diff --git a/engine/schema/src/com/cloud/upgrade/dao/DatabaseAccessObject.java b/engine/schema/src/com/cloud/upgrade/dao/DatabaseAccessObject.java
index 1e620a5a584..5d0edddb02e 100644
--- a/engine/schema/src/com/cloud/upgrade/dao/DatabaseAccessObject.java
+++ b/engine/schema/src/com/cloud/upgrade/dao/DatabaseAccessObject.java
@@ -39,7 +39,7 @@ public class DatabaseAccessObject {
             pstmt.executeUpdate();
             s_logger.debug("Key " + key + " is dropped successfully from the table " + tableName);
         } catch (SQLException e) {
-            s_logger.warn("Ignored SQL Exception when trying to drop " + (isForeignKey ? "foreign " : "") + "key " + key + " on table "  + tableName, e);
+            s_logger.debug("Ignored SQL Exception when trying to drop " + (isForeignKey ? "foreign " : "") + "key " + key + " on table "  + tableName + " exception: " + e.getMessage());
 
         }
     }
@@ -49,7 +49,7 @@ public class DatabaseAccessObject {
             pstmt.executeUpdate();
             s_logger.debug("Primary key is dropped successfully from the table " + tableName);
         } catch (SQLException e) {
-            s_logger.warn("Ignored SQL Exception when trying to drop primary key on table " + tableName, e);
+            s_logger.debug("Ignored SQL Exception when trying to drop primary key on table " + tableName + " exception: " + e.getMessage());
         }
     }
 
@@ -68,7 +68,7 @@ public class DatabaseAccessObject {
             pstmt.executeQuery();
             columnExists = true;
         } catch (SQLException e) {
-            s_logger.warn("Field " + columnName + " doesn't exist in " + tableName, e);
+            s_logger.debug("Field " + columnName + " doesn't exist in " + tableName + " ignoring exception: " + e.getMessage());
         }
         return columnExists;
     }
diff --git a/engine/schema/test/com/cloud/upgrade/dao/DatabaseAccessObjectTest.java b/engine/schema/test/com/cloud/upgrade/dao/DatabaseAccessObjectTest.java
index 5d37fbf326a..9a2115e9629 100644
--- a/engine/schema/test/com/cloud/upgrade/dao/DatabaseAccessObjectTest.java
+++ b/engine/schema/test/com/cloud/upgrade/dao/DatabaseAccessObjectTest.java
@@ -70,8 +70,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeUpdate();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(1)).debug(anyString());
-        verify(loggerMock, times(0)).warn(anyString(), any(Throwable.class));
+        verify(loggerMock, times(1)).debug(contains("successfully"));
     }
 
     @Test(expected = NullPointerException.class)
@@ -100,8 +99,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeUpdate();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(0)).debug(anyString());
-        verify(loggerMock, times(1)).warn(anyString(), eq(sqlException));
+        verify(loggerMock, times(1)).debug(contains("Exception"));
     }
 
     @Test
@@ -120,8 +118,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeUpdate();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(0)).debug(anyString());
-        verify(loggerMock, times(1)).warn(anyString(), eq(sqlException));
+        verify(loggerMock, times(1)).debug(contains("Exception"));
     }
 
     @Test
@@ -138,8 +135,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeUpdate();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(1)).debug(anyString());
-        verify(loggerMock, times(0)).warn(anyString(), any(Throwable.class));
+        verify(loggerMock, times(1)).debug(contains("successfully"));
     }
 
     @Test
@@ -157,8 +153,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(0)).executeUpdate();
         verify(preparedStatementMock, times(0)).close();
-        verify(loggerMock, times(0)).debug(anyString());
-        verify(loggerMock, times(1)).warn(anyString(), eq(sqlException));
+        verify(loggerMock, times(1)).debug(contains("Exception"));
     }
 
     @Test
@@ -177,8 +172,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeUpdate();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(0)).debug(anyString());
-        verify(loggerMock, times(1)).warn(anyString(), eq(sqlException));
+        verify(loggerMock, times(1)).debug(contains("Exception"));
     }
 
     @SuppressWarnings("static-access")
@@ -231,8 +225,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeUpdate();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(1)).debug(anyString());
-        verify(loggerMock, times(0)).warn(anyString(), any(Throwable.class));
+        verify(loggerMock, times(1)).debug(contains("successfully"));
     }
 
     @Test(expected = NullPointerException.class)
@@ -257,8 +250,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeUpdate();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(0)).debug(anyString());
-        verify(loggerMock, times(1)).warn(anyString(), eq(sqlException));
+        verify(loggerMock, times(1)).debug(contains("Exception"));
     }
 
     @Test
@@ -274,8 +266,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(0)).executeUpdate();
         verify(preparedStatementMock, times(0)).close();
-        verify(loggerMock, times(0)).debug(anyString());
-        verify(loggerMock, times(1)).warn(anyString(), eq(sqlException));
+        verify(loggerMock, times(1)).debug(contains("Exception"));
     }
 
     @Test
@@ -292,8 +283,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeUpdate();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(0)).debug(anyString());
-        verify(loggerMock, times(1)).warn(anyString(), eq(sqlException));
+        verify(loggerMock, times(1)).debug(contains("Exception"));
     }
 
     @Test
@@ -309,7 +299,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeQuery();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(0)).warn(anyString(), any(Throwable.class));
+        verify(loggerMock, times(0)).debug(anyString(), any(Throwable.class));
     }
 
     @Test(expected = NullPointerException.class)
@@ -336,7 +326,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeQuery();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(1)).warn(anyString(), eq(sqlException));
+        verify(loggerMock, times(1)).debug(anyString());
     }
 
     @Test
@@ -354,7 +344,7 @@ public class DatabaseAccessObjectTest {
         verify(connectionMock, times(1)).prepareStatement(anyString());
         verify(preparedStatementMock, times(1)).executeQuery();
         verify(preparedStatementMock, times(1)).close();
-        verify(loggerMock, times(1)).warn(anyString(), eq(sqlException));
+        verify(loggerMock, times(1)).debug(anyString());
     }
 
     @Test