As part of InfoQ's ongoing Community Driven Research project, we want to find out how developers are using Ruby on Rails in practice. In this first step, we want to know what you use so that we can collect suggestions for the voting.
The Common ReusAble SHell (CRaSH) is an interactive shell (with history support and autocompletion) that attaches to a running JVM and can execute several commands for retrieving JVM statistics or changing JVM internals on the fly. It can be used for remote monitoring and administration of existing Java applications and it is fully extensible via custom Groovy scripts.
In December the GEOCens (Geospatial Cyberinfrastructure for Environmental Sensing) is finishing its pilot phase, as the not-for-profit organization Cybera has recently published at GISUser.com. The software architecture is supposed to improve researcher access to international environmental data drawn from more than 60,000 sensors and 2,800 web map servers.
Microsoft has released the Parallel Visualization Pack for Visual Studio 11 Developer Preview. Built to extend the functionality of the new Parallel Watch Window, the pack includes four visual tools to aid in debugging multithreaded applications.
Application Performance Measurement (APM) vendor AppDynamics has released AppDynamics Lite version 2.0, bringing new features from their commercial product into the free version.
New Relic is bringing its well-regarded web application performance service to Java applications running on Heroku's PaaS. The add-on is offered in two versions, a free standard version, and a professional subscription service currently costing $0.06 per dyno hour. New Relic have also announced Python support for their stand-alone product.
Sencha has launched Sencha Touch Charts, a beta version of a set of rich, interactive charting components built with HTML5 and optimized for mobile devices. Part of the Sencha Touch offering, this library enables developers to build interactive radar, bar, line, stacked, and pie charts that are optimized for Apple iOS, Android and BlackBerry devices.
VMware vFabric SQLFire is an in-memory distributed SQL-based cache which can work with a traditional database to persist data to disk.
Mattias Skarin, co-author of InfoQ's popular mini-book on Kanban and Scrum, shares a set of kanban boards that can be used to visually manage anything from system administration, to development teams with multiple clients, to sales.
Yesterday’s announcement that a group of company’s led by Red Hat, IBM, HP and others have formed the Open Virtualization Alliance had bloggers talking. The the goal is to foster the adoption of Kernel-based Virtual Machine (KVM). But speculation ran high after the announcement that some member companies may be attempting to break the stranglehold VMWare and Citrix hold on the market.
Google has announced new or improved APIs at I/O 2011: Prediction – predicting new results from historic data, Fusion Tables – sharing and visualizing data online, and Books – accessing 15M books.
A whole batch of new Ruby VM releases is available. MacRuby 0.8 fixes bugs and begins the path to 1.0. Rubinius 1.2 improves memory efficiency and the debugger. MRI received new patch levels: 1.8.7-p330 and 1.9.2-p136, the first big bug fix update to 1.9.2.
Foursquare recently suffered a total site outage for eleven hours. The outage was caused by unexpected uneven growth in their MongoDB database that their monitoring didn't detect. The system outage was prolonged when an attempt to add a partition didn't work due to fragmentation, and required taking the database offline to compact it. Learn what happened and what responses are planned.
New Relic has released two new variants of its performance tool: RPM for .NET and RPM for PHP. RPM offers performance monitoring and analysis for web applications running on premises or in the cloud.