anonymous wrote : need to optimize the cache to find more as possible data in cache Do you need queries like: 'I need all the cached data from 3 Jul 06 to 14 Apr 09'? If so organizing the cache as follows might make the query very flexible as you can specify any boundaries. This results in as much as possible data being returned. | /root | /2006 | /01 | /01 | /data1 | /data2 | /02 | ... | /31 | /02 | /data1 | /data2 | /2007 | ... | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4098740#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...