Highly Available Data Corruption
Whenever there is doubt, there is no doubt - Robert De Niro, Ronin There is little point ensuring service continuity if the underlying data is toast. Pacemaker makes use of a concept called STONITH to prevent this from happening but many people don’t understand what it is or why it is so important. What is STONITH? STONITH is an acronym for “Shoot The Other Node In The...
STONITH Death-match →
Nice description of STONITH’s limitations in a 2-node environment
A Brief, Incomplete, and Mostly Wrong History of... →
Why Wont the Cluster Start my Services?
Its a common question and a worthy topic for an extended article. Here’s the steps I usually follow when diagnosing such issues. Is the cluster allowed to start services? Check quorum status with crm_mon —one-shot Quorum is a property of the cluster which is attained when more than half the number of known nodes is online. Unlike Heartbeat, OpenAIS based clusters don’t...
This tumbl/blog/thingy exists because I’ve finally accepted that “If we build it, they will come” is a fallacy. The internet is a big place and if you don’t speak up, you’ll get lost in the noise of those that do. So, I’m going to try and use this place to raise awareness of a project that’s very important to me - Pacemaker - an incredibly advanced open...
Is this thing on?
Nothing to see here yet. Just taking the software for a spin.