Archive | Technology

OpenDisc 08.07 released!

Chris Gray posts: “We’re pleased to release 08.07, the latest version of OpenDisc, with no less than twenty five updates, including Firefox 3 and the latest milestone versions of OpenOffice.org, FileZilla, Seamonkey and many more.” Grab the .iso or join the torrent at http://www.theopendisc.com.

The Open Disc has been a huge benefit in getting clients to see the power of Open Source. On a single disc they can install on all of their Windows machines, share with their friends, make a copy to take home, and it includes a complete office package (OpenOffice.org 2.4), a PDF driver (PDFCreator), diagramming tools (dia, InksScape), desktop publishing software (Scribus) and lots more. It’s a bargain at twice the price!

Catching up…

It’s been busy, busy month, and blogging was one of many things put off. Now, it’s time to start catching up.

I had an awesome month of June. Working on my main client project, we released yet another update on 12 June. After that, I took two weeks “off” — at least away from billing — to do some professional upkeep.

I spent a few days studying and then took the two MySQL 5.0 Developer certification exams on Tuesday the 17th. I went to the Blended Solutions facility in the Mall of New Hampshire, adjoining the PSNH building on Elm Street in Manchester, NH, and took the two exams, back-to-back. The first exam was the simpler of the two. Reviewing all the questions a couple times, I was still done in under an hour. The second exam, though, was a bear! The material was the more advanced stuff, some of the questions were trickier, some of the topics were material I had only book knowledge on. I marked a bunch of questions for review, went back and filled in all the answers, reviewed and debated and over-thought a bunch of questions and then, with three minutes left, decided any answers I changed in a panic were more likely wrong than right, and stopped. I passed both exams with acceptable scores, but nothing I’d brag about. “What do they call the man who graduates at the bottom of his class in med school?” “Doctor.” So, I’m pleased to have the opportunity to establish my level of knowledge, flag a couple of areas I need to learn more about, earn a logo I can display as part of my marketing and gain a listing as a MySQL Enterprise Ready Partner.

Wednesday the 18th of June was the first day of the Red Hat Summit in Boston. I attended all three days, commuting from Contoocook to the Anderson Rail Center in Wilmington and taking public transportation from there. While it made for a lot of hours on the road, the savings over staying in town were significant (total parking and rail for the week: $84 for 6 days), and sleeping at home in my own bed very much appreciated. The Red Hat Summit was a fascinating event. I wasn’t that familiar with the corporate structure or the market focus of Red Hat and I got much better insights into who they are and what they do. Here’s a slew of links on what went on, Red Hat announcements, and links to presentations.

Parallel to the Red Hat Summit was the Fedora Users and Developers Conference, FUDCon10 for short, that shared the Hynes Auditorium facilities on Thursday and Friday, and met at the Photonics Center at Boston University on Saturday. Even though many Fedora participants are Red Hat employees, the tone and structures of the groups are dissimilar. I missed a lot of the last-minute organizational notes the FUDCon’ners put together to organize their HackFest, so I tended to attend the Red Hat sessions instead. In the future, I’m more likely to put more effort into the HackFest side of things. Saturday was a BarCamp, a one-day self-organized conference. As I noted at last year’s conference, the means of pitching sessions, voting, scheduling and running the show are put together on the fly, and the results are startlingly good. Having pretty much had my brain filled of tech at the Red Hat Summit, I chose instead to focus more on process sessions, and learned about bug triaging, web site usability issues, and Fedora structure. A great use of a day, and a great chance to attach faces to the name and shake a few hands.

Sunday was a day of rest for me, and a day of washing laundry for Laura. Thank you!

Monday found me back on the Commuter Rail, this time attending An Event Apart just across the street from the Prudential Center where the Summit had been. Two long days of sessions were focused on the web, primarily design and usability, very different aspects from the two previous conferences. Like the Red Hat Summit, this conference was a little outside my comfort zone, in this case, designers rather than developers. Jeffrey Zeldman puts on an incredible show; facilities were superb, speakers knowledgeable, swag cool. Eric Meyer is the authority in the field of CSS, and it was his sessions I got the most practical tools from, but all of the sessions were well-presented, informative and thought-provoking. Jared Spool of User Interface Engineering had a very funny and very insightful session on analyzing clickstreams for success that will have me restructuring some of my client’s web sites. All of the speakers had great observations on the state of the art and future directions. Great stuff! Several other people took great notes I can share with you.

Arriving back to work on Wednesday, there was no time to decompress; a day of meetings lead to a couple frantic days of shipping yet another release and picking up another couple of projects. Thirty billable hours later, my super-contractor did a high-five tag-team tag and was off on his own adventures, while I took over sheparding a release out the door on Friday with some new features, new team members, new procedures and new prototcols. Whew!

