If you are using redhat 7, you sould use corosync+pacemaker as cluster stack
2014-06-16 13:13 GMT+02:00 Thanachit Wichianchai <thanachi...@googlemail.com >: > 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 on z2.example.com > Stack: corosync > Current DC: 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 labs > http://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 > > http://hi.im/thanachit > > [image: Google Plus] > <https://plus.google.com/u/0/102459307371925233265/posts> [image: > 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 > > -- esta es mi vida e me la vivo hasta que dios quiera
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