This is documentation for MapR Version 5.0. You can also refer to MapR documentation for the latest release.

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Comment: added Note for each mixed-mode example for bug 19349

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Example Service Configuration for a 10-Node Enterprise Edition Cluster- Runs in Mixed-Mode (both MapReduce v1 and YARN) 

Note

In mixed-mode cluster configurations, each ecosystem service must have separate instances for MapReduce v1 jobs and YARN applications. These instances may run on the same cluster node, in separate terminal windows. See Configuring the MapReduce Mode with an Environment Variable and Managing the MapReduce Mode for Ecosystem Components.When services run in chains to complete a job, all services in the chain must be configured for the same MapReduce mode, MapReduce v1 or YARN. When a client directly submits a MapReduce job, the the MapReduce mode is selected based on the environment variable or the default mode for the cluster. If a client connects to a server that submits the MapReduce job, the MapReduce mode is determined by the service, not by the client, so the client just needs to point to the correct service.

The example below depicts a 10-node, high-availability Enterprise Edition (M5 license) cluster that can run both MapReduce v1 jobs and YARN applications. ZooKeeper, CLDB, JobTracker, and ResourceManager is installed on three nodes:

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Example Service Configuration for a 100+ Node Enterprise Edition Cluster - Runs in Mixed-Mode (both MapReduce  v1 and YARN)

Note

In mixed-mode cluster configurations, each ecosystem service must have separate instances for MapReduce v1 jobs and YARN applications. These instances may run on the same cluster node, in separate terminal windows. See Configuring the MapReduce Mode with an Environment Variable and Managing the MapReduce Mode for Ecosystem Components.When services run in chains to complete a job, all services in the chain must be configured for the same MapReduce mode, MapReduce v1 or YARN. When a client directly submits a MapReduce job, the the MapReduce mode is selected based on the environment variable or the default mode for the cluster. If a client connects to a server that submits the MapReduce job, the MapReduce mode is determined by the service, not by the client, so the client just needs to point to the correct service.

In this example, the majority of nodes are dedicated to the TaskTracker and NodeManager services. ZooKeeper, CLDB, JobTracker, and ResourceManager are installed on three nodes each. The NFS server is installed on most machines, providing high network bandwidth to the cluster.

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