I have preview, hook mgslist installed, more than 7500 mails in my inbox, 3 servers serving 1000 users. And nothing bad for the moment..
xcache as accelerator php5 debian lenny last versions of horde/IMP cyrus imap 2.3.14 Dom 2009/6/8 Tornoci Laszlo <[email protected]> > Webmaster Extraordinaire wrote: > >> I think we have the same problem up to and including the top results. >> Ours is caused by enabling message preview. We discovered the problem >> after I went through message by message in a mailbox, found a 2 MB message >> (it was an error log), removed it and the mailbox opened significantly >> faster. >> >> When we switch versions back to 3.1.1 the mailbox loads quickly and with >> no problems. So something changed somewhere on the way with message >> preview. >> >> Erik >> >> --- On Thu, 6/4/09, Tornoci Laszlo <[email protected]> wrote: >> >>> I have a Horde/IMP system that behaves strangely since I >>> upgraded from 3.1.5/4.1.5 to 3.3.4/4.3.4. I have about 400 >>> users with 50-70 concurrent sessions usually. The IMAP >>> mailstore (Cyrus) and the MTA are on separate boxes. The >>> system is dual Xeon (quad core) 2GHz, 2GB RAM. >>> >>> We had excellent response times before the upgrade. The >>> problem is, we still have excellent response times >>> (practically instantaneous mailbox lists with > 3000 >>> mails in one folder) most of the time, BUT sometimes for >>> long periods of time, I get miserable response times (30-80 >>> sec waiting) for the same large mailbox to be listed. "top" >>> show the http process to shoot up to 100% cpu while waiting, >>> but nothing else remarkable. Restarting http or mysqld >>> doesn't help. Logging in is not slow. The larger a mailbox, >>> the worse the problem is. >>> After some time, response times get back to normal. >>> >>> It's not the IMAP box. Using IMAP clients, direct access to >>> the IMAP box shows absolutely no difference. >>> >>> Access is always fine if I use the "dynamic" mode. This >>> problem appears only if using the "traditional" mode. >>> >> > Hi, let me summarize the suggestions I got, and my experience with them: > 1. disable Horde Alarms: it didn't help me > 2. disable/limit mailbox sorting on anything other than arrival time: > also didn't help me > 3. disable preview: since I disabled it, I don't have the slowdowns, so I > believe this is the problem. I can confirm what Erik says, I had the preview > enabled before (with Horde/Imp 3.1.5/4.1.5) and never had a problem like > this. So indeed something must have been changed in the preview code that > eats system resources. I'll wait a few days, just to make sure I won't > experience any slowdowns, and I'll report this as a bug. > > > Yours: Laszlo > > > -- > IMP mailing list - Join the hunt: http://horde.org/bounties/#imp > Frequently Asked Questions: http://horde.org/faq/ > To unsubscribe, mail: [email protected] > -- Dominique LALOT Ingénieur Systèmes et Réseaux http://annuaire.univmed.fr/showuser.php?uid=lalot -- IMP mailing list - Join the hunt: http://horde.org/bounties/#imp Frequently Asked Questions: http://horde.org/faq/ To unsubscribe, mail: [email protected]
