robert(at)urban4m(dot)com writes:
> 2013-11-05 17:04:21 EST LOG: server process (PID 5869) was terminated by
> signal 9: Killed
OOM killer, almost certainly. Check your kernel log to confirm.
Then read about preventing OOM kills:
http://www.postgresql.org/docs/9.3/static/kernel-resources.html#LINUX-MEMORY-OVERCOMMIT
regards, tom lane