Viewing the List of Services

You can view the list of services installed on the cluster and on the nodes using the MapR Control System and the CLI.

Viewing the Services Installed on the Cluster Using the MapR Control System

Log in to MCS and click Services.
The Services pane displays all the services installed on the cluster and for each service, the pane displays the following:
Column Name Column Description
Service The name of the installed service.
Running Nodes The number of nodes on which the associated service is running. The service can be stopped () or restarted (). Click the number in this column to view the nodes on which the service is running.
Standby Nodes The number of nodes on which the associated service is in standby (available, but not running) state. The service can be started () or restarted (). Click the number in this column to view the nodes on which the service is in standby state.
Failed Nodes The number of nodes on which the service has failed. The service can be started () or restarted (). Click the number in this column to view the nodes on which the service has failed.
Stopped Nodes The number of nodes on which the associated service is stopped (and not running). The service can be started () or restarted (). Click the number in this column to view the nodes on which the service has been stopped.
Config Path The path to the configuration file for the service.
Log Viewer (Displays only if Kibana is installed on a node) The link () to the Kibana UI.
You can filter the list of services displayed by:
  • MEP, which includes services such as Hive, Drill, etc.
  • Core, which includes services such as CLDB, Hoststats, File server, etc.
  • Monitoring, which includes services such as Grafana, Kibana, etc.

Viewing the Services Running on a Node Using the MapR Control System

  1. Log in to MCS and click Nodes.
  2. You can:
    • Hover the cursor over the number listed in the Running Services column in the Nodes pane to view the list of services installed on that node.
    • Go to the Summary tab in the node information page to view detailed information on the services installed on a node.
    In the Summary tab, for each service running on the node, the Services pane displays the following:
    Column Name Column Description
    Service The name of the service.
    State The current state of the service. Value can be:
    • Running
    • Stopped
    Memory Allocated The amount of system memory allocated to the service.
    System Memory Utilized The percentage of memory utilized by the service.
    CPU Usage The CPU used by the service.
    Log Path The path to the service log file.
    Log Viewer The link to the Kibana UI (only if Kibana is installed).
    You can select the checkbox beside one or more services to take the following actions:
    Note: If Kibana is installed, you can click to view the logs. See Kibana User Guide for more information.

Retrieving the Services Running on a Node Using the CLI or REST API

The command to list all the services on a node is:

maprcli service list -node <node name>

For complete reference information, see service list.