040000 tree 2428b4e7f1ec49cd93d182842cc1f13c696bd5e2	hadoopfs
040000 tree 1a6c444002305eb5c77e73a14262b399d3670d98	hbase
040000 tree c8729fa12cfd4f6387d538b7ca832e5aae31223f	kafka
040000 tree 681e8250e21d85e12451815f32caf2f601f13630	monoid
040000 tree fc874ba2b56f1cf1c41e12e5b8b400d192843eda	serializer