Styx has a configurable retry policy that is configured globally for the Styx server. It attempts to re-send requests under certain failure conditions, specifically when:
- A TCP connection establishment for the chosen origin fails.
- A connection has been pending (waiting at the connection pool) for
the maximum allowed time (
pendingConnectionTimeoutMillis). - A connection pool's pending connection queue is full. However, this is unlikely unless Round Robin load balancing strategy is being used.
The number of times Styx will retry a request is determined by the value of
count in the configuration below. The default count is 1.
Styx provides a pluggable mechanism for retry policy implementations, so
a different implementation can be chosen with the class attribute,
but the only implementation bundled with Styx is
com.hotels.styx.client.retry.RetryPolicyFactory
retrypolicy:
policy:
factory:
class: "com.hotels.styx.client.retry.RetryPolicyFactory"
config: {count: 2}