2020-12-02

Attendees

Announcements

Anti-trust Policy Notice and Hyperledger Code of ConductCoC Hyperledger

Notes

Dr. Michael Kuperberg, Chief Blockchain Architect at DB Systel (Deutsche Bahn), will be our guest speaker on Wed Nov 18th at 9 AM PST Architecture WG meeting.

Deletion is interesting, especially for GDPR and other privacy regulatory compliance. Network partitioning tolerance is a core requirement for correctness of DLTs.

Please see the abstract and attached papers on the two topics from Michael (November 18th)

Please forward to anyone else in the community who may be interested.

Partitioning: Part 1

Abstract:

Both permissioned and unpermissioned blockchains are designed to tolerate and to overcome the failure of individual nodes, which need to update themselves once they reconnect to the blockchain network. At the same time, it is important to avoid accidental network partitioning, since partitioning can lead to inconsistent “multiple truths” and violate the shared consensus about the global state, which must be maintained across all active and re-emerging nodes. Given the differences in design and implementation across ledgers and blockchains, a systematic analytic approach must be established before partitioning prevention in specific products is studied. Therefore, we perform a foundational analysis of enterprise-grade consensus protocols, including design recommendations for partitioning avoidance for Proof-of-Authority in Hyperledger Fabric.

PDF: I attached the underlying paper ("Towards An Analysis of Network Partitioning Prevention for Distributed Ledgers and Blockchains")
the publisher's URL is https://ieeexplore.ieee.org/document/9126030/

Slides:

Blockchain Partitioning

Q&A: discussion

Daniel Abadi's work on the PACELC theorem may offer a useful comparison with partitions and consistency.

http://dbmsmusings.blogspot.com/2018/09/newsql-database-systems-are-failing-to.html