kapil bhosale 2012-08-13, 03:36
-Re: Using Distributed Cache in PIG
Dmitriy Ryaboy 2012-08-13, 23:49
You are talking about changing the way hadoop works; something like
this would be transparent to Pig.
Note that Hadoop Distributed Cache != "distributed memory cache".
I suppose you could replace the value of fs.file.impl from
org.apache.hadoop.fs.LocalFileSystem to something else.. might be
quite an endeavor.
On Sun, Aug 12, 2012 at 8:36 PM, kapil bhosale <[EMAIL PROTECTED]> wrote:
> Can we use Distributed Cache to store intermediate results after the Map
> Phase so that these can be used in Reduce phase from cache.
> So as to improve performance of Map-Reduce Job.
> I found a Paper regarding usage of Cache in Map-Reduce,
> if Hadoop Map-Reduce can be improved with Cache then ultimately Pig script
> running in Map-Reduce can be improved.