I'm getting a lot of those when trying to replicate two huge volumes (80 and 180 gigs)

Failed rebuilding replica with Address 10.42.241.8:10020: proxyServer=10.42.189.18:8501 destination=10.42.189.18:10000: failed to add replica <tcp://10.42.241.8:10020> for volume: rpc error: code = Unavailable desc = failed to sync files [{FromFileName:volume-snap-f62bdc43-04ee-4fcb-9430-f23df30c8c0a.img ToFileName:volume-snap-f62bdc43-04ee-4fcb-9430-f23df30c8c0a.img ActualSize:87328817152} {FromFileName:volume-snap-f62bdc43-04ee-4fcb-9430-f23df30c8c0a.img.meta ToFileName:volume-snap-f62bdc43-04ee-4fcb-9430-f23df30c8c0a.img.meta ActualSize:0} {FromFileName:volume-snap-4d967969-319b-4549-8f3a-59163f839605.img ToFileName:volume-snap-4d967969-319b-4549-8f3a-59163f839605.img ActualSize:3002368} {FromFileName:volume-snap-4d967969-319b-4549-8f3a-59163f839605.img.meta ToFileName:volume-snap-4d967969-319b-4549-8f3a-59163f839605.img.meta ActualSize:0}] from <tcp://10.42.189.18:10062>: rpc error: code = Unavailable desc = replica <tcp://10.42.189.18:10062> failed to send file volume-snap-f62bdc43-04ee-4fcb-9430-f23df30c8c0a.img to 10.42.241.8:10024: failed to send file volume-snap-f62bdc43-04ee-4fcb-9430-f23df30c8c0a.img to 10.42.241.8:10024: rpc error: code = Unavailable desc = error reading from server: read tcp 10.42.241.8:43646->10.42.189.18:10064: read: connection reset by peer

followed by

lost track of the corresponding snapshot info inside volume engine

Should i be scared?