Yes, please see http://wiki.apache.org/cassandra/FAQ#dropped_messages for further details.
Mark On Fri, May 9, 2014 at 12:52 PM, Raveendran, Varsha IN BLR STS < varsha.raveend...@siemens.com> wrote: > Hello, > > I am writing around 10Million records continuously into a single node > Cassandra (2.0.5) . > In the Cassandra log file I see an entry “*272 MUTATION messages dropped > in last 5000ms*” . Does this mean that 272 records were not written > successfully? > > Thanks, > Varsha > >