[chandler-dev] Chandler Hub Java/404 mysteries: are things headless-ready?

Grant Baillie grant at osafoundation.org
Thu Aug 20 18:13:02 PDT 2009

On 20 Aug, 2009, at 10:26, Graham Perrin wrote:

>> … something goes wrong in Java land ...
> A long shot: which of the servers for Chandler Hub are headless?
> <http://www.diigo.com/06wdn> for highlights from
> <http://java.sun.com/developer/technicalArticles/J2SE/Desktop/headless/ 
> >.
> <http://www.nabble.com/file/p15360975/ 
> headlessmodewithouttherbi3.png> oddity
> at top left, and non-Chanlder context <http://pastie.textmate.org/590036 
> >,
> remind me how things can look on a Mac OS X when things in Java land  
> are not
> prepared for headless mode.

I don't really understand the hub code or config well enough to be  
sure, but I believe this isn't happening (no evidence of java  
HeadlessExceptions, so far as I can tell). Also, I think this kind of  
problem is more common on Mac OS X than on linux servers, where  
virtual displays, etc, are commonplace.

The only thing I noticed from the logs is that the problem started to  
happen on July 24, a day after some kind of package update, where a  
lot of apache-related packages got installed/upgraded. I have no idea  
whether this is at all relevant :o.


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