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

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For large clusters (100 nodes or more), isolate the ZooKeeper on nodes that do not perform any other function. Isolating the ZooKeeper node enables the node to perform its functions without competing for resources with other processes. Installing a ZooKeeper-only node is similar to any typical node installation, but with a specific subset of packages.

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Do not install the FileServer package on an isolated ZooKeeper node in order to prevent MapR from using this node for data storage.

To set up a ZooKeeper-only node:

  1. SET UP the node as usual:
    • PREPARE the node, making sure it meets the requirements.
    • ADD the MapR Repository.
  2. INSTALL the following packages to the node.
    • mapr-zookeeper
    • mapr-zk-internal
    • mapr-core
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