Fix Version/s: None
In 1.1, row level isolation was added. As per the blog post
"Cassandra guarantees that the changes to login and password are either both applied or none are."
This is not true with background read repair. Consider this as given in the blog post.
SET login='eric22' AND password='f3g$dq!'
There are 3 machines A,B and C and replication is RF=3
1) Machine A did not get this update as it was down and past hint window.
2) Machine A comes online.
3) You now only read the password.
4) password is now read repaired on A.
SO on machine A, password = f3g$dq! and login is still old