Yes, incremental mode is definitely contraindicated for Cassandra. On Wed, Apr 28, 2010 at 1:07 AM, Peter Schuller <peter.schul...@infidyne.com> wrote: >> -XX:+CMSIncrementalMode \ >> -XX:+CMSIncrementalPacing \ > > This may not be an issue given your other VM opts, but just FYI I > have had some difficulty making the incremental CMS mode perform GC > work sufficiently aggressively to avoid concurrent mode failures > during significant garbage generation. > > You may want to give CMS a try in non-incremental mode (i.e., the > concurrent mark phase will be done in one burst, rather than spread > out over time, but still concurrently). > > -- > / Peter Schuller >
-- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
