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Questions tagged [rhadoop]

RHadoop is combination of R and Hadoop to manage and analyze data with Hadoop

RHadoop is a collection of three R packages that allow users to manage and analyze data with Hadoop. The packages have been implemented and tested in Cloudera's distribution of Hadoop (CDH3) & (CDH4). and R 2.15.0. THe packages have also been tested with Revolution R 4.3, 5.0, and 6.0. For rmr see Compatibility.

Source: Github: Revolution Analytics (RHadoop)

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how to access HDFS file path(Installed packages: rmr2,rhdfs) in normal R commands?

I have zip files in HDFS.I am going to write a mapreduce program in R. Now R is having command to unzip the zip file. unzip("filepath") but here it is not accepting my HDFS file path? I tried like unzip(hdfs.file("HDFS file path")) it is…
User12345
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rhdfs is not getting connected

I have set the HADOOP_CMD(hadoop path) variable but it is not taking the path,saying as not found library("rhdfs") hdfs.init() Sys.setenv(HADOOP_CMD="C:/cygwin64/usr/local/hadoop/bin/hadoop") Error in system(command, intern = TRUE) :…
user2801682
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Error in inserting data to HBase from R

I have a sample code that connects to HBase from R using RHBase (RHadoop suite). It works in one environment, does not in another. Code: # Location and port of the thrift server hostLoc = '172.25.1.16' port = 9090 require(rhbase) #create new…
jackStinger
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RHadoop key with multiple components

I'm stuck when trying to get keyval pair when the key has multiple components. Say all the keys contain 3 string components, for example: {"I" "like" "Lucy"}, or {"You" "hate" "Jimmy"}. The combination of these 3 strings will be unique key. And what…
Hao Huang
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How to install RHadoop on Ubuntu Natty 11.04 machine?

I need to install RHadoop on my ubuntu natty 11.04 machine. I tried doing these commands "apt-get install r-base" but i am getting unmet dependencies root@cldx-1063-961:/home/rhadoop/dependency# apt-get install r-base Reading package lists...…
Praveen Gr
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Multicore computing with Rhadoop

I have tried to calculating something with Rhadoop(linkage between R and hadoop). When I benchmarked my cluster with embedded examples in Hadoop-1.0.4, it looked working well. ( I mean all of the cores of slave-nodes worked, though the cpu usage was…
Hyunwoong Ji
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Which is better for running recommendations on a Hadoop cluster, Apache Mahout or using R with Hadoop (via hadoop streaming/RHIPE/RHadoop etc)?

I am new to Big-data and looking for a good platform to perform recommendations,clustering and classification. I understand Mahout has many algorithms to do this. Also R itself being a very good analytical tool is more than helpful for achieving…
Kiran Karanth
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