HDFS, YARN, and other services are listed on the Clusters and Services tab of the cluster management page. You can view the running statuses of these services.

The service list shows the following information.
Clusters and Services

A service's running status is only showed for clusters that are in the Idle or Running status. Services that are not checked when creating a cluster, such as Storm, are not listed.

Click a service to view the corresponding tabs, including Status, Component Topology, Configuration, and Configuration Change History. The status can either be Normal or Error. If the status of a service on a node is Error, you can use the master node to log on to the node and check the service process.