Thanks Jonathan! I looked into your code and guessed that compaction is the one that cleans all deleted columns from sstable.
-Weijun On Fri, Mar 12, 2010 at 12:05 PM, Jonathan Ellis <jbel...@gmail.com> wrote: > I think you mean compaction? > > You can use nodeprobe / nodetool for that. > > http://wiki.apache.org/cassandra/NodeProbe > > On Fri, Mar 12, 2010 at 12:40 PM, Weijun Li <weiju...@gmail.com> wrote: > > Suppose I insert a lot of new items but also delete a lot of new items > > daily, it will be ideal if I can force GC to happen during mid night > (when > > traffic is low). Is there any way to manually force GC to be executed? In > > this way I can add a cronjob to trigger gc in mid night. I tried nodetool > > and the JMX interface but they don't seem to have that. > > > > -Weijun > > >