Hi All ,
Thanks all for the replies . Let me make myself clear . I should have added it in the original mail.
I did not configured manual fencing and our cluster was a two node cluster without any fencing device added . But when one of the nodes failed , the other node is
refusing to join the cluster . So , I was suggested (Not from Redhat Mailing List) to remove the node which failed using manual fencing commands (fence_manual etc ) . So , here I used manual fencing commands .
Now I want to add the failed node back to the cluster as the hardware issue is resolved . We had plans of adding IPMI LAN as fencing device but before that I need to add the node back to cluster which is failing . Plz share the steps to add the node back to cluster .
Thanks
Zaman
On Monday, 4 November 2013 11:30 PM, David Teigland <teigland@xxxxxxxxxx> wrote:
On Mon, Nov 04, 2013 at 09:31:08AM -0500, Digimer wrote:
> >>> We are having a node two cluster with manual fencing configuration .
> >>
> >> An HA cluster with manual fencing is no cluster at all.
> >
> > No. It is a cluster. But it provides no high availability.
>
> Let me echo Zama and Michael.
>
> Clusters without real fencing are not supported. Manual fencing was
> dropped because it's not reliable and it is way too easy for mistakes to
> happen.
>
> Please add real fencing. Test it to make sure it works. I expect
> things will start working fine then and you will have no trouble joining
> a node back to your cluster.
The dogmatic attitude against manual fencing is disturbing. It is a
perfectly legitimate and useful way to run a cluster as long as it's used
appropriately and with an understanding of how it works, the limitations
and tradeoffs.
Dave
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> >>> We are having a node two cluster with manual fencing configuration .
> >>
> >> An HA cluster with manual fencing is no cluster at all.
> >
> > No. It is a cluster. But it provides no high availability.
>
> Let me echo Zama and Michael.
>
> Clusters without real fencing are not supported. Manual fencing was
> dropped because it's not reliable and it is way too easy for mistakes to
> happen.
>
> Please add real fencing. Test it to make sure it works. I expect
> things will start working fine then and you will have no trouble joining
> a node back to your cluster.
The dogmatic attitude against manual fencing is disturbing. It is a
perfectly legitimate and useful way to run a cluster as long as it's used
appropriately and with an understanding of how it works, the limitations
and tradeoffs.
Dave
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Linux-cluster mailing list
Linux-cluster@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/linux-cluster
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