slave server and replication

klaas hagemann klaas at northsailor.de
Wed Apr 10 02:52:19 EDT 2002


rsync is a good idea, but as far as i can see from

http://www.citi.umich.edu/u/kwc/krb5.load.txt

it takes a lot more time to load the database then to send it over the
network.
And with rsync you still have this problem.

Klaas

----- Original Message -----
From: "Steve Langasek" <vorlon at dodds.net>
To: "klaas hagemann" <klaas at northsailor.de>
Cc: "Cesar Garcia" <Cesar.Garcia at morganstanley.com>; <kerberos at mit.edu>
Sent: Monday, April 08, 2002 3:58 PM
Subject: Re: slave server and replication


> On Mon, Apr 08, 2002 at 02:44:45PM +0200, klaas hagemann wrote:
> > And is there any chance to do something like this with MIT Kerberos?
>
> Why not use rsync?  Rsync has a good algorithm for detecting changes
> between local and remote files, and only sends as much information as
> needed to get them back in sync.  For best results, you should still use
> 'kdb5_util dump' to create an off-line flatfile to run rsync on, instead
> of using the live database, and then run 'kdb5_util load' on each slave to
> load the new changes.
>
> http://www.samba.org/rsync
>
> Steve Langasek
> postmodern programmer
>
> > ----- Original Message -----
> > From: "Cesar Garcia" <Cesar.Garcia at morganstanley.com>
> > To: "klaas hagemann" <klaas at northsailor.de>
> > Sent: Monday, April 08, 2002 2:19 PM
> > Subject: Re: slave server and replication
> >
> >
> > > If it's not too late, you might want to consider using Heimdal.
> > > They support incremental propagation.
> > >
> > > See:
> > > http://www.pdc.kth.se/heimdal/
> > > http://www.pdc.kth.se/heimdal/heimdal.html
> > >
> > > >>>>> "klaas" == klaas hagemann <klaas at northsailor.de> writes:
> > >
> > > klaas> Hello,
> > > klaas> i need to set up a couple of slave kdc's. therefor i looked for
the
> > replication mechanism and found out, that you have to run a cron job
sending
> > the whole kerberos database over the network with each replication.
> > >
> > > klaas> Is there any possibility only to send the difference to the old
> > database over the network? I am loooking for a kind of incremental
> > replication.
> > >
> > > klaas> Has anyone an idea for it?
> > >
> > > klaas> thx, Klaas
> > > klaas> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
> > > klaas> <HTML><HEAD>
> > > klaas> <META http-equiv=Content-Type content="text/html;
> > charset=iso-8859-1">
> > > klaas> <META content="MSHTML 6.00.2600.0" name=GENERATOR>
> > > klaas> <STYLE></STYLE>
> > > klaas> </HEAD>
> > > klaas> <BODY bgColor=#ffffff>
> > > klaas> <DIV><FONT face=Arial size=2>Hello,</FONT></DIV>
> > > klaas> <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
> > > klaas> <DIV><FONT face=Arial size=2>i need to set up a couple of slave
> > kdc's. therefor
> > > klaas> i looked for the replication mechanism and found out, that you
have
> > to run a
> > > klaas> cron job sending the whole kerberos database over the network
with
> > each
> > > klaas> replication.</FONT></DIV>
> > > klaas> <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
> > > klaas> <DIV><FONT face=Arial size=2>Is there any possibility only to
send
> > the
> > > klaas> difference to the old database over the network? I am loooking
for
> > a kind of
> > > klaas> incremental replication.</FONT></DIV>
> > > klaas> <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
> > > klaas> <DIV><FONT face=Arial size=2>Has anyone an idea for
> > it?</FONT></DIV>
> > > klaas> <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
> > > klaas> <DIV><FONT face=Arial size=2>thx,
Klaas</FONT></DIV></BODY></HTML>
> >
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