This page documents the goals and results for a series of milestones for the first implementation of RAMCloud. Each milestone last 2 weeks, ending on a Monday.

Milestone 1: ends February 15, 2010

• Aravind:
  • RCBuf implementation (including docs and tests) (est: 3 days) (actual: done in 4 days, ~10 hours)
  • Use RCBufs in current RPC mechanism (est: 1 day) (actual: done in 2 half-days)
  • New RPC API implemented on TCP (est: 4 days) (actual: not done)
  • Extras: protocol buffer tests
• Diego:
  • Mini-transactions returning Booleans (est: 3 of "7") (actual: not done (90%?) spent "5")
  • Mini-transactions returning results/error info (est: 4 of "7") (actual: not done (90%?), spent "2")
  • Extras: transaction discussions, functional tests
• Ryan:
  • Finish GetSegMetaData (est: 2 days) (actual: done in 16 actual hours)
  • Support multiple segments in backup (est: 3 days) (actual: not done)
  • Support multiple backups/master (est: 3 days) (actual: not done)
  • Extras: cleanup (4 hours)
• Steve:
  • New tombstone code (est: 1 day) (actual: done in 4 hours)
  • Log/tombstone docs (est: 1 day) (actual: done in 2 hours)
  • Log/tombstone tests (est: 3 days) (actual: not done; halfway?)
  • Segment docs (est: 1 day) (actual: done in 1 hour)
  • Segment tests (est: 1 day) (actual: done in 2-3 hours)

Milestone 2: ends March 1, 2010

• Aravind:
  • Analyze protocol buffer performance (est: 0.5 day)
  • Implement new RPC API on TCP (est: 4 days)
  • Code review of RCBUF (est: 0.5 day)
  • Quick and dirty user-level implementation of scatter-gather (est: 1 day)
• Diego (modified 2010-02-18 with John's approval, and somewhat changed my mind 2010-02-19):
  • RAM-36: Finish mini-transactions (est: 1 day)
  • RAM-33: Least usable version of file system (est: 5 days)
  • RAM-26: Table enumeration (est: 2 days) or maybe instead RAM-38: C/C++ extension for Python bindings (est: 2 days)
• Ryan:
  • Propagate GetSegMetaData through server (est: 0.5 day)
  • Boilerplate recovery routine (est: 0.5 day)
  • Creating shadow objects in log (est: 2 days)
• Steve:
  • Log/tombstone tests (est: 1 day)
  • Design for multi-threading (est: 2 days)