It’s been an exhausting three weeks, but an exhilarating time, too. Hope to blog more details as I catch up on all the other projects.

DLSLUG Notes, 5-June-2008: Bill Stearns, FUSE filesystems

Twenty-two people attended the June meeting of the Dartmouth-Lake Sunapee Linux User Group held as usual on the first Thursday of the month. We were fortunate once again to get room 041 in the lower-level of Haldeman, with power and ethernet jacks at each seat.

As seems required at each LUG meeting, persuading the projector to show X is always a challenge. Bill Stearns is a big believer in the “power on the projector first, then the laptop connected to the projector” theory, which I also like. Today, though, 800 x 600 was the best he could do, even with this work-around. There’s a good Summer of Code project in there somewhere, if not a PhD thesis. Video negotiations between machine and display start with bootup and BIOS code and run through X configuration and ends with xrandr or direct x.org tweaking. (Update: I saw a new applet in the “What’s New in Nine” session at FUDCon where the configuration of video on the fly was a lot easier! Looking forward to trying it out!)

Bill McGonigle also recorded the audio from the event. Keep an eye out for an announcement on when the recording might be available. (With gas prices climbing, I’ll be attending more meetings virtually via podcast. Someone ought to do a meeting on… 🙂

Bill Stearn’s presentation was on FUSE filesystems, additional file systems over and above what’s needed to start your system. There are infinite possibilities on what you might want loaded as a block device and manipulated with the tools that know how to work with a filesystem: a compressed archive, a remote music source, a database, an encrypted volume, etc., and there’s a good chance someone’s already started writing a FUSE driver for it. The list of drivers under development is pretty impressive and some of them fairly innovative.

Bill started with a couple of slides to establish the basic terminology and to walk through the basic commands of setting up a couple of the FUSE filesystems. Soon abandoning the slideshow, Bill hopped into a shell and actually performed the operations, showing how an encrypted filesystem might work, how archives could be read as files (or grepped or wc’d or…) and how gluster, a cluster file system capable of managing petabytes, could be used. There was a lot of audience participation and “Yeah, but what if…” questions and a good time was had by all.

Roger Trussel is scheduled to present jUnit at the July meeting.

Thanks to Bill Stearns for his great presentation and handouts, Bill McGonigle for organizing, promoting and herding cats at the meeting, to Heidi Strohl (http://www.heidistrohl.com) for providing the refreshments (awesome cookies!) and to all for attending and participating.

Notes from CentraLUG, 2-June-2008: Mark Boyajian, Open Source Advocacy

Twelve folks attended the June meeting of the Central New Hampshire Linux User Group, held as usual on the first Monday of the month, but at the summer venue of the Hopkinton Public Library. Attendance was a delightful mix of regulars and new visitors.

As the crowd had some new members, I spent some time introducing the GNHLUG and its many chapters, its purpose and that upcoming events (there are many!) can be found on the gnhlug.org web site. We had a round of announcements and introductions and got into the main presentation.

Mark Boyajian has been working with Bill Sconce to demonstrate and encourage the use of Open Source software at the Lawrence Library in Pepperell, MA, strongly encouraged by the Library Director Debra Spratt. Deb has been instrumental in getting equipment set up, encouraging them to establish an information kiosk where they could feature news and posters about Open Source, as well as setting up an older machine with Linux. Mark brought along some pictures to show their setup and talked about the good reception they’ve got from attendees and the interest generated. Mark had some success stories to share and some interesting stories of the misconceptions he tried to address.

Thanks to Mark for the presentation, to Bill Sconce for providing the projector, to the Hopkinton Public Library for use of the facilities, and to all for their attendance and participation.

Notes from PySIG, 22-May-2008: IPython and Frangoes

Twelve folks attended the May meeting of the Python Special Interest Group, held as usual at 7 PM on the fourth Thursday at the Amoskeag Business Incubator in Manchester, New Hampshire. Vigorous discussion, idea exchange, job openings and, yes, Python, was discussed in depth.

Bill Sconce was the master of ceremonies and lead off with his usual printed agenda of items: Welcome, Announcements, a round of introductions, Janet’s Famous Cookies (this week, Frangoes! Awesome!), open announcements and discussions of gotchas.

Sample Q: how to debug binary text that may or may not be Unicode? A: Mark Pilgrim’s Universal Encoding Detector, [link updated, tr] originally part of his famous Universal Feed Parser.

Sample Gotcha: scripts with a she-bang line might not always be transportable between Windows, Unix and OS X because of line ending differences. If your parser complains about invalid commands on the she-bang line, make sure your line endings are correct for the platform.

