Glossary
Definitions of terms and concepts used in Grand Central documentation.A
API GatewayEntry point for all API requests, handling routing, authentication, and rate limiting Availability Zone
Isolated location within a region for high availability
C
Circuit BreakerDesign pattern that prevents cascading failures by stopping requests to failing services Connector
Pre-built integration that connects Grand Central to external systems CQRS
Command Query Responsibility Segregation - pattern separating read and write operations
D
Distributed TracingMethod for tracking requests across multiple services
E
Event SourcingPattern where state changes are stored as a sequence of events
H
Health CheckEndpoint that reports the health status of a service Horizontal Scaling
Adding more instances of a service to handle increased load
I
IdempotencyProperty where an operation produces the same result when executed multiple times
L
Load BalancerDistributes incoming traffic across multiple service instances
M
MicroservicesArchitectural style where applications are composed of small, independent services
O
ObservabilityAbility to understand system behavior through logs, metrics, and traces
R
Rate LimitingControlling the number of requests a client can make in a time period Retry Logic
Automatically retrying failed operations with backoff strategies
S
Service MeshInfrastructure layer that handles service-to-service communication SLO (Service Level Objective)
Target level of service reliability
T
ThroughputNumber of requests processed per unit of time
V
Vertical ScalingIncreasing resources (CPU, memory) of existing instances