View partitions (node labels)

You can view the list of available partitions (node labels) in the cluster. For each partition, a list of associated nodes is displayed under the Hosts column if the partition has been assigned nodes along with partition (node label) type and capacity.

In Cloudera Manager, select the Clusters > YARN Queue Manager UI service. A graphical queue hierarchy is displayed in the Overview tab.
Click the Node Labels tab. A list of existing partitions (node labels) is displayed.

View Node Label Assignments

You can use the following commands to view information about partitions (node label).

List all running nodes in the cluster: yarn node -list

Example:

[root@node-1 /]# yarn node -list
14/11/21 12:14:06 INFO impl.TimelineClientImpl: Timeline service address: http://node-1.example.com:8188/ws/v1/timeline/
14/11/21 12:14:07 INFO client.RMProxy: Connecting to ResourceManager at node-1.example.com/240.0.0.10:8032
Total Nodes:3
 Node-Id Node-State Node-Http-Address Number-of-Running-Containers
node-3.example.com:45454 RUNNING node-3.example.com:50060 0
node-1.example.com:45454 RUNNING node-1.example.com:50060 0
node-2.example.com:45454 RUNNING node-2.example.com:50060 0

List the status of a node (includes partition (node label)): yarn node -status <Node_ID>

Example:

[root@node-1 /]# yarn node -status node-1.example.com:45454
14/11/21 06:32:35 INFO impl.TimelineClientImpl: Timeline service address: http://node-1.example.com:8188/ws/v1/timeline/
14/11/21 06:32:35 INFO client.RMProxy: Connecting to ResourceManager at node-1.example.com/240.0.0.10:8032
Node Report : 
 Node-Id : node-1.example.com:45454
 Rack : /default-rack
 Node-State : RUNNING
 Node-Http-Address : node-1.example.com:50060
 Last-Health-Update : Fri 21/Nov/14 06:32:09:473PST
 Health-Report : 
 Containers : 0
 Memory-Used : 0MB
 Memory-Capacity : 1408MB
 CPU-Used : 0 vcores
 CPU-Capacity : 8 vcores
 Node-Labels : x

Partitions (node labels) are also displayed in the ResourceManager UI on the Nodes and Scheduler pages.