When accessing onion service with no fetchable descriptor, Tor sits around until timeout rather than hanging up
Running Tor git master, and trying to connect to an onion address that I just made up (nothing has ever been there):
$ torify telnet qiu3onp7v7z25u5i.onion 80 telnet: Unable to connect to remote host: Connection timed out
And on the Tor log I see
Sep 25 23:54:17.776 [notice] Tried for 120 seconds to get a connection to qiu3onp7v7z25u5i:80. Giving up. (waiting for rendezvous desc)
That is, it took 120 seconds to fail.
Compare to when using Tor release-0.2.5:
$ torify telnet qiu3onp7v7z25u5i.onion 80 telnet: Unable to connect to remote host: No route to host
and the Tor log says
Sep 26 00:06:37.515 [notice] Closing stream for 'qiu3onp7v7z25u5i.onion': hidden service is unavailable (try again later).
In the Tor 0.2.5 case, I got my answer in 5-10 seconds: it tried each of the hsdirs, and when the last one said 404, it hung up on the stream. In the Tor master case, it knew the answer in 5-10 seconds, but it just let my stream sit there doing nothing until the timeout arrived.