Microsoft Technology Licensing, LLC

Junyan Guo

Dharma Kiritkumar Shukla

Karthik Raman

Momin Mahmoud Al-Ghosien

Ji Huang

Shireesh Kumar Thota

Pankaj Sharma

Arsalan Ahmad

Atul Katiyar

Ankur Savailal Shah

Sujit Vattathil Kuruvilla

Shreshth Singhal

Hemant Kumar

Ovidiu Constantin Platon

Rajeev Sudhakar Bhopi

Padma Priya Aradhyula Bhavani

Venkata Sivaramakrishna Ramadugu

Distributed transactions are performed over a collection of servers operating as replicas of a data set, where a successful transaction involves meeting a quorum count of replicas that locally commit the transaction. However, performance constraints of data sets and consuming applications may vary (e.g., sensitivity to latency, scalability, and/or consistency), and the performance characteristics of the server set may be partly determined by the transactional commitment and quorum selection. The distributed transaction may be applied by designating the replicas as a set of followers and a leader that initiates the transaction and receives acknowledgments of local commits by each follower. On condition of the acknowledgments meeting a quorum count for the data set according to the performance characteristics of the application, the leader locally commits the transaction and delivers a result. The transaction may also be applied over collections of replica sets using a second-level quorum to achieve nested consensus.

Resource-governed protocol and runtime for distributed databases with consistency models

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Junyan Guo