PPT-CS5412: Transactions (I)

Ken Birman CS5412 Spring 2015 Cloud Computing Birman 1 Lecture XVI Transactions A widely used reliability technology despite the BASE methodology we use in the first tier Goal for this week indepth examination of topic. Donald E. Porter, Owen S. Hofmann, . Christopher J. . Rossbach. , Alexander Benn, . and Emmett . Witchel. The University of Texas at Austin. OS APIs don’t handle concurrency. 2. OS is weak link in concurrent programming model. Submitting Transactions to Caplink. For Standalone users, best practice is to enter the transactions in to Caplink at point of sale, exactly the same way a credit card would be processed at point of sale. Batch processing at the end of the month is not recommended.. Larry E. Salci. Principal. , SalciConsult. Transportation Consultants. June 4, 2014. Lease Definitions. True Lease . – A specific type of multi-year lease which does not pass ownership rights of the asset to the lessee. A true lease is an arrangement where the lessor (the person granting the lease) bears both the risks and rewards of ownership of the property.. Jan Eliasen, BizTalk MVP. Twitter: @. jan_eliasen. Blog: http://blog.eliasen.dk. Agenda. Jan Eliasen – who am I?. Transactions and compensation. Examples/Demos. Questions. Jan Eliasen – who am I?. . ACID, . C. oncurrency control (2PL, . OCC). Intro to distributed . txns. COS 418: . Advanced Computer Systems. Lecture 5. Michael Freedman. Definition:. A unit of work:. May consist of . multiple. Database System Implementation CSE 507. Some slides adapted from . Navathe. et. Al. and . Silberchatz. et. Al. . Transaction Concept. A . transaction. . is a . unit . of program execution that accesses and possibly updates various data items.. (IEEE ICDM 2008). Presenter:. Yabo, Xu. Authors: . Yabo Xu, Benjam C.M. Fung,. Ke Wang, Ada. W.C. Fu, Jian Pei. . Affiliation. Simon Fraser University, Canada. Concordia University, Canada. Chinese University of Hong Kong . 1. CS5412 Spring 2015 (Cloud Computing: Birman). Lecture II. Today: Let’s look at some real apps. CS5412 Spring 2015 (Cloud Computing: Birman). 2. We’ll focus on two very standard examples. Netflix movie player. 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.. Ken Birman. Spring, 2022. http://www.cs.cornell.edu/courses/cs5412/2022sp. 1. Can we build consistent, highly available . -services?. When building . -services everything needs to be sharded for scaling. . 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.. Ken Birman. 1. Lecture XXIII. CS5412 Sping 2014. Are Clouds Inherently Dangerous?. 2. Gene . Spafford. , famous for warning that the emperor has no . clothes. . fears. that moving critical information. aN. Overlay. Ken Birman. 1. CS5412 Spring 2016 (Cloud Computing: Birman). Lecture . IX. Recall the overlay network idea . CS5412 Spring 2016 (Cloud Computing: Birman). 2. For example, Dynamo, Chord, . Ken Birman. 1. Lecture XXII. Cornell CS5412 Cloud Computing (Spring 2015). Cloud Hype. 2. The cloud is cheaper!. The cloud business model is growing at an unparalleled pace without any limit in sight.