Correct.

---------------------------------------------------

Thanks,
Chris
Personal Blog: http://cwhisonant.blogspot.com
Work Blog: http://www.bleedyellow.com/blogs/lotusnut


On Thu, Feb 17, 2011 at 4:19 PM, <rob@xxxxxxxxx> wrote:

Interesting. Then the only concern is that both heartbeat servers must be
in the same location unless we cough up 0.25M$ to upgrade our switches to
allows the same IP address in two cities.


Rob Berendt
--
Group Dekko
Dept 1600
Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: Chris Whisonant <chris.whisonant@xxxxxxxxx>
To: "Lotus Domino on the iSeries / AS400" <domino400@xxxxxxxxxxxx>
Date: 02/17/2011 03:37 PM
Subject: Re: Quickr, user directory
Sent by: domino400-bounces+rob=dekko.com@xxxxxxxxxxxx



If you install two Linux servers (with different IP addresses) and then
use
another product (called "heartbeat"), then heartbeat will be the IP
address
that you specify for your client/server connections to LDAP. Since both
servers would run heartbeat, the secondary server would be monitoring the
"other" IP address of the primary server. If it senses that it's down,
then
heartbeat will take over the IP address used by your other servers to hit
LDAP and it would become the primary server.

---------------------------------------------------

Thanks,
Chris
Personal Blog: http://cwhisonant.blogspot.com
Work Blog: http://www.bleedyellow.com/blogs/lotusnut


On Thu, Feb 17, 2011 at 3:20 PM, <rob@xxxxxxxxx> wrote:

Sounds good. However, do you have two haproxy servers, or, does it
eventually come down to a single point of failure anyway?


Rob Berendt
--
Group Dekko
Dept 1600
Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: Chris Whisonant <chris.whisonant@xxxxxxxxx>
To: "Lotus Domino on the iSeries / AS400" <domino400@xxxxxxxxxxxx>
Date: 02/17/2011 03:16 PM
Subject: Re: Quickr, user directory
Sent by: domino400-bounces+rob=dekko.com@xxxxxxxxxxxx



Can you setup a Linux server? If so, you really need to try HAProxy:
http://haproxy.1wt.eu/

I just set it up for a customer the other week and HAProxy is being used
for
Quickr HTTP failover between Quickr clustered pair, and we're also using
it
for LDAP load balancing/failover of two Domino LDAP servers. We have
Cognos,
Quickr, Sametime, and Connections all directing LDAP to the HAProxy.
It's
great, and very easy to configure! :)

---------------------------------------------------

Thanks,
Chris
Personal Blog: http://cwhisonant.blogspot.com
Work Blog: http://www.bleedyellow.com/blogs/lotusnut


On Thu, Feb 17, 2011 at 2:49 PM, <rob@xxxxxxxxx> wrote:

We have domino servers called LDAP01, LDAP02, LDAP03. They are each
on
different lpars running IBM i. Each lpar is on a different physical
power
6 box. They, obviously, serve up ldap. My Domino quickr server
(XQP02),
Site Administration, only allows me to enter one ldap entry. How do I
get
it to roll over to LDAP02 when LDAP01 is out of service?

We tried DNS round robin years ago. That's no good. Just because I
can
ping LDAP01 doesn't mean that the Domino server LDAP01 is even
running.
All it means is that the OS on that lpar can return a ping. DNS round
robin isn't robust enough to check to see if ldap is being served from
that address.


Rob Berendt
--
Group Dekko
Dept 1600
Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com

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