The DiskAccessMode is set to auto.
I am going to try with standard and see, but i am concerned how much that
would affect performance negatively.
thx
Amit
On Wed, Jul 21, 2010 at 3:59 PM, Aaron Morton wrote:
> Are you using mmap or auto DiskAccessMode ?
>
> There is a known issue with memory map
> We are seeing cassandra using very high virtual memory. One server in the
> cluster shows 90GB and the other shows about 70GB of committed virtual
> memory.
> The real memory used is less than 1GB. The Xmx is 4GB. The physical memory
> on the machine is 32GB and the swap space on the machine is a
Are you using mmap or auto DiskAccessMode ?There is a known issue with memory mapped file access taking up a lot of memory. See CASSANDRA-1214 https://issues.apache.org/jira/browse/CASSANDRA-1214 there is also some discussion in the mail list here. Try setting the DiskAccessMode to standardAaronOn
