DNSE-218 — Timeout expired when reading DNS query or response
Common failure message for timeout expiration, or network I/O error in several situations (states):
rs_read_rep: TCP response partially read, waiting for next message.
rs_rep_block: TCP response sending to client blocked, waiting for channel.
rs_read_req: TCP connection from client accepted, waiting for data.
rs_idle: TCP request processed, waiting for new one.
Particular request will fail.