in the Cassandra wiki, I found this " ColumnFamilyStoreMBean exposes sstable space used as getLiveDiskSpaceUsed (only includes size of non-obsolete files) and getTotalDiskSpaceUsed (includes everything)." maybe this is the answer.
On Wed, Dec 7, 2011 at 11:57 AM, 祝海通 <zhuhait...@gmail.com> wrote: > hi,all > > We are using Cassandra 1.0.2. I am testing the TTL with loading 400G. > When all the data are expired, I waited for some hours. > Later, the nodetool ring is still have 90GB. So I made a major compaction. > Then there are 30GB from the nodetool ring. After I saw the file system,I > found there are zero sstable. > I don't know where comes the 30GB? > > Best Regards >
