dont write to routes cache if None #736
Merged
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This fixes an issue where the Proxy cached
None
route_info values. This meant that hitting the proxy before a backend reached the Ready state would cause the Proxy to cacheNone
for the backend's route info and make it impossible to reach the backend on subsequent requests - even after the backend has reached a Ready state.Wanted to get this out quickly, so I'm not doing it as part of this PR - but we should differentiate between backends that are
410 Gone
, backends that are404 Not Found
, and backends that are still starting up (possibly a425 Too Early
or a503 Service Unavailable
?)