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Sun Java System Web Proxy Server User Interface |
The Cluster Tab
Clusters are groups of Sun Java System Proxy Servers that can be administered from a single Administration Server. All servers in a cluster must be of the same type (for instance, UNIX or Windows). The Administration Server can store a cluster for each type of Sun Java System Proxy Server. The servers can be installed on any system in a network, but the Administration Server containing the clusters must have access to the Administration Server for each server in the cluster.
The Cluster tab is used to add and configure remote servers, and update port information. The tab contains the following pages:
The Control Cluster PageThe Control Cluster page is used to configure the remote servers. Most Sun Java System Web Proxy Servers allow you to start, stop, or restart the server by clicking the corresponding buttons on the page. For more information, see "Controlling Server Clusters" in the Proxy Server Administration Guide.
The following elements are displayed:
Cluster Name. Select any of the listed servers (select the checkbox for the server), select all servers in the cluster (click Select All), or reset your selection to deselect any servers you have chosen (click Reset Selection).
Start, Stop, or Restart. From the drop-down list, choose the action for the selected remote server and click Go. You will be prompted to confirm the action. The Cluster Execution Report displays, confirming the change. Use the link on this page to return to the Control Cluster page.
View Last, rows of the, log file. Specify the log information you want to see and click Go to display the information (click the View button in the Cluster Execution Report that displays).
Transfer, configuration file from. This section is used to transfer information in the selected configuration file from the selected server. From the Transfer drop-down list, select the desired configuration file. The following options are available:
From the Configuration File From drop-down list, select the server on which these configuration files reside, and then click Go to transfer the information.
Reset. Erases your changes and resets the elements in the page to the values that they contained before your changes.
The Add Server PageThe Add Server page is used to add multiple remote servers to your cluster. Only servers with the same administrator server name and password can be added to the cluster.
If the Administration Server that you are adding contains more than one server, all servers that it manages are added to the cluster (you can remove the individual servers later). If the remote Administration Server contains a cluster, the servers in the remote cluster are not added. For more information, see "Adding Servers to a Cluster" in the Proxy Server Administration Guide.
The following elements are displayed:
Admin Server Protocol. Specify the protocol to be used when contacting the remote Administration Server. Choose one of the following:
Admin Server Hostname. Specify the host name of the remote Administration Server. If your DNS cannot resolve host names, enter the fully qualified host and domain name (for example, www.example.com).
Admin Server Port. Specify the port number of the remote Administration Server.
Admin User Name. Specify the administrator user name for the remote Administration Server.
Admin Password Input. Specify the administrator password for the remote Administration Server.
OK. Saves your entries.
Reset. Erases your changes and resets the elements in the page to the values that they contained before your changes.
The Modify Server PageUse the Modify Server page only to update slave administration port information after it has been changed on the slave server. If you change the port number of a remote Administration Server in your cluster, you also need to modify the information about that Administration Server stored in the cluster. Any other changes to the slave Administration Server require you to delete the server, and then add it back into the cluster after the changes have been made. For more information, see "Modifying Server Information" in the Proxy Server Administration Guide.
The following elements are displayed:
Check Server To Be Modified. Select the server you want to change. All servers of that type display, listed by their unique server identifier.
Admin Server Protocol. Specify the protocol to be used when contacting the remote Administration Server. Choose one of the following:
Admin Server HostName. Specify the host name of the remote Administration Server. If your DNS cannot resolve host names, enter the fully qualified host and domain name (for example, www.example.com).
Admin Server Port. Specify the port number of the remote Administration Server.
OK. Saves your entries.
Reset. Erases your changes and resets the elements in the page to the values that they contained before your changes.
The Remove Server PageThe Remove Server page is used to remove a server from a cluster. You can still access the removed servers using their Administration Server, but you cannot access them from the cluster. For more information, see "Removing Servers from a Cluster" in the Proxy Server Administration Guide.
The following elements are displayed:
Check Server(s) to be removed. Select any of the listed servers (select the checkbox for the server), select all servers in the cluster (click Select All), or reset your selection to deselect any servers you have chosen (click Reset Selection).
OK. Saves your entries.
Reset. Erases your changes and resets the elements in the page to the values that they contained before your changes.