Hi I have got a very similar problem when trying to configure HDFS. The solution was configuring a smaller block size. I wanted to install HDFS for testing purposes only, so decided to have ~300 MB of storage space on each machine. The block size was set up to 128 MB ( I used cloudera configuration tool). After changing the block size to 1 MB ( could be bigger but it is not a production environment ), everything started to work fine !
regards Piotr Praczyk
