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This month
RemoteOperations 3D Software Helps H1N1-Affected Businesses
by danijelzi
(via)
Forterra Systems today announced the availability of RemoteOperations 3D Internet collaboration solution, helping organizations to continue normal operations in the event they are directly affected by the H1N1 flu outbreak.
October 2009
Creating Offline Web Applicat...
by oseres
Creating Offline Web Applications With Dojo Offline
by Brad Neuberg (SitePen), September 23rd, 2007
This tutorial steps you through creating offline web applications using Dojo Offline.
What is Dojo Offline?
Dojo Offline is an open-source toolkit that makes it easy to create sophisticated, offline web applications. It sits on top of Google Gears, a plugin from Google that helps extend web browsers with new functionality. Dojo Offline makes working with Google Gears easier; extends it with important functionality; creates a higher-level API than Google Gears provides; and exposes developer productivity features. In particular, Dojo Offline provides the following functionality:
An offline widget that you can easily embed in your web page with just a few lines of code, automatically providing the user with network feedback, sync messages, offline instructions, and more
A sync framework to help you store actions done while offline and sync them with a server once back on the network
Automatic network and application-availability detection to determine when your application is on- or off-line so that you can take appropriate action
A slurp() method that automatically scans the page and figures out all the resources that you need offline, including images, stylesheets, scripts, etc.; this is much easier than having to manually maintain which resources should be available offline, especially during development.
Dojo Storage, an easy to use hashtable abstraction for storing offline data for when you don't need the heaviness of Google Gear's SQL abstraction; under the covers Dojo Storage saves its data into Google Gears
Dojo SQL, an easy to use SQL layer that executes SQL statements and returns them as ordinary JavaScript objects
New ENCRYPT() and DECRYPT() SQL keywords that you can mix in when using Dojo SQL, to get transparent cryptography for columns of data. Cryptography is done on a Google Worker Pool thread, so that the browser UI is responsive.
Integration with the rest of Dojo, such as the Dojo Event system
Gearman
by Xavier Lacot
Gearman provides a generic application framework to farm out work to other machines or processes that are better suited to do the work. It allows you to do work in parallel, to load balance processing, and to call functions between languages. It can be used in a variety of applications, from high-availability web sites to the transport of database replication events. In other words, it is the nervous system for how distributed processing communicates.
One type of asynchronous and worker solution I could use in the implementation of asynchronousity in Symfony's media plugin
Sponsorised links
September 2009
July 2009
Build Wikipedia query forms with semantic technology
by karlcow
By providing open access to increasing amounts of Linked Data, public SPARQL endpoints are boosting the growth of the Semantic Web by providing great data for you to use in your applications. As with many other data-driven Web sites out there, a Web page can be created by sending a query to these endpoints and then wrapping the results in HTML tags; the big difference for SPARQL endpoints is the public availability of this new data for your applications. This article shows how simple CGI scripting can get data from two different SPARQL endpoints to build applications that answer your user's questions about actors shared between two directors and which musicians have released which albums.
June 2009
The KDE on Windows Project - KDE on Windows News
by tadeufilippini
(via)
KDE on Windows News
RSS
April 7th, 2009 : KDE 4.2.2 for Windows available
The KDE on Windows team today announced the immediate availability of "Cano", (a.k.a KDE 4.2.2), another bugfix and maintenance update of the KDE release. New in this release is an unstable snapshot of K3B, the KDE cd burning application. As a service release, the changelog contains a list of bugfixes and improvements. Note that the changelog is usually incomplete, for a complete list of changes that went into KDE 4.2.2, you can browse the Subversion log. KDE 4.2.2 also ships a more complete set of translations. The binary packages could be installed with the installer by using the version "stable 4.2.2" (or "stable latest"). In case you are upgrading your KDE installation, deselect the skip basic settings checkbox on the first installer page and press next until you are guided to the release settings page where you can choose the required version.
(KDE on Windows Team)
May 2009
Gearman C Server and Library in Launchpad
by greut
This is a rewrite (in C) of the Perl version found at http://danga.com/gearman/. It includes the both a client/worker library, as well as the server. The server acts as a bridge between workers (clients who can do work) and callers (clients who want work done). You should run several servers (at least two) for both load balancing and high availability.
Another nice background tasks tool.
April 2009
BRapid - RS Tool rapidshare toolbar home page
by cascamorto
RS Tool is useful toolbar for Internet Explorer and Mozilla Firefox, which makes searching for rapidshare files much more convenient than ever before !
Having this toolbar, all its users enjoy detecting rapidshare links on viewed webpages, checking files availability and option to show all rapidshare links/files together in a list.
Web Cache | Gear6
by ERSWeb
(via)
Gear6 Web Cache is a Memcached protocol-compliant solution that scales and accelerates web applications, reduces memory footprint, enhances availability and implements comprehensive Memcached management features. Designed to work with all popular memcache clients, Gear6 Web Cache integrates seamlessly into existing deployments and immediately provides a scalable, high density caching solution for your web application environment.
