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From Joseph Stein <crypt...@gmail.com>
Subject Re: CounterColumn as a double
Date Mon, 27 Jun 2011 23:39:13 GMT
I will give that a shot, seems that it will work fantastically, thanks!

I will keep trolling JIRA then for something I feel I can get my feet wet
with and contribute then.

On Mon, Jun 27, 2011 at 7:33 PM, Jason Fager <jfager@gmail.com> wrote:

> Longs and Doubles are both 64-bit values and are pretty easily
> convertible.  Check out Double.doubleToLongBits and
> Double.longBitsToDouble in the JDK; you can also read more about the
> details of the conversion and get some pointers to some code in a post
> I wrote last year:
> http://jasonfager.com/770-lexi-sortable-number-strings/  (the emphasis
> is on using doubles in key strings, but it should cover what you
> need).
>
>
>
>
>
> On Mon, Jun 27, 2011 at 7:13 PM, Joseph Stein <cryptcom@gmail.com> wrote:
> > So has anyone considered using the CounterColumn for summing?
> >
> > I wanted to-do this over the weekend until I realized it was only a long
> :(
> > so using it for things like duration (as an example for me this would
> have
> > been great to keep track of aggregate durations of ad impressions) are
> not
> > possible (or total costs when processing business workflows, etc,etc).
> >
> > I thought this might be a little more the speed of a first contribution
> too
> > :) and also helps out with more functionality since a lot of real time
> > analytics will need double.
> >
> > Let me know, I think it is a good feature.
> >
> > Implementing it not sure we would want to break the thrift interface I
> would
> > suggest that I would create another interface for the double value?
> >
> > Under the hood of the thrift interface I was thinking of creating a
> > CounterValue class and then setting the lValue or the dValue depending on
> > which thrift function was called. I can update the thrift, add a sister
> > function and re-work the entire code path of long CounterColumn.value
> into
> > CounterValue CounterColumn.value.
> >
> > /*
> > Joe Stein
> > http://www.linkedin.com/in/charmalloc
> > Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
> > */
> >
>



-- 

/*
Joe Stein
http://www.linkedin.com/in/charmalloc
Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
*/

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