Matt,
Neither of the books have much information about the new MR API. I was
reading the 'Hadoop - The Definitive Guide' and came across a single pager
on new API. I wanted to try the new MR, but could not find much information
neither in the book nor on the internet.
Thanks,
Praveen
On Sat, Sep
Hi Jun Tun,
Yeah ! surely...
Well the code i gave is the new API.
2011/9/24 谭军
> Hi Swathi.V.,
> Thank you very much.
> It's very kind of you to do that.
> I think the code you gave is implemented in old APIs.
> I made it several days ago. What I can't is by new APIs.
> I just get started to ma
Praveen,
Functionality wise you don't gain much from using the new API and most would
actually recommend that you stay with the old API as it will not be
"officially" deprecated until 0.22 / 0.23 (I can't remember which one). If you
want to take a look at the classes dig into the packages for
Hi,
Normally the Hadoop framework calls the map()/reduce() for each record in
the input split. I read in the 'Hadoop : The Definitive Guide' that that
data can be pulled using the new MR API.
What is the new API for pulling the data in the map()/reduce() or is there a
sample code?
Thanks,
Pravee
Doesn't look like it to me:
http://hadoop.apache.org/common/docs/r0.20.2/api/org/apache/hadoop/mapreduce/Job.html
2011/9/23 谭军 :
> Joey Echeverria,
> Yes, that works.
> I thought job.addCacheFile(new URI(args[0])); could run on hadoop-0.20.2.
> Because hadoop-0.20.2 could run context object.
> Th
