On Wed, May 21, 2014 at 1:15 PM, Localhost shell < universal.localh...@gmail.com> wrote:
> > I am new to C* community. > > We are planning to use Datastax C* (pre 2.1) in production. We heavily > use counters and it is mostly what we do apart from storing the few months > raw logs in C*. > https://engineering.eventbrite.com/what-version-of-cassandra-should-i-run/ Most people using Cassandra Counters in production have some combo of low accuracy requirements, low update rate, or high update rate behind an in-memory accumulator which is flushed to Cassandra periodically. > 2. What were the major concerns (other than idempotency and overcount > due to timeout exceptions) in the pre 2.1 counters architecture that led > to a rewrite of counters implementation? > https://issues.apache.org/jira/browse/CASSANDRA-4417 And slowness... https://issues.apache.org/jira/browse/CASSANDRA-4775 and https://issues.apache.org/jira/browse/CASSANDRA-6504 have a lot of details/background. =Rob