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Announcement:The Converge Community turns 6 months old! View top posts and take our poll

Copying data to nodes, how to spread equally

I have a large set of data, split over hundreds of files, that I am copying over to my cluster vis ssh. I have 9 nodes, all but one setup as data nodes and the remaining node (hadoop-node2) has most of the MapR processes running on it. On hadoop-node2 I run hadoop dfs -mkdir /data and then copy over my data via ssh

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bgajjela in Answers18 hours ago

Mapr-Hive and Apache Hive Sync

Hi , Is there a possibility of Mapr-Hive and Apache Hive are in sync. what are the time lines or the scope of mapr-hive are in sync with new releases of apache hive. I believe we are way beyond apache-hive even though few back porting of bugs are happening to current release of hive. Thanks, Bharath

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niranjan in Answers1 week ago

MapR maven dependency conflicts with existing Hadoop dependency

Hi, I'm working on a project which has a dependency on Apache Hadoop related jars, in this project I also have a module which reads from or writes to HDFS. I tried testing this module against MapR-FS and it works fine (I've installed the client as required). But in order to make this work I did the

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jdgellecanao in Answers1 month ago

MAPR INSTALLATION ERROR: /opt/mapr/installer/logs/ip-192-168-0-122.log (No such file or directory)-Error code:404 5:46:33 PM

Hi Guys, Can you help me resolve this issue? I already setup the hostname on /etc/hosts and it can be ping internally and externally. Tried to remove mapr-install rpm packages and restart the installation process but to no avail still Ive encountered this error? any ideas? Thanks Error:

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krishna9191 in Answers2 weeks ago

http://192.168.16.128:8443/ The connection has timed out

I am trying to install MapR sandbox using Vmware. Installation is successful but the page http://192.168.16.128:8443/ is NOT LOADING. The Connection has Timed Out) In the Installation instruction-6, Verify that a DNS entry was created on the host machine for the virtual machine. If not, create the entry.

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Vinayak Meghraj in Answers5 days ago

R from SparkR Interactive shell

Steps to execute R from /opt/mapr/spark/spark-1.6.1/bin/sparkR interactive shell Example 1) 1) people <- read.df(sqlContext, "file:///opt/mapr/spark/spark-1.6.1/examples/src/main/resources/people.json", "json") 2) head(people) Example 2) 1) sc <- sparkR.init() 2) sqlContext <- sparkRSQL.init(sc)

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onelson

in MapR Academy6 months ago

Essentials (ESS 100) Lesson 1 – Describe your big data problem

Think about the 3 Vs of big data: volume, velocity, and variety. What features make your data difficult to store, process, or describe? Share specific stories of how you have struggled with a big data problem.

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rojsingh007 in MapR Academy3 days ago

Dear Ana, please advice, which courses must be done to be a petroleum data scientist. example: http://www.bigdataoilandgas.com/

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