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Describes the condition of a server or service at a given time, including configuration, running processes and persistent data. Relevant for availability, consistency and recoverability in distributed systems.
Server state denotes the condition held by a server or service at a given time, including configuration, running processes, and persistent data. It is critical for availability, consistency, and recoverability in distributed systems. It informs design choices such as stateless architectures, replication, consistency models, and backup strategies.
Maximum allowable recovery time after outage.
Maximum acceptable data loss in time (e.g., seconds/minutes).
Time between state change and visibility in replicas.
StatefulSet orchestrates pods with stable identities and special persistent volume handling for stateful workloads.
etcd stores distributed cluster state (e.g., Kubernetes metadata) in a consistent key-value store.
External session storage reduces local server state and enables horizontal scaling.
Analyze: Document consistency, latency and availability requirements.
Design: Define state model, replication strategy and recovery plans.
Implement: Select and integrate suitable storage technology.
Operate: Establish monitoring, backups and regular restore tests.