Without exception the timestamp is set by the client, not the server. The one 
exception to the without exception rule is CounterColumnType operations. 

If you are in a situation where you need better timing than you can get with 
ntp you should try to design around it. 
 
Hope that helps. 
-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com

On 28 Jun 2011, at 10:03, A J wrote:

> During writes, the timestamp field in the column is the system-time of
> that node (correct me if that is not the case and the system-time of
> the co-ordinator is what gets applied to all the replicas).
> During reads, the latest write wins.
> 
> What if there is a clock skew ? It could lead to a stale write
> over-riding the actual latest write, just because the clock of that
> node is ahead of the other node. Right ?

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