Subject: Pine 4.30/4.44 + Cyrus IMAPD Timeouts

From: Jason Rashaad Jackson <[email-masked]>
Date: Fri, 8 Nov 2002 10:58:03 -0500

Hello:

  Our PINE users are experiencing extreme difficulties trying to use PINE to
  access their e-mail accounts.  On occasion, the program will lock up,
  displaying "server timeout...15 seconds" which will continue until PINE
  asks to break the connection.  There seems to be no rescue from this
  point, and there's nothing to do but exit the program and restart it.  We
  are running rapidly out of ideas, and would appreciate any help you could
  offer.  Here are the facts:

Client facts - University of Washington PINE
========
- same issue with different versions of pine (4.30, 4.33, 4.44)
- same issue with pine running on different systems  (Both our login server
  as well as login.itd.umich.edu)
- Telemetry reports show only 'tcptimeout 15...30...etc' when errors occur.
- happens both with kerberized imap connections, and with plain-text
authentication (inside an ssltunnel)
- no problems with other clients (Mulberry, fetchmail, IMP)

Server facts - Carnegie Mellon Cyrus IMAP daemon v.1.6.22
========
- CAPABILITY - CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ NAMESPACE
  UIDPLUS X-NON-HIERARCHICAL-RENAME NO_ATOMIC_RENAME LOGINDISABLED
  AUTH=KERBEROS_V4 UNSELECT
- bigbrother checks periodically for active imap connections, no complaint
- cpu usage above 450 on server will issue an alert. No alerts have been
issued, so CPU utilizaiton is not a likely candidate
- Logs show successful mailbox opening, no errors or further information
  when timeouts occur

  Any other information you need I can furnish.  We're at our wits end.
  Thanks!

--
J. Rashaad Jackson                            UNIX Systems Administrator
3556 Samuel T. Dana Building                            (W) 734.615.1422
Ann Arbor, MI 48109                                     (M) 734.649.6641
http://www.umich.edu/~jrashaad                          (F) 734.763.8965
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From: Chris Devers <[email-masked]>
Date: Wed, 20 Nov 2002 10:35:45 -0500 (EST)

On Fri, 8 Nov 2002, Jason Rashaad Jackson wrote:

>   point, and there's nothing to do but exit the program and restart it.

When accessing mail via IMAP and a laggy network connection, I have
sometimes seen the same thing. A decent recovery option is to try to
switch to a different mail folder, which seems to re-establish your
connection to the server. It's not a great solution, but it's better
than quitting & restarting Pine from scratch...

> - Logs show successful mailbox opening, no errors or further information

And, by way of comparison, you do get more info when timeouts don't occur?

-- 
Chris Devers    [email-masked]