Concurrency control | Transaction processing
In concurrency control of databases, transaction processing (transaction management), and other transactional distributed applications, global serializability (or modular serializability) is a property of a global schedule of transactions. A global schedule is the unified schedule of all the individual database (and other ) schedules in a multidatabase environment (e.g., federated database). Complying with global serializability means that the global schedule is serializable, has the serializability property, while each component database (module) has a serializable schedule as well. In other words, a collection of serializable components provides overall system serializability, which is usually incorrect. A need in correctness across databases in multidatabase systems makes global serializability a major goal for global concurrency control (or modular concurrency control). With the proliferation of the Internet, Cloud computing, Grid computing, and small, portable, powerful computing devices (e.g., smartphones), as well as increase in systems management sophistication, the need for atomic distributed transactions and thus effective global serializability techniques, to ensure correctness in and among distributed transactional applications, seems to increase. In a federated database system or any other more loosely defined multidatabase system, which are typically distributed in a communication network, transactions span multiple (and possibly distributed) databases. Enforcing global serializability in such system, where different databases may use different types of concurrency control, is problematic. Even if every local schedule of a single database is serializable, the global schedule of a whole system is not necessarily serializable. The massive communication exchanges of conflict information needed between databases to reach conflict serializability globally would lead to unacceptable performance, primarily due to computer and communication latency. Achieving global serializability effectively over different types of concurrency control has been open for several years. Commitment ordering (or Commit ordering; CO), a serializability technique publicly introduced in 1991 by from Digital Equipment Corporation (DEC), provides an effective general solution for global (conflict) serializability across any collection of database systems and other , with possibly different concurrency control mechanisms. CO does not need the distribution of conflict information, but rather utilizes the already needed (unmodified) protocol messages without any further communication between databases. It also allows optimistic (non-blocking) implementations. CO generalizes strong strict two phase locking (SS2PL), which in conjunction with the two-phase commit (2PC) protocol is the de facto standard for achieving global serializability across (SS2PL based) database systems. As a result, CO compliant database systems (with any, different concurrency control types) can transparently join existing SS2PL based solutions for global serializability. The same applies also to all other multiple (transactional) object systems that use atomic transactions and need global serializability for correctness (see examples above; nowadays such need is not smaller than with database systems, the origin of atomic transactions). (Wikipedia).
Characterizations of Diagonalizability In this video, I define the notion of diagonalizability and show what it has to do with eigenvectors. Check out my Diagonalization playlist: https://www.youtube.com/playlist?list=PLJb1qAQIrmmCSovHY6cXzPMNSuWOwd9wB Subscribe to my channel: https://
From playlist Diagonalization
Worldwide Calculus: Multivariable Functions
Lecture on 'Multivariable Functions' from 'Worldwide Multivariable Calculus'. For more lecture videos and $10 digital textbooks, visit www.centerofmath.org.
From playlist Worldwide Multivariable Calculus
matrix choose a matrix. Calculating the number of matrix combinations of a matrix, using techniques from linear algebra like diagonalization, eigenvalues, eigenvectors. Special appearance by simultaneous diagonalizability and commuting matrices. In the end, I mention the general case using
From playlist Eigenvalues
Dualities in Local Algebra (Lecture-1) by Srikanth Iyengar
PROGRAM DUALITIES IN TOPOLOGY AND ALGEBRA (ONLINE) ORGANIZERS: Samik Basu (ISI Kolkata, India), Anita Naolekar (ISI Bangalore, India) and Rekha Santhanam (IIT Mumbai, India) DATE & TIME: 01 February 2021 to 13 February 2021 VENUE: Online Duality phenomena are ubiquitous in mathematics
From playlist Dualities in Topology and Algebra (Online)
Introduction to Homotopy Theory- PART 1: UNIVERSAL CONSTRUCTIONS
The goal of this series is to develop homotopy theory from a categorical perspective, alongside the theory of model categories. We do this with the hope of eventually developing stable homotopy theory, a personal goal a passion of mine. I'm going to follow nLab's notes, but I hope to add t
From playlist Introduction to Homotopy Theory
Math 060 Fall 2017 112217C Diagonalization Part 2
Review: the matrix representation of a matrix with respect to an eigenvector basis is a diagonal matrix of eigenvalues. Definition: diagonalizable matrix. Alternate proof of the fact that a matrix is diagonalizable iff there exists an eigenvector basis. Exercise: diagonalize a matrix.
