thx, it does say that in the log, but that is probably just a
reflection of whatever is read from cassandra.yaml.
i am wondering if some unix tool can tell me if my process is mmap'ing
files. maybe lsof?
On 10/14/2010 12:07 PM, Rob Coli wrote:
On 10/14/10 10:59 AM, B. Todd Burruss wrote:
0.7.0-beta2
top is reporting my cassandra process as using 11g. i have set
"disk_access_mode: standard" and Xmx8G (verified via JMX)
i have only noticed using more RAM than Xmx when using mmap i/o. this
leads me to believe that disk_access_mode was not set properly, even
though it is in the config. is there a way to verify this via JMX? (or
some other way)
There is a log message at startup which will tell you the DiskAccessMode
and IndexAccessMode in use. It looks like..
INFO 16:46:06,875 DiskAccessMode 'auto' determined to be mmap,
indexAccessMode is mmap
=Rob
