Tag
split-brain
- Jul 29, 2026 Leader Leases and Fencing Tokens in Failover Why a demoted leader can still issue writes, how time-based leases bound that window, and why fencing tokens rather than timeouts are what actually protects shared storage. distributed systems
- Mar 21, 2026 Fencing and Quorum in Automated Failover Why a new primary must be able to prove the old one cannot write, how leases fail when a machine is paused rather than dead, and where quorum buys safety more cheaply. devops
- Nov 4, 2025 Fencing Tokens and the Arithmetic of Lease Expiry Why a promoted primary must wait out the old primary lease before accepting writes, how fencing tokens stop a stalled writer, and where the wait comes from. cloud infrastructure
- Oct 21, 2025 Leader Failover: Detection Windows, Fencing, and Split-Brain Avoidance How a failed leader is detected, why a timeout cannot distinguish a dead leader from a slow one, and how fencing tokens stop two leaders from accepting writes. databases
- Mar 15, 2022 Heartbeats, Leases, and the Timeout That Declares a Node Dead Why node liveness is a leased lease with a bounded renewal, how the kubelet's lease write differs from its status report, and what a false positive costs when the network partitions. virtualization