[2285] in Athena Bugs
Re: timed
daemon@ATHENA.MIT.EDU (Ezra Peisach)
Thu May 25 10:18:37 1989
To: <qjb@ATHENA.MIT.EDU>
Cc: rel-eng@ATHENA.MIT.EDU, rt-testers@ATHENA.MIT.EDU, bugs@ATHENA.MIT.EDU,
In-Reply-To: Your message of Thu, 25 May 89 01:19:41 -0400.
Date: Thu, 25 May 89 10:17:47 EDT
From: Ezra Peisach <epeisach@ATHENA.MIT.EDU>
>I got a time out of bounds error that was real. Soup was 3.5
>seconds out of sync with kerberos. This isn't supposed to
>happen anymore, right?
Timed is an interesting program. It does not provide continual updates,
but instead, approximately every five minutes, the master server sends
to every workstation an adjustment time and the workstation compensates.
I have seen that depending on the load of you workstation, your clock
may drift up to about thirty seconds during this time interval. If
you'll notice, the time on your machine is now only approximately, 13ms
off. (Note that I'm doing multi-compilations at te moment and storing on
local disk and my time is now drifting).
flakey% timedc c soup kerberos
time on SOUP.MIT.EDU is 259 ms. ahead of time on flakey
time on KERBEROS.MIT.EDU is 272 ms. ahead of time on flakey
In the future, wait to see what the load on your machine is and wait a
few minutes to see if it gets better. I'm sure you will notice that in
general, you will stay within 5 seconds of kerberos, unless heavilly
loaded, which is definitely within the 5 minutes kerberos time frame.
Ezra
