Xiao Lou's Tech Notes

Feb 27, 2021 · Backend Development

Why Dubbo 2.7.x Can’t Return Implicit Parameters from Provider to Consumer

An in‑depth analysis reveals that Dubbo 2.7.x fails to propagate provider‑side implicit parameters back to the consumer because the new AsyncRpcResult/AppResponse architecture discards attachments, a change introduced for better async support, effectively making this behavior a bug in the 2.7 series.