All about the open source project RHadoop, the gateway between Hadoop and R and its packages, rhdfs, rhbase and rmr.
New members: your first post is moderated to prevent spamming to the list. Please be patient! It should switch to unmoderated after the first.
Error reports: Please be sure you've read and applied the steps described in https://github.com/RevolutionAnalytics/RHadoop/wiki/Debugging-rmr-programs. Please post a reproducible test case (including input data) and a real error, not Error: NA. If you only have a Error:NA, please go back to the debugging document and get an informative error message from the logs.

Showing 1-21 of 494 topics
How to be a more helpful group member Antonio Piccolboni 9/17/14
When running the tutorial (My first map reduce job) Problem , subprocess failed with code 1 linetor 8:22 AM
mapreduce time anurag agrahari 1:52 AM
Starting R and Hadoop Elias Carvalho 3/29/15
differences between rmr2 3.2.0 Vs 3.2.1 Arun kv 3/28/15
Performance issue with simple RMR2 test in prod Vs dev Arun kv 3/28/15
Choosing key and value from a dataframe Beta 3/27/15
rmr2 example works but hadoop is slower than local on AWS EMR Dave Hurst 3/27/15
Exception in thread "main" java.lang.ClassNotFoundException: -D Jorge Martinez Ortega 3/25/15
hadoop streaming failed with error code 1 Konstantinos Mammas 3/25/15
hadoop streaming jar missed santhi kanumuru 3/25/15
Sorting Data using RHadoop Beta 3/23/15
problem with HADOOP_HOME, HADOOP_CMD, HADOOP_STREAMING path Ankit Sangwan 3/23/15
Follow up to "plyrmr::dcast memory issues" amitai golub 3/23/15
Can I get access to the details of the counters produced by increment.counter FEI 3/22/15
Re: [RHadoop:#1979] SVM (Support Vector Machine) on R-Hadoop Sai Prem 3/18/15
SVM (Support Vector Machine) on R-Hadoop Ajay Tomar 3/17/15
Error: java.lang.RuntimeException: PipeMapRed.waitOutputThreads(): subprocess failed with code 1 Lobna 3/17/15
Strange mapreduce failure with specific size of input array Alex Vinnik 3/16/15
Errors of rmr2 and rhdfs on 2-node Hadoop's cluster + Cygwin + Windows 8 Ferrum - A 3/16/15
Could not use functions from other packages in map Balasairamkumar O M 3/13/15
More topics »