liyinhgqw / gfs

Google File System in Python. This uses TCP to communicate between master, chunkserver, and client. Based off of the eponymous paper and mostly true to it. It doesn't do any of the slow start or nearest rack tweaks mentioned. the metadata is written atomically on updates, but everything is written every time. also no checksumming is done of the metadata so it is certainly not fault tolerant in that sense. but does provide a basic block oriented server. See gfs.py for unit tests.