[1324] in Athena Bugs
Re: success on sending zephyr notices
daemon@ATHENA.MIT.EDU (John T Kohl)
Mon Nov 7 09:40:21 1988
Date: Mon, 7 Nov 88 09:39:59 EST
From: John T Kohl <jtkohl@ATHENA.MIT.EDU>
To: tjcoppet@ATHENA.MIT.EDU
Cc: bugs@ATHENA.MIT.EDU, zephyr-bugs@ATHENA.MIT.EDU
I have noticed sometimes that after a user logs out, there is a delay
between the time zlocate says he is not logged in and the time zwrite
will fail. Normally this time may only be a matter of seconds or minutes
"Logging out" from zephyr and canceling subscriptions are two separate
operations, which is why this can happen.
Sending a logout message is permitted if you are not authenticated, as
long as your IP address is correct for the location you are canceling.
Canceling subscriptions, however, is not permitted unless you are
authenticated. Depending on the order of destroying tickets,
expiration, etc., this may not always be possible (we might be able to
modify zwgc to hold onto tickets, however).
If you write to a user who is logged out, the server should notice
within about a minute that the user's zwgc is not responding, and flush
the client's subscriptions. I cannot explain why OLC was able to
repeatedly send to him without error.
