Starting or restarting a service

You might need to start a service that has been stopped, or you might need to stop and restart a service.

1. From the service laptop, log in to the grid node:
   1. Enter the following command: ssh admin@grid_node_IP
   2. Enter the password listed in the Passwords.txt file.
   3. Enter the following command to switch to root: su -
   4. Enter the password listed in the Passwords.txt file.
   When you are logged in as root, the prompt changes from $ to #.
2. Decide which command to issue, based on whether the service is currently running or stopped.
   • If the service is currently stopped, use the start command to start the service manually: service servicename start
     For example:

     service ldr start

   • If the service is currently running, use the restart command to stop the service and then restart it: service servicename restart
     For example:

     service ldr restart

     Note: Using the restart command is the same as using the stop command followed by the start command. You can issue restart even if the service is currently stopped.
3. Log out of the command shell: exit