well .... you have only ldapclusterhosts file and if you
modify its content then qmail must reread it
i think that ldapmailhost file it don't exist
if you modify only ldap atributtes then qmail don't need
to reread some control files
maybe it's a good ideea to look on this link
http://ask.slashdot.org/comments.pl?sid=183639&cid=15170057
--- Antonio Guirado Puerta <antonio.guirado@f-integra.org>
wrote:
> Hello,
>
> I think it is easier change ldapmailhost or
> Ldapclusterhost control
> file. Isn't it?.
>
> Regards
>
>
> El vie, 24-11-2006 a las 05:13 -0800, Mihai Costache
> escribió:
> > this another link for thist qmail/GFS mix
> >
> >
>
http://marc2.theaimsgroup.com/?l=redhat-linux-cluster&m=114605641902158&w=2
> >
> > if your SAN not permiting to mount one partition on
> twho
> > machine then you can think on this suggestion: use
> > heartbeat from linux-ha.org with your configuration
> from
> > last mail
> > you need to make an "simple" perl/bash script that,
> when
> > heatbeat detect that one of you qmail host is down,
> must
> > do:
> > 1)change mailHost attributes on openldap for email
> accounts
> > "storred" on host down
> > 2)mount the other SAN partition used by the qmail host
> down
> >
> >
> > this suggestion may have a problem: the time needed
> to
> > make the changes on openldap side
> >
> > or .. you could think on other mta solution ...
> maybe
> > postfix or exim
> >
> >
> >
> >
> > --- Antonio Guirado Puerta
> <antonio.guirado@f-integra.org>
> > wrote:
> >
> > > According our SAN partner, it is impossible mount a
> same
> > > volume
> > > with read/write permission in two machines. So it is
> > > necessary a
> > > middle level, based in network file systems (NFS,
> GFS,
> > > etc.). We know
> > > that there are installations with GFS but googling we
> > > found the
> > > following link:
> > >
> > >
> >
>
http://www.redhat.com/archives/linux-cluster/2005-September/msg00220.html
> > >
> > > Any good/bad experiences about GFS and QMAL? Is a
> good
> > > mix?
> > >
> > > Thanks.
> > >
> > >
> > >
> > > El vie, 24-11-2006 a las 02:34 -0800, Mihai Costache
> > > escribió:
> > > >
> > > > why you don't use a 2 identical qmail-ldap hosts ?
> and
> > > this two qmail hosts behind f5 balancer ?
> > > >
> > > > and you have a single SAN partition ... and this
> > > partition is mounted on each qmail-ldap machine
> > > (configuration of this qmail-ldap
> > > > hosts are identical)
> > > >
> > > > in this case the email are stock on the same SAN
> > > partition, regardless of qmail-ldap hosts
> > > >
> > > > also the pop3 use the maildir on SAN partition
> > > regardless of qmail-ldap hosts
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > ----- Original Message ----
> > > > From: Antonio Guirado Puerta
> > > <antonio.guirado@f-integra.org>
> > > > To: qmail-ldap@qmail-ldap.org
> > > > Cc: carlos.garcia@f-integra.org
> > > > Sent: Thursday, November 23, 2006 12:17:50 PM
> > > > Subject: QMAIL CLUSTER with BACKUP
> > > >
> > > > Hello,
> > > >
> > > > We are evaluating qmail-ldap for an ISP
> installation.
> > > > We need a qmail cluster situated behind a F5
> balancer.
> > > > We are going to distribute domains between two
> > > different
> > > > qmail instances situated in different machines (p.e
> > > mx1.domain.com
> > > > and mx2.domain.com).
> > > >
> > > > Maildirs are on a two SAN partitions. Each machine
> > > manages
> > > > its partition where maildirs associated to
> controlled
> > > domains are.
> > > >
> > > > 1. Both machines active.
> > > >
> > > > Qmail-LDAP-Cluster is interesting when both
> machines
> > > are up. Mailhost
> > > > attribute tell in which machine (mx1 or mx2)
> maildir
> > > is. If balancer
> > > > carries the session to a wrong qmail (where maildir
> is
> > > not mounted),
> > > > QMQP transfers SMTP/POP3/IMAP session to the right
> > > instance of qmail.
> > > > Notice that ldapclusterhost file can not have
> > > > both machine names (mx1.domain.com and
> mx2.domain.com)
> > > because
> > > > in that case, session is not transfer between qmail
> > > instances.
> > > >
> > > > 2. One machine is down.
> > > >
> > > > At this moment, both partitions are mounted on the
> > > active machine. So,
> > > > only one Qmail must manage all domains.
> Ldapclusterhost
> > > files should be
> > > > used in this moment. Now Ldapclusterhost should has
> > > mx1.domain.com and
> > > > mx2.domain.com.
> > > >
> > > >
> > > > We think that the same script that mount the
> partition
> > > in the active
> > > > machine, changes the content of Ldapclusterhost
> file.
> > > But I'd like to
> > > > ask if someone has a similar scenario or
> > > qmail-ldap-cluster let do a
> > > > backup cluster in an automatic way, using only
> control
> > > files.
> > > >
> > > > Thanks in advanced.
> > > > Regards.
> > > >
> > > --
> > > ___________________________________________
> > >
> > > Antonio M. Guirado Puerta
> > > Sistemas de Información y Comunicaciones
> > > Fundación Integra. http://www.f-integra.org
> > >
> > > Teléfono: +34 968 355161
> > > Fax: +34 968 355131
> > > Correo: antonio.guirado@f-integra.org
> > > ___________________________________________
> > > Este mensaje y los posibles documentos adjuntos al
> mismo
> > > son confidenciales y
> > > dirigidos exclusivamente a los destinatarios de los
> > > mismos. Si por un error
> > > de transmisión, o equivocación en la dirección de
> envío,
> > > usted ha recibido
> > > este mensaje y no es el destinatario de la
> información,
> > > por favor, notifíqueselo
> > > al remitente y borre este mensaje, sin usar,
> informar,
> > > distribuir, imprimir, copiar
> > > o difundir el mensaje, total o parcialmente, por
> ningún
> > > medio. Gracias.
> > >
> > >
> > >
> >
> >
> >
> >
> >
>
____________________________________________________________________________________
> > Do you Yahoo!?
> > Everyone is raving about the all-new Yahoo! Mail beta.
> > http://new.mail.yahoo.com
> >
> --
> ___________________________________________
>
> Antonio M. Guirado Puerta
> Sistemas de Información y Comunicaciones
> Fundación Integra. http://www.f-integra.org
>
> Teléfono: +34 968 355161
> Fax: +34 968 355131
> Correo: antonio.guirado@f-integra.org
> ___________________________________________
> Este mensaje y los posibles documentos adjuntos al mismo
> son confidenciales y
> dirigidos exclusivamente a los destinatarios de los
> mismos. Si por un error
> de transmisión, o equivocación en la dirección de envío,
> usted ha recibido
> este mensaje y no es el destinatario de la información,
> por favor, notifíqueselo
> al remitente y borre este mensaje, sin usar, informar,
> distribuir, imprimir, copiar
> o difundir el mensaje, total o parcialmente, por ningún
> medio. Gracias.
>
>
>
____________________________________________________________________________________
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