Feed: O'Reilly Media, Inc. Upcoming Titles. Author: O'Reilly Media, Inc.. Launched in early 2018, the Lightning Network (LN) is rapidly growing in users and capacity. This second-layer payment protocol works on top of Bitcoin and other cryptocurrencies to provide near-instantaneous transactions between two parties. With this practical guide, authors Andreas M. Antonopoulos, Olaoluwa Osuntokun, and Rene Pickhardt explain how this advancement will enable the next level of scale for Bitcoin, increasing speed and privacy while reducing fees.Ideal for developers, systems architects, investors, and entrepreneurs looking to gain a better understanding of LN, this book demonstrates why experts consider LN a ... Read More

Feed: AWS Big Data Blog. Amazon EMR on Amazon EKS provides a deployment option for Amazon EMR that allows you to run analytics workloads on Amazon Elastic Kubernetes Service (Amazon EKS). This is an attractive option because it allows you to run applications on a common pool of resources without having to provision infrastructure. In addition, you can use Amazon EMR Studio to build analytics code running on Amazon EKS clusters. EMR Studio is a web-based, integrated development environment (IDE) using fully managed Jupyter notebooks that can be attached to any EMR cluster, including EMR on EKS. It uses AWS ... Read More

Feed: Recent Announcements. With AWS IoT Device Defender, customers can now verify an alarm based on their investigation of detected behavior anomalies. They can verify an alarm as True positive, Benign positive, False positive, or Unknown and provide a description of their verification. Users, such as a security or operational team, can use this to manage alarms and improve response time. Customers can view or filter AWS IoT Device Defender Detect alarms using one of the four verification states. They can mark alarm verification states so that other members of their team can take follow-up actions (for example, performing mitigation ... Read More

Feed: Recent Announcements. AWS Storage Gateway now makes it easier and faster for you to search, view, and manage your virtual tapes stored in AWS using Tape Gateway. From the Tapes page in the Storage Gateway management console, you can now quickly search for tapes using common filters such as tape barcode and status. You simply select the desired filter from the drop-down menu and quickly narrow down your search to the relevant set of tapes, saving you time and management overhead. For example, to delete archived tapes exceeding your defined retention period, you can use the Archived filter, select the desired ... Read More

Feed: Recent Announcements. Amazon SageMaker Studio is the first fully integrated development environment (IDE) for machine learning (ML). SageMaker Studio provides a single, web-based visual interface where you can perform all ML development steps required to prepare data, as well as build, train, and deploy models. With a single click, data scientists and ML developers can quickly spin up SageMaker Studio Notebooks for exploring datasets and building models. Now you can use lifecycle configurations to automate customizations for your Studio development environment. Lifecycle configurations are shell scripts triggered by SageMaker Studio lifecycle events, for example, starting a new Studio notebook ... Read More

Feed: Planet MySQL; Author: Mikael Ronström; RonDB has now grown up to the same level of memory management as you find in expensive commercial DBMSs like Oracle, IBM DB2 and Microsoft SQL Server.Today I made the last development steps in this large project. This project started with a prototype effort by Jonas Oreland already in 2013 after being discussed for a long time before that. After he left for Google the project was taken over by Mauritz Sundell that implemented the first steps for operational records in the transaction manager.Last year I added the rest of the operational records in ... Read More

Feed: Recent Announcements. Amazon ElastiCache for Redis auto scaling is now generally available in all public AWS regions excluding AWS GovCloud (US) and AWS China (Beijing and Ningxia) Regions. Amazon ElastiCache for Redis auto scaling enables you to automatically adjust capacity to maintain steady, predictable performance at lower costs. It uses AWS Application Auto Scaling to manage scaling and Amazon CloudWatch metrics to determine when it is time to scale up or down. ElastiCache for Redis supports target tracking and scheduled auto scaling policies. With target tracking, you define a target metric and ElastiCache for Redis adjusts resource capacity in ... Read More

Feed: AWS Partner Network (APN) Blog. Author: Vanitha Ramaswami. By Vanitha Ramaswami and David Walters, Partner Solutions Architects, IoT – AWSBy Tom Inoue, Business Development Engineer – Murata ElectronicsBy Gonzague Fraval, Product Marketing Connectivity Modules – Murata ElectronicsBy Matthew Salmanpour, Staff Product Marketing Engineer – Infineon/Cypress Building Internet of Things (IoT) device hardware is complex, and development often exceeds 18 months from concept to production. Hardware developers are looking for guidance on design considerations and development trade-offs to decrease hardware design time and increase the value their connected devices can bring. Every choice a hardware developer makes impacts the cost ... Read More

Feed: Recent Announcements. AWS customers can now use managed Amazon Machine Images (AMIs) with Microsoft Windows Server 2022. With these AMIs, customers can launch Windows Server 2022 and take full advantage of the latest Windows features on AWS. Amazon EC2 makes launching and running Windows Server 2022 easy whether it is for testing and enabling new features in the software, or for scalable adoption of the latest capabilities on compute instances globally. Amazon creates and manages Microsoft Windows Server 2022 AMIs providing a reliable and quick way to launch Windows Server 2022 on EC2 instances. By running Windows Server 2022 ... Read More

Feed: R-bloggers. Author: finnstats. [This article was first published on Methods – finnstats, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. Subscript out of bounds, Subscript out of limits in R: How to Fix? The following is an example of a typical R error: Error in x[6, ] : subscript out of bounds When you try to access a column or row in a matrix that doesn’t exist, you’ll get this error. Subscript ... Read More