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YARN-6012. Remove node label (removeFromClusterNodeLabels) document is missing (Contributed by Ying Zhang via Daniel Templeton)

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Daniel Templeton 2017-01-23 17:40:44 -08:00
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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
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@ -20,6 +20,7 @@ YARN Node Labels
* [Configuration](#Configuration)
* [Setting up ResourceManager to enable Node Labels](#Setting_up_ResourceManager_to_enable_Node_Labels)
* [Add/modify node labels list to YARN](#Add/modify_node_labels_list_to_YARN)
* [Remove node labels from YARN](#Remove_node_labels_from_YARN)
* [Add/modify node-to-labels mapping to YARN](#Add/modify_node-to-labels_mapping_to_YARN)
* [Configuration of Schedulers for node labels](#Configuration_of_Schedulers_for_node_labels)
* [Specifying node label for application](#Specifying_node_label_for_application)
@ -86,6 +87,13 @@ Notes:
* If user don’t specify “(exclusive=…)”, exclusive will be ```true``` by default.
* Run ```yarn cluster --list-node-labels``` to check added node labels are visible in the cluster.
###Remove node labels from YARN
* Remove cluster node labels:
* To remove one or more node labels, execute the following command: ```yarn rmadmin -removeFromClusterNodeLabels "<label>[,<label>,...]"```. The command argument should be a comma-separated list of node labels to remove.
* It is not allowed to remove a label which has been associated with queues, i.e., one or more queues have access to this label.
* To verify if specified node labels have been successfully removed, run ```yarn cluster --list-node-labels```.
###Add/modify node-to-labels mapping to YARN
* Configuring nodes to labels mapping in **Centralized** NodeLabel setup