LVS
lvs-users
Google
 
Web LinuxVirtualServer.org

Re: Load balanced mail system

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: Load balanced mail system
From: Joseph Mack NA3T <jmack@xxxxxxxx>
Date: Fri, 13 Jan 2006 12:49:03 -0800 (PST)
On Fri, 13 Jan 2006, Todd Lyons wrote:

On Fri, Jan 13, 2006 at 12:22:28PM -0800, Joseph Mack NA3T wrote:

There are two mailbox formats. One is called mbox and I
forget the other. One is suitable for rsync'ing, the other
isn't.
The other one is maildir.
OK which MTAs use mbox and which use maildir and which is
suitable for rsync'ing (mbox, or maildir)

mbox is one file for all messages (like the /var/spool/mail/$USER mailbox)
maildir is one file per message

I don't know that I'd feel all that comfortable about syncing either
one:
mbox - This could end up with a corrupted mbox file since it's all one
big long file.

yes

maildir - Guaranteed that you won't end up with any filename conflicts
since the hostname is used in the filename, but there are some shared
files, such as the quota or subscribed files.  Those files could easily
get out of sync.

thanks. In the early days of LVS, I remember people using one of these formats for mail farms, but I could remember which. Maybe they used maildir and assumed people wouldn't use any fancy features.

Thanks Joe




--
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml Homepage http://www.austintek.com/ It's GNU/Linux!

<Prev in Thread] Current Thread [Next in Thread>