Read/write var ints instead of longs for the object lengths

Author: ianoc

chill-hadoop/src/main/java/com/twitter/chill/hadoop/KryoDeserializer.java

@@ -46,7 +46,7 @@ public void open(InputStream in) throws IOException {
 
     public Object deserialize(Object o) throws IOException {
         // TODO, we could share these buffers if we see that alloc is bottlenecking
-        byte[] bytes = new byte[(int) Varint.readUnsignedVarLong(inputStream)];
+        byte[] bytes = new byte[Varint.readUnsignedVarInt(inputStream)];
         inputStream.readFully( bytes );
         return kryoPool.fromBytes(bytes, klass);
     }

chill-hadoop/src/main/java/com/twitter/chill/hadoop/KryoSerializer.java

@@ -47,7 +47,7 @@ public void serialize(Object o) throws IOException {
         try {
           st.writeObject(o);
           // Copy from buffer to output stream.
-          Varint.writeUnsignedVarLong(st.numOfWrittenBytes(), outputStream);
+          Varint.writeUnsignedVarInt(st.numOfWrittenBytes(), outputStream);
           st.writeOutputTo(outputStream);
         }
         finally {