From playlist Course 4: Linear Algebra (Fall 2017)
JUC U.S. East 2015 - Providing a First Class User Experience with Jenkins Plugins
By: Peter Vilim, Delphix Production Jenkins installations often rely upon a large number of custom scripts and third-party plugins. While this eases initial deployment of Jenkins and allows for greater customization, it can often lead to a worse user experience and hard to debug problems
From playlist JUC U.S East 2015
Rational Homotopy Groups (Lecture 3) By Somnath Basu
PROGRAM DUALITIES IN TOPOLOGY AND ALGEBRA (ONLINE) ORGANIZERS: Samik Basu (ISI Kolkata, India), Anita Naolekar (ISI Bangalore, India) and Rekha Santhanam (IIT Mumbai, India) DATE & TIME: 01 February 2021 to 13 February 2021 VENUE: Online Duality phenomena are ubiquitous in mathematics
From playlist Dualities in Topology and Algebra (Online)
Explorations in reproducible analysis with Nodebook- Kevin Zielnicki (Stitch Fix)
Tools like the Jupyter Notebook provide an excellent platform for quickly iterating on an analysis by interleaving code, text, and output. However, the flexibility of the notebook environment can also lend itself to code that, over the course of an analysis, becomes increasingly unwieldy a
From playlist JupyterCon in New York 2018
Object Serialization in Java | Serialization Interface | Java Tutorial | Edureka
**Java, J2EE & SOA Certification Training - https://www.edureka.co/java-j2ee-training-course ** This Edureka video on Serialization in Java will provide you with detailed knowledge about how the Serialization process in Java takes place along with the practical examples for a better unders
From playlist Java Tutorial For Beginners | Edureka
Unity Tutorial | How To Create Zombie Mobile VR Game In Unity3D | Session 05 | #unity3d | #gamedev
Don’t forget to subscribe! In this Unity tutorial, you will learn to create a zombie mobile VR game in Unity3D. This project is for any beginner, intermediate or expert developer in ( VR )Virtual Reality. The project will cover everything that is required to build and test a complete Zom
From playlist Create Zombie Mobile VR Game In Unity3D
PGConf NYC 2021 - Understanding and Reducing Application Contention by Simon Riggs
Understanding and Reducing Application Contention by Simon Riggs Database Lock Waits, Deadlocks and Serializable ERRORs lurk in wait for the unwary application developer. This talk explains what they are, how to spot they are causing problems and how to reduce them. With both simple and
From playlist PGConf NYC 2021
PROG2006: Rust Quick Tip - Serde Serialization
A quick tip video about how to use Serde for serialization and deserialization of data in Rust. Learn using a practical quick example that explains the basics of Serde. Part of PROG2006.
From playlist PROG2006 - Programming
ZuriHac 2015 - Distributed Programming in Haskell
Google Tech Talk May 30, 2015 ("show more" for more information) Presented by Mathieu Boespflug https://wiki.haskell.org/ZuriHac2015#Mathieu_Boespflug ABSTRACT Shifting from building compilers and desktop applications to online services and mobile apps means that Haskell programming is
From playlist ZuriHac 2015
Clojure Conj 2012 - Functional Client-side ClojureScript UI Programming With Webfui
Functional Client-side ClojureScript UI Programming With Webfui by: Conrad Barski What if the inventor of the web browser had been a Clojure programmer? Probably, client-side web programming would work differently than it does now... but in what ways? For one thing, we might want the DOM
From playlist Clojure Conf 2012
Lec 18 | MIT 6.033 Computer System Engineering, Spring 2005
Isolation View the complete course at: http://ocw.mit.edu/6-033S05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 6.033 Computer System Engineering, Spring 2005
Lecture 12: Distributed Transactions
Lecture 12: Distributed Transactions MIT 6.824: Distributed Systems (Spring 2020) https://pdos.csail.mit.edu/6.824/
From playlist MIT 6.824 Distributed Systems (Spring 2020)