» Tag

high-availability

2 posts

July 2026

Jul 7, 20267.8
Chasing True Zero-Downtime Redis Sentinel Failover on Kubernetes
An engineer's attempt to achieve near zero-downtime Redis Sentinel failover on EKS: custom preStop hooks, ioredis buffering risks, and the debate over HA at scale.
rediskubernetesnode.jshigh-availability
Jul 6, 20267.5
GitHub Enterprise Server Rebuilds Search Architecture with Elasticsearch CCR
GitHub moves Enterprise Server HA installations to Elasticsearch's Cross Cluster Replication to end fragile, cluster-wide search index failures.
githubelasticsearchhigh-availabilitysearch