I count the disk usage. I found that from nodetool information, space used (live) is about the nodetool ring info. space used(total) is about the disk usage.
thx On Thu, Dec 8, 2011 at 9:53 AM, 祝海通 <zhuhait...@gmail.com> wrote: > > We are testing the the performance of Cassandra for Big Data. Now I also > have the problem. From nodetool cfstats, the space used (live) is 7 times > than the Space used (total). Why? > > thx > > > > On Wed, Dec 7, 2011 at 5:58 PM, Dotan N. <dip...@gmail.com> wrote: > >> Hi, >> What kind of process did you use for loading 400GB of data? >> >> Thanks >> -- >> Dotan, @jondot <http://twitter.com/jondot> >> >> >> >> On Wed, Dec 7, 2011 at 5:57 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 >>> >> >> >
