>> > SquirrelMail 1.4.6
>> > PHP 4.4.4
>> > UWIMAPD (IMAP4rev1 2004.357-cpanel)
>> > Apache 1.3.37
>> > CentOS 4.4
>> > Our webserver runs as nobody.
>> > IMAP Server Address: 127.0.0.1
>> >
>> > Many plugins, including: Auto Complete; Folder Synch; Select Range;
>> etc.
>> > I ran configtest, and it reports: "Congratulations, your SquirrelMail
>> > setup looks fine to me!"
>> >
>> > My SquirrelMail has become so painfully slow that it is often
>> > unusable, and often it fails and displays "page not found" error pages
>> > in the folder list frame, the message list frame, or both frames.
>> >
>> > SquirrelMail was fine before about 3 or 4 weeks ago, and I have made
>> > no changes to SquirrelMail in that time. I rent space on a shared web
>> > server, and I'm sure there have been changes to the server config in
>> > that time. However, the server loads are normal and the support guys
>> > can't find anything to explain the SM slowness.
>> >
>> > The problem is not with any individual mail account. This problem
>> > exists no matter which mail account I use.
>> >
>> > Please give me some idea of what the problem could be, or what to
>> > check, or what server config/admin I should ask the web host tech
>> > support to check. Thanks for any help.
>>
>> 1. man top. Check apache processes.
>
> What is "man top"? And are there specific apache processes that I
> should ask the web host's tech support to check, or direct them to
> check for certain things?
http://unixhelp.ed.ac.uk/CGI/man-cgi?top
>> 2. Make sure that cpanel updates haven't turned off server side sorting
>> in
>> SquirrelMail
>
> I still have the following settings in my own config:
> Use server-side sorting Yes
> Use server-side thread sorting Yes
If you don't need thread sorting, turn it off
>> 3. Make sure that dns and indent services work on web server. uw checks
>> client's reverse dns address and indent by default.
>
> Is there any way I can test this, or do I need to contact the web
> host's tech support?
you could time fsockopen() calls (configtest.php.diff) and compare them
with some other test server. I get 0.5 msec with random spikes to
10-15msec on localhost.
Support people can check mail logs. I think uw logs indent failures.
SquirrelMail 1.5.1 info plugin can be used to time other imap commands.
>> 4. Check session directory usage
>
> Will the web host's tech support know what that means when I make that
> request? Should I ask them to check for anything in particular?
check session file sizes. If session files are big, it might mean trouble.
>> 5. If you use imapproxy, check proxy debugging options.
>
> Can I check if they use imapproxy, or must I ask them?
>
> One further piece of information that might help someone to solve this
> puzzle: when I use the shared SquirrelMail installation that comes as
> part of cPanel, it seems somewhat faster than my own installation and
> doesn't get the "page not found" errors. That shared installation is
> also 1.4.6, but is just the basic install with no extra plugins. My
> own installation has many plugins, and my config options are somewhat
> different.
Show list of enabled plugins. Turn off all plugins and enable them one by
one.
--
Tomas
--- configtest.php.orig 2006-09-25 21:40:32.939022832 +0300
+++ configtest.php 2006-09-25 21:47:28.559838864 +0300
@@ -271,6 +271,7 @@
*/
echo "Checking IMAP service....<br />\n";
+$start_time = microtime(true);
/** Can we open a connection? */
$stream = fsockopen( ($use_imap_tls?'tls://':'').$imapServerAddress, $imapPort,
$errorNumber, $errorString);
@@ -279,6 +280,8 @@
"Server error: ($errorNumber) ".
htmlspecialchars($errorString));
}
+$end_time = microtime(true);
+echo 'Connect time: ' . round(($end_time - $start_time)*1000, 3) . " msec<br><br>\n";
/** Is the first response 'OK'? */
$imapline = fgets($stream, 1024);-------------------------------------------------------------------------
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