Shawn K. O’Shea arrived and proceded to note every passing mention (with links!) in his great blog entry at: http://www.eth0.net/blog/?p=12 — thanks, Shawn!

Kent asked about using Python to interface with an existing C++ code and a lot of useful suggestions were forthcoming.

Arc updated us on the state of PySoy: the major bug that was crashing PySoy seems to have been isolated, and the code is orders of magnitude more stable. Bug fixing is proceding apace and an end-of-summer major release appears feasible.

Discussion on the upcoming Software Freedom Day got an enthusiastic reception, with several folks considering something in their communities.

On to the main presentation: Kent presented his monthly Kent’s Korner featuring the IPython interactive shell. IPython is slick, with a slew of features and quite a bit of documentation as well. IPython is not just a shell, but also an embeddable library that can bring scripting features into your application, and can also be used as a non-blocking interface to graphical environments like GTK, Qt and Wx (unlike the standard Python shell, which only works against Tk). Anyone doing a lot of work with Python from the shell needs to check out IPython!

Thanks to Kent for the presentation, to Bill for running and promoting the show, to Janet for the awesome Frango cookies, to Shawn for the excellent capture of the night’s events, to ABI for their great facilities and to all for participating!

openSUSE News » Thesis on openSUSE Published

openSUSE News » Thesis on openSUSE Published

A year’s research on Novell and the openSUSE project is now published as a master’s thesis at the University of Oslo. “Managing Firm-Sponsored Open Source Communities” details the collaboration between Novell and the openSUSE community. Community members and employees in Novell have participated in the study.

It’s cool seeing some serious study of how for-profit companies can work successfully with for-merit software development efforts like OpenSuse, Ubuntu or Fedora and make it a win-win situation for both. There’s a mercifully short executive summary for those who want the highlights, and the full 130+ page thesis available online.
(via LXer.com)

Notes from NH Ruby/Rails Group, 20-May-2008

Five members attended the May meeting of the New Hampshire Ruby / Rails group, held as usual at the offices of RMC Research in Portsmouth.

Nick Plante entertained and educated the group on Rack, a foundation layer that interfaces between the web application handler (like Mongrel or FastCGI) and the actual web application framework adaptor (like Merb or Camping or Halcyon or Sinatra) in a manner similar to the Python WSGI layer. It allows for the creation of custom web frameworks while removing a lot of the grunt work. Nick had a sample application whipped up where a few lines of code could define the routing of various requests and cleverly answered “Hello, World” to the correct RESTful query.

For those for whom Rails isn’t the complete answer or those who want to build their own web functions with components other than those used by the Rails framework, Rack is a foundation on which you should be plugging together your building blocks.

Brian Turnbull volunteered to fill in for Scott Garman, who had to cancel at the last minute. Brian had been using NetBeans only a brief while, but had a great story to tell on using the built-in debugger to trace out a problem with Rails-generated CSS meta tags always getting a cache-breaking URL. While a feature in development, when the CSS was being served from a caching store like Amazon’s S3, the ever-changing URL defeated the point of caching. Brian showed how breakpoints could be applied to the code and step-by-step tracing (why is it that all debuggers have Step-In, Step-Once, Step-Over, Step-Out icons that all look the same and can’t be told apart?) and walked from his code into the Rails framework down to the mis-behaving component.

Having identified the problem, our discussion took a tangent into a discussion about monkey-patching, and how this ‘feature’ was a bug deserving of an optional switch to disable, and ought to be submitted upstream to the Rails maintainers. To confirm, we went through the steps to grab the latest version of rails as a plug-in (gem? I’m not sure.) so that we were working with the latest ‘edge’ code to confirm the problem hadn’t already been fixed. By installing this way, we were overriding the Rails framework only for this application, and could easily revert to the stable version, without disturbing the main shared code on the machine. We talked about how this was a Best Practice when bringing an app under development up to production, so it was isolated from changes outside of the app’s control.

Plenty of time was available for discussion, and we talked with Tim a bit about configuring a new machine with all the tools he’d need to develop a Rails app with NetBeans: Ruby, Rails, a couple good gems, the Java runtime. Nick and Brian noted that the default Rails environment within NetBeans is JRuby not MRI (Matz’ Ruby Interpreter) and how you might want to reconfigure NetBeans to use MRI instead if you weren’t planning on deploying to a JRuby environment.

Thanks to Nick and Brian for their presentations, to Scott for arranging the meeting, to Tim and RMC for providing the great facilities and to all for attending the meetings! Discussion is ongoing now on the topics for the June meeting; join the mailing lists at http://mail.nhruby.org/mailman/listinfo/ and keep an eye on the new meeting plans at http://wiki.nhruby.org/index.php/Upcoming_meetings.

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This work by Ted Roche is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States.