On 08/21/2012 03:28 PM, Lang, David wrote:
> Remember that I was responding to the statement that it was
> impossible to have an IP address on two machines.
Right. For those without a networking/sysprog major out there:
it's certainly possible, no-one can stop you. Under normal circumstances
arp
it.
David Lang
From: linux-ha-boun...@lists.linux-ha.org [linux-ha-boun...@lists.linux-ha.org]
on behalf of Dimitri Maziuk [dmaz...@bmrb.wisc.edu]
Sent: Tuesday, August 21, 2012 10:05 AM
To: linux-ha@lists.linux-ha.org
Subject: Re: [Linux-HA] IP Clone
On 08/20/2012 06:01
On Tue, 21 Aug 2012, Lars Marowsky-Bree wrote:
> On 2012-08-21T13:16:29, David Lang wrote:
>
>> with ldirectord you have an extra network hop, and you have all your
>> traffic going through one system. This is a scalability bottleneck as
>> well as bing a separate system to configure.
>>
>> CLUST
On 2012-08-21T13:16:29, David Lang wrote:
> with ldirectord you have an extra network hop, and you have all your
> traffic going through one system. This is a scalability bottleneck as
> well as bing a separate system to configure.
>
> CLUSTERIP isn't the solution to every problem, but it works
On Tue, 21 Aug 2012, Dimitri Maziuk wrote:
> On 8/21/2012 2:28 AM, Lars Marowsky-Bree wrote:
>> On 2012-08-21T00:22:00, Dimitri Maziuk wrote:
>>
>>> CLUSTERIP
> ...
>> Some customers want to do this for a simple load balancing solution that
>> doesn't require additional load balancing hosts. It's
les.
> -Original Message-
> From: linux-ha-boun...@lists.linux-ha.org
> [mailto:linux-ha-boun...@lists.linux-ha.org] On Behalf Of William Seligman
> Sent: Tuesday, August 21, 2012 11:55 AM
> To: General Linux-HA mailing list
> Subject: Re: [Linux-HA] IP Clone
...
> - I didn&#
Subject: Re: [Linux-HA] IP Clone
On 8/20/12 6:54 PM, Yount, William D wrote:
> No, no complaining. Just glad to get a definitive answer on it. Active/Active
> made me think something that I guess isn't true. No worries. Honestly, thanks
> for the reply. Without you, I would have k
On 08/20/2012 06:01 PM, David Lang wrote:
> ANYCAST has severe limitations on what you can do with it, but CLUSTERIP is
> far
> more flexible and can work in just about any local active/active problem.
Apples have severe limitations on the amount of orange juice you can
squeeze out of them, but
ing and trying.
>
>
>
> -Original Message-
> From: linux-ha-boun...@lists.linux-ha.org
> [mailto:linux-ha-boun...@lists.linux-ha.org] On Behalf Of Dimitri Maziuk
> Sent: Monday, August 20, 2012 5:50 PM
> To: linux-ha@lists.linux-ha.org
> Subject: Re: [Linux-HA] IP Clone
>
Dimitri Maziuk said:
>On 08/20/2012 05:01 PM, Yount, William D wrote:
>> I am trying to set up an Active/Active cluster. I have an
>> Active/Passive cluster up and running.
>
> I don't remember seeing a clear explanation of when, where, and why
> you'd actually want an active/active cluster. I nev
neral Linux-HA mailing list
> Subject: Re: [Linux-HA] IP Clone
>
> No ideas?
>
> -Original Message-
> From: linux-ha-boun...@lists.linux-ha.org
> [mailto:linux-ha-boun...@lists.linux-ha.org] On Behalf Of Yount, William D
> Sent: Thursday, August 16, 2012 9:09
On 8/21/2012 2:28 AM, Lars Marowsky-Bree wrote:
> On 2012-08-21T00:22:00, Dimitri Maziuk wrote:
>
>> CLUSTERIP
...
