[ClusterLabs] How to set Two active servers(Masters) using Pacemaker

[Andrei Borzenkov]

В Thu, 23 Apr 2015 02:06:31 +0530
"Sayed Mujtaba" <mujtaba at riversilica.com> пишет:

> Hi ,
> 
> I went through the material but could not find any option to set two nodes
> as Active .Can someone let me know How to set two nodes as Active servers ?
> 
>  

You misunderstand. Nodes themselves are not active or passive (with the
only exception of standby) - they are just nodes. Individual
applications that you want to run under pacemaker control may have
notion of master and slave instances; in this case it is up to you to
define on which nodes which instances are allowed to run. 

> 
> Thanks
> 
> -Mujtaba
> 
>  
> 
>  
> 
> From: Sayed Mujtaba [mailto:mujtaba at riversilica.com] 
> Sent: Wednesday, April 22, 2015 6:15 PM
> To: 'Cluster Labs - All topics related to open-source clustering welcomed'
> Subject: [ClusterLabs] How to set Two active servers(Masters) using
> Pacemaker
> 
>  
> 
> Hi ,
> 
>  
> 
> I am trying to form 3 node cluster using pacemaker  .  I want to take two
> nodes a Master (Active nodes) and one as backup node .
> 
> Is there any configuration step to tell it have two as Active servers?
> 
>  
> 
> Below is snp shot of my 3 node cluster ..
> 
>  
> 
>  
> 
>  
> 
> [root at localhost ~]# pcs status
> 
> Cluster name: mycluster
> 
> Last updated: Wed Apr 22 05:28:27 2015
> 
> Last change: Tue Apr 21 15:01:40 2015 via crmd on node2
> 
> Stack: corosync
> 
> Current DC: node2 (2) - partition with quorum
> 
> Version: 1.1.10-32.el7_0.1-368c726
> 
> 3 Nodes configured
> 
> 2 Resources configured
> 
>  
> 
>  
> 
> Online: [ node1 node2 node3 ]
> 
>  
> 
> Full list of resources:
> 
>  
> 
> ClusterIP      (ocf::heartbeat:IPaddr2):       Started node1
> 
> WebSite        (ocf::heartbeat:apache):        Started node1
> 
>  
> 
> PCSD Status:
> 
>   node1: Online
> 
>   node2: Online
> 
>   node3: Online
> 
>  
> 
> Daemon Status:
> 
>   corosync: active/disabled
> 
>   pacemaker: active/disabled
> 
>   pcsd: active/enabled
>