You can start, stop, or restart services from the command line or from the MapR Control System (MCS).
From the Command Line:
To start, stop, or restart services from the command line, use the
node services command. The syntax for the
node services command is:
Command Line Examples
To restart the TaskTracker service on three nodes with hostnames
To start the CLDB service on a node whose hostname is
From the MCS:
To manage node services from the MCS, you can:
- Click on Nodes and then Manage Services.
- Click on Nodes and then Properties.
Both methods are explained below.
Clicking on Nodes and Manage Services:
- In the Navigation pane, expand the Cluster group and click the Nodes view.
- Select the checkbox next to the node or nodes whose services you want to start, stop, or restart.
- Click the Manage Services button to display the Manage Services dialog.
- For each service, select the appropriate option from the corresponding drop-down menu.
- Click OK to start, stop, and restart the services according to your selections.
Clicking on Nodes and Properties:
- From the Nodes view, select the checkbox beside the node whose services you want to display.
- Click the Properties button to display all the properties for the node.
- Scroll down to the Manage Node Services section to see the status of each service.
- Click on the Stop/Start or Restart icons as necessary.