Re: [vchkpw] NFS / Disk Access / Load Concerns on Vpopmail cluster

2004-07-06 Thread Jeremy Kitchen
On Tuesday 06 July 2004 04:41 pm, Charles Sprickman wrote: > On Mon, 5 Jul 2004, Jeremy Kitchen wrote: > > Also, on top of that, I would consider disabling auth logging as it > > performs an insert/update upon every authentication which, no matter what > > will go back to your central mysql server,

Re: [vchkpw] NFS / Disk Access / Load Concerns on Vpopmail cluster

2004-07-06 Thread Charles Sprickman
On Tue, 6 Jul 2004, Rick Widmer wrote: > Charles Sprickman wrote: > > > On Mon, 5 Jul 2004 [EMAIL PROTECTED] wrote: > > > -vpopmaild will be nice - no need to have webmail on the same box > > vpopmaild has nothing to do with webmail, although I guess you could use > it to retrieve mail through the

Re: [vchkpw] NFS / Disk Access / Load Concerns on Vpopmail cluster

2004-07-06 Thread Charles Sprickman
On Mon, 5 Jul 2004, Eric Ziegast wrote: > With webmail, the session state is not saved nor cached, so with each > new request, the mailbox can be rescanned. A relatively modest webmail > application might only rescan all headers and show subject lines. A > complex application might scan all con

Re: [vchkpw] NFS / Disk Access / Load Concerns on Vpopmail cluster

2004-07-06 Thread Charles Sprickman
On Mon, 5 Jul 2004, Jeremy Kitchen wrote: > Also, on top of that, I would consider disabling auth logging as it performs > an insert/update upon every authentication which, no matter what will go back > to your central mysql server, and if you have mysql being replicated, will be > replicated to t

Re: [vchkpw] NFS / Disk Access / Load Concerns on Vpopmail cluster

2004-07-06 Thread Rick Widmer
Charles Sprickman wrote: On Mon, 5 Jul 2004 [EMAIL PROTECTED] wrote: -vpopmaild will be nice - no need to have webmail on the same box vpopmaild has nothing to do with webmail, although I guess you could use it to retrieve mail through the back door. I'd suggest IMAP or POP3 based webmail inst

Re: [vchkpw] NFS / Disk Access / Load Concerns on Vpopmail cluster

2004-07-06 Thread Rick Widmer
Rainer Duffner wrote: Eric Ziegast wrote: What we're seeing is that our network and RAID 5 IDE-based disk array on our central mail store server is not able to keep up with the 'client' servers doing the POP3, IMAP, Webmail, and SMTP legwork. I've found an interesting bottleneck with webmail. Wh

Re: [vchkpw] NFS / Disk Access / Load Concerns on Vpopmail cluster

2004-07-06 Thread Charles Sprickman
On Mon, 5 Jul 2004 [EMAIL PROTECTED] wrote: > Before we take this costly step, what have you noticed for user / system > loads before you start hitting the limits of your hardware? Should we be > having these issues with about 15,000 email users and 5 front-end 'work' > servers? Well, you're maki

Re: [vchkpw] NFS / Disk Access / Load Concerns on Vpopmail cluster

2004-07-06 Thread Rainer Duffner
Eric Ziegast wrote: What we're seeing is that our network and RAID 5 IDE-based disk array on our central mail store server is not able to keep up with the 'client' servers doing the POP3, IMAP, Webmail, and SMTP legwork. I've found an interesting bottleneck with webmail. When people use POP or IMA

Re: [vchkpw] NFS / Disk Access / Load Concerns on Vpopmail cluster

2004-07-05 Thread Eric Ziegast
> What we're seeing is that our network and RAID 5 IDE-based disk array on > our central mail store server is not able to keep up with the 'client' > servers doing the POP3, IMAP, Webmail, and SMTP legwork. I've found an interesting bottleneck with webmail. When people use POP or IMAP clients (Ou

Re: [vchkpw] NFS / Disk Access / Load Concerns on Vpopmail cluster

2004-07-05 Thread Jeremy Kitchen
On Monday 05 July 2004 03:06 pm, [EMAIL PROTECTED] wrote: > This mail store server is responsible for the store of the > vpopmail/domains directory (NFS mounted by the 'client servers') and run > SQL select queries to verify passwords... The read / writes on the disks > are reaching the limit of t