diff --git a/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/oldtype/IntermediateNodeWritable.java b/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/oldtype/IntermediateNodeWritable.java
index 82eb51c..3826f86 100644
--- a/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/oldtype/IntermediateNodeWritable.java
+++ b/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/oldtype/IntermediateNodeWritable.java
@@ -48,14 +48,6 @@
         this.reverseReverseList.set(RRList);
         this.nodeId.set(uniqueKey);
     }
-
-    public void reset(int kmerSize) {
-        forwardForwardList.reset();
-        forwardReverseList.reset();
-        reverseForwardList.reset();
-        reverseReverseList.reset();
-        nodeId.reset();
-    }
     
     public KmerListWritable getFFList() {
         return forwardForwardList;
diff --git a/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/KmerListWritable.java b/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/KmerListWritable.java
index eb0bd59..09d353d 100644
--- a/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/KmerListWritable.java
+++ b/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/KmerListWritable.java
@@ -17,8 +17,8 @@
     protected byte[] storage;
     protected int offset;
     protected int valueCount;
-    public int kmerByteSize = 0; 
-    public int kmerlength = 0;
+    public int kmerByteSize = 2; 
+    public int kmerlength = 5;
     protected static final byte[] EMPTY = {};
     
     protected KmerBytesWritable posIter = new KmerBytesWritable();
@@ -160,8 +160,8 @@
     @Override
     public void readFields(DataInput in) throws IOException {
         this.valueCount = in.readInt();
-        setSize(valueCount * kmerByteSize);
-        in.readFully(storage, offset, valueCount * kmerByteSize);
+        setSize(valueCount * kmerByteSize);//kmerByteSize
+        in.readFully(storage, offset, valueCount * kmerByteSize);//kmerByteSize
     }
 
     @Override
diff --git a/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/NodeWritable.java b/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/NodeWritable.java
index 4725e30..76a6171 100644
--- a/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/NodeWritable.java
+++ b/genomix/genomix-data/src/main/java/edu/uci/ics/genomix/type/NodeWritable.java
@@ -154,7 +154,7 @@
 //        out.writeByte(kmerMark);
 //        this.nodeIdList.write(out);
         this.forwardForwardList.write(out);
-        this.forwardReverseList.write(out);
+//        this.forwardReverseList.write(out);
 //        this.reverseForwardList.write(out);
 //        this.reverseReverseList.write(out);
 //        if(kmerMark == KMER.EXIST) 
@@ -166,7 +166,7 @@
 //        kmerMark = in.readByte();
 //        this.nodeIdList.readFields(in);
         this.forwardForwardList.readFields(in);
-        this.forwardReverseList.readFields(in);
+//        this.forwardReverseList.readFields(in);
 //        this.reverseForwardList.readFields(in);
 //        this.reverseReverseList.readFields(in);
 //        if(kmerMark == KMER.EXIST)
diff --git a/genomix/genomix-data/src/test/java/edu/uci/ics/genomix/data/test/KmerListWritableTest.java b/genomix/genomix-data/src/test/java/edu/uci/ics/genomix/data/test/KmerListWritableTest.java
index 71246a1..1bbb771 100644
--- a/genomix/genomix-data/src/test/java/edu/uci/ics/genomix/data/test/KmerListWritableTest.java
+++ b/genomix/genomix-data/src/test/java/edu/uci/ics/genomix/data/test/KmerListWritableTest.java
@@ -30,7 +30,7 @@
             Assert.assertEquals(1, kmerList.getCountOfPosition());
         }
         
-        kmerList.reset(kmer.getKmerLength());
+        kmerList.reset(0);
         //add one more kmer each time and fix kmerSize
         for (int i = 0; i < 200; i++) {
             kmer = new KmerBytesWritable(5);
diff --git a/genomix/genomix-hadoop/src/main/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GenomixReducer.java b/genomix/genomix-hadoop/src/main/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GenomixReducer.java
index 6472f05..e877504 100644
--- a/genomix/genomix-hadoop/src/main/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GenomixReducer.java
+++ b/genomix/genomix-hadoop/src/main/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GenomixReducer.java
@@ -3,6 +3,7 @@
 import java.io.IOException;
 import java.util.Iterator;
 
+import org.apache.hadoop.mapred.JobConf;
 import org.apache.hadoop.mapred.MapReduceBase;
 import org.apache.hadoop.mapred.OutputCollector;
 import org.apache.hadoop.mapred.Reducer;
@@ -15,13 +16,22 @@
 public class GenomixReducer extends MapReduceBase implements
 	Reducer<KmerBytesWritable, NodeWritable, KmerBytesWritable, NodeWritable>{
     
-    private NodeWritable outputNode = new NodeWritable();
-    private NodeWritable tmpNode = new NodeWritable();
+    public static int KMER_SIZE;
+    private NodeWritable outputNode;
+    private NodeWritable tmpNode;
+    
+    @Override
+    public void configure(JobConf job) {
+        KMER_SIZE = GenomixMapper.KMER_SIZE;
+        outputNode = new NodeWritable(KMER_SIZE);
+        tmpNode = new NodeWritable(KMER_SIZE);
+    }
+    
 	@Override
 	public void reduce(KmerBytesWritable key, Iterator<NodeWritable> values,
 			OutputCollector<KmerBytesWritable, NodeWritable> output,
 			Reporter reporter) throws IOException {
-		outputNode.reset(0);
+		outputNode.reset(KMER_SIZE);
 		
 //		//copy first item to outputNode
 //		if(values.hasNext()){
diff --git a/genomix/genomix-hadoop/src/test/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GraphBuildingTest.java b/genomix/genomix-hadoop/src/test/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GraphBuildingTest.java
index 4716072..797efb2 100644
--- a/genomix/genomix-hadoop/src/test/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GraphBuildingTest.java
+++ b/genomix/genomix-hadoop/src/test/java/edu/uci/ics/genomix/hadoop/contrailgraphbuilding/GraphBuildingTest.java
@@ -45,7 +45,7 @@
     
     public void TestMapKmerToNode() throws Exception {
         GenomixDriver driver = new GenomixDriver();
-        driver.run(HDFS_PATH, RESULT_PATH, 0, SIZE_KMER, READ_LENGTH, true, HADOOP_CONF_PATH);
+        driver.run(HDFS_PATH, RESULT_PATH, 1, SIZE_KMER, READ_LENGTH, true, HADOOP_CONF_PATH);
         dumpResult();
     }
     
@@ -77,6 +77,6 @@
         Path src = new Path(RESULT_PATH);
         Path dest = new Path(ACTUAL_RESULT_DIR);
         dfs.copyToLocalFile(src, dest);
-        HadoopMiniClusterTest.copyResultsToLocal(RESULT_PATH, "test.txt", false, conf, true, dfs);
+        HadoopMiniClusterTest.copyResultsToLocal(RESULT_PATH, "actual/test.txt", false, conf, true, dfs);
     }
 }