It should do, this is the comment from the yaml

#     - keys_cached: specifies the number of keys per sstable whose
#        locations we keep in memory in "mostly LRU" order.  (JUST the key
#        locations, NOT any column values.) Specify a fraction (value less
#        than 1) or an absolute number of keys to cache.  Defaults to 200000
#        keys.

Is it not working?
Aaron


On 26 Oct, 2010,at 08:45 AM, "Damick, Jeffrey" <Jeffrey.Damick@neustar.biz> wrote:

Does 0.7 not support percentages in the keys_cached (in the yaml config)?  (Iím on 0.7.0b2 so maybe it has been fixed?)

thanks