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.
While VMWare offering a new range of products to support its vision of enterprise cloud computing at VMWorld 2010 is interesting from an operations and user perspective, developer focus is on vFabric the Spring platform for developing and running cloud based applications. The goal is to provide the same convenience infrastructure for cloud applications as for spring based enterprise applications.
A Computerworld article and webinar announcement, both featuring the use of iRise, to visually capture business application requirements calls attention to this growing product segment.
Continuous deployment has gained a recent buzz in the Lean-slanted "eliminate work-in-progess" movement. But while many may find this an intriguing and logically worthwhile objective, many less can visualize how this might actually be achieved. Ash Maurya helps to fill this gap by describing his experience with making it happen at his company.
The Unladen Swallow project that aims to speed up Python has proposed to be merged into mainstream Python. One of Unladen Swallow's goals was to remove the GIL; a new implementation of Python's GIL by Antoine Pitrou will be fairer and less intrusive on multicore CPUs. Also: Squeak Smalltalk has been ported to Android.
Rubinius 1.0RC2 adds binary installers, while Ruby 1.9.2 will get DTrace support. IronRuby moves closer to 1.0 and SharpDevelop 3.1 gains IronRuby support. Also: WEBRick users should consider upgrading to the latest versions of Ruby 1.8.x and 1.9.1 because of a recently discovered vulnerability.
Clojure 1.1 RC1 is out and cuts the overhead of functional programming with a few new constructs: transients bring controlled mutability for persistent data structures; chunked sequences make lazy sequences more efficient. InfoQ takes a look at what makes these improvements work.
NewRelic just released RPM 2, the latest version of their performance monitoring software. RPM, which is available as SaaS (Software as a Service) now supports monitoring Java web/JEE applications as well as Ruby on Rails applications. We talked to NewRelic's Lew Cirne about the new release.
A new release of the Ruby Enterprise Edition switches from Ruby 1.8.6 to Ruby 1.8.7 and includes patches that significantly improve performance, as Evan Weaver from Twitter confirms.
Microsoft released a free MapPoint 2009 Add-In for SQL Server 2008 spatial data. The add-in can be used with MapPoint to build map graphics against queries on SQL Server 2008 spatial geography columns.
JRuby 1.3 is now available, bringing performance improvements and compatibility with Google AppEngine. Work on other improvements is continuing and a first version of the ruby2java compiler is now available. Also: InvokeDynamic support is making it's way into the builds for the next Java version.
In this article Alex Devine explains how Java developers can take advantage of Perf4J, an open source toolset for adding code timing statements and for logging, analyzing and monitoring the results.
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