hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "M. C. Srivas" <mcsri...@gmail.com>
Subject Re: incrementColumnValue
Date Wed, 12 Jan 2011 05:24:30 GMT
"increment" and "decrement" are not idempotent. Map/Reduce requires you do
things in an idempotent fashion (the same task may get executed multiple
times, even simultaneously).

On Tue, Jan 11, 2011 at 4:07 PM, Billy Pearson
<sales@pearsonwholesale.com>wrote:

> Is there a way to make a mapreduce job and use incrementColumnValue in
> place of Put?
>
> I am trying to move a job over from thrift and have to be able to use
> incrementColumnValue
> as a output but I can not seams to work it out with out calling HTable
> every map.
>
> small example would be nice if anyone uses it now
> Billy
>
>
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message