[qmailtoaster] R: [qmailtoaster] Courier IMAP slowdown
I add... the Linux IMAP Mail Server is in the DMZ lan, joined with a 100Mb FD connection to the LAN by passing a Linux iptables Firewall... this maybe the bottleneck?? See ya, Francesco You didn't tell what kind of server and resources your machine has. One of my suggestions could be to look at your memory and CPU and decide if you need to upgrade. The machine is a HP Proliant ML150G3 Server, Core 2-Duo 2.0 Ghz (about) and a Sata Raid-1, mirroring. I have got 3 Gb of memory. Thank you, see ya! Francesco winmail.dat- QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[qmailtoaster] R: [qmailtoaster] Courier IMAP slowdown
You didn't tell what kind of server and resources your machine has. One of my suggestions could be to look at your memory and CPU and decide if you need to upgrade. The machine is a HP Proliant ML150G3 Server, Core 2-Duo 2.0 Ghz (about) and a Sata Raid-1, mirroring. I have got 3 Gb of memory. Thank you, see ya! Francesco winmail.dat- QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [qmailtoaster] Courier IMAP slowdown
Bill Kwok wrote: Hi Eric, What's the pros and cons of Dovecot? Will it be worthwhile to replace Dovecot with Courier-IMAP in standard QMT? Thx. Best regards, Bill On Sun, Sep 7, 2008 at 12:27 AM, Eric Shubert [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: Jake Vickers wrote: Service, ColliniConsulting S.a.s. wrote: Hello, i have got a Qmail server with about 30 users working with IMAP mailstore with about 30/35Gb of total mail amount. When the Server works hevily, after some time, the IMAP Server socket start answer slowly to request, and all users experience slowdown with the service. From the Linux consolle, if i enter: telnet localhost 143, the cursor blink for some seconds (sometimes about 40/50 seconds) and only after this time the Imap Banner appear. How can i solve this problem? I raised up the tcpsoftlimit in the run script of the /var/service/imapd folder but nothing happened... Thank you in advance for your kind interest, cheers! Look into tuning the courier imap control files. They're in /etc. You may also need to look at your data connection(s) and filesystem. I'd certainly look at tuning first. Where's the bottleneck? If that proves unsuccessful, you might try dovecot in place of courier-imap. I'm running dovecot (http://dovecot.org http://dovecot.org/) with some high volume mailboxes on a couple toasters with good response times. Not quite that many users, but I doubt that would be an issue. -- -Eric 'shubes' - QmailToaster hosted by: VR Hosted http://www.vr.org http://www.vr.org/ - To unsubscribe, e-mail: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] The only cons I saw was last auth date would no be present in database. Regards - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[qmailtoaster] Courier IMAP slowdown
Hello, i have got a Qmail server with about 30 users working with IMAP mailstore with about 30/35Gb of total mail amount. When the Server works hevily, after some time, the IMAP Server socket start answer slowly to request, and all users experience slowdown with the service. From the Linux consolle, if i enter: telnet localhost 143, the cursor blink for some seconds (sometimes about 40/50 seconds) and only after this time the Imap Banner appear. How can i solve this problem? I raised up the tcpsoftlimit in the run script of the /var/service/imapd folder but nothing happened... Thank you in advance for your kind interest, cheers! Francesco
Re: [qmailtoaster] Courier IMAP slowdown
Service, ColliniConsulting S.a.s. wrote: Hello, i have got a Qmail server with about 30 users working with IMAP mailstore with about 30/35Gb of total mail amount. When the Server works hevily, after some time, the IMAP Server socket start answer slowly to request, and all users experience slowdown with the service. From the Linux consolle, if i enter: telnet localhost 143, the cursor blink for some seconds (sometimes about 40/50 seconds) and only after this time the Imap Banner appear. How can i solve this problem? I raised up the tcpsoftlimit in the run script of the /var/service/imapd folder but nothing happened... Thank you in advance for your kind interest, cheers! Look into tuning the courier imap control files. They're in /etc. You may also need to look at your data connection(s) and filesystem.
Re: [qmailtoaster] Courier IMAP slowdown
Jake Vickers wrote: Service, ColliniConsulting S.a.s. wrote: Hello, i have got a Qmail server with about 30 users working with IMAP mailstore with about 30/35Gb of total mail amount. When the Server works hevily, after some time, the IMAP Server socket start answer slowly to request, and all users experience slowdown with the service. From the Linux consolle, if i enter: telnet localhost 143, the cursor blink for some seconds (sometimes about 40/50 seconds) and only after this time the Imap Banner appear. How can i solve this problem? I raised up the tcpsoftlimit in the run script of the /var/service/imapd folder but nothing happened... Thank you in advance for your kind interest, cheers! Look into tuning the courier imap control files. They're in /etc. You may also need to look at your data connection(s) and filesystem. I'd certainly look at tuning first. Where's the bottleneck? If that proves unsuccessful, you might try dovecot in place of courier-imap. I'm running dovecot (http://dovecot.org) with some high volume mailboxes on a couple toasters with good response times. Not quite that many users, but I doubt that would be an issue. -- -Eric 'shubes' - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [qmailtoaster] Courier IMAP slowdown
You didn't tell what kind of server and resources your machine has. One of my suggestions could be to look at your memory and CPU and decide if you need to upgrade. Thanks John - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [qmailtoaster] Courier IMAP slowdown
Hi Eric, What's the pros and cons of Dovecot? Will it be worthwhile to replace Dovecot with Courier-IMAP in standard QMT? Thx. Best regards, Bill On Sun, Sep 7, 2008 at 12:27 AM, Eric Shubert [EMAIL PROTECTED] wrote: Jake Vickers wrote: Service, ColliniConsulting S.a.s. wrote: Hello, i have got a Qmail server with about 30 users working with IMAP mailstore with about 30/35Gb of total mail amount. When the Server works hevily, after some time, the IMAP Server socket start answer slowly to request, and all users experience slowdown with the service. From the Linux consolle, if i enter: telnet localhost 143, the cursor blink for some seconds (sometimes about 40/50 seconds) and only after this time the Imap Banner appear. How can i solve this problem? I raised up the tcpsoftlimit in the run script of the /var/service/imapd folder but nothing happened... Thank you in advance for your kind interest, cheers! Look into tuning the courier imap control files. They're in /etc. You may also need to look at your data connection(s) and filesystem. I'd certainly look at tuning first. Where's the bottleneck? If that proves unsuccessful, you might try dovecot in place of courier-imap. I'm running dovecot (http://dovecot.org) with some high volume mailboxes on a couple toasters with good response times. Not quite that many users, but I doubt that would be an issue. -- -Eric 'shubes' - QmailToaster hosted by: VR Hosted http://www.vr.org - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
