4. Validate the Installation

Validate the Apache Storm installation to verify a successful installation and configuration.

	Note
	You must start ZooKeeper before starting Storm.

Execute the following command to start the Storm daemons:
- RHEL/CentOS/Oracle Linux
```
/usr/bin/supervisord start
```
- SLES
```
/usr/bin/supervisord start
```

Execute the following command to view the status of the Storm daemons:

RHEL/CentOS/Oracle Linux
```
/usr/bin/supervisorctl status
```
SLES
```
/usr/bin/supervisorctl status
```

You should see output similar to the following:

storm-drpc     RUNNING    pid 3368, uptime 0:31:31
storm-logviewer RUNNING    pid 3365, uptime 0:31:31
storm-nimbus   RUNNING    pid 3370, uptime 0:31:31
storm-supervisor RUNNING    pid 8765, uptime 0:00:12
storm-ui       RUNNING    pid 3369, uptime 0:31:31

Point your browser to the following URL:
```
http://<storm-ui-server>:8080
```
You should see a web page similar to the following:

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