Absolutely. Best practice is still to disable swap entirely on server
machines; mlockall is just our best attempt to at least keep your JVM
from swapping if you've forgotten this.
On Thu, Apr 12, 2012 at 11:15 AM, Omid Aladini wrote:
> Hi,
>
> Cassandra issues an mlockall [1] before mmap-ing sst
On 4/12/12, Omid Aladini wrote:
> Cassandra issues an mlockall [1] before mmap-ing sstables to prevent
> the kernel from paging out heap space in favor of memory-mapped
> sstables. I was wondering, what happens to the off-heap row cache
> (saved or unsaved)? Is it possible that the kernel pages ou
Hi,
Cassandra issues an mlockall [1] before mmap-ing sstables to prevent
the kernel from paging out heap space in favor of memory-mapped
sstables. I was wondering, what happens to the off-heap row cache
(saved or unsaved)? Is it possible that the kernel pages out off-heap
row cache in favor of res
