since SSTABLEs are immutable, it must create new SSTABLEs without the data that the node is no longer a replica for ... but it doesn't remove deleted data. seems like a possible optimization to also removed deleted data and tombstone cleanup ... but i guess cleanup shouldn't really be used that much.
thx On Tue, Oct 23, 2012 at 12:40 AM, aaron morton <aa...@thelastpickle.com> wrote: > what is the internal memory model used? It sounds like it doesn't have a > page manager? > > Nodetool cleanup is a maintenance process to remove data on disk that the > node is no longer a replica for. It is typically used after the token > assignments have been changed. > > Cheers > > ----------------- > Aaron Morton > Freelance Developer > @aaronmorton > http://www.thelastpickle.com > > On 23/10/2012, at 6:42 PM, Will @ SOHO <w...@voodoolunchbox.com> wrote: > > On 10/23/2012 01:25 AM, Peter Schuller wrote: > > > On Oct 22, 2012 11:54 AM, "B. Todd Burruss" <bto...@gmail.com> wrote: >> >> does "nodetool cleanup" perform a major compaction in the process of >> removing unwanted data? > > No. > > what is the internal memory model used? It sounds like it doesn't have a > page manager? > >
