100644 blob e3e3fa4f8ef53247d11f81a171970dcd87cb04dd	HdfsInputDescriptor.java
100644 blob 7b7e118371a9a6f512faf51b744791fbc1f3e24f	HdfsOutputDescriptor.java
100644 blob 49a918657fa078735e3c632f1e7dc22461fdc001	HdfsSystemDescriptor.java