February 2009
Reading from a smartphone, the smart way | Monday Note
by night.kame
Why not push the idea a little further? Let’s imagine. I’m a reader of, say, The Guardian, Le Monde or the Norwegian VG. And I want to consume my online paper during my morning commute. My iPhone (or any future similar device) is set to wake up at 7h00 sharp and download my favorite web sites’ latest updates.
Ca s'appelle AvantGo, et on l'utilisait en 2000. Une bonne phrase dans l'article néanmoins :
Anytime/anywhere broadband availability exists only in Google’s imagination.
January 2009
December 2008
Musings of an Anonymous Geek » Blog Archive » How Are You Staffing Your Startup?
by karlcow
pas seulement pour la partie technique, mais malheureusement pour la partie commerciale et communicationSome seem to have given almost zero consideration to the fact that their application might become successful, and its availability might become quite critical. They haven’t given much thought to things like backups or disaster recovery. They have no plan for how to deploy their application such that when it comes time to scale, it has some hope of doing so without large amounts of downtime, or huge retooling efforts.
Lancement officiel de FacebookConnect, la bataille pour votre identité a commencé
by gregg
& 2 others
C’est aujourd’hui que Facebook va présenter devant la presse le service Facebook Connect qui fut annoncé en Mai. Le NY Times en parle dans un long article où il présente également les services concurrents, MySpace (Data Availability) et Google (Friend Connect).
November 2008
Setting Up Master-Master Replication On Four Nodes With MySQL 5 On Debian Etch | HowtoForge - Linux Howtos and Tutorials
by camel
& 1 other
(via)
This tutorial explains how you can set up MySQL master-master replication on four MySQL nodes (running on Debian Etch). The difference to a two node master-master replication (which is explained here) is that if you have more than two nodes, the replication goes in a circle, i.e., with four nodes, the replication goes from node1 to node2, from node2 to node3, from node3 to node4, and from node4 to node1.
Since version 5, MySQL comes with built-in support for master-master replication, solving the problem that can happen with self-generated keys. In former MySQL versions, the problem with master-master replication was that conflicts arose immediately if node A and node B both inserted an auto-incrementing key on the same table. The advantages of master-master replication over the traditional master-slave replication are that you don't have to modify your applications to make write accesses only to the master, and that it is easier to provide high-availability because if the master fails, you still have the other master.
October 2008
flipper - Google Code
by camel
& 1 other
Flipper is a tool for managing pairs of MySQL servers replicating to each other (commonly known as master-master replication or dual-master replication). Master-master replication is a great way of ensuring high availability for MySQL databases - it enables one half of the pair to be taken offline for maintenance work while the other half carries on dealing with queries from clients.
Flipper achieves this by moving IP addresses based on a role ("read-only", "writable") between the two nodes in the master pair, to ensure that each role is available.
Flipper is written in perl, and has been designed to be as portable as possible.
August 2008
Nikon Announces D90 Digital SLR - First Ever With Movie Mode - Articles / Reviews | TheTechLounge
by TTLKurtis
(via)
Nikon today announced the D90 Digital SLR - successor to the D80. It's slated for availability some time (late?) September, at an ESP (estimated street price) of $999.95. We got our hands on some exclusive 720p high-definition video - taken with the D90 - from pro photographer Chase Jarvis. Looks promising, indeed.
Monitoring performance and availability of an apps ecosystem
by BlueVoodoo
Focus on strategies and techniques for monitoring the performance and availability of an application's supporting and dependent services. This includes the underlying host operating system, the operational database, and messaging infrastructures. The article concludes with a discussion of performance data management issues and data reporting and visualization.
About Opsview | opsview.org
by camel
& 1 other
Opsview is enterprise network and application monitoring software designed for scalability, flexibility and ease of use. Opsview has been in development since 2003 and is released under the GNU GPL license. Current version is 2.12.
Opsview is a fully integrated monitoring tool that incorporates popular Open Source software including Nagios, Net-SNMP and RRDtool. The Catalyst web framework provides an extensible monitoring and configuration user interface.
Opsview software is supported on Linux (Debian, CentOS, RHEL and Ubuntu) and Solaris 10. It will monitor all common operating systems including Windows.
Opsview extends the capabilities of Nagios in the following ways:
* Distributed monitoring with high availability and fail-over
* Much improved SNMP support with trap processing with rules engine
* API supporting automation of Opsview configuration
* Data warehouse for storage of historical performance and event data
* Opsview Reports customisable reporting
* Powerful configuration and management UI
* Extended monitoring UI
* Extensible architecture based on Catalyst Web Framework and Altinity middleware software
Java run-time monitoring, part 2: Performance monitoring
by BlueVoodoo
It's important to monitor the availability and performance of Java applications and their dependencies in production to ensure problem detection and accelerate diagnosis and triage. This second installment presents techniques for instrumenting Java classes and constructs without modifying the original source code.
