[ClusterLabs] DLM in the cluster can tolerate more than one node failure at the same time?
GHe at suse.com
Wed Oct 23 04:19:53 EDT 2019
Thank for your explanation.
Originally, there is concurrent fence feature in Pacemaker, you clear my doubt :-)
> -----Original Message-----
> From: Users [mailto:users-bounces at clusterlabs.org] On Behalf Of christine
> Sent: 2019年10月23日 15:09
> To: users at clusterlabs.org
> Subject: Re: [ClusterLabs] DLM in the cluster can tolerate more than one node
> failure at the same time?
> On 22/10/2019 07:15, Gang He wrote:
> > Hi List,
> > I remember that master node has the full copy for one DLM lock
> > resource and the other nodes have their own lock status, then if one node is
> failed(or fenced), the DLM lock status can be recovered from the remained
> node quickly.
> > My question is,
> > if there are more than one node which are failed at the same time, the DLM
> lock service for the remained nodes in the cluster can still continue to work
> after recovery?
> Yes. The local DLM keeps a copy of its own locks and the remaining DLM
> nodes will collaborate to re-master all of the locks that they know about. The
> number of nodes that leave at one time has no impact on this.
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