ANSWER_GRACE

How long a forward's stream stays open past its deadline for the owner's answer, and how long the router waits for that answer past it (HttpClusterChannel.answerGrace). The owner answers about the deadline, as it withdraws a command still queued at its wait's deadline: that answer, not executed, is the forward's outcome rather than an unknown one, so a caller waits at most this long past a forward's deadline. A request timing out resets its stream (RST_STREAM), and the internal port, as any Netty server, closes a connection on which it reads more than 200 resets in 30 seconds, failing every request on it: so a stream is not reset at the very deadline the owner answers at, only when the owner has not answered ANSWER_GRACE after it.