[ClusterLabs] Random failure with clone of IPaddr2

Ken Gaillot kgaillot at redhat.com
Thu Dec 15 15:15:21 EST 2016

On 12/15/2016 02:02 PM, alian at amisw.com wrote:
>> Seeing your configuration might help. Did you set globally-unique=true
>> and clone-node-max=3 on the clone? If not, the other nodes can't pick up
>> the lost node's share of requests.
> Yes for both, I have globally-unique=true, and I change clone-node-max=3
> to clone-node-max=2, and now, as I come back to old configuration, I come
> back to clone-node-max=3
> So now I have three node in the cluster.
> Here my config:
> primitive ip_apache_localnet ocf:heartbeat:IPaddr2 params ip="" 
> cidr_netmask="32" op monitor interval="30s"
> clone cl_ip_apache_localnet ip_apache_localnet \
>         meta globally-unique="true" clone-max="3" clone-node-max="1"

^^^ Here you have clone-node-max="1", which will prevent surviving nodes
from picking up any failed node's share of requests. clone-max and
clone-node-max should both stay at 3, regardless of whether you are
intentionally taking down any node.

> target-role="Started" is-managed="true"
>  sudo  /usr/sbin/iptables -L
> CLUSTERIP  all  --  anywhere             CLUSTERIP
> hashmode=sourceip-sourceport clustermac=A1:99:D6:EA:43:77 total_nodes=3
> local_node=2 hash_init=0
> and check I have different local_node on each node.
> And just a question. Is the mac adress "normal" ? Doesn't need to begin
> with 01-00-5E ?

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