<ehcache>  
    <diskStore path="java.io.tempdir" />  
    <defaultCache    
     maxElementsInMemory = "10000"    
     maxElementsOnDisk = "0"
     eternal = "true"    
     overflowToDisk = "true"    
     diskPersistent = "false"    
     diskSpoolBufferSizeMB = "50"    
     diskExpiryThreadIntervalSeconds = "120"    
     memoryStoreEvictionPolicy = "LFU"    
     />   
    <cache name="com.cloudstore" 
        maxElementsInMemory="10000"
        eternal="true"
        overflowToDisk="true" 
        diskPersistent="true" 
        memoryStoreEvictionPolicy="LFU"  />  
</ehcache>