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Chris LuandGitHub
cf0dba334c
s3api: no filer failover after fn has consumed part of a response withFilerClientFailover replays fn verbatim on the next filer, so a filer that died mid-stream followed by a healthy peer returned success with the callback's closure-captured accumulator holding the dead filer's prefix twice; the per-attempt accumulator in listWithRetry could not close this, because the replay happens inside a single attempt. Track delivery on the connection handed to fn: once a unary reply or streamed message has reached the callback, surface the transport error unwrapped instead of failing over, and let callers replay from a clean slate. A filer that fails before delivering anything fails over exactly as before.