the only place we use a java serializer is for the BitSet in bloom filters.
On Tue, May 25, 2010 at 12:37 PM, Chris Goffinet <goffi...@digg.com> wrote: > My money is on the fact that the serializer is just horribly verbose. It's > using a basic set of the java serializer. > -Chris > > > On Tue, May 25, 2010 at 10:02 AM, Ryan King <r...@twitter.com> wrote: >> >> Also, timestamps for each column. >> >> -ryan >> >> On Tue, May 25, 2010 at 5:41 AM, Jonathan Ellis <jbel...@gmail.com> wrote: >> > That's true. But fundamentally Cassandra is expected to use more >> > space than mysql for a few reasons; usually the biggest factor is that >> > Cassandra has to write out each column name in each row, since column >> > names are dynamic unlike in mysql where you declare the columns once >> > for the whole table. >> > >> > 2010/5/25 Peter Schüller <sc...@spotify.com>: >> >>> Could you please tell me why? >> >> >> >> There might be pending sstable removals on disk, which won't happen >> >> until GC or restart. If you just did a bulk insert and checked >> >> diskspace immediately afterwards, I think this is a possible >> >> explanation. >> >> >> >> (See "Write path" on >> >> http://wiki.apache.org/cassandra/ArchitectureInternals) >> >> >> >> -- >> >> / Peter Schuller aka scode >> >> >> > >> > >> > >> > -- >> > Jonathan Ellis >> > Project Chair, Apache Cassandra >> > co-founder of Riptano, the source for professional Cassandra support >> > http://riptano.com >> > > > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
