wrote data chunk class
wrote tests for Chunk
NameNode now starts up and listens for messages
added msg and constants
DataNode now starts up and greets NameNode
NameNode now tracking available nodes
now working with chunkname objects
implemented more DataNode fns
datanode storing data in memory and responding to requests
NameNode now writes its IP to file; DataNodes retrieve it to connect
drafted client
client now sends greeting to NN
semi-dummy version of data storage implemented
can apparently now write files to DFS
trying read; checking on metadata
able to retrieve contents of file chunk from datanode via client
Can now bootstrap DFS from config file
wrote Mapper and Reducer interfaces
fixed makefile
renamed old tests and fixed makefile