Tag: transactions

Feed: Cambridge Intelligence. Author: Michael Barlow. Part 1: visualizing blocks of transactionsWhether it’s Bitcoin’s value fluctuations, million-dollar hacks, the launch of new currencies or stories of regulators grappling with a brave new world, barely a week passes without cryptocurrencies hitting the headlines.While governments and banks still dislike the concept of digital currencies, there’s a huge business opportunity. Compared to traditional fiat currencies, decentralized cryptocurrencies offer a secure, low-cost way to transfer funds anywhere in the world. They’re widely regarded as the future of finance, so it’s no wonder people want to learn more.This blog is the first of two posts ... Read More

Feed: Planet MySQL; Author: Andrew Grimo; In MySQL 8.0.17 there have been a lot of updates to the MySQL set of offerings. We’ve introduced Cloning into InnoDB Cluster 8.0.17, advances with the MySQL-Router in 8.0.17 and MySQL continues to expand its collection of automation managed features. When Group Replication was first introduced in MySQL 5.7.17, there was considerably less to manage right away compared to a “3-member Async replication setup w/auto-failover“.  Auto-failover tooling requires a lot of thought, determination and coding.  With the advent of Group Replication, MySQL’s users can put aside all that work and let MySQL Server’s Group ... Read More

Feed: Oracle Blogs | Oracle Blogs. My wife and I are moving into a new house, and my wife has her heart set on a new refrigerator. It’s a modern appliance, but it’s styled like a 1950s refrigerator: rounded corners, levered handles, single door or double doors, and offered in a selection of solid retro colors, such as fire-engine red, lime green, or turquoise. It’s an example of a concept that the manufacturing industry has been wrestling with for many years: mass customization. And it’s a far cry from the days when you could buy a Ford Model-T in any ... Read More

Feed: Planet MySQL; Author: Continuent; Overview The Skinny In this blog post, we explore the correct way to implement bi-directional Tungsten Replication between AWS Aurora and Tungsten Clustering for MySQL databases. Background The Story When we are approached by a prospect interested in using our solutions, we are proud of our pre-sales process by which that we engage at a very deep technical level to ensure the we provide the best possible solution to meet with the prospect’s requirements. This involves an in-depth hands-on POC, in addition to the significant time and effort we spend building and testing the solution ... Read More

Feed: Blog – Hazelcast. Author: Dan Ortega. The Open Banking initiative, also referred to as PSD2 (Payment Services Directive), is a textbook example of streaming technology applied to modern banking requirements. In this model, banks (primarily in Europe) are required to make their back-end systems for customer accounts and payment services available to other members of the financial payment ecosystem. While this is a consumer-friendly initiative, from a bank’s perspective the broader transactional ecosystem has effectively been force-integrated into their operational systems.  This essentially means a significant increase in sources of streaming data from a more diverse range of service ... Read More

Feed: AWS Government, Education, & Nonprofits Blog. Author: publicsector. For decades, public sector organizations have relied on large, legacy, mainframe solutions to reliably process high volumes of secure transactions. But now, Amazon Web Services (AWS) can help modernize your mainframe environment while helping reduce your budget and improve your analytics capabilities.Legacy systems in the public sector Mainframes have been around since the 1950s and remained a prominent element of many data centers in state and local government, defense organizations, and federal agencies due to performance, durability, and security. Mainframe solutions are essentially a fully integrated data center with hardware, software, ... Read More

Feed: Planet MySQL; Author: Mark Callaghan; This is a review of Adapting TPC-C Benchmark to Measure Performance of Multi-Document Transactions in MongoDB which was published in VLDB 2019. I appreciate that MongoDB and Asya Kamsky took the time to get this published. That can be a weekend and nights project when in industry. I also appreciate that this not a benchmarketing effort. The purpose wasn't to overstate performance. The purpose was to show how to get good performance on a TPC-C like workload with MongoDB and realistic hardware and configurations. I hope for a similar effort on MongoDB with Linkbench.My ... Read More

Feed: AWS Partner Network (APN) Blog. Author: AWS Admin. By Anastasia Zamyshlyaeva, Chief Architect, Co-Founder at ReltioImagine you are on an international business trip and spot a popular fast-food restaurant that has a global presence. Striding inside in a hurry, you swipe your loyalty card and are ready to order. The sandwich artist cheerfully asks if you want to go for your favorite—toasted turkey and cheddar sandwich on wheat bread with extra pickles—or if you want to try a tuna sandwich this time. With the access to your profile in the restaurant’s point-of-sale (POS) system, the sandwich artist is well ... Read More

Feed: MariaDB Knowledge Base Article Feed. Author: . When a transaction updates a row in an InnoDB table, InnoDB's MVCC implementation keeps old versions of the row in the InnoDB undo log. The old versions are kept at least until all transactions older than the transaction that updated the row are no longer open. At that point, the old versions can be deleted. InnoDB has purge process that is used to delete these old versions. Optimizing Purge Performance Configuring the Purge Threads The number of purge threads can be set by configuring the innodb_purge_threads system variable. This system variable can ... Read More

Feed: Recent Announcements. Amazon QLDB is a new class of database that eliminates the need to engage in the complex development effort of building your own ledger-like applications (e.g., tracing the movement of an item through a supply chain network, tracking the history of credits and debits in banking transactions, or validating incidents filed against an insurance claim). With QLDB, your data’s change history is immutable – it cannot be altered or deleted – and using cryptography, you can easily verify that there have been no unintended modifications to your application’s data. QLDB uses an immutable transaction log, known as ... Read More