Thanks, folks. I think I must have read compaction, thought cleanup, and gotten muddled from there.
David On Nov 30, 2011 6:45 PM, "Edward Capriolo" <[email protected]> wrote: > Your understanding of nodetool cleanup is not correct. cleanup is used > only after cluster balancing like adding or removing nodes. It removes data > that does not belong on the node anymore (in older versions it removed > hints as well) > > Your debate is needing to run companion . In a write only workload you > should let cassandra do its normal connection.(in most cases) > > On Wednesday, November 30, 2011, David McNelis <[email protected]> > wrote: > > In my understanding Cleanup is meant to help clear out data that has > been removed. If you have an environment where data is only ever added > (the case for the production system I'm working with), is there a point to > automating cleanup? I understand that if we were to ever purge a segment > of data from our cluster we'd certainly want to run it, or after added a > new node and adjusting the tokens. > > So I want to make sure I'm not missing something here and that there > would be other reasons to run cleanup regularly? > > > > -- > > David McNelis > > Lead Software Engineer > > Agentis Energy > > www.agentisenergy.com > > c: 219.384.5143 > > A Smart Grid technology company focused on helping consumers of energy > control an often under-managed resource. > > > >
