Terrorism FoolishnessTerrorism Foolishness
The Age has published a remarkably stupid article about terrorism titled “It’s hard to prevent the hard to imagine” which contains some amusing statements such as “a plan to use[...]
Tag: Best Posts
Committing Data to DiskCommitting Data to Disk
I’ve just watched the video of Stewart Smith’s LCA talk Eat My Data about writing applications to store data reliably and not lose it. The reason I watched it was[...]
Xen and HeartbeatXen and Heartbeat
Xen (a system for running multiple virtual Linux machines) and has some obvious benefits for testing Heartbeat (the clustering system) – the cheapest new machine that is on sale in[...]
Pointers in Bash Shell ScriptsPointers in Bash Shell Scripts
# foo=bar # name=foo # echo ${!name} bar The above example shows how to make a bash environment variable reference the value of another. # echo ${!f*} foo fs_abc_opts fs_name[...]
A Lack of Understanding of Nuclear IssuesA Lack of Understanding of Nuclear Issues
Ben Fowler writes about the issues related to nuclear power in Australia. He spends 8 paragraphs discussing the issues on the “Right” side of politics – of which 6 concern[...]
Easy Search Engine Optimisation in WordPressEasy Search Engine Optimisation in WordPress
The first thing you need is to have meta keywords in the pages. The solution I discovered for doing this is the All In One SEO Pack, this automatically makes[...]
configuring a Heartbeat serviceconfiguring a Heartbeat service
In my last post about Heartbeat I gave an example of a script to start and stop a cluster service. In that post I omitted to mention that the script[...]
Heartbeat service scriptsHeartbeat service scripts
A service script for Heartbeat needs to support at least three operations, start, stop, and status. The operations will return 0 on success, 7 on failure (which in the case[...]
Another Heartbeat 2.0 STONITH example configurationAnother Heartbeat 2.0 STONITH example configuration
In a Heartbeat cluster installation it may not be possible to have one STONITH device be used to reboot all nodes. To support this it is possible to have multiple[...]
Heartbeat version 2.0 CIB STONITH example configurationHeartbeat version 2.0 CIB STONITH example configuration
Below is a sample script to configure the ssh STONITH agent for the Heartbeat system. STONITH will reboot nodes when things go wrong to restore the integrity of the cluster.[...]