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Re: File system mirroring for SMTP/POP Servers
- To: misc_(_at_)_openbsd_(_dot_)_org
- Subject: Re: File system mirroring for SMTP/POP Servers
- From: kami petersen <kokamomi_(_at_)_gueststars_(_dot_)_net>
- Date: Fri, 13 May 2005 16:43:42 +0200
but when it comes to the mail
repository, as far as i know maildir storage is *not* the choice for
Or are you implying that mbox storage is?
Or that neither is?
neither, it's not a problem with maildir, it's a general problem of
maintaining files synchronized.
Basis for the theory?
ok, unison seems to be an option (as in: somebody on google seems to
have gotten it to work reasonably). however i prefer to think of
replicated instances as being constantly and correctly synchronized. the
whole point of qmail and maildirs are that there is never any doubt
about what messages exist or not. having something go off on cron even
once every five minutes will negate this as well as piss off this
particular sysop's overdemanding users. imagine, getting the same spam,
twice! this guy uses pop, a imap/webmail service would be even worse off.
i regard reliability more important than availability as it comes to my
mail, userland arrangements like these give me the creeps. i'm
suggesting that he should try mitigating the reasons for his
unavailability first. users should get used to 99.9% availability, and
that's a reasonable figure for a non-replicated system. or look into
some database system with built-in replication functionality.
anyway, have you any good examples to throw back at me?