Jeff, When a node is no longer responding a process called hinted handoff[1] takes over and ensure that your N (replication) value is met by allowing other nodes to temporarily take responsibility for the vnodes of the downed node. This node can return to the cluster and will resume operations for the vnodes it’s primarily responsible for or you could remove the node[2] from the cluster which would redistribute the primary responsibly among the remaining nodes. I’d also give our docs on replication[3] a look for more information.
Seth Thomas [1] http://docs.basho.com/riak/latest/theory/concepts/glossary/#Hinted-Handoff [2] http://docs.basho.com/riak/latest/ops/running/nodes/adding-removing/#Removing-a-Node-From-a-Cluster [3] http://docs.basho.com/riak/latest/theory/concepts/Replication/ On March 24, 2014 at 9:33:17, Jeff Peck ([email protected]) wrote: Is there a description of what happens internally when a node goes down? I am curious if any there would be any sort of reshuffling or redistribution of data in the remaining vnodes? Or would the node simply be unavailable until restarted? Thanks, Jeff _______________________________________________ riak-users mailing list [email protected] http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
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