diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3cba894
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+parquet
+.idea
+tmp
+target
+*.iml
+/derby.log
diff --git a/derby.log b/derby.log
deleted file mode 100644
index 12db8de..0000000
--- a/derby.log
+++ /dev/null
@@ -1,13 +0,0 @@
-----------------------------------------------------------------
-Wed Jul 20 09:02:51 EDT 2016:
-Booting Derby version The Apache Software Foundation - Apache Derby - 10.11.1.1 - (1616546): instance a816c00e-0156-0866-d12c-00000b48bae0 
-on database directory /private/var/folders/qt/cn_zyr3d4t75mpmf2rtp11600000gp/T/spark-47018fe4-50c1-4746-b1bd-afce4f0d29db/metastore with class loader sun.misc.Launcher$AppClassLoader@58d25a40 
-Loaded from file:/Users/ted.malaska/.m2/repository/org/apache/derby/derby/10.11.1.1/derby-10.11.1.1.jar
-java.vendor=Oracle Corporation
-java.runtime.version=1.8.0_91-b14
-user.dir=/Users/ted.malaska/Documents/workspace/github/SparkUnitTestingExamples
-os.name=Mac OS X
-os.arch=x86_64
-os.version=10.11.3
-derby.system.home=null
-Database Class Loader started - derby.database.classpath=''
diff --git a/pom.xml b/pom.xml
index 9e2c09d..c35215c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -113,6 +113,7 @@
                 <configuration>
                     <charset>UTF-8</charset>
                     <scalaVersion>${scala.version}</scalaVersion>
+                    <mainSourceDir>${project.basedir}/src/main/scala</mainSourceDir>
                 </configuration>
                 <executions>
                     <execution>
@@ -133,6 +134,15 @@
                 </executions>
             </plugin>
 
+            <!-- disable surefire tests -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <skipTests>true</skipTests>
+                </configuration>
+            </plugin>
+
             <plugin>
                 <groupId>org.scalatest</groupId>
                 <artifactId>scalatest-maven-plugin</artifactId>
@@ -170,6 +180,7 @@
                     </execution>
                 </executions>
             </plugin>
+
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
@@ -212,6 +223,19 @@
                     </execution>
                 </executions>
             </plugin>
+
+            <!-- clean-up parquet directory -->
+            <plugin>
+                <artifactId>maven-clean-plugin</artifactId>
+                <configuration>
+                    <filesets>
+                        <fileset>
+                            <directory>parquet</directory>
+                        </fileset>
+                    </filesets>
+                </configuration>
+            </plugin>
+
         </plugins>
 
     </build>