I don't know of any such data collected by DataStax - it's not like we're
the NSA, sniffing all requests.
ONE is certainly fast, but only fine if you don't have immediate need to
read the data or don't need the absolutely most recent value.
To be clear, even QUORUM write is eventual consistency - to all nodes beyond
the immediate quorum.
-- Jack Krupansky
-----Original Message-----
From: William Katsak
Sent: Wednesday, October 8, 2014 12:27 PM
To: user@cassandra.apache.org
Subject: Consistency Levels
Hello,
I was wondering if anyone (Datastax?) has any usage data about
consistency levels. For example, what consistency levels are real
applications using in real production scenarios. Who is using eventual
consistency (ONE-ONE) in production vs strong consistency
(QUORUM-QUORUM, ONE-ALL). Obviously it depends on the application, but I
am trying to collect some information on this.
I saw the talk from Christos Kalantzis (from Cassandra13 I think) about
Netflix using eventual consistency, but I was wondering if there is any
more data out there.
Thanks in advance,
Bill Katask
Ph.D. Student
Department of Computer Science
Rutgers University
