Data consistency in the cloud is a totally different ball game - as perfectly illustrated by
this newsletter issue from ZapThink. Essentially, you have to cope with some form of partition tolerance and stale data values in caches. This is usually summarized as the
CAP issue (for more details, see the ZapThink post).
Luckily, the solution to the problem can be as simple as outlined in
our solution to the CAP problem.
Life is good