diff --git a/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/PfbProcessor.java b/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/PfbProcessor.java
index 7ca5b105..6968a587 100644
--- a/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/PfbProcessor.java
+++ b/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/PfbProcessor.java
@@ -73,7 +73,6 @@ private Map<String, Map<Integer, List<String>>> buildResult(AsyncResult result,
         int columnCount = paths.size() + 1;
 
         ArrayList<Integer> columnIndex = abstractProcessor.useResidentCubesFirst(paths, columnCount);
-        ResultStore results = new ResultStore(result.getId(), columns, ids);
 
         // todo: investigate if the parallel stream will thrash the cache if the number of executors is > number of resident cubes
         columnIndex.parallelStream().forEach((columnId)->{
diff --git a/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/io/PfbWriter.java b/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/io/PfbWriter.java
index 93564c89..59a56057 100644
--- a/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/io/PfbWriter.java
+++ b/processing/src/main/java/edu/harvard/hms/dbmi/avillach/hpds/processing/io/PfbWriter.java
@@ -81,7 +81,7 @@ public void writeHeader(String[] data) {
         dataFileWriter = new DataFileWriter<GenericRecord>(datumWriter);
         try {
             log.info("Creating temp avro file at " + file.getAbsoluteFile());
-            dataFileWriter.setCodec(CodecFactory.deflateCodec(5));
+            dataFileWriter.setCodec(CodecFactory.nullCodec());
             dataFileWriter.create(entitySchema, file);
         } catch (IOException e) {
             throw new UncheckedIOException(e);
diff --git a/processing/src/test/java/edu/harvard/hms/dbmi/avillach/hpds/processing/io/PfbWriterTest.java b/processing/src/test/java/edu/harvard/hms/dbmi/avillach/hpds/processing/io/PfbWriterTest.java
index 4f1b04d3..e355de18 100644
--- a/processing/src/test/java/edu/harvard/hms/dbmi/avillach/hpds/processing/io/PfbWriterTest.java
+++ b/processing/src/test/java/edu/harvard/hms/dbmi/avillach/hpds/processing/io/PfbWriterTest.java
@@ -20,7 +20,7 @@ public void writeValidPFB() {
         pfbWriter.writeMultiValueEntity(List.of(
                 List.of(List.of("123"), List.of("80"), List.of("Y")),
                 List.of(List.of("456"), List.of("70"),List.of("N", "Y")),
-                List.of(List.of("789"), List.of("75"), List.of())
+                List.of(List.of(), List.of("75"), List.of())
         ));
         pfbWriter.close();
         // todo: validate this programatically