> Some customers want to do this for a simple load balancing solution that
> doesn't require additional load balancing hosts. It's not the worst idea
> for 2-3 nodes, especially with
On 2012-08-21T00:22:00, Dimitri Maziuk wrote:
> CLUSTERIP which you presumably mean by "fun with iptables" is basically
> "Jack gets all calls from even area codes and Jill: from odd area
> codes". Yeah, you cold do that, I just can't imagine why.
>
> Because the commonly given rationale for a
On Tue, Aug 21, 2012 at 3:22 PM, Dimitri Maziuk wrote:
> On 8/20/2012 7:32 PM, Andrew Beekhof wrote:
>> On Tue, Aug 21, 2012 at 8:49 AM, Dimitri Maziuk
>> wrote:
>
>>> You are not allowed to run the IP address on two servers at once, full
>>> stop. Complain to Rob Kahn and Vint Cerf.
>>
>> Thats
On 8/20/2012 7:32 PM, Andrew Beekhof wrote:
> On Tue, Aug 21, 2012 at 8:49 AM, Dimitri Maziuk wrote:
>> You are not allowed to run the IP address on two servers at once, full
>> stop. Complain to Rob Kahn and Vint Cerf.
>
> Thats not strictly true.
In the same way it's not strictly true that eve
On Fri, Aug 17, 2012 at 12:09 PM, Yount, William D
wrote:
> I have two servers. I am using pacemaker/cman(corosync). I am trying to share
> an IP address between them. I would like the IP address to run on both
> servers at the same time. However, my testing has shown that the IP address
> stay
On Tue, Aug 21, 2012 at 8:49 AM, Dimitri Maziuk wrote:
> On 08/20/2012 05:01 PM, Yount, William D wrote:
>> I am trying to set up an Active/Active cluster. I have an
> Active/Passive cluster up and running.
>
> I don't remember seeing a clear explanation of when, where, and why
> you'd actually wa
linux-ha.org
[mailto:linux-ha-boun...@lists.linux-ha.org] On Behalf Of Dimitri Maziuk
Sent: Monday, August 20, 2012 5:50 PM
To: linux-ha@lists.linux-ha.org
Subject: Re: [Linux-HA] IP Clone
On 08/20/2012 05:01 PM, Yount, William D wrote:
> I am trying to set up an Active/Active cluster. I have a
On 08/20/2012 05:01 PM, Yount, William D wrote:
> I am trying to set up an Active/Active cluster. I have an
Active/Passive cluster up and running.
I don't remember seeing a clear explanation of when, where, and why
you'd actually want an active/active cluster. I never needed one myself,
so can't r
From: linux-ha-boun...@lists.linux-ha.org
[mailto:linux-ha-boun...@lists.linux-ha.org] On Behalf Of Dimitri Maziuk
Sent: Monday, August 20, 2012 4:56 PM
To: linux-ha@lists.linux-ha.org
Subject: Re: [Linux-HA] IP Clone
On 08/20/2012 04:19 PM, Yount, William D wrote:
> No ideas?
You lost me at &q
On 08/20/2012 04:19 PM, Yount, William D wrote:
> No ideas?
You lost me at "I would like the IP address to run on both servers at
the same time" -- IME pacemaker not letting you do that is a feature.
--
Dimitri Maziuk
Programmer/sysadmin
BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu
s
No ideas?
-Original Message-
From: linux-ha-boun...@lists.linux-ha.org
[mailto:linux-ha-boun...@lists.linux-ha.org] On Behalf Of Yount, William D
Sent: Thursday, August 16, 2012 9:09 PM
To: linux-ha@lists.linux-ha.org
Subject: [Linux-HA] IP Clone
I have two servers. I am using pacemaker
I have two servers. I am using pacemaker/cman(corosync). I am trying to share
an IP address between them. I would like the IP address to run on both servers
at the same time. However, my testing has shown that the IP address stays
locked onto Server2. If I put Server2 in standby, then the IP add
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