Hello Demian,
Thanks for the answer.
1. I am using Java for writing the MapReduce Application. Can you tell
me how to do it in JAVA?
2. In the mapper or reducer function, which command did you use to write
the output? Is it going to write it in Log folder? I have multiple nodes
and
i did the same tutorial, i think they only way is doing it outside hadoop.in
the command line:cat folder/* | python mapper.py | sort | python reducer
El Miércoles, 4 de octubre, 2017 16:20:31, Tanvir Rahman
escribió:
Hello,I have a small cluster and I am running MapReduce WordCount a
Hi,
The easiest way is to open a new window and display the log file as follow
tail -f /path/to/log/file.log
Best,
Sultan
> On Oct 4, 2017, at 5:20 PM, Tanvir Rahman wrote:
>
> Hello,
> I have a small cluster and I am running MapReduce WordCount application in
> it.
> I want to print some va
Hello,
I have a small cluster and I am running MapReduce WordCount application in
it.
I want to print some variable values in the console(where you can see the
map and reduce job progress and other job information) for debugging
purpose while running the MapReduce application. What is the easiest
Hi all,
I'm pleased to announce the release of Apache Hadoop 3.0.0-beta1. This is
our first beta release in the 3.0.0 release line, and is planned to be the
last release before 3.0.0 GA. Beta releases are API stable but come with no
guarantee of quality, and are not intended for production use.
3
In my R code, I am using rscala package to bridge to a scala method. in scala
method I have initialized a spark context to be used later.
R code:
s <- scala(classpath = "", heap.maximum = "4g")
assign("WrappeR",s$.it.wrapper.r.Wrapper)
WrappeR$init()
where init is a scala function and Wrapp
In my R code, I am using rscala package to bridge to a scala method. in scala
method I have initialized a spark context to be used later.
R code:
s <- scala(classpath = "", heap.maximum = "4g")
assign("WrappeR",s$.it.wrapper.r.Wrapper)
WrappeR$init()
where init is a scala function and Wrapp
