8. Verify Installation

Your HDP deployment is successful if the smoke tests for all the components pass successfully. To verify that your map-reduce tasks were successfully completed, browse the web interfaces for the NameNode, JobTracker, and HBase. The default locations for these interfaces are as listed below:
- NameNode - http://$NameNodeHost:50070/
- JobTracker - http://$JobTrackerHost:50030/
- HBase Master Web Interface -http://$HBaseMasterHost:60010/
Test access to the Ganglia server. Browse to the Ganglia server:
```
http://$FQDN_for_ganglia_server/ganglia
```
where $FQDN_for_ganglia_server is specified in the gangliaserver flat text file.
Test access to the Nagios server.
1. Browse to the Nagios server:
```
http://$FQDN_for_nagios_server/nagios
```
  where $FQDN_for_nagios_server is specified in the nagiosserver flat text file.
2. Login using the Nagios admin username (nagiosadmin) and password.
3. Click on
```
hosts
```
  to validate that all the hosts in the cluster are listed.
4. Click on
```
services
```
  to validate all the Hadoop services are listed for each host.