On Wed, Jan 22, 2014 at 11:13 PM, Katriel Traum <katr...@google.com> wrote:
> I was if anyone has any pointers or some advise regarding using row cache > vs leaving it up to the OS buffer cache. > > I run cassandra 1.1 and 1.2 with JNA, so off-heap row cache is an option. > Many people have had bad experiences with Row Cache, I assert more than have had a good experience. https://issues.apache.org/jira/browse/CASSANDRA-5357 Is the 2.1 era re-design of the row cache into something more conceptually appropriate. The rule of thumb for row cache is that if your data is : 1) very hot 2) very small 3) very uniform in size You may win with it. IMO if you meet all of those criteria you should try A/B the on-heap cache vs. off-heap in 1.1/1.2, especially if your cached rows are frequently updated. https://issues.apache.org/jira/browse/CASSANDRA-5348?focusedCommentId=13794634&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13794634 =Rob
