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From Robert Coli <rc...@eventbrite.com>
Subject Re: Lightweight transaction (paxos) vs double check.
Date Wed, 13 Aug 2014 18:10:35 GMT
On Wed, Aug 13, 2014 at 9:16 AM, Wayne Schroeder <
wschroeder@pinsightmedia.com> wrote:

> Are there hidden costs to LWT (paxos) that are not represented in the
> total time and number of operations?  For example, are there some
> under-the-hood locks that could cause contention issues when processing
> significant quantities of LWT under load?
>

"Transactions" are not the sweet spot of a distributed log structured
database with immutable datafiles, LWT comes at a significant cost compared
to other operations in Cassandra.

Put another way, lunch is still not free. :D

=Rob

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