Install MapR Cluster

                                     Install MapR Cluster

Quick and dirty way to install MapR cluster within few mins with just few commands if you don't want to script this process or use GUI installer.

In this post its assumed you have a system with Red-Hat/CentOS 6.x already then below steps required to get MapR Hadoop Cluster up and running.


  1)  yum install wget -y
  2)  wget http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
  3)  rpm -Uvh epel-release-6*.rpm
  4)  rpm --import http://package.mapr.com/releases/pub/maprgpg.key
  5)  groupadd -g 5000 mapr ; useradd -g 5000 -u 5000 mapr
  6)  vi /etc/yum.repos.d/maprtech.repo           ----  Add below address

[maprtech]

name=MapR Technologies

baseurl=http://package.mapr.com/releases/v5.2.2/redhat/

enabled=1

gpgcheck=0

protect=1

[centos]

name=centos, Inc.

baseurl=http://mirror.centos.org/centos/6.9/os/x86_64/

enabled=1

gpgcheck=0

  7)  Now creating list of disk to be given to MFS, First disk is OS disk hence came up with below script to get list of disks.
( Below is example to get disk list on aws instance excluding OS disk )

fdisk -l  | grep dev | awk '{print $2}' | cut -d: -f1 | tail -n +2 >> /tmp/disks

   8)  Install all required services with Java.
yum install mapr-cldb mapr-core mapr-fileserver mapr-zookeeper mapr-zk-internal mapr-webserver java-devel -y
 
   9)  Add "/usr/lib/jvm/jre-1.6.0-openjdk.x86_64" to below env file as "JAVA_HOME"

 vi /opt/mapr/conf/env.sh

   10)  /opt/mapr/server/configure.sh -C Nodes -Z Nodes -N Cluster-Name
   11)  /opt/mapr/server/disksetup -F /tmp/disks
   12)  Start ZK service and check qstatus if it has leader.

 service mapr-zookeeper start
 service mapr-zookeeper qstatus

   13) Start warden

service mapr-warden start

14)  Check MCS to Apply License and monitor the cluster.

connect browser to https://{webserver host name}:8443