Chapter 7. Verifying the Red Hat HPC install

Once the installer node is successfully configured the next step is to verify that all software components are installed and working correctly. The following steps can be used to verify the Red Hat HPC Install.

Procedure 7.1. Verifying the HPC Install

Start the web browser (Firefox). The cluster homepage is displayed.
Use the dmesg command to check for hardware issues.
Check all network interfaces to see if they are configured and up.
```
# ifconfig -a | more
```

Verify the routing table is correct.

# route

Make sure the following system services are running:

Service	Command
Web Server	service httpd status
DHCP	service dhcpd status
DNS	service named status
Xinetd	service xinetd status
MySQL	service mysqld status
NFS	service nfs status

Table 7.1. Running System Services

Run some basic Red Hat HPC commands.
List the installed repositories
```
			
# repoman –l
```
List the installed kits
```
			
# kitops –l
```
Run the Node Group Editor
```
# ngedit
```
Run the Add Host tool
```
# addhost
```
Check that Cacti is installed (optional; Cacti is only available if the Cacti kit has been installed)
From the web browser enter the following URL:
http://localhost/cacti
Login to Cacti with username: admin, password: admin
Check that Nagios is installed (optional; Nagios is only available if the Nagios kit was installed)
From the web browser enter the following URL:
http://localhost/nagios
Login to Nagios with username: admin, password: admin