[Pacemaker] Linux HA setup for CentOS 6.5

Sihan Goi goister at gmail.com
Wed Oct 15 00:23:19 EDT 2014 

No typo.

[root at node02 network-scripts]# ls -lah
/etc/sysconfig/network-scripts/ifcfg-*
-rw-r--r--. 1 root root 254 Oct 10  2013
/etc/sysconfig/network-scripts/ifcfg-lo

I installed CentOS 6.5 with the LiveDVD. I found it weird as well that
these files were missing.

On Wed, Oct 15, 2014 at 11:54 AM, Digimer <lists at alteeve.ca> wrote:

> Sure there isn't a typo there?
>
> an-c05n01:~# ls -lah /etc/sysconfig/network-scripts/ifcfg-*
> -rw-r--r--. 1 root root 225 Jan 16  2013 /etc/sysconfig/network-
> scripts/ifcfg-bond0
> -rw-r--r--. 1 root root 220 Jan 16  2013 /etc/sysconfig/network-
> scripts/ifcfg-bond1
> -rw-r--r--. 1 root root 198 Jan 16  2013 /etc/sysconfig/network-
> scripts/ifcfg-bond2
> -rw-r--r--. 1 root root 149 Jan 16  2013 /etc/sysconfig/network-
> scripts/ifcfg-eth0
> -rw-r--r--. 1 root root 144 Jan 16  2013 /etc/sysconfig/network-
> scripts/ifcfg-eth1
> -rw-r--r--. 1 root root 152 Mar 14  2013 /etc/sysconfig/network-
> scripts/ifcfg-eth2
> -rw-r--r--. 1 root root 149 Jan 16  2013 /etc/sysconfig/network-
> scripts/ifcfg-eth3
> -rw-r--r--. 1 root root 144 Jan 16  2013 /etc/sysconfig/network-
> scripts/ifcfg-eth4
> -rw-r--r--. 1 root root 152 Mar 14  2013 /etc/sysconfig/network-
> scripts/ifcfg-eth5
> -rw-r--r--. 1 root root 254 Jul 22 09:56 /etc/sysconfig/network-
> scripts/ifcfg-lo
> -rw-r--r--. 1 root root 213 Mar 13  2013 /etc/sysconfig/network-
> scripts/ifcfg-vbr2
>
> I've never seen an EL6 install without the files there, 'network' or
> NetworkManager aside.
>
> digimer
>
> On 14/10/14 11:32 PM, Sihan Goi wrote:
>
>> There aren't any config files in /etc/sysconfig/network-scripts. When I
>> was using CentOS 7, the config files were there (ifcfg-something) but in
>> this CentOS 6.5 installation, they are missing.
>>
>> If is possible to not use cman, and just use corosync and pacemaker? If
>> so, how?
>>
>> On Wed, Oct 15, 2014 at 11:22 AM, Digimer <lists at alteeve.ca
>> <mailto:lists at alteeve.ca>> wrote:
>>
>>     You can manually configure the wireless LAN without NetworkManager.
>>     If you take a look, there should be existing config files in
>>     /etc/sysconfig/network-__scripts/ for the wireless connection. I've
>>     not done it myself since many Fedora's ago, but I believe you can
>>     change NMCONTROLLER="no" and then start it up with
>>     /etc/sysconfig/network start. I could be a bit wrong, but I am sure
>>     you can make wireless work without NM.
>>
>>     Question; Servers with WLAN? I assume these won't be used for
>> corosync?
>>
>>     digimer
>>
>>
>>     On 14/10/14 11:17 PM, Sihan Goi wrote:
>>
>>         Hi,
>>
>>         Is there a tutorial showing how to get a basic Linux HA setup with
>>         replicated storage (via DRBD) working on CentOS 6.5? I want to
>> have
>>         mySQL as the HA resource with the database replicated across the
>>         nodes.
>>         I've scoured the web for one but it seems that I get stuck in
>>         each one
>>         somewhere.
>>
>>         To elaborate, I have 2 CentOS 6.5 nodes configured with distinct
>>         hostnames and static IPs. They are connected to a wireless AP,
>>         and can
>>         ping each other.
>>
>>         I tried following this guide -
>>         http://clusterlabs.org/__quickstart-redhat.html
>>         <http://clusterlabs.org/quickstart-redhat.html>
>>         However, cman will not start when NetworkManager is running, and
>> my
>>         nodes cannot connect to the wireless AP without NetworkManager
>>         running.
>>         Am I missing something or is that the stupidest dependency ever?
>>         How is
>>         a cluster supposed to work when the nodes aren't connected to
>>         one another?
>>
>>         I also tried following the "clusters from scratch" guide but
>>         that seems
>>         to rely on systemctl calls which aren't available on CentOS 6.5.
>>
>>         Any help?
>>
>>         --
>>         - Goi Sihan
>>         goister at gmail.com <mailto:goister at gmail.com>
>>         <mailto:goister at gmail.com <mailto:goister at gmail.com>>
>>
>>
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>>         <http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf>
>>         Bugs: http://bugs.clusterlabs.org
>>
>>
>>
>>     --
>>     Digimer
>>     Papers and Projects: https://alteeve.ca/w/
>>     What if the cure for cancer is trapped in the mind of a person
>>     without access to education?
>>
>>     _________________________________________________
>>     Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
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>>     http://oss.clusterlabs.org/__mailman/listinfo/pacemaker
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>>
>>     Project Home: http://www.clusterlabs.org
>>     Getting started:
>>     http://www.clusterlabs.org/__doc/Cluster_from_Scratch.pdf
>>     <http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf>
>>     Bugs: http://bugs.clusterlabs.org
>>
>>
>>
>>
>> --
>> - Goi Sihan
>> goister at gmail.com <mailto:goister at gmail.com>
>>
>>
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>>
>> Project Home: http://www.clusterlabs.org
>> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>> Bugs: http://bugs.clusterlabs.org
>>
>>
>
> --
> Digimer
> Papers and Projects: https://alteeve.ca/w/
> What if the cure for cancer is trapped in the mind of a person without
> access to education?
>
> _______________________________________________
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> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
> Project Home: http://www.clusterlabs.org
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> Bugs: http://bugs.clusterlabs.org
>



-- 
- Goi Sihan
goister at gmail.com
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