[jboss-user] [Clustering/JBoss] - Re: Cluster setup

krishnan366 do-not-reply at jboss.com
Tue Mar 17 23:15:32 EDT 2009


Please find the complete configuration file. 

Yes, they are writing to a single shared DB

<?xml version="1.0" encoding="UTF-8"?>
  | <jbosscache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:jboss:jbosscache-core:config:3.0">
  |    
  | 	<locking
  |          isolationLevel="READ_COMMITTED"/>
  |         <transaction
  |                transactionManagerLookupClass="org.jboss.cache.transaction.GenericTransactionManagerLookup"
  |                syncRollbackPhase="false"
  |          syncCommitPhase="false"/>
  |          
  |          
  | 	<clustering mode="replication">
  | 	 
  | 	       
  | 	       <stateRetrieval timeout="20000" fetchInMemoryState="false"/>
  | 	 <sync replTimeout="20000"/>
  | 	       
  | 	 </clustering>
  |          
  |          <eviction wakeUpInterval="500" >
  |          	
  | 		<default algorithmClass="org.jboss.cache.eviction.FIFOAlgorithm" eventQueueSize="100000">			 			
  | 			 <property name="maxNodes" value="100" />	
  | 			 <property name="minTimeToLive" value="36000"/>
  | 		</default>         
  | 		
  | 		<region name="/regionA">
  | 			 <property name="maxNodes" value="3" />	
  | 			 <property name="minTimeToLive" value="2000"/>	
  | 			 
  | 	       	</region>
  |          </eviction>
  |          
  |          
  |        <loaders passivation="false" shared="true">
  |          <preload><node fqn="/"></node></preload>
  |          <loader class="org.jboss.cache.loader.JDBCCacheLoader" async="false" fetchPersistentState="false"
  |               ignoreModifications="false" purgeOnStartup="true">
  |             <properties>
  |                cache.jdbc.datasource=java:/ProjectOracleDS
  |                location=./               
  | 		cache.jdbc.table.drop=false
  | 		cache.jdbc.table.name=cache_loader
  | 		cache.jdbc.table.primarykey=FQN
  | 		cache.jdbc.fqn.column=FQN
  | 		cache.jdbc.node.column=cache_data
  | 		cache.jdbc.parent.column=parent_fqn
  | 		cache.jdbc.sql-concat=1||2
  |             </properties>
  |             
  |       	</loader>
  |       	</loaders>
  |       
  |       
  |       
  |    
  | </jbosscache>   
  | 

I got get this exception 

org.jboss.cache.lock.TimeoutException: Unable to acquire lock on Fqn 


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