[ClusterLabs] pacemaker doesn't failover when httpd killed

Nurit Vilosny nuritv at mellanox.com
Mon Sep 5 09:26:34 EDT 2016

Perfect! I did missed it. Thanks for the help!!

-----Original Message-----
From: Kristoffer Grönlund [mailto:kgronlund at suse.com] 
Sent: Monday, September 05, 2016 3:27 PM
To: Nurit Vilosny <nuritv at mellanox.com>; users at clusterlabs.org
Subject: RE: [ClusterLabs] pacemaker doesn't failover when httpd killed

Nurit Vilosny <nuritv at mellanox.com> writes:

> Here is the configuration for the httpd:
> # pcs resource show cluster_virtualIP
> Resource: cluster_virtualIP (class=ocf provider=heartbeat type=IPaddr2)
>   Attributes: ip=
>   Operations: monitor interval=20s (cluster_virtualIP-monitor-interval-20s)
>               start interval=0s timeout=20s (cluster_virtualIP-start-interval-0s)
>               stop interval=0s timeout=20s on-fail=restart 
> (cluster_virtualIP-stop-interval-0s)
> (yes - I have monitoring configured and yes I used the ocf)

Hi Nurit,

That's just the cluster resource for managing a virtual IP, not the resource for managing the httpd daemon itself.

If you've only got this resource, then there is nothing that monitors the web server. You need a cluster resource for the web server as well (ocf:heartbeat:apache, usually).

You are missing both that resource and the constraints that ensure that the virtual IP is active on the same node as the web server. The Clusters from Scratch document on the clusterlabs.org website shows you how to configure this.


// Kristoffer Grönlund
// kgronlund at suse.com

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