server: return unavailable when PD is not serving - #11066

server: return unavailable when PD is not serving#11066

ti-chi-bot[bot] merged 3 commits into

tikv:mastertikv/pd:masterfrom

rleungx:codex/server-not-serving-unavailablerleungx/pd:codex/server-not-serving-unavailableCopy head branch name to clipboard