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From Paul Prescod <pres...@gmail.com>
Subject Re: if cassandra isn't ideal for keep track of counts, how does digg count diggs?
Date Sun, 11 Apr 2010 21:28:47 GMT
On Sun, Apr 11, 2010 at 3:30 AM, Mark Robson <markxr@gmail.com> wrote:
> Can we not implement counts by just storing all the deltas in a row, and
> then summing them all up to acheive a count.
>
> If a row ends up with too many deltas, a reader could just summarise the
> deltas occasionally into a single value (in a way which avoids race
> conditions, of course).

How do you avoid the race condition? Don't you need a lock?

 Paul Prescod
 Ayogo, Inc.

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