Installation guide

Section 9.4:Starting the Red Hat Cluster Manager GUI 147
Do you wish to enable monitoring, both locally and remotely, via \
the Cluster GUI? yes/no [yes]:
Answering no disables Cluster GUI access completely.
9.3 Enabling the Web Server
In order to enable usage of the Cluster Manager GUI, all cluster members must be running a web
server. For example, the HTTP daemon must be running for the Apache web server to operate.
Note
If intending to utilize the Cluster Manager GUI, a highly available Apache
service cannot be configured as described in Chapter 7, Apache Services.
This restriction exists because a highly available Apache service causes the
web server to be running on only one cluster member at a time.
Correct operation of the Cluster Manager GUI requires that Apache’s document root remain at the
default setting of /var/www/html as this is where the directory cluster and its corresponding web
content is installed.
9.4 Starting the Red Hat Cluster Manager GUI
After configuring the java browser plugin, start the Cluster Manager GUI by specifying the appropri-
ate URL to the browser. The GUI’s URL consists of either the cluster member name or cluster alias,
followed by "/Cluster". For example, using the cluster alias from the preceding example, the corre-
sponding URL would be http://clu2alias/Cluster. When the GUI applet starts up, a splash
screen will appear on the right and a tree view on the left. To begin cluster monitoring, double-click
the
Clusters label within the tree view, which will reveal the cluster name (as initially configured us-
ing cluconfig).