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ODL clustering with 2 nodes?

asked 2015-06-02 09:14:25 -0700

Martin gravatar image

updated 2015-06-02 09:16:24 -0700

How could I achieve HA clustering with 2 ODL controllers?

I know that in Helium you must use at least 3 nodes because you need majority of the shards to function after one of the nodes fails. But can I configure the cluster so that every node will have all data, not just it's ''shard''? So that I could have HA even with 2 nodes? Even if one of them would have to be on standby.

Can something like this be configured through OpenDaylight clustering, or can I use another software to cluster 2 ODL nodes and still have HA?


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answered 2015-06-30 09:55:29 -0700

moraja gravatar image

Martin, currently we do not support 2 Node clusters for HA as any one node going down would render the cluster unavailable. Could you please explain your use case? I know that there have been others who have wanted this kind of facility - but I am not sure how the cluster is expected to work.

Currently our data is strongly consistent - would you be ok with eventual consistency? Would you be able to tolerate some data loss in the case of a double failure?

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Asked: 2015-06-02 09:14:25 -0700

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Last updated: Jun 30 '15