[Pacemaker] Howto recover from unclan (online)

Kashif Jawed Siddiqui kashifjs at huawei.com
Wed Jan 16 09:05:13 EST 2013

Hi Dejan/Andrew

Can you list down the possible scenarios in which the Node state changes to online (UNCLEAN).

I have encountered this few times, but I would like to know the possible scenarios for reproducing the same.

Kashif Jawed Siddiqui

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From: Michael Schwartzkopff [misch at clusterbau.com]
Sent: Wednesday, January 16, 2013 6:44 PM
To: The Pacemaker cluster resource manager
Subject: Re: [Pacemaker] Howto recover from unclan (online)

Am Mittwoch, 16. Januar 2013, 14:07:15 schrieb Dejan Muhamedagic:

> Hi,


> On Tue, Jan 15, 2013 at 08:28:29PM +0100, Michael Schwartzkopff wrote:

> > Hi,

> >

> > any good advice from the following state of a cluster:

> >

> > unclean (online) state and lots of errors of the resources on one node

> >

> > and a shutdown second node?

> >

> > On the first node all resources running happily and the cluster provides

> > the serives it was designed for. Due to really bad network cards the

> > cluster ran into that state.

> >

> > Now: How to recover from that state


> crm node clearstate ? But first make sure that the cluster stack

> is stopped on that node.

thanks. That was what I was looking for.

> > And yes. We have a enterprise distribution and a good hardware

> > manufacturer.

> How did the bad network cards creep in? ;-)

They were shipped in the <well known HW manufacturer> blade. :-(


Dr. Michael Schwartzkopff

Guardinistr. 63

81375 München

Tel: (0163) 172 50 98
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