fixes uncontrolled data sending in case of direct propagation of request from requester #595
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This PR provide a partial fix for #514 and reintroduce usage of
LimitableRequestPublisheras of its initial design.At a moment all connected
LimitableRequestPublisherreceives the same request size as from the connection. It means that upstream still an overflow UnboundProcessor but with less probability (it can happen in case we have super many requestChannel/requestStream connections which infinitely send data)In the future PRs we have to revise the implementation of UnboundedProcessor in order to have proper guarantees on overflow prevention.
Signed-off-by: Oleh Dokuka shadowgun@i.ua