On 17 December 2013 20:40, Robert Coli <[email protected]> wrote: > On Tue, Dec 17, 2013 at 8:00 AM, Joel Segerlind <[email protected]> wrote: > >> Hi, >> >> I'm trying to decommission a node from a six node Cassandra 2.0.3 >> cluster, following the instructions at >> http://www.datastax.com/documentation/cassandra/2.0/webhelp/index.html#cassandra/operations/ops_remove_node_t.html >> > ... > >> When decommissioning nodes, would it be sufficient to run nodetool >> repair -pr on the node to be decommissioned? >> > > Not sure why those instructions would tell you to repair *before* removing > a node from the cluster? > > Decommission streams a nodes key to the new node responsible for the > range, why would a repair be required beforehand? >
I wondered the same thing, but I thought that the one writing that ought to know way better than me. > > >> The node has just short of 11GB data in one keyspace (RF=3), and the >> repair is taking forever (around 25 hours if it's keeping the current pace). >> > > Do you see it actually doing anything? > Sure, I'm tailing the system.log and it's about a third through atm. > > >> Re-reading the instructions I realized that I ran nodetool repair, >> instead of nodetool repair *keyspace_name*, but this can't have this >> kind of impact right? I ran nodetool repair -pr on the same node >> yesterday, and it took around 35 min. >> > > Do you use vnodes? > Yes. > > =Rob > >
