[CentOS] Clustering apache

[Dan Burkland]

> -----Original Message-----
> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
> Behalf Of Les Mikesell
> Sent: Wednesday, February 17, 2010 10:37 AM
> To: centos at centos.org
> Subject: Re: [CentOS] Clustering apache
> 
> On 2/17/2010 10:27 AM, Dan Burkland wrote:
> > I'm a greenhorn when it comes to clustering in RHEL/CentOS and recently
> > setup an active/standby clustering using Apache & Heartbeat. It seems to
> > be a good entry step into clustering however after testing it I was
> > disappointed in that the resource manager does not start httpd on node2
> > if httpd on node1 is dead (only starts httpd on node2 if the heartbeat
> > daemon on node1 is dead). Is there anyway to achieve this setup if not
> > with Heartbeat with some sort of other HA solution?
> 
> You can write your own service test(s) that would trigger failover (or
> just restart the failed service...).  Just do a 'service heartbeat stop'
> if you want the primary to hand off to the backup quickly.
> 
> --
>    Les Mikesell
>     lesmikesell at gmail.com
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Thank you all for your replies. In researching linux clustering more so I have discovered several other applications out there (primarily pacemaker, openais, and corosync). While I want to use pacemaker as my resource manager I am confused about openais & corosync. Is OpenAIS legacy and corosync the new current iteration? 

Thanks again for your help!