Just to check, do you have JNA setup correctly? (You should see a couple of log messages about it shortly after startup.)  Truncate also performs a snapshot by default.

On Wed, Jun 6, 2012 at 12:38 PM, Poziombka, Wade L <wade.l.poziombka@intel.com> wrote:

However, after all the work I issued a truncate on the old column family (the one replaced by this process) and I get an out of memory condition then.

Tyler Hobbs