Re: upgrading murder to v2.3.11

[Andrew Morgan]

On Mon, 17 Mar 2008, Andrew Morgan wrote:

 So far the new frontend seems to be working fine.  However, I have noticed a 
 few errors in the logs:

 Mar 17 17:00:43 cyrus-fe3 imaps[24038]: Fatal error: Lost connection to 
 selected backend
 Mar 17 17:02:18 cyrus-fe3 imap[24565]: Fatal error: Lost connection to 
 selected backend
 Mar 17 17:07:07 cyrus-fe3 imaps[29951]: Fatal error: Lost connection to 
 selected backend

 This particular message is generated in a few different locations in the 
 code, so I'm not sure of the exact cause.  I'll probably modify the code to 
 uniquely indicate which part of the code generated this error.

 Has anyone seen this error message before?

Well now I feel silly.  I found matching log entries in the backends 
saying:

Mar 17 17:07:07 cyrus-be1 imap[12514]: idle for too long, closing connection

I am using the default timeout value in imapd.conf (30 minutes) on both 
frontends and backends.  I think I will increase the timeout on the 
backends to 35 minutes, unless anyone has other suggestions.

Andy

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upgrading murder to v2.3.11

[Andrew Morgan]

I'm close to finishing the upgrade of our Cyrus Murder from v2.2 to v2.3. 
The backends and mupdate master are running v2.3.11 now, and I've just 
upgraded one of our frontends to v2.3.11.


I wanted to make sure that our frontends never return a referral to a 
backend (Pine seems to trigger this a lot).  Attached is a patch which 
adds an option to imapd.conf to disable mailbox referrals.  It is based on 
another person's patch I got from this list.


So far the new frontend seems to be working fine.  However, I have noticed 
a few errors in the logs:


Mar 17 17:00:43 cyrus-fe3 imaps[24038]: Fatal error: Lost connection to 
selected backend
Mar 17 17:02:18 cyrus-fe3 imap[24565]: Fatal error: Lost connection to selected 
backend
Mar 17 17:07:07 cyrus-fe3 imaps[29951]: Fatal error: Lost connection to 
selected backend

This particular message is generated in a few different locations in the 
code, so I'm not sure of the exact cause.  I'll probably modify the code 
to uniquely indicate which part of the code generated this error.


Has anyone seen this error message before?

Andydiff -ur cyrus-imapd-2.3.11/imap/imapd.c cyrus-imapd-2.3.11.new/imap/imapd.c
--- cyrus-imapd-2.3.11/imap/imapd.c	2007-11-27 07:31:28.0 -0800
+++ cyrus-imapd-2.3.11.new/imap/imapd.c	2008-03-14 15:57:45.0 -0700
@@ -5771,7 +5771,11 @@
 		   struct auth_state *auth_state, int (*proc)(),
 		   void *rock, int force);
 
-if (listopts  LIST_REMOTE) supports_referrals = !disable_referrals;
+if (listopts  LIST_REMOTE) {
+	if (!config_getswitch(IMAPOPT_PROXYD_DISABLE_MAILBOX_REFERRALS)) {
+	supports_referrals = !disable_referrals;
+	}
+}
 
 /* Ignore the reference argument?
(the behavior in 1.5.10  older) */
diff -ur cyrus-imapd-2.3.11/lib/imapoptions cyrus-imapd-2.3.11.new/lib/imapoptions
--- cyrus-imapd-2.3.11/lib/imapoptions	2007-10-18 11:14:48.0 -0700
+++ cyrus-imapd-2.3.11.new/lib/imapoptions	2008-03-14 13:45:09.0 -0700
@@ -765,6 +765,10 @@
connections that these referrals would cause, thus resulting in a higher
authentication load on the respective backend server. */
 
+{ proxyd_disable_mailbox_referrals, 0, SWITCH }
+/* Set to true to disable the use of mailbox-referrals on the
+   proxy servers. */
+
 { proxyservers, NULL, STRING }
 /* A list of users and groups that are allowed to proxy for other
users, separated by spaces.  Any user listed in this will be

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