> > De : Tyler Hobbs [mailto:ty...@datastax.com] > > Envoyé : mardi 16 octobre 2012 17:04 > > À : user@cassandra.apache.org > > Objet : Re: what happens while node is bootstrapping? > > > > On Mon, Oct 15, 2012 at 3:50 PM, Andrey Ilinykh <ailin...@gmail.com> wrote: > > Does it mean that during bootstrapping process only replicas serve > > read requests for new node range? In other words, replication factor > > is RF-1? > > No. The bootstrapping node will writes for its new range while bootstrapping > as consistency optimization (more or less), but does not contribute to the > replication factor or consistency level; all of the original replicas for > that range still receive writes, serve reads, and are the nodes that count > for consistency level. Basically, the bootstrapping node has no effect on > the existing replicas in terms of RF or CL until the bootstrap completes. > > -- > Tyler Hobbs > DataStax
Is it symmetric for the decommission ? Well, is it correct that: - during a decommission, all of the original replicas for that range still receive writes, serve reads, and are the nodes that count for consistency level ? - and so, basically, the decommissioning node has no effect on the existing replicas in terms of RF or CL until the end of decommission ? - as a consistency optimization, all the new replicas will receive too the writes ? Thanks. Regards, Dominique
