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  1. Impulse DW
  2. 4. System Administration
  3. 4.2 Managing System Services

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4.2 Managing System Services

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You must be an admin to perform the following operations to monitor system services and manage their running statuses.

  1. Main navigation menu --> System Services
  2. You will see all system services and their running statuses.
  3. Depending upon the status of a service, Start or Stop button will show enabled or disables. For example, if a service is up and running, the Start button will be disabled and the Stop button will be enabled.
  4. The Zookeeper (or zk) service is almost never needed to be stopped or restarted. However, if you see any zookeeper connectivity issue in the system logs, it may be a good idea to stop and start the zk service.
  5. Impulse-http, master and worker services need to be stopped and restarted only in case of any config change as described in the System Configuration section
  6. Do not stop the "impulseui" service unless there is any emergency and service is totally unresponsive or if there is any error. Doing so will stop the web server and the web console will not be accessible. If that situation arises, you will need to reboot the machine (OS).

If due to any reason, the web console is inaccessible, reboot your server (OS level reboot). All services should come back up.

Figure 4.2a: Screen showing System Services menu and service running statuses

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