PPT-CS5412 / Lecture 7 Replication and Consistency (Part I: Theory and Protocols)

Ken Birman Spring 2022 httpwwwcscornelleducoursescs54122022sp 1 Can we build consistent highly available services When building services everything needs to be sharded for scaling . Chapter 7. Part II . Replica Management. &. Consistency Protocols. Replica Management. Replica-Server Placement. Replica Placement:. Where. is a replica placed?. When. is a replica created?. Who. Describing Inverse Problems. Syllabus. Lecture 01 Describing Inverse Problems. Lecture 02 Probability and Measurement Error, Part 1. Lecture 03 Probability and Measurement Error, Part 2 . Lecture 04 The L. Topics. Why Replication?. System Model. Consistency Models . One approach to consistency management and dealing with failures. Readings. Van Steen and Tanenbaum: 6.1, 6.2 and 6.3, 6.4. Coulouris: 11,14. CS 15-440. Consistency and Replication – Part IV. Lecture 13, Oct 23, 2013. Mohammad . Hammoud. Today…. Last Session:. Consistency and . Replication- Past III. Client-centric consistency models and replica management. Chapter 7. Most of the lecture notes are based on slides by Prof. Jalal Y. Kawash at Univ. of Calgary. Some notes are based on slides by Prof. Kenneth Chiu at SUNY Binghamton. I have modified them and added new slides. COS 518: . Advanced Computer Systems. Lecture . 3. Michael Freedman. Let’s say A and B send an op. . All readers see A . →. B ?. All . readers see . B. . → A ? . Some see . A . → B . and others . Distributed Systems. Lecture 14. Michael Freedman. 2. Linearizability. Eventual. Consistency models. Sequential. Causal. Lamport. clocks: C(a) < C(z) Conclusion: . None. Vector clocks: V(a) < V(z) Conclusion: . Ken Birman. Spring, 2018. http://www.cs.cornell.edu/courses/cs5412/2018sp. 1. A 5-lecture Roadmap!. http://www.cs.cornell.edu/courses/cs5412/2018sp. 2. Lecture 1: Transactions. Lecture 2: DHTs. Lecture 3:. By . Sidoine. . Lafleur. . Manono. . Fotso. . epse. . Kamgang. On . September 30, 2015. Advanced Operating Systems class . : . CSc. 8320. Instructor: . Prof. Yanqing Zhang . I- Introduction. Ken Birman. 1. CS5412 Spring 2012 (Cloud Computing: Birman). Lecture . VII. How are cloud structured?. CS5412 Spring 2012 (Cloud Computing: Birman). 2. Clients talk to clouds using web browsers or the web services standards. Distributed Systems. Lecture . 16. Michael Freedman. 2. Linearizability. Eventual. Consistency models. Sequential. Causal. Lamport. clocks: C(a) < C(z) Conclusion: . None. Vector clocks: V(a) < V(z) Conclusion: . Ceph. : A Scalable High-Performance Distributed File System. Ken Birman. Spring, . 2020. http://www.cs.cornell.edu/courses/cs5412/2020sp. 1. HDFS limitations. Although many applications are designed to use the normal “POSIX” file system API (operations like file create/open, read/write, close, rename/replace, delete, and snapshot), some modern applications find POSIX inefficient.. Cloud. Ken Birman. CS5412 . Spring 2021. http://www.cs.cornell.edu/courses/cs5412/2021sp. 1. Beyond the datacenter. Although we saw a picture of Facebook’s global blob service, we have talked primarily about technologies used inside a single datacenter.. Making The Cloud Friendlier for Object-Oriented Computing. Ken Birman. Spring. , 2022. http://www.cs.cornell.edu/courses/cs5412/2022sp. 1. Today’s main topic. The cloud was built mostly from Linux systems, yet Linux was created to support interactive computing applications in offices and hospitals, databases (big files, but record-oriented), text editing..