Basically, Guys... has anyone done these types of setups with 100k+mailboxes / etc. P On Tue, 26 Oct 2004 16:41:29 -0400, Dascalu Dragos <dascalu_dragos@xxxxxxx> wrote: > We are working on a similar scenario but adding mailman into the mix. > The ideal outcome would be for multiple mailman/postfix servers to > write archives, etc to the same centralized location on a SAN. After > doing some tests this setup does not appear to be trivial. We ran into > a similar problem when using NFS; if multiple machines write to the > same file at the same time the file gets mangled as the machines cut > each other off. With GFS we noticed that each machine has a 4k buffer > window in which it writes its data. If a second process decides to > start writing to the same file we noticed alternating writes to the > file after 4k of data. > > We would like multiple mailman machines to write their archives to a > centralized space on a SAN. If a mail list message gets sent > concurrently from both machines to the same list, the archives may get > mangled. I would also like to know of any alternatives to make this > work. > > Dede. > > > On Oct 26, 2004, at 4:14 PM, Patrick wrote: > > > Hi, > > > > If i was going to use GFS on a mail system for a LOT of users, and i > > was going to have multiple machines writing to the mailstore. I was > > thinking to decrease the ammount of possible problems by splitting the > > device up into multiple smaller fs's to lower the chance of the same > > directory being hit / drive / lun etc. > > > > Anyone else have any ideas on what would be good things to take into > > account ? It would be on FC - > SAN ( fast T600 ) and maildir with > > postfix 2.x > > > > Comments anyone ? > > > > P > > -- > > Linux-cluster@xxxxxxxxxx > http://www.redhat.com/mailman/listinfo/linux-cluster > > > -- </N>
