[Pacemaker] Help needed to configure MySQL Cluster using Pacemaker, Corosync, DRBD and PCS

[Shameer Babu]

Hi Andrew,

>>>>>>>>Could you be a bit more specific about "didn't work" ?

I have installed MariaDB and tried to add the resource mysql (simply
created resource) using the simple command "pcs resource create MysQL
ocf:heartbeat:mysql" . I know this is incomplete and removed those resource.

Please see my existing cluster status:
-------------------------------------------------------------------------------------------
PCS Status:
---------------------------------------------------------------------------------------
Every 2.0s: pcs status                                   Mon Jan 12
14:56:38 2015

Cluster name: MyCluster
Last updated: Mon Jan 12 14:56:38 2015
Last change: Mon Jan 12 14:56:25 2015 via cibadmin on webserver-01
Stack: corosync
Current DC: webserver-02 (2) - partition with quorum
Version: 1.1.10-32.el7_0.1-368c726
2 Nodes configured
2 Resources configured


Online: [ webserver-01 webserver-02 ]

Full list of resources:

 ClusterIP      (ocf::heartbeat:IPaddr2):       Started webserver-01

PCSD Status:
  webserver-01: Online
  webserver-02: Online

Daemon Status:
  corosync: active/disabled
  pacemaker: active/disabled
  pcsd: active/disabled
------------------------------------------------------------------------------------------------------------
DRBD status in webserver-01: (This may be used to setup MySQL)
---------------------------------------------
[root at webserver-01 ~]# cat /proc/drbd
version: 8.4.5 (api:1/proto:86-101)
GIT-hash: 1d360bde0e095d495786eaeb2a1ac76888e4db96 build by mockbuild@,
2014-08-17 22:54:26

 2: cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate C r-----
    ns:0 nr:12288 dw:12288 dr:728 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:f
oos:0
----------------------------------------------------------------------------------------------------------------------
Databases:
----------------------------------
MariaDB is installed on both nodes

[root at webserver-01 ~]# mysql -V
mysql  Ver 15.1 Distrib 5.5.40-MariaDB, for Linux (x86_64) using readline
5.1
--------------------------------------------------------------------------------------------------------------------

My aim is to create MySQL/MariaDB cluster using pacemaker DRBD on CentOS7.
Could you please guide me on this or provide any related articles ?

Regards,
Shameer


On Mon, Jan 12, 2015 at 6:20 AM, Andrew Beekhof <andrew at beekhof.net> wrote:

>
> > On 11 Jan 2015, at 5:39 pm, Shameer Babu <shameerbabukm at gmail.com>
> wrote:
> >
> > Hi,
> >
> > I have configured Apache cluster by referring you document
> http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf and it was good
> and working. Now I would like to configure a simple MySQL cluster using
> pacemaker,corosync,DRBD and Pcs in CentOS 7. I was trying add the mysql
> resource but didn't work.
>
> Could you be a bit more specific about "didn't work" ?
>
> > In CentOS 7 the database is MariaDB. I would like to configure the
> resource mysql/mariadb for two nodes. Can any body help me on this?
> >
> > I have configured the following till now:
> >
> > 1. Installed pcs,mariadb,pacemaker,corosync and DRBD
> > 2. Configured the resource Virtual IP and it is working fine
> > 3. Configured DRBD to sync files in both nodes and /dev/drbd1 is ready
> to use
> >
> > Please help me to configure the resource maraidb/mysql for my cluster
> >
> > Regards,
> > Shameer
> > _______________________________________________
> > Pacemaker mailing list: Pacemaker at 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
>
>
> _______________________________________________
> Pacemaker mailing list: Pacemaker at 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
>
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