I discovered that a Garbage collection cleans up the unused old SSTables. But I still wonder whether cleanup really does a full compaction. This would be undesirable if so.
On Apr 1, 2011, at 4:08 PM, Jonathan Colby wrote: > I ran node cleanup on a node in my cluster and discovered the disk usage went > from 3.3 GB to 5.4 GB. Why is this? > > I thought cleanup just removed hinted handoff information. I read that > *during* cleanup extra disk space will be used similar to a compaction. But > I was expecting the disk usage to go back down when it finished. > > I hope cleanup doesn't trigger a major compaction. I'd rather not run major > compactions because it means future minor compactions will take longer and > use more CPU and disk. > >
