Configure an IBM® WebSphere® proxy server to
perform routing and caching tasks for a cluster of IBM Sametime® Bandwidth
Managers. This task is required regardless of where you install the WebSphere proxy server.
Before you begin
Create a cluster of Sametime Bandwidth Managers
running on WebSphere Application
Server; start the deployment manager as well as all node agents and
application servers in the cluster. .
If you are configuring
the proxy server on a dedicated computer, note that an IBM Sametime Bandwidth
Manager cluster supports two IBM WebSphere Application Server
nodes. Even if you think you only need one node, you should install
two nodes now and federate them to the cell. Attempting to add a second
federated node later might result in lost data. You can optionally
host the secondary node on the same computer as the cluster's primary
node.
About this task
A cluster uses a WebSphere proxy
server to manage routing and caching tasks. To ensure redundancy in
the case of a proxy server failure, you might want to configure multiple
proxy servers for the cluster. You can host a WebSphere proxy server on any node in the
cluster but because it uses a lot of system resources, you might want
to host it on a dedicated computer.
Note: If you install multiple WebSphere proxy servers, you
will need a load balancer to divide the incoming load among the proxy
servers. For information abut installing the IBM Load Balancer, see the topic
Installing IBM Load Balancer.
Procedure
- If this proxy server is installed on a dedicated computer,
set the system clock to exactly the same time as the deployment manager's
system clock.
- Log in to the deployment manager's Integrated Solutions
Console as the WebSphere administrator.
- In the navigation tree, click .
- In the Proxy servers table, click the New button
at the beginning of the table.
- On the Create a new proxy server entry page, do the following:
- In the Select a node list, select
the node that will host the WebSphere proxy
server.
Be sure to select a node that belongs
to the Bandwidth Manager cluster. This is the WebSphere proxy server node that was created
in the Bandwidth Manager cluster when the WebSphere proxy server was federated into
the Deployment Manager.
- Type a descriptive name for the new proxy server (for
example, BWMproxy1).
- Click Next.
- On the Specify server specific properties page, do the
following:
- Select both HTTP and SIP protocols
for your cluster.
- Select Generate unique ports.
- Click Next.
- On the Select a server template page, select proxy_server_foundation (the WebSphere Default Proxy Server
Template), and then click Next.
- On the Confirm new server page, click Finish.
This message displays: New server is created successfully.
- Click Apply and then click the Save link
in the Messages box at the beginning of the page.
- Synchronize the nodes in the cluster:
- Click .
- Select both nodes, and then click Full Resynchronization.
- Assign the new proxy server to the cluster:
- In the navigation tree, click .
- Select the proxy_server_name.
- Click .
- In the Default cluster field,
select the Bandwidth Manager cluster that you are configuring this WebSphere proxy server to
work with. Click OK.
- Click Apply and then save the
change to the master configuration by clicking the Save link
in the "Messages" box at the beginning of the page.
- Synchronize the nodes in the cluster:
- Click .
- Select both nodes, and then click Full Resynchronization.
- Start the new proxy server:
- Again in the navigation tree, click .
- On the Proxy Servers page, select the new proxy server
from the list.
- Click the Start button at the
beginning of the table.
- Refresh the server status by clicking Status.
- If you have more than one WebSphere proxy server in your configuration.
repeat this procedure for each WebSphere proxy
server.