[imp] Anyone else getting long delays after login, then things work fine until new imap connections opened? (cyrus imap 2.3.x)

[Yoseff Francus]

You beat me to this. Running netbsd 3.1 horde-webmail; apache 2.2.4, php 
5.1.4. See in maillog that I have logged in and then the httpd server 
starts to use 90+ % of the cpu and can't get any further.

lsof on the process does not show any URI it is trying to open, the files 
it does have open all look ok. Nothing in the horde or php or apache logs 
all which are set to debug level.

I have a second machine with the same setup where it all does work which 
makes it even more puzzling.

On Wed, 27 Jun 2007, Darrell Budic wrote:

> Strange problem I havn't been able to track down here: After logging
> in to Horde, the web browser clears the screen, then things pause for
> 30 seconds to a few minutes, and then my sidebar and horde portal
> page come up normally, and IMP runs fine for a while. If you stay
> logged in long enough for your imap sessions to time out, there can
> be another long pause, then things run normally for a while. Very
> odd, very annoying. This install was working fine for a while, not
> sure which update screwed me up, and I havn't been able to roll back
> and resolve it.
>
> Specific questions:
>
> Anyone seen this and fixed it? How?
> Anyone using cyrus imap 2.3.x and working correctly?
>
> Versions:
>
> Apache: 1.3.37 (slackware 11 package)
> php: 4.4.7 (slack 11 package, seems to have c-client 2004g)
> also tried
> php: 5.2.3 (own compile against c-client 2006f) (with mcrypt)
> imap: cyrus 2.3.x (tried 2.3.1 -> 2.3.8, currently 2.3.8)
> horde: 3.1.4
> Imp: H3 4.1.4
> Ingo: H3 1.1.3
> Jeta: H3 1.0
> Mimp: H3 1.0.1
> Passwd: H3 3.0.1
> Turba: H3 2.1.4
>
> Important config info:
>
> Using a composite auth driver to flip between Imp and MIMP auth, from
> the wiki. Tried switching back to pure IMP, no change.
>
> Specific things I've tried:
>
> Various versions of cyrus imap, no change.
> Monitoring IMAP connections to server, it looks like it auths fine,
> and quickly pulls info from the imap server, then hangs somewhere in
> php processing before returning.
> No errors are logged by apache, imap, or php. Turning debugging on in
> horde also produces no relevant errors. Turning full debugging on in
> php produces no relevant errors.
> Horde logs the login immediately after the page is submitted, then
> things pause before displaying the portal page.
> I've tried c-client version from 2004g -> 2006f in php 5.2.3, no
> change in effects.
> Cleaned up a bunch of old preference data and optimized my mysql
> tables, ensured they were all up to date.
> Test imap logins (from imp/test.php) return immediately.
> Installed eaccellerator on php 4.4.7, no changes.
> Been through the FAQ, searched the mailing list & web, and the wiki,
> can't find reports of anything quite like this.
> Checked my configs, as far as I can tell, they are correct for my
> setup. Nothing useful in the performance tuning doc, either.
> The server is not loaded, and has lots of free ram.
> Tore out some hair, no help there, alas.
>
> Any ideas or comments appreciated, I'm running out of ideas for this
> one... Knowing if anyone was successfully running a similar config
> would be useful to me, I'm preparing a new bit of hardware to test
> with too.
>
> Thanks!
>
>   -Darrell
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