HI Arif, Thanks for the configuration listed below, I updated the xCAT doc http://sourceforge.net/apps/mediawiki/xcat/index.php?title=Setup_HA_Mgmt_Node_With_DRBD_Pacemaker_Corosync to reflect this. If you have any further updates with the configuration or procedure, please let me know and I can update the doc. Thanks.
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Li,Guang Cheng (李光成)
IBM China System Technology Laboratory
Email: ligua...@cn.ibm.com
Address: Building 28, ZhongGuanCun Software Park,
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邮编: 100193
From: Arif Ali <m...@arif-ali.co.uk>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Date: 2013-08-21 05:18
Subject: Re: [xcat-user] xCAT HA documentation
Hi Lindsay,
Thanks for the info, that is good to know.
But after diagnosing for the day, I have found the relevant stuff to get it
all working,So wrt the documentation from
http://sourceforge.net/apps/mediawiki/xcat/index.php?title=Setup_HA_Mgmt_Node_With_DRBD_Pacemaker_Corosync
, the following would be the current changes, this is now successfully
working for me know. Will be doing more testing tomorrow. If the devs are
happy I will make the relevant changes to reflect the chang in rhels6.4
pcs property set stonith-enabled=false
pcs property set no-quorum-policy=ignore
pcs resource op defaults timeout="120s"
pcs resource create ip_xCAT ocf:heartbeat:IPaddr2 ip="10.1.0.1" \
iflabel="xCAT" cidr_netmask="24" \
op monitor interval="37s"
pcs resource create NFS_xCAT lsb:nfs \
op monitor interval="41s"
pcs resource create NFSlock_xCAT lsb:nfslock \
op monitor interval="43s"
pcs resource create apache_xCAT ocf:heartbeat:apache
configfile="/etc/httpd/conf/httpd.conf" \
statusurl="http://localhost:80/icons/README.html"; testregex="</html>"
\
op monitor interval="57s"
pcs resource create db_xCAT ocf:heartbeat:mysql
config="/xCATdrbd/etc/my.cnf" test_user="mysql" \
binary="/usr/bin/mysqld_safe" pid="/var/run/mysqld/mysqld.pid"
socket="/var/lib/mysql/mysql.sock" \
op monitor interval="57s"
pcs resource create dhcpd lsb:dhcpd
op monitor interval="37s"
pcs resource create drbd_xCAT ocf:linbit:drbd drbd_resource=xCAT
pcs resource master ms_drbd_xCAT drbd_xCAT master-max="1"
master-node-max="1" clone-max="2" clone-node-max="1" notify="true"
pcs resource create dummy ocf:heartbeat:Dummy
pcs resource create fs_xCAT ocf:heartbeat:Filesystem
device="/dev/drbd/by-res/xCAT" directory="/xCATdrbd" fstype="ext4" \
op monitor interval="57s"
pcs resource create named lsb:named \
op monitor interval="37s"
pcs resource create symlinks_xCAT ocf:tummy:drbdlinks
configfile="/xCATdrbd/etc/drbdlinks.xCAT.conf" \
op monitor interval="31s"
pcs resource create xCAT lsb:xcatd \
op monitor interval="42s"
pcs resource clone clone_named named clone-max=2 clone-node-max=1
notify=false
pcs resource group add fs_xCAT symlinks_xCAT
pcs constraint colocation add NFS_xCAT grp_xCAT
pcs constraint colocation add NFSlock_xCAT grp_xCAT
pcs constraint colocation add apache_xCAT grp_xCAT
pcs constraint colocation add dhcpd grp_xCAT
pcs constraint colocation add db_xCAT grp_xCAT
pcs constraint colocation add dummy grp_xCAT
pcs constraint colocation add xCAT grp_xCAT
pcs constraint colocation add grp_xCAT ms_drbd_xCAT INFINITY
with-rsc-role=Master
pcs constraint colocation add ip_xCAT ms_drbd_xCAT INFINITY
with-rsc-role=Master
pcs constraint order list xCAT dummy
pcs constraint order list NFSlock_xCAT dummy
pcs constraint order list apache_xCAT dummy
pcs constraint order list dhcpd dummy
pcs constraint order list db_xCAT dummy
pcs constraint order list NFS_xCAT dummy
pcs constraint order list fs_xCAT symlink_xCAT
pcs constraint order list ip_xCAT db_xCAT
pcs constraint order list ip_xCAT apache_xCAT
pcs constraint order list ip_xCAT dhcpd
pcs constraint order list grp_xCAT NFS_xCAT
pcs constraint order list grp_xCAT NFSlock_xCAT
pcs constraint order list grp_xCAT apache_xCAT
pcs constraint order list grp_xCAT db_xCAT
pcs constraint order list grp_xCAT dhcpd
pcs constraint order list db_xCAT xCAT
pcs constraint order promote drbd_xCAT_master then start grp_xCAT
--
Arif Ali
IRC: arif-ali at freenode
LinkedIn: http://uk.linkedin.com/in/arifali
On 20 August 2013 18:20, Lindsay Todd <rltodd....@gmail.com> wrote:
Speaking as an xCAT user... We run an HA-xCAT management node with
RedHat 6.4, as well as a couple other HA clusters.
Right now, pcs does not make it possible to (easily) do everything that
crm can do. Personally, I think RedHat jumped the gun by removing crm
before pcs was really ready to take its place -- although I think pcs
will get there. One thing in particular that crm has going for it over
pcs is documentation...
So we bring in crmsh from the OpenSUSE repository -- but just crmsh and
its prerequisites. It is a little more featureful than the one RedHat
took away. We use RedHat's build of pacemaker on our xCAT management
nodes, and it interoperates well. You could always build crmsh from
source, too.
Hope this helps...
/Lindsay
On Tue, Aug 20, 2013 at 10:34 AM, Arif Ali <m...@arif-ali.co.uk> wrote:
All,
I am in the process of doing xCAT HA on rhels6.4, but after a day of
diagnosing, realised that crm no longer exists, and now we have to use
pcs instead
Have any of the devs started working with the view of working pcs, or
will we need to download the pssh and crmssh from openSUSE repositories?
regards,
--
Arif Ali
IRC: arif-ali at freenode
LinkedIn: http://uk.linkedin.com/in/arifali
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