"the total amount of traffic that has gone into the Memtable" is how throughput is defined, so this is working as expected.
On Tue, May 24, 2011 at 11:15 AM, Yang <teddyyyy...@gmail.com> wrote: > if you have only counter columns in your keyspace, and do a lot of > updates on a few keys, > the getLiveSize() of memtable actually returns the total amount of > traffic that has gone into the Memtable, > not the real size, > so you end up producing very small SStables, with only a few KBytes. > (I have already changed the CF.memtable_throughput memtable_operations > memtable_flush_after params ) > > > > this can be changed easily by modifying the CounterColumn.resolve() so > that it updates the > currentThroughput with the ***difference **** of old column size and > new column size, not just the size of new column. -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
