2010/12/5 魏金仙 <sei_...@126.com> > for each sstable, there is an index file, which is loaded in memory to > locate a particular key's offset efficiently. >
Index files are not held in memory. > and for each CF, KeysCached can be set to cache keys' location. > could you pls tell me the difference between the two? > KeysCached are held in memory. > I'm wondering whether it's necessary to set "KeysCached" for a CF or not. > Not necessary, but advantageous. -Brandon
