Upstreams
An upstream is a logical abstraction of a set containing one or more upstream addresses. It is required in services to specify where requests flow to and how they are distributed. In general, an upstream has a one-to-many (1:N) relationship with a route.
This example shows route configurations, where the same upstream address is shared across three different routes:
Upstream Health Checks
API7 Enterprise provides active and passive health checks to probe if upstream nodes are online (healthy). Unhealthy upstream nodes will be ignored until they recover and are deemed healthy again. For details about how to enable health checking, see enable health checking.