IGNITE-7505 Fixing OOME in the test
diff --git a/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/IgniteClusterActivateDeactivateTest.java b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/IgniteClusterActivateDeactivateTest.java
index 27739a2..71718c9 100644
--- a/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/IgniteClusterActivateDeactivateTest.java
+++ b/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/IgniteClusterActivateDeactivateTest.java
@@ -124,11 +124,11 @@
         DataStorageConfiguration memCfg = new DataStorageConfiguration();
         memCfg.setPageSize(4 * 1024);
         memCfg.setDefaultDataRegionConfiguration(new DataRegionConfiguration()
-            .setMaxSize(10 * 1024 * 1024)
+            .setMaxSize(300 * 1024 * 1024)
             .setPersistenceEnabled(persistenceEnabled()));
 
         memCfg.setDataRegionConfigurations(new DataRegionConfiguration()
-            .setMaxSize(10 * 1024 * 1024)
+            .setMaxSize(300 * 1024 * 1024)
             .setName(NO_PERSISTENCE_REGION)
             .setPersistenceEnabled(false));