OpenACS
There's no getting around it: OpenACS is a complex beast. Although the software is generally excellent, it requires an experienced UNIX/web/database hacker to use and modify it. Even the installation procedure is long and complicated, and I can assure you from personal experience that it's often hard to understand where you have made a mistake. The documentation is improving, but there are many gaping holes and difficult-to-understand table structures that can be confusing.
As if that weren't enough, the code isn't completely finished in many places. Yes, the fact that OpenACS is open source does mean you can fix things yourselves. And the community is generally quite open and generous, giving help to those who are trying to get started with it. But it's frustrating to hear constantly that the packages you need are almost ready or that someone expects to finish with them at some point in the future. I'm not averse to helping improve open-source projects, especially when it benefits me (and my clients) directly, but many small annoyances can add up quickly.
Given these complaints, it might seem absurd to think that I endorse OpenACS at all. And indeed, it probably will take some time for the dust to settle and for all of the necessary improvements to be made. But there's no getting around the fact that OpenACS provides a much richer infrastructure for creating on-line communities than anything else I've seen. The included applications might not work completely, but they work pretty darned well overall, and provide most of the functionality that my clients need, right out of the box. Finally, a number of commercial consulting companies, several universities and one or two dozen independent consultants are working on improvements and extensions to OpenACS that promise to make it more robust and featurefull than it is today.
If you're creating an on-line community, and you're not afraid to get your hands dirty with Tcl and SQL code, then you should take a serious look at OpenACS. This month, we considered the overall structure of OpenACS and saw how to install its various elements. Next month, we'll look at how to install and manage the various packages that come with OpenACS, so that we can put together a custom community site that includes only those programs that we really need.
email: reuven@lerner.co.il
Reuven M. Lerner is a consultant specializing in web/database applications and open-source software. His book, Core Perl, was published in January 2002 by Prentice Hall. Reuven lives in Modi'in, Israel, with his wife and daughter.
- « first
- ‹ previous
- 1
- 2
- 3
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
Sponsored by AMD
Built-in forensics, incident response, and security with Red Hat Enterprise Linux 6
Every security policy provides guidance and requirements for ensuring adequate protection of information and data, as well as high-level technical and administrative security requirements for a system in a given environment. Traditionally, providing security for a system focuses on the confidentiality of the information on it. However, protecting the data integrity and system and data availability is just as important. For example, when processing United States intelligence information, there are three attributes that require protection: confidentiality, integrity, and availability.
Learn more about catching the bad guy in this free white paper.
Sponsored by DLT Solutions
| Designing Electronics with Linux | May 22, 2013 |
| Dynamic DNS—an Object Lesson in Problem Solving | May 21, 2013 |
| Using Salt Stack and Vagrant for Drupal Development | May 20, 2013 |
| Making Linux and Android Get Along (It's Not as Hard as It Sounds) | May 16, 2013 |
| Drupal Is a Framework: Why Everyone Needs to Understand This | May 15, 2013 |
| Home, My Backup Data Center | May 13, 2013 |
Enter to Win an Adafruit Pi Cobbler Breakout Kit for Raspberry Pi

It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Pi Cobbler Breakout Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- 5-21-13, Prototyping Pi Plate Kit: Philip Kirby
- Next winner announced on 5-27-13!
Featured Jobs
| Linux Systems Administrator | Houston and Austin, Texas | Host Gator |
| Senior Perl Developer | Austin, Texas | Host Gator |
| Technical Support Rep | Houston and Austin, Texas | Host Gator |
| UX Designer | Austin, Texas | Host Gator |
| Web & UI Developer (JavaScript & j Query) | Austin, Texas | Host Gator |
Free Webinar: Hadoop
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
Some of key questions to be discussed are:
- What is the “typical” Hadoop cluster and what should be installed on the different machine types?
- Why should you consider the typical workload patterns when making your hardware decisions?
- Are all microservers created equal for Hadoop deployments?
- How do I plan for expansion if I require more compute, memory, storage or networking?




1 hour 43 min ago
1 hour 44 min ago
3 hours 44 min ago
12 hours 29 min ago
13 hours 3 min ago
14 hours 2 min ago
14 hours 52 min ago
18 hours 54 min ago
22 hours 41 min ago
22 hours 49 min ago