[ClusterLabs] 2 Nodes Pacemaker for Nginx can only failover 1 time

[Digimer]

On 08/08/15 11:02 PM, jun huang wrote:
> Hello Everyone,
> 
> I setup a cluster with two nodes with pacemaker 1.1.10 on CentOS 7. Then
> I downloaded aresource agent for nginx from github
> <https://github.com/ClusterLabs/resource-agents/blob/master/heartbeat/nginx>
> 
> I tested my setup like this:
> 
>  1. Node 1 is started with the nginx and vip, everyting is ok
>  2. Kill Node1 nginx, wait for a few seconds
>  3. See the ngnix and vip are moved to node2, failover succeeded, and
>     Node1 doesn't have any resources active
>  4. I kill nginx on node2, but nginx and vip don't come back to Node1
> 
> I set |no-quorum-policy="ignore"| and |stonith-enabled="false"|.

Without fencing (stonith), the cluster will enter an undefined state
after a node fails and debugging becomes very difficult. Please
configure (and test!) stonith, then see if your problem remains.

> Why won't pacemaker let the resource come back to Node1? What did I miss
> here?
> 
> 
> I guess the node1 is still in some failure status, how can I recovery
> the node? Does anyone can shed some light on my questions? Thank you in
> advance.
> 
> Thanks,
> 
> Jacob
> 
> 
> 
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Digimer
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