Spring Discussion Wrapup

Major Questions

• Latency? And apps that drive low latency?

Points of agreement

Apps

• Facebook++, High volume txns (visa, fraud), Mapreduce, virtual worlds

Goals

• 1M req/sec/server

• Backups on nonvolatile storage

• Assume power outages are solved

• Commodity hardware

• Cost effective (per request, per byte)

Data Model

• Blobs, tables indices

• Opaque data, system understands indices

• Applications, which are collections of tables

Client-Server Functions

• No compute on storage servers

• Sorting may be a query function thus servers may play a role

Security

• Protect separate applications

• Guarantee privacy & integrity of packets

• Avoid per byte crypto

• Charge for DoS attacks