Date: Sun, 5 Dec 1999 14:46:07 -0600 From: Dan Nelson <dnelson@emsphone.com> To: "Ronald F. Guilmette" <rfg@monkeys.com> Cc: Matthew Dillon <dillon@apollo.backplane.com>, freebsd-hackers@FreeBSD.ORG Subject: Sendmail (was Re: tmpfs .. ?) Message-ID: <19991205144607.A84813@dan.emsphone.com> In-Reply-To: <21237.944421456@monkeys.com>; from "Ronald F. Guilmette" on Sun Dec 5 11:17:36 GMT 1999 References: <199912050447.UAA58828@apollo.backplane.com> <21237.944421456@monkeys.com>
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In the last episode (Dec 05), Ronald F. Guilmette said: > Matthew Dillon <dillon@apollo.backplane.com> wrote: > > Mail queue files are persistant enough (upwards of 5 days if a > > destination is down) that you run a real risk of losing something > > important if you crash and wipe. I would not use MFS at all and I > > would only use VN with persistant store, but the performance is > > going to be similar to using a normal filesystem so it may not be > > worth doing. > > Yea, someone else I was talking with about this said the same thing. > > I just can't get over the nagging feeling that (for the mail spool > directory) there ought to be something that is ultra-super-deluxe > fast that I should be using. :-) Sendmail 8.10 seems to have some performance enhancements, including "memory-buffered files to reduce file system overhead by not creating temporary files on disk", "New queue file naming system which uses a filename guaranteed to be unique for 60 years. This allows queue IDs to be assigned without fancy file system locking", and "QueueSortOrder=Filename will sort the queue by filename. This avoids opening and reading each queue file when preparing to run the queue". I don't know if any of them really help, but it's worth looking at. -- Dan Nelson dnelson@emsphone.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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