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Option1: You can navigate to \biserver-ee\tomcat\webapps\pentaho\WEB-INF\classes and change the configuration file «ehcache.xml»

<cache name="report-dataset-cache"
maxElementsInMemory="50"
eternal="false"
overflowToDisk="false"
timeToIdleSeconds="1"
timeToLiveSeconds="2"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="1"
/>

If you have done that and still no positive answer, I think you have not restarted the BA server. If the issue still exists comment below.

caching — How to clear cache in Pentaho — Stack Overflow

Option2: I have had the same problem — I get data from a report via a mondrian cube but when the data in DB changes, it is not reflected in the report unless i logout and login again. (i have also set report-cache to false and also in the cube definition cache is set to false).

Here is how i fixed it.

1) in pentaho-solutions\system\mondrian\mondrian.properties» — set «mondrian.rolap.star.disableCaching=» to true
2) in tomcat\tomcat\webapps\pentaho\WEB-INF\classes\classic-engine.properties add the line — org.pentaho.reporting.engine.classic.core.cache.DataCache=
3) in tomcat\tomcat\webapps\pentaho\WEB-INF\classes\ehcache.xml for cache name «mondrian-catalog-cache» set timeToIdleSeconds and timeToLiveSeconds to a small value, say 5

What is interesting is that if i do steps 1 and 2 it works for some reports, and for some reports just step 3 suffices. So for now i have done all three steps.

I am not sure if this will work for you since this approach is based on trial and error rather an understanding of how ehcache works in in the pentaho+mondrian setup.

So while it works for me , there is not a good feeling of comfort that this is the way to do it. Hopefully someone from the pentaho team can throw some light on this.

regards
-anish

Disabling cache for Pentaho