FWIW: http://thelastpickle.com/blog/2016/02/25/removing-a-disk-mapping-from-cassandra.html
I know it is not exactly what you want, but I believe it might be useful. C*heers, ----------------------- Alain Rodriguez - al...@thelastpickle.com France The Last Pickle - Apache Cassandra Consulting http://www.thelastpickle.com 2016-03-09 14:20 GMT+01:00 Krzysztof Księżyk <kksie...@gmail.com>: > Robert Coli <rcoli <at> eventbrite.com> writes: > > > > > On Mon, Mar 7, 2016 at 2:57 AM, Krzysztof Księżyk <kksiezyk <at> > gmail.com> wrote:I see on lsof output that even if keyspace > > is not queried, Cassandra keeps files opened, so I guess it's not safe to > > hotswap, but I'd like to make sure. > > > > > > It is not safe for exactly this reason. Just restart your nodes. > > > > Were I doing this process, I would : > > > > 1) do initial rsync > > 2) stop node > > 3) do rsync again, with --delete for files which are no longer in the > source. This is very important, or you risk resurrecting SSTables which > have already been compacted away, which can be PERMANENTLY FATAL TO THE > CONSISTENCY OF ALL INVOLVED DATA. > > 4) start node > > > > =Rob > > > > > > Hi, > > Thanks for answer. I do it exactly this way. > > Kind regards - > Krzysztof Ksiezyk >
