Re: [tor-relays] Tor not releasing port on shutdown?

[Roger Dingledine <arma@xxxxxxx>]

On Thu, Mar 31, 2011 at 11:55:22AM +0100, Geoff Down wrote:
> > >> the most recent times I have tried to restart Tor after a 'killall
> > >> -INT' I have been presented with the following error:
> > >> "[warn] Could not bind to 0.0.0.0:9001: Address already in use. Is Tor
> > >> already running?"
> > >>
> > >> Update: after running those commands, Tor was able to start. Why the
> > >> delay? Is this normal?
> > > 
> > By default Tor takes 30 seconds before it really exits, you can modify
> > this "timeout" by specifying ShutdownWaitLength in your torrc.
>
> Yes, this was after the 30 second wait and tor disappearing from a list
> of running processes - but thank you both anyway.

A mystery. My guess is either there's something special about your OS
X version, or you're doing it wrong. :)

One approach to debugging further might be to use Tor's PidFile option.
Tor will create a file when it starts, and remove the file when it
exits cleanly.

You might like Debian's init script for examples of starting and
stopping Tor:
https://gitweb.torproject.org/debian/tor.git/blob_plain/master:/debian/tor.init

See e.g. check_torpiddir() and wait_for_deaddaemon().

Hope that helps,
--Roger

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