hesela.devNetwork partition
A network partition is a communication failure that prevents message exchange between groups of nodes that may still be running.
Scope: A lost heartbeat does not prove that a peer has stopped or lost storage access. The communication failure and the enforcement of resource exclusion are separate observations. [1]
Formal boundary: The CAP model permits arbitrary message loss between components. It cannot guarantee both linearizable reads and writes and eventual completion of every read/write request received by a non-failing node across all such executions. This availability definition is not an uptime percentage or a latency deadline. [2]
Relations
Citations
- ClusterLabs: Pacemaker Explained 3.0, Fencing, sections 8.1-8.3 and 8.11
- Gilbert and Lynch (2002): Brewer's Conjecture and the Feasibility of Consistent, Available, Partition-Tolerant Web Services
Sources & caveats
- Source review of Pacemaker 3.0 and Gilbert and Lynch sections 2.1-2.3 and 3.1, accessed 2026-11-09. No cluster fault-injection experiment.