /translation
[31-08-2006 11:13:03.843] [292677] [STDOUT] [INFO ] [TP-Processor2] enGeneric=com.bfm.app.viewserver.report.translation.VSTranslation@840613
[31-08-2006 11:13:03.843] [292677] [STDOUT] [INFO ] [TP-Processor2] Node: /reportDefinition
[31-08-2006 11:13:03.843] [292677] [STDOUT] [INFO ] [TP-Processor2] <Empty Node>
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] Node: /reportDefinition/medium
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] check_oad.amg_COREP/TR-MULTI///=com.bfm.app.viewserver.treedefinition.ReportDefinition@1ab0214
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] null/null///=com.bfm.app.viewserver.treedefinition.ReportDefinition@157e43
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] Node: /reportDefinition/extraInfo
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] libor_sum6/TR-MULTI///=com.bfm.app.viewserver.treedefinition.RptDefCacheInfo@11484a7
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] j_active/TR-MULTI///=com.bfm.app.viewserver.treedefinition.RptDefCacheInfo@110710
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] check_oad/TR-MULTI///=com.bfm.app.viewserver.treedefinition.RptDefCacheInfo@1e6badb
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] krd_pv_active/TR-MULTI///=com.bfm.app.viewserver.treedefinition.RptDefCacheInfo@f5b942
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] nlaf_ancillary_fi/TR-MULTI///=com.bfm.app.viewserver.treedefinition.RptDefCacheInfo@55a6ce
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] Node: /reportDefinition/small
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] libor_sum6/TR-MULTI///=com.bfm.app.viewserver.treedefinition.ReportDefinition@13a26c2
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] j_active/TR-MULTI///=com.bfm.app.viewserver.treedefinition.ReportDefinition@c6bf80
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] krd_pv_active/TR-MULTI///=com.bfm.app.viewserver.treedefinition.ReportDefinition@467a3b
[31-08-2006 11:13:03.853] [292687] [STDOUT] [INFO ] [TP-Processor2] Node: /authentication_authorization
[31-08-2006 11:13:03.883] [292717] [STDOUT] [INFO ] [TP-Processor2] com.bfm.app.viewserver.util.collection.ThreeStringKey@f094f2[field1=mcevikce,field2=,field3=fi-tr-multi]=com.bfm.app.viewserver.util.ldap.LDAPCachedCredential@102f00c
[31-08-2006 11:13:03.893] [292727] [STDOUT] [INFO ] [TP-Processor2] com.bfm.app.viewserver.util.collection.ThreeStringKey@fa0801[field1=mcevikce,field2=,field3=]=com.bfm.app.viewserver.util.ldap.LDAPCachedCredential@1ddcf6e