On Sat, Nov 5, 2011 at 1:31 PM, Jake Maizel <j...@soundcloud.com> wrote: > If we upgrade and want to use compression, how is the old data handled? > Does it read and then write all sstables out to new compressed files one at > a time or do something else? I'm considering the storage require on top of > what is needed for the existing data.
Any newly written sstable (from a memtable flush, compaction, etc) will have compression enabled. Since you'll need to scrub after upgrading for streaming to work, this will result in all the sstables being compressed. -Brandon
