Bhaskar

1
Bhaskars research in SAHARA (1/2)

• What is the problem I will solve?
• Choice of service instances for horizontal
  service composition
• Given a particular service placement
• Given a particular overlay network
• Dynamic adaptation for load balancing and
  fault-tolerance in a composed session
• Past solutions
• WA choice based on performance -- for single hop
  (web servers) only, not multi-hop composition
• Dynamic adaptation during session not addressed
  (not an issue)

2
Bhaskars research in SAHARA (2/2)

• Issues I will solve
• Algorithms for server choice, dynamic performance
  adaptation, fault-tolerance
• Scaling w.r.t. overlay nodes and client
  sessions
• Stability during dynamic performance changes
• Quick recovery from failures
• Broad methodology Mill. WANE WA measurements
• Im NOT doing
• Service placement (Yan)
• Security/trust management in composition
  (Takashi)
• Access n/w issues and/or mobility (Sridhar?)
• Details of underlying n/w topology
  (Sharad/Lakshmi)