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From Jonathan Shook <>
Subject Re: Implementing Counter on Cassandra
Date Tue, 29 Jun 2010 19:32:19 GMT
Until then, a pragmatic solution, however undesirable, would be to
only have a single logical thread/task/actor that is allowed to
read,modify,update. If this doesn't work for your application, then a
(distributed) lock manager may be used until such time that you can
take it out. Some are using ZooKeeper for this.

On Tue, Jun 29, 2010 at 11:45 AM, Ryan King <> wrote:
> On Tue, Jun 29, 2010 at 9:42 AM, Utku Can Top├žu <> wrote:
>> Hey Guys,
>> Currently in a project I'm involved in, I need to have some columns holding
>> incremented data.
>> The easy approach for implementing a counter with increments is right now as
>> I figured out is "read -> increment -> insert" however this approach is not
>> an atomic operation and can easily be corrupted in time.
>> Do you have any best practices in implementing an atomic counter on
>> Cassandra?

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