[ClusterLabs] IPaddr2 works for 12 seconds then stops

Ken Gaillot kgaillot at redhat.com
Tue Nov 13 20:16:00 UTC 2018


On Tue, 2018-11-13 at 18:41 +0100, Valentin Vidic wrote:
> On Tue, Nov 13, 2018 at 11:01:46AM -0600, Ken Gaillot wrote:
> > Clone instances have a default stickiness of 1 (instead of the
> > usual 0)
> > so that they aren't needlessly shuffled around nodes every
> > transition.
> > You can temporarily set an explicit stickiness of 0 to let them
> > rebalance, then unset it to go back to the default.
> 
> Thanks, this works as expected now:
> 
>   clone cip-clone cip \
>         meta clone-max=2 clone-node-max=2 globally-unique=true
> interleave=true \
>              resource-stickiness=0 target-role=Started
> 
> Clone instance moves when a node is down but also returns when the
> node
> is back online.
> 
> Do you perhaps know if CLUSTERIP has any special network requirements
> to
> work properly?

Yes, the switch must support multicast MAC (which is different from
multicast IP). Sometimes this is an option that must be turned on.
-- 
Ken Gaillot <kgaillot at redhat.com>


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