If you use your off heap memory linux has an OOM killer, that will kill a random tasks.

On Fri, May 10, 2013 at 11:34 AM, Bryan Talbot <btalbot@aeriagames.com> wrote:
If off-heap memory (for indes samples, bloom filters, row caches, key caches, etc) is exhausted, will cassandra experience a memory allocation error and quit?  If so, are there plans to make the off-heap usage more dynamic to allow less used pages to be replaced with "hot" data and the paged-out / "cold" data read back in again on demand?


On Wed, May 8, 2013 at 4:24 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
index_interval won't be going away, but you won't need to change it as
often in 2.0: https://issues.apache.org/jira/browse/CASSANDRA-5521

On Mon, May 6, 2013 at 12:27 PM, Hiller, Dean <Dean.Hiller@nrel.gov> wrote:
> I heard a rumor that index_interval is going away?  What is the replacement for this?  (we have been having to play with this setting a lot lately as too big and it gets slow yet too small and cassandra uses way too much RAM…we are still trying to find the right balance with this setting).
> Thanks,
> Dean

Jonathan Ellis
Project Chair, Apache Cassandra
co-founder, http://www.datastax.com