question Re: How to configure multiple node labels in one node using yarn capacity scheduler in Archives of Support Questions (Read Only)

How to configure multiple node labels in one node using yarn capacity scheduler

gaurab_dawn — Tue, 26 Jul 2016 20:33:57 GMT

Trying to configure multiple node labels(RackA,RackB) in one node(node2) using yarn capacity scheduler using below command. But it isnt working. Kindly help me with this.

yarn rmadmin -replaceLabelsOnNode "node1:port=RackA node2:port=RackA,RackB"

Re: How to configure multiple node labels in one node using yarn capacity scheduler

mqureshi — Tue, 26 Jul 2016 22:23:28 GMT

Which version of Hadoop are you using? there was an issue that was in fixed in version 2.6 which might be impacting you.

https://issues.apache.org/jira/browse/YARN-2723

and what's the error are you getting? Can you please share that?

Re: How to configure multiple node labels in one node using yarn capacity scheduler

myoung — Wed, 27 Jul 2016 00:03:25 GMT

@Gaurab D

A single node label can have multiple nodes assigned to it. However, a single node can not belong to more than 1 node label. You are trying to label a single node with 2 different labels which is not supported.

See: https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.0/bk_yarn_resource_mgt/content/configuring_node_labels.html

You can only assign one node label to each node. Also, if you do not specify a port, the node label change will be applied to all NodeManagers on the host.

Re: How to configure multiple node labels in one node using yarn capacity scheduler

gaurab_dawn — Tue, 13 Sep 2016 17:02:45 GMT

we were using Hadoop 2.7.1.2.4.2.0-258