68 lines
2.5 KiB
ReStructuredText
68 lines
2.5 KiB
ReStructuredText
MapR Distribution Plugin
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The MapR Sahara plugin allows to provision MapR clusters on
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OpenStack in an easy way and do it, quickly, conveniently and simply.
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Operation
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---------
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The MapR Plugin performs the following four primary functions during cluster creation:
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1. MapR components deployment - the plugin manages the deployment of the required software to the target VMs
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2. Services Installation - MapR services are installed according to provided roles list
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3. Services Configuration - the plugin combines default settings with user provided settings
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4. Services Start - the plugin starts appropriate services according to specified roles
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Images
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------
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For cluster provisioning prepared images should be used. They already have
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MapR 3.1.1 (with Apache Hadoop 0.20.2) and MapR 4.0.1 (with Apache Hadoop 2.4.1) installed.
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MapR plugin needs an image to be tagged in Sahara Image Registry with
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two tags: 'MapR' and '<MapR version>' (e.g. '4.0.1').
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Note that you should provide username of default cloud-user used in the Image:
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+--------------+------------+
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| OS | username |
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+==============+============+
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| Ubuntu 14.04 | ubuntu |
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+--------------+------------+
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| CentOS 6.5 | cloud-user |
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+--------------+------------+
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Hadoop Version Support
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----------------------
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The MapR plugin currently supports Hadoop 0.20.2 and Hadoop 2.4.1.
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Cluster Validation
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------------------
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Mr1 Cluster is valid if and only if:
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1. Zookeeper component count per cluster equals 1 or greater. Zookeeper service is up and running.
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2.1 Each node has Fileserver component. Fileserver is up and running on each node. Or
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2.2 Each node has NFS server component. NFS server is up and running.
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3. If node has TaskTracker component then Fileserver must be also.
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4. Web-server component count per cluster equals 0 or 1. Web-server is up and running.
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YARN Cluster is valid if and only if:
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1. Zookeeper component count per cluster equals 1 or greater. Zookeeper service is up and running.
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2. Resource manager component count per cluster equals 1 or greater. Resource manager component is up and running.
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3.1 Each node has Fileserver component. Fileserver is up and running on each node. Or
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3.2 Each node has NFS server component. NFS server is up and running.
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4. Web-server component count per cluster equals 0 or 1. Web-server is up and running.
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5. History server component count per cluster equals 1. History server is up and running.
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The MapR Plugin
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---------------
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For more information, please contact MapR.
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