incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From David Jeske <dav...@gmail.com>
Subject Re: Not all data structures need timestamps (and don't require wasted memory).
Date Mon, 12 Sep 2011 16:45:04 GMT
On Sat, Sep 3, 2011 at 8:26 PM, Kevin Burton <burton@spinn3r.com> wrote:

> The point is that replication in Cassandra only needs timestamps to handle
> out of order writes … for values that are idempotent, this isn't necessary.
>  The order doesn't matter.
>

I believe this is a mis-understanding of how idempotency applies to
Cassandra replication. If there were no timestamps stored, how would
read-repair work? There would be two different values with no way to tell
which was written second.

Mime
View raw message