[Linux-cluster] PCS Cluster

Nicola Contu Nicola.Contu at gtt.net
Fri Feb 1 09:59:42 UTC 2019


any news on this?

Is there anything else we can do to troubleshoot before this happens again?

From: Nicola Contu
Sent: Wednesday, January 30, 2019 4:08:20 PM
To: linux-cluster at redhat.com
Subject: Re: [Linux-cluster] PCS Cluster

I can give you the current arp table, but we do not log ARP so there’s no way to tell you what the table looked like at that particular time.
Or we need to wait for the next time if someone in Engineering is available to get an ARP (I am not maning routers unfortunately)

Do you want me to send you the current ARP?

From: linux-cluster-bounces at redhat.com <linux-cluster-bounces at redhat.com> on behalf of Michael Schwartzkopff <misch at schwartzkopff.org>
Sent: Wednesday, January 30, 2019 1:15:01 PM
To: linux-cluster at redhat.com
Subject: Re: [Linux-cluster] PCS Cluster

Am 30.01.19 um 09:59 schrieb Nicola Contu:
> Hello,
> I've setup a cluster using pacemaker and corosync for HA using HAProxy.
> Two resources : Haproxy and a floating IP.
> They are running on Centos7 on vmware.
> The strange thing that happens sometime is that the floating IP won't be pingable from outside the LAN.
> So for example, a server on the same LAN can ping it but me from my laptop can't.
> The resource is still active and up on the proxy owning the resource.
> Attached the log of corosync.
> Can anyone help?
> Thanks

It seems to be a network problem. What is the arp cache on the router
when this happens?

Mit freundlichen Grüßen,


Dr. Michael Schwartzkopff
Guardinistr. 63
81375 München

Tel: (0162) 1650044
Fax: (089) 620 304 13

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