On Thu, Oct 14, 2010 at 7:36 PM, Henry Luo <h...@choicestream.com> wrote: > Thanks for the advice. Follow up questions: > > a) is 0.6.6 compactable with 0.6.1?
Yes, you can upgrade one node at a time and it will particpate w/ the 0.6.1 nodes until they are done too. Just restart w/ 0.6.6, no data migration or commitlog drain needed. No api changes were made. > Do we need to change the config? You should look at the changes because some defaults were improved. I don't think any are mandatory but I wouldn't swear to it. > b) Should we wait for 0.7? If so, same questions above. 0.7 can read 0.6 data files but is not a drop-in replacement. See "Upgrading" in https://svn.apache.org/repos/asf/cassandra/trunk/NEWS.txt -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
