Re: [Openstack] HA with pacemaker on Folsom

Razique Mahroua Tue, 16 Apr 2013 13:42:32 -0700

Hi Jean-Daniel,

they have the default UID that were given to them when they were created on the system - so it' s not the same on both. As for the user, the mysql dir belongs to the mysql user and the rabbitmq to the rabbitmq user

MySQL : 700 (/var/lib/mysql)

RabbitMQ : 755 (/var/lib/rabbitmq)

Regards,

Razique Mahroua - Nuage & Co

[email protected]

Tel : +33 9 72 37 94 15

Le 16 avr. 2013 à 06:38, Jean-Daniel BUSSY <[email protected]> a écrit :

A
re your mysql users have same id? What are the permissions of in your drbd fs when mounted on the master node?

BUSSY Jean-Daniel

On Tue, Apr 16, 2013 at 10:39 AM, Jean-Daniel BUSSY <[email protected]> wrote:

H
i Razique,

I am using ubuntu 12.04.2.
My corosync configuration file is
http://paste2.org/IBY38WwM

I am using the interface of the address
172.16.1.13
and f
Foreground corosync is launching fine and using the default configuration file fine.
It's quite confusing

BUSSY Jean-Daniel
Cloud Engineer | GREE
Mobile: +81 090-3317-1337
Email: [email protected]

Mobile mail: [email protected]

On Tue, Apr 16, 2013 at 2:37 AM, Razique Mahroua <[email protected]> wrote:

Hi Jean-Daniel,
the script works fine for me - I never bothered about the UIDs, which OS are you running?
Regards,
Razique Mahroua - Nuage & Co
[email protected]
Tel : +33 9 72 37 94 15

<NUAGECO-LOGO-Fblan_petit.jpg>

Le 15 avr. 2013 à 18:30, Jean-Daniel BUSSY <[email protected]> a écrit :

Hi stackers,

I am trying the Pacemaker approach to integrate HA to folsom on ubuntu 12.04.2
I followed the guide at http://docs.openstack.org/trunk/openstack-ha/content/ch-controller.html

This is my first try with Pacemaker so I think I am missing something trivial here:

Mysql HA
Machine A have mysql:x:105:111:MySQL Server,,,:/nonexistent:/bin/false

Machine B have mysql:x:106:112:MySQL Server,,,:/nonexistent:/bin/false

is uid of the files in drbd0 is set to uid 105 the failover will only work on Machine A
if uid is set to 106, then failover will only work on Machine B

(to trigger failover I stop pacemaker and corosync service)

Should the Machine A and B's mysql user share the same UID?

Should I set pacemaker to change the userid befre starting the service first? Is that possible?
I couldn't get corosync fired up with the upstart script and have to fire it on the frontend. Is the service script working for you?

cheers

BUSSY Jean-Daniel

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Re: [Openstack] HA with pacemaker on Folsom

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