Month: April 2007

the Right to Fork

Leon Brooks blogged about the Right to Fork (an essential right for free software development) but notes that governments of countries don’t permit such a right. One of the criteria for the existence of a state is the ability to control it’s own territory. Lose control of the territory and you lose the state, lose […]


praying for rain

Paul Dwerryhouse posted a comment about the Prime Minister asking people to pray for rain. I don’t think that Johnny is suggesting this because he’s overly religious (compare his actions with the New Testament of the Bible). The fact is that the Australian government has no plans to deal with global warming, the inefficient distribution […]


a Heartbeat developer comments on my blog post

Alan Robertson (a major contributor to the Heartbeat project) commented on my post failure probability and clusters. His comment deserves wider readership than a comment generally gets so I’m making a post out of it. Here it is: One of my favorite phrases is “complexity is the enemy of reliability” . This is absolutely true, […]


2 node vs 3+ node clusters

A comment on my post about the failure probability of clusters suggested that a six node cluster that has one node fail should become a five node cluster. The problem with this is what to do when nodes recover from a failure. For example if a six node cluster had a node fail and became […]


failure probability and clusters

When running a high-availability cluster of two nodes it will generally be configured such that if one node fails then the other runs. Some common operation (such as accessing a shared storage device or pinging a router) will be used by the surviving node to determine that the other node is dead and that it’s […]


Debian/Etch release party in Melbourne – Australia

We are having a release party on Saturday the 14th of April. We meet at mid-day under the clocks at Flinders Street Station and then go somewhere convenient and not too expensive for lunch. All welcome. Update: The event was moderately successful. There were only six people including me – that was quite a bit […]


Spooks and GConf

Jeff Waugh wrote an amusing post about SE Linux and GConf support. It’s good to see SE Linux being promoted to the GNOME community. Related posts: music for children Adam Rosi-Kessel made an interesting post about They Might Be…


presentations about SE Linux

I have just read the Presentation Zen blog post about PowerPoint. One of the interesting suggestions was that it’s not effective to present the same information twice, so you don’t have notes covering what you say. Having a diagram that gives the same information is effective though because it gives a different way of analyzing […]


Xen and SE Linux – EWeek review of RHEL5

The online magazine EWeek has done a review of RHEL5. It’s quite a positive review which can be summarised as “good support for Xen as service (not an appliance), better value than previous versions with the licenses for multiple guests included, and SE Linux briefly got in the way but the Troubleshooting tool fixed it […]


what is a BOF?

BOF stands for Birds Of a Feather, it’s an informal session run at a conference usually without any formal approval by the people who run the conference. Often conferences have a white-board, wiki, or other place where conference delegates can leave notes for any reason. It is used for many purposes including arranging BOFs. To […] Speech