OK, thanks Aaron. I ask because NEWS.txt is not a big help in case of >
1.1.5 versions because there's no info on them in it (especially on
1.1.7 which seems to be the most important one in this case, according
to the DataStax' upgrade instructions) ;-)
https://github.com/apache/cassandra/blob/trunk/NEWS.txt
M.
W dniu 11.02.2013 11:05, aaron morton pisze:
You can always run them. But in some situations repair cannot be used, and in
this case new nodes cannot be added. The news.txt file is your friend there.
As a general rule when upgrading a cluster I move one node to the new version
and let it soak in for an hour or so. Just to catch any crazy. I then upgrade
all the nodes and run through the upgrade table. You can stagger upgrade table
to be every RF'th node in the cluster to reduce the impact.