java Archives - Sky's Blog

Slicehost- Tomcat installation on a tiny virtual server

7 September, 2009 by sky Leave a Comment

Geek alert! This article is for Slicehost geeks only.

Talk about playing on the edge, I almost fell off this time. I have eight slices (virtual servers, that is) on Slicehost (which is now owned by Rackspace) and believe me they are tiny!^[1] But they can serve low-volume to medium-volume web sites pretty well. For instance, Shaping Youth (several thousand visitors a day) and GirlsHorseClub are on these little servers and they serve up pretty rapidly.^[2] Nice thing about Slicehost is that any host can be scaled up from the tiny size to 16x that size, and because it’s cloud computing, you can also bring up multiple instances of any server and have them share load. This allows me to implement the traditional three-tiered architecture (web/application/database) quite well without having to worry about whether my servers will be able to handle the load because I can scale ’em up whenever I need to.

But, the catch is that when you start with the tiniest slice (256MB RAM) you really have to fine-tune your operating system and applications in order to get good performance out of them. [Read more…]

MySQL and Java – two birds with one stone

22 April, 2009 by sky Leave a Comment

The old phrase “killing two birds with one stone” – yeah it sounds impossible when you think about it realistically – ka-bing, ka-bing, there they go. But Oracle may succeed in killing off both Java and MySQL after its acquisition of Sun Microsystems. Or at least sidelining both into stagnation in favor of big-ticket licensed Oracle products.

In 1999 to 2001 I was responsible for purchasing Oracle licenses for a large organization with large plans. We paid hundreds of thousands of dollars (US) for initial and continuing licenses on Oracle database software. The stuff was industrial-strength. But since then I’ve used (the free) MySQL dozens of times for small-to-medium size sites. And several systems I’ve used or designed have been Java-based as well. The availability of these free tools is critical to the existence of millions of web sites around the world. [Read more…]

Did PHP kill the Java radio star?

10 April, 2009 by sky Leave a Comment

Responding to Infoworld Did PHP kill the Java radio star?

Zend’s CEO, Andi Gutmans, claims that PHP is disrupting Java. Meaning that PHP has gotten a significant toehold and is dislodging Java from its position as the granddaddy of server-side web applications frameworks[1]. I take the word disrupting in its modern sense of disruptive technology – a technology that significantly differs from the standard paradigm and whose effect would have been hard to predict, based on the “rules” of the standard paradigm.

I am a long-time Java-user (9 years) and I agree that PHP is a real contender in the web applications sphere… and would like to make some additional observations. [Read more…]

Evangelism and process planning

17 July, 2005 by sky Leave a Comment

Java

Use Linux! Use Windows because everyone else does and Microsoft isn’t going to go away. Use Java because it runs everywhere. Use Plone/Zope. Use Drupal. Use Open Source. Use commercial products because they’re well-supported. Use Freeware.

On and on we go, extolling the virtues of the various software systems we might use to build a new web site for our particular community of practice.

It’s a fun discussion for geeks everywhere. Promoting our favorite systems. (Mine is Java and ODBC databases.) But, where does it get us in the NPO world?

[Read more…]