Hadoop - Worker Node

Yarn Hortonworks

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The worker node is a node in an hadoop cluster that host the (worker|agent) process (in contrast with the head node that hosts the leader services).

For example, the following process would be installed on a worker node:





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cluster in Hadoop. An cluster is group of process (generally one machine per process) called node where you will find two kind of nodes: headnodes that hosts the main process worker nodes that hosts...
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A head node is a node on a hadoop cluster that runs the (head|lead) services that manages the worker nodes. For example, the following process would be installed on a head node: For hdfs, the namenode...
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A worker node in the yarn context. A node is materialized on the node machine side by the node manager process. Ie the version of the node is the version of node manager. See All nodes All...



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