To build: (1) Modify THRIFT_BASE and CASSANDRA in the Makefile to reflect where you have those things installed. (2) Type "make" To run: (1) Make sure Cassandra is running locally. (2) Set LD_LIBRARY_PATH to include libcassfs.so and any other relevant libraries (e.g. thrift). (3) Use the CLI to build an empty filesystem (4) Run the FUSE daemon to mount the filesystem. For example: # In your Cassandra directory... bin/cassandra -f # In this directory... export LD_LIBRARY_PATH=/opt/thrift/lib:. echo "mkfs foo" | ./cassfs_cli mkdir -p /tmp/myfs ./cassfs -f -s -o name=foo /tmp/myfs Notes: The thrift_gen directory contains files generated by Thrift from the Cassandra source. You should probably re-generate those files with your version of both.