You need to setup a skeleton cluster.conf file. You can use the 'ccs'
tool, here is an example (I use for my cluster, adjust the names to suit):
ccs -f /etc/cluster/cluster.conf --createcluster an-anvil-04
ccs -f /etc/cluster/cluster.conf --setcman two_node="1" expected_votes="1"
ccs -f /etc/cluster/cluster.conf --addnode an-a04n01.alteeve.ca
ccs -f /etc/cluster/cluster.conf --addnode an-a04n02.alteeve.ca
ccs -f /etc/cluster/cluster.conf --addfencedev pcmk agent=fence_pcmk
ccs -f /etc/cluster/cluster.conf --addmethod pcmk-redirect
an-a04n01.alteeve.ca
ccs -f /etc/cluster/cluster.conf --addmethod pcmk-redirect
an-a04n02.alteeve.ca
ccs -f /etc/cluster/cluster.conf --addfenceinst pcmk
an-a04n01.alteeve.ca pcmk-redirect port=an-a04n01.alteeve.ca
ccs -f /etc/cluster/cluster.conf --addfenceinst pcmk
an-a04n02.alteeve.ca pcmk-redirect port=an-a04n02.alteeve.ca
ccs -f /etc/cluster/cluster.conf --setfencedaemon post_join_delay="30"
hth
On 16/06/14 07:13 AM, Thanachit Wichianchai wrote:
Hello Pacemaker guys,
I am doing a proof of concept of active/passive HA cluster on RHEL 6.5
Since the customer who I am working for will finally get support from
Red Hat. Therefore, I am trying to comply with Red Hat Documentation.
as stated in several places that on RHEL 6.5 - pacemaker is now
supported with CMAN stack.
I started configuring things by following steps describe in
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Configuring_the_Red_Hat_High_Availability_Add-On_with_Pacemaker/ap-configfile-HAAR.html
document. This document provides configuration steps by using pcs
command. no ccs or crmsh commands at all.
After I have created cluster. I can start cluster services on node1 but
cannot start it on node2 - there error is /etc/cluster/cluster.conf is
not there on node2
pcs cluster start
Starting Cluster...
Starting cluster:
Checking if cluster has been disabled at boot... [ OK ]
Checking Network Manager... [ OK ]
Global setup... [ OK ]
Loading kernel modules... [ OK ]
Mounting configfs... [ OK ]
Starting cman... xmlconfig cannot find /etc/cluster/cluster.conf
[FAILED]
Stopping cluster:
Leaving fence domain... [ OK ]
Stopping gfs_controld... [ OK ]
Stopping dlm_controld... [ OK ]
Stopping fenced... [ OK ]
Stopping cman... [ OK ]
Unloading kernel modules... [ OK ]
Unmounting configfs... [ OK ]
Error: unable to start cman
pcs cluster status command output on node1 shows "cman" stack
pcs cluster status
Cluster Status:
Last updated: Mon Jun 16 15:31:53 2014
Last change: Mon Jun 16 14:23:04 2014 via crmd on rhcs1.localdomain
Stack: cman
Current DC: rhcs1.localdomain - partition with quorum
Version: 1.1.10-14.el6-368c726
2 Nodes configured
0 Resources configured
PCSD Status:
Error: no nodes found in corosync.conf
but from the aforementioned document from Red Hat. the stack is corosync.
[root@z1 ~]#*|pcs cluster status|*
Cluster Status:
Last updated: Thu Jul 25 13:01:26 2013
Last change: Thu Jul 25 13:04:45 2013 via crmd onz2.example.com
<http://z2.example.com>
Stack: corosync
Current DC:z2.example.com <http://z2.example.com> (2) - partition with
quorum
Version: 1.1.10-5.el7-9abe687
2 Nodes configured
0 Resources configured
from the 2 incidents above, I am not sure whether I am on the right path.
My PoC objectives are to
1. configure Active/Passive HA cluster on RHEL 6.5
2. Get Full Support from Red Hat on both OS and High Availability Add-on
3. choose HA Cluster software and stacks which has a future. I expect to have
more than 5 years support from Red Hat and Community.
I found this quick start guide for redhat on cluster
labshttp://clusterlabs.org/quickstart-redhat.html
I am not sure whether I should use ccs command to create cluster first and use
pcs to manage resource.
on more question, I see corosync will be supported in RHEL7. Can I use only
corosync with pacemaker in RHEL 6.5? Will I get support from Red Hat ?
Could you guys please help advise? Thanks a lot.
--
Thanachit Wichianchai / IT Specialist - RHCSA, RHCE
+66 87 696 5522/ thanachit [at] acm.org <mailto:thanachit%20[at]%20acm.org>
http://hi.im/thanachit
Google Plus <https://plus.google.com/u/0/102459307371925233265/posts>
Linkedin <http://th.linkedin.com/in/thanachit>
_______________________________________________
Pacemaker mailing list: Pacemaker@oss.clusterlabs.org
http://oss.clusterlabs.org/mailman/listinfo/pacemaker
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?
_______________________________________________
Pacemaker mailing list: Pacemaker@oss.clusterlabs.org
http://oss.clusterlabs.org/mailman/listinfo/pacemaker
Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org
