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Posted to user@cassandra.apache.org by Ajay <aj...@gmail.com> on 2015/07/09 08:17:07 UTC

Cassandra counters

Hi,

What is the accuracy improvement of counter in 2.1 over 2.0?

This below post, it mentioned 2.0.x issues fixed in 2.1 and perfomance
improvement.
http://www.datastax.com/dev/blog/whats-new-in-cassandra-2-1-a-better-implementation-of-counters

But how accurate are the counter 2.1.x or any known issues in 2.1 using
UNLOGGED batch for counter update?

Thanks
Ajay

Re: Cassandra counters

Posted by Ajay <aj...@gmail.com>.

Any pointers on this?.

In 2.1, when updating the counter with UNLOGGED batch using timestamp isn't
safe as other column update with consistency level (with timestamp counter
update can be idempotent? ).

Thanks
Ajay

On 09-Jul-2015 11:47 am, "Ajay" <aj...@gmail.com> wrote:
>
> Hi,
>
> What is the accuracy improvement of counter in 2.1 over 2.0?
>
> This below post, it mentioned 2.0.x issues fixed in 2.1 and perfomance
improvement.
>
http://www.datastax.com/dev/blog/whats-new-in-cassandra-2-1-a-better-implementation-of-counters
>
> But how accurate are the counter 2.1.x or any known issues in 2.1 using
UNLOGGED batch for counter update with timestamp?
>
> Thanks
> Ajay