In C#. Master-Worker. From scratch. No Hadoop. Done. Depend on DFS.
Share/Transfer photos and text between any device and the APP host.
Only 7MB! Dollar-store machine metric agent! All metrics stored at memory.
A consensus algorithm implementation. Decoupled elections and log replications.
A definition language for buffer parsing. No code gen. Restrict business code to outside of the codec.
Done: election, log replication.