Re: [Dovecot] imap-login processes

2008-05-24 Thread Bryan Polk
On Sun, 25 May 2008, Timo Sirainen wrote: On Sun, 2008-05-25 at 05:08 +0300, Timo Sirainen wrote: On Mon, 2008-05-19 at 12:06 -0400, Bryan Polk wrote: On Fri, 16 May 2008, Evaggelos Balaskas wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I hope something like this could help you : #

Re: [Dovecot] imap-login processes

2008-05-24 Thread Timo Sirainen
On Sun, 2008-05-25 at 05:08 +0300, Timo Sirainen wrote: > On Mon, 2008-05-19 at 12:06 -0400, Bryan Polk wrote: > > On Fri, 16 May 2008, Evaggelos Balaskas wrote: > > > > > -BEGIN PGP SIGNED MESSAGE- > > > Hash: SHA1 > > > > > > I hope something like this could help you : > > > > > > # Auth

Re: [Dovecot] imap-login processes

2008-05-24 Thread Timo Sirainen
On Mon, 2008-05-19 at 12:06 -0400, Bryan Polk wrote: > On Fri, 16 May 2008, Evaggelos Balaskas wrote: > > > -BEGIN PGP SIGNED MESSAGE- > > Hash: SHA1 > > > > I hope something like this could help you : > > > > # Authentication Cache > > auth_cache_size = 10240 > > auth_cache_ttl = 18000 >

Re: [Dovecot] imap-login processes

2008-05-19 Thread Bryan Polk
On Fri, 16 May 2008, Evaggelos Balaskas wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I hope something like this could help you : # Authentication Cache auth_cache_size = 10240 auth_cache_ttl = 18000 This may have done the trick! The number of imap-login processes has been holding a

Re: [Dovecot] imap-login processes

2008-05-17 Thread Timo Sirainen
On Fri, 2008-05-16 at 14:47 -0400, Bryan Polk wrote: > > It would help to know what these extra processes are doing. > Unfortunately > > there's no simple way to do that.. Maybe writing a script that trusses > the > > processes for a few seconds and then seeing what it shows? > > To truss each i

Re: [Dovecot] imap-login processes

2008-05-16 Thread Evaggelos Balaskas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I hope something like this could help you : # Authentication Cache auth_cache_size = 10240 auth_cache_ttl = 18000 Bryan Polk wrote: > On Fri, 16 May 2008, Frank Elsner wrote: > >> >> Do you have a Web-Interface like SquirrelMail or Horde on the same

Re: [Dovecot] imap-login processes

2008-05-16 Thread Bryan Polk
On Fri, 16 May 2008, Frank Elsner wrote: Do you have a Web-Interface like SquirrelMail or Horde on the same host? Our SquirrelMail shows up in this fashion. Oh, yeah that would be it. Thanks :)

Re: [Dovecot] imap-login processes

2008-05-16 Thread Frank Elsner
On Fri, 16 May 2008 14:47:05 -0400 (EDT) Bryan Polk wrote: > On Fri, 16 May 2008, Joe Allesi wrote: > > > We had this same problem, and switching to high-performance mode helps. > > However, finding out which user or application is logging in, and > > controlling the end-user is the only way to fi

Re: [Dovecot] imap-login processes

2008-05-16 Thread Bryan Polk
On Fri, 16 May 2008, Joe Allesi wrote: We had this same problem, and switching to high-performance mode helps. However, finding out which user or application is logging in, and controlling the end-user is the only way to fix it. In our case it was a multi-threaded application that used IMAP (exc

Re: [Dovecot] imap-login processes

2008-05-16 Thread Timo Sirainen
On May 16, 2008, at 8:39 PM, Joe Allesi wrote: "I tried switching to high-performance mode yesterday.. It seemed to end up with sort of the same results, though harder to diagnose. Each process I guess ended up hitting the login_process_size = 64 max and then stopped responding." We had

Re: [Dovecot] imap-login processes

2008-05-16 Thread Joe Allesi
"I tried switching to high-performance mode yesterday.. It seemed to end up with sort of the same results, though harder to diagnose. Each process I guess ended up hitting the login_process_size = 64 max and then stopped responding." We had this same problem, and switching to high-performance mod

Re: [Dovecot] imap-login processes

2008-05-16 Thread Timo Sirainen
On May 16, 2008, at 6:56 PM, Bryan Polk wrote: On Fri, 16 May 2008, Timo Sirainen wrote: How many imap processes do you have at that time? Each SSL connection uses up one imap-login process. One sure way to fix this would be to change to high-performance mode as described by http://wiki.do

Re: [Dovecot] imap-login processes

2008-05-16 Thread Bryan Polk
On Fri, 16 May 2008, Timo Sirainen wrote: How many imap processes do you have at that time? Each SSL connection uses up one imap-login process. One sure way to fix this would be to change to high-performance mode as described by http://wiki.dovecot.org/LoginProcess Currently 74 imap processe

Re: [Dovecot] imap-login processes

2008-05-16 Thread Timo Sirainen
On Fri, 2008-05-16 at 11:38 -0400, Bryan Polk wrote: > First, thanks for this great product. We migrated from Courier last week > with only small bumps along the way. We have a few hundred active users > with a mix of pop3 and imap clients. The server is running on sparc > Solaris 9. > > We're

[Dovecot] imap-login processes

2008-05-16 Thread Bryan Polk
First, thanks for this great product. We migrated from Courier last week with only small bumps along the way. We have a few hundred active users with a mix of pop3 and imap clients. The server is running on sparc Solaris 9. We're seeing a problem now with the number of "imap-login" processes