Scalable Group Communication System for Scalable Trust

1
Scalable Group Communication System for Scalable
Trust

• Krzysztof Ostrowski, Ken Birman
• Cornell University
• krzys,ken_at_cs.cornell.edu

http//www.cs.cornell.edu/krzys/stc2006/slides/
2
(No Transcript)
3
Massive Use of Pub-Sub Topics
4
The Role of QSM
5
The Three Tasks to Accomplish
6
Scalable Dissemination
7
Regions of Overlap
region set of nodes with similar membership
8
Mapping Groups to Regions (I)
9
Mapping Groups to Regions (II)
10
Scalable Recovery
11
Hierarchy of Protocols (I)
12
Hierarchy of Protocols (II)
13
(No Transcript)
14
(No Transcript)
15
(No Transcript)
16
(No Transcript)
17
Conclusions

• Casual use of pub-sub topics is feasible
• but requires a new approach
• gt scalable protocols
• gt hierarchical
• gt no free lunch exploit regularities
• gt carefully designed system architecture
• QSM, a free, scalable, reliable protocol
• www.cs.cornell.edu/projects/quicksilver/QSM/