yes, https://issues.apache.org/jira/browse/CASSANDRA-1302 thanks
On Wed, Nov 14, 2012 at 2:04 AM, Tyler Hobbs <ty...@datastax.com> wrote: > As far as I know, the row cache has never been populated by > get_range_slices(), only normal gets/multigets. The behavior is this way > because get_range_slices() is almost exclusively used to page over an > entire column family, which generally would not fit into the cache and > would simply a) ruin your cache if used for gets (b) generate a lot of > extra garbage, and (c) result in nothing but cache misses. > > With that said, I'm sure there are still a few use cases where using the > cache would be beneficial, so I'm sure there's a ticket out there somewhere > that presents a few options for supporting this. > > > On Thu, Nov 8, 2012 at 8:39 PM, Manu Zhang <owenzhang1...@gmail.com>wrote: > >> I did overlook something. get_range_slice will invoke cfs.getRawCachedRow >> instead of cfs.getThroughCache. Hence, no row will be cached if it's not >> present in the row cache. Well, this puzzles me further as to that how the >> range of rows is expected to get stored into the row cache in the first >> place. >> >> Would someone please clarify it for me? Thanks in advance. >> >> >> On Thu, Nov 8, 2012 at 3:23 PM, Manu Zhang <owenzhang1...@gmail.com>wrote: >> >>> I've asked this question before. And after reading the source codes, I >>> find that get_range_slice doesn't query rowcache before reading from >>> Memtable and SSTable. I just want to make sure whether I've overlooked >>> something. If my observation is correct, what's the consideration here? >> >> >> > > > -- > Tyler Hobbs > DataStax <http://datastax.com/> > >
