Matt RaibleMatt Raible is a Web Developer and Java Champion. Connect with him on LinkedIn.

The Angular Mini-Book The Angular Mini-Book is a guide to getting started with Angular. You'll learn how to develop a bare-bones application, test it, and deploy it. Then you'll move on to adding Bootstrap, Angular Material, continuous integration, and authentication.

Spring Boot is a popular framework for building REST APIs. You'll learn how to integrate Angular with Spring Boot and use security best practices like HTTPS and a content security policy.

For book updates, follow @angular_book on Twitter.

The JHipster Mini-Book The JHipster Mini-Book is a guide to getting started with hip technologies today: Angular, Bootstrap, and Spring Boot. All of these frameworks are wrapped up in an easy-to-use project called JHipster.

This book shows you how to build an app with JHipster, and guides you through the plethora of tools, techniques and options you can use. Furthermore, it explains the UI and API building blocks so you understand the underpinnings of your great application.

For book updates, follow @jhipster-book on Twitter.

10+ YEARS


Over 10 years ago, I wrote my first blog post. Since then, I've authored books, had kids, traveled the world, found Trish and blogged about it all.

RECENT ENTRIES


Tag Cloud


abbie appfuse birthday denver family grails gwt jack java javascript jsf linkedin maven montana roller skiing softwaresummit spring springmvc struts2 travel trish vacation webframeworks wicket
« My Dad's heading to... | Main | One big Service... »
Monday February 02, 2004

JavaBlogs and Roller's duplicate post problem

Charles has figured out why JavaBlogs gets duplicate posts from Roller-based blogs. And Dave proposes a solution:

I just now changed the JRoller "absolute URL to site" setting to force the domain name to jroller.com. The setting was blank before.

Without this setting, the JRoller feeds were using whatever hostname was requested at cache refresh time. So if the first request after the cache timeout was for freeroller.net then the GUID's in the RSS feed would read freeroller.net until the next cache timeout.

This site was missing the absolute URL to site setting as well, so I changed it to http://raibledesigns.com. I'll try adding myself back to JavaBlogs aggregator and hope that works!

Posted in Java at Feb 02 2004, 08:46:25 AM MST 3 Comments
Comments:

After a little further thought, I'm guessing think this problem started to happen only after JRoller server was rebuilt after a disk failure. Before the disk failure, the JRoller guys had configured Apache to do URL rewrites so that the only URL Roller would every see was the jroller.com URL. After the failure, rewrites were not enabled and so we started to see this problem. That's my theory at the moment.

I believe there are two ways to solve this problem, 1) use Apache to rewrite URLS or 2) set Roller's "absolute URL to site" parameter.

However, I'm not yet sure the problem has been resolved - I'm still watching JRoller and Javablogs.

- Dave

Posted by Dave Johnson on February 02, 2004 at 11:43 AM MST #

I could be mistaken, but Roller also seems to update the (pubDate) element. I know that this was the reason FeedDemon was duplicating posts. Though that was prior to your adding (guid). Cheers Koz

Posted by Koz on February 02, 2004 at 01:59 PM MST #

I see duplicate posts in nntp//rss as well. I just assumed it was an issue with the latter, though raibledesigns is the only feed effected. --johnt

Posted by John Tangney on February 03, 2004 at 08:46 AM MST #

Post a Comment:
  • HTML Syntax: Allowed