recommend fallback policy
cache <- circuit <- retry <- runner
when error happened from runner, retry it firstly
runner
retry
if retry finally failed, the circuit breaker will open, later requests in a duration will not be executed, and just throw the temp not available error
circuit breaker
temp not available error
if the circuit is open, cache will catch the error, and try to get value from previous successful cache
circuit
cache
if there is no successful cache before, throw the original error (maybe wrapper with [[TemporaryUnAvailableError]]) directly
5.15.0
recommend fallback policy
cache <- circuit <- retry <- runnerwhen error happened from
runner,retryit firstlyif
retryfinally failed, thecircuit breakerwill open, later requests in a duration will not be executed, and just throw thetemp not available errorif the
circuitis open,cachewill catch the error, and try to get value from previous successfulcacheif there is no successful cache before, throw the original error (maybe wrapper with [[TemporaryUnAvailableError]]) directly