diff --git a/src/main/java/org/gcube/portlets/user/databasesmanager/server/GWTdbManagerServiceImpl.java b/src/main/java/org/gcube/portlets/user/databasesmanager/server/GWTdbManagerServiceImpl.java
index dc24b22..0773877 100644
--- a/src/main/java/org/gcube/portlets/user/databasesmanager/server/GWTdbManagerServiceImpl.java
+++ b/src/main/java/org/gcube/portlets/user/databasesmanager/server/GWTdbManagerServiceImpl.java
@@ -193,7 +193,8 @@ public class GWTdbManagerServiceImpl extends RemoteServiceServlet implements
 			// config.maxEntriesLocalHeap(10000);
 			config.diskExpiryThreadIntervalSeconds(120);
 			config.maxBytesLocalDisk(2, MemoryUnit.GIGABYTES);
-			config.maxBytesLocalHeap(200, MemoryUnit.MEGABYTES);
+//			config.maxBytesLocalHeap(200, MemoryUnit.MEGABYTES);
+			config.maxBytesLocalHeap(2, MemoryUnit.GIGABYTES);
 			config.diskSpoolBufferSizeMB(30);
 			config.overflowToDisk(true);
 			config.diskPersistent(false);