Have you tried running "ulimit -a" as the Cassandra user instead of as root? It is possible that your configured a high file limit for root but not for the user running the Cassandra process.
On Sun, May 4, 2014 at 6:07 PM, Yatong Zhang <bluefl...@gmail.com> wrote: > [root@storage5 ~]# lsof -n | grep java | wc -l >> 5103 >> [root@storage5 ~]# lsof | wc -l >> 6567 > > > It's mentioned in previous mail:) > > > On Mon, May 5, 2014 at 9:03 AM, nash <nas...@gmail.com> wrote: > >> The lsof command or /proc can tell you how many open files it has. How >> many is it? >> >> --nash >> > >
