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Questions tagged [mapr]

MapR is a commercial data platform that offers a HDFS compatible distributed file system, a database that allows to store data in BigTable or JSON and a streaming platform for messaging. MapR leverages APIs from open source tools such as Hadoop, Kafka, HBase and provides a proprietary implementation written in C optimised for improved performance.

MapR is a complete enterprise-grade distribution for Apache Hadoop. The MapR Converged Data Platform has been engineered to improve Hadoop’s reliability, performance, and ease of use.

The MapR distribution provides a full Hadoop stack that includes the MapR File System (MapR-FS), the MapR-DB NoSQL database management system, MapR Streams, the MapR Control System (MCS) user interface, and a full family of Hadoop ecosystem projects. You can use MapR with Apache Hadoop, HDFS, and MapReduce APIs.

MapR supports the Hadoop 2.x architecture and YARN (Yet Another Resource Negotiator). Hadoop 2.x and YARN make up a resource management and scheduling framework that distributes resource management and job management duties.

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There are three MapR editions.

  • MapR Community Edition (formerly M3)
    • Free community edition.
  • MapR Enterprise Edition (formerly M5)
    • Adds high availability and data protection, including multi-node NFS.
  • MapR Enterprise Database Edition (formerly M7)
    • Adds structured table data natively in the storage layer and provides a flexible NoSQL database.

MapR can be installed on many versions of Red Hat Enterprise linux, CentOS, Ubuntu, Oracle Linux, and SUSE. A full matrix of supported Linux operating systems can be found here.

To install MapR the following requirements are needed.

  • A 64-bit CPU.
  • One of the above mentioned operating systems. (Red Hat Enterprise linux, CentOS, Ubuntu, Oracle Linux, or SUSE)
  • A minimum of 8GB of RAM.
  • At least one single unformatted disk.
  • A Resolvable hostname.
  • A common user on each server you wish to install MapR on.
  • Java 1.7.0 or higher.
  • Other
    • NTP, Syslog, PAM



Try MapR

Download the MapR Sandbox for VMware or Virtualbox for free.

OR

Install MapR on your own. Check to see if the installer is supported for your OS

You will have to meet the prerequisites for a successful installation

Get the mapr-setup sctipt from the MapR repository.

wget http://package.mapr.com/releases/installer/mapr-setup.sh

Run the mapr-setup script to start the installation.

bash ./mapr-setup.sh -y

Open the web UI with the following URL

https://<Installer node hostname/IPaddress>:9443

Following the prompts and you will be on your way to installing MapR.

There is also manual installation available. Full instructions can be viewed here.

Extensive documentation can be found on MapR's documentation site. http://maprdocs.mapr.com/home/



The Stackoverflow tag [mapr] can be used for questions about issues you have with the MapR platform.

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How to install Mapr client on windows 7 64bit?

I am trying to install mapr-client in window 7 64bit with link I'm go to set java and mapr path both after that download the setup and extracted while executing the below command getting an error. server\configure.bat -N my.cluster.com -c -C…
Richbest
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Hive to HFile creation issue: MapR

I've been working on a small task of converting and loading hive data to HFiles in HBase; framework MapR. Using bulkload I'm loading the data after conversion in HFiles. There isn't any issue with conversion, the conversion is going fine. The only…
knowone
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ERROR terasort.TeraSort: Input path does not exist: maprfs:/user/user01/–DXmx1024m

While Running the terasort application by modifying the parameters I'm getting the following Error. 15/05/24 21:41:42 ERROR terasort.TeraSort: Input path does not exist: maprfs:/user/user01/–DXmx1024m Command I'm running for executing the jog $…
smali
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Tutorial to install hadoop To Analyse => millions of data

I need to install hadoop to analyse data, show statistics, and develop an application from it. And I need to know if I need a windows/linux machine? How many datanodes/namenodes will I need? Is there any tutorial for this? More precision: I have…
neustre nitch
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Distribution for Platfora and Datameer

I am interested in installing Platfora and Datameer analytic tools. My doubt is in the documentation of both these tools, we see for existing Hadoop distributions, they have given the compatibility list including CDH, HDP, and MapR. But I wanted to…
user234202
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Hive map-reduce query is failing

I am trying to run my first Hive query which can launches map-reduce job. I have followed all the steps given at "http://doc.mapr.com/display/MapR/Hive". "web_log" table has been crated and data loading completed with no error. But when trying to…
abhijit nag
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MapR installation failing for single node cluster

I was referring quick installation guide for single node cluster. For this i used 20GB storage file for MaprFS but while on installation , it is giving ' Unable to find disks: /maprfs/storagefile' . Here is my configuration file. # Each Node section…
Shashi
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Docker - Access mapr UI from host

I have installed docker on a CentOS machine. Now I am trying to run a MapR sandbox on it. After starting I get this: Starting MapR Services................. To manage this node go to: https://172.17.0.13:8443 But I am not able to access this URL…
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Getting Spring-XD and the hdfs sink to work for maprfs

This is a question about spring-xd release 1.0.1 working together with maprfs, which is officially not yet supported. Still I would like to get it to work. So this is what we did: 1) adjusted the xd-shell and xd-worker and xd-singlenode shell…
user152468
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hadoop write file and put in Distributed cache

I have a requirement to create a dynamic file based on the content in hadoop job.properties and then put it in Distributed Cache. When I create the file I see that it has been created with the path of "/tmp". I create a symbolic name and refer to…
javauser
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Migration from HDP to MapR

I am bit new to MapR Hbase but I have worked with Hbase with HDP/Cloudera. We have hbase cluster in HDP and we are planning to migrate Hbase data to MapR Hbase cluster. What should be appropriate approach that I can take here? (Downtime is not a…
Shashi
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java.lang.IllegalArgumentException: There is no queue named default

I'm trying to load the data into pig and dump the same data on to the console. I did without any errors in Cloudera sandbox using following commands. raw_data = LOAD 'hdfs:/user/cloudera/sampledata' USING PigStorage(',') AS ( …
Ram
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Apache Spark Streaming and Apache Flume integration

I am trying to integrate Apache Spark Streaming and Apache Flume by following this guide. I am trying to set this up in a MapR Sandbox. When I submit the example: JavaFlumeEventCount, everything works fine and it counts all the events. I use one…
stefana
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Hiveserver2: Failed to create/change scratchdir permissions to 777: Could not create FileClient

I'm running a MapR Community Edition Hadoop cluster (M3). Unfortunately, the HiveServer2 service crashes and, according the log file in /opt/mapr/hive/hive-0.13/logs/mapr/hive.log, there's a problem with permissions on the scratch…
Alex Woolford
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Not a valid ProtoBuf in JobTrackerWatcher.findJobTrackerAddr(): Retrying to connect ZooKeeper Attempt# 0 Current ZooKeeper Server:

I'm getting below errors while trying to run mapreduce program from eclipse using MAPR windows client .. Can you please help what's wrong in this . Note : I'm able to access the MAPR fs from window cmd prompt: error log like below: INFO…
MapReddy Usthili
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