Release Notes › Policy Server Release Notes › Known Issues › Known Issues in r12.0 SP2 › Manually Create the webadapter.properties File (72353)

Manually Create the webadapter.properties File (72353)

Problem:

The file webadapter.properties is not created in ServletExec's configuration folder, as expected. As a result, OneView Monitor does not work.

Solution:

After configuring OneView Monitor on an RHAS 4.0 platform with a supported web server, manually create the webadapter.properties file in ServletExec's configuration folder. The ServletExec adapter uses the properties in this file to rout HTTP requests from the web server to a ServletExec Application Server (AS) instance.

The webadapter.properties file contains the following properties:

• servletexec.aliasCheckInterval

  Specifies a minimum number of seconds for the ServletExec adapter to poll the ServletExec AS instance.

  Note: Setting this property to a positive number ensures that the ServletExec adapter polls the AS instance for the specified interval of time. As a result, the adapter is automatically updated when the instance's web application data is modified.

  Examples:

  servletexec.aliasCheckInterval=10

  servletexec.aliasCheckInterval=-1

  Use this value to disable polling.

• instance_name

  Specifies the name of a ServletExec AS instance.

• servletexec.instance_name.hosts

  Specifies one or more host names or IP addresses separated by commas.

  Note: These are the hosts for which the specified ServletExec AS instance is configured to process requests.

  Examples:

  servletexec.instance_name.hosts=www.abc.com:9090,www.ca.com

  servletexec.instance_name.hosts=192.168.200.17,192.168.200.43:8000

  servletexec.instance_name.hosts=all

  Specifies that this ServletExec AS instance is configured to process requests from all hosts.

• servletexec.instance_name.instances

  Specifies the IP address and port number of a ServletExec AS instance.

  Note: This IP address and port number are used by the ServletExec adapter when forwarding HTTP requests from the web server to the specified ServletExec AS instance. Each instance must have a unique IP address/port number pair.

  Example:

  servletexec.instance_name.instances=127.0.0.1:8888

  Specifies default values for the IP address and port number.

• servletexec.instance_name.pool-increment

  Specifies the number of connections that can be added to the connection pool when a connection is needed and the pool is empty.

  Note: These connections are used by the ServletExec adapter to communicate with the specified ServletExec AS instance.

  Example:

  servletexec.instance_name.pool-increment=5

• servletexec.instance_name.pool-max-idle

  Specifies the maximum number of idle connections that can be present in the connection pool at any one time.

  Note: This number applies to the connections that are used by the ServletExec adapter to communicate with the specified ServletExec AS instance.

  Example:

  servletexec.instance_name.pool-max-idle=10

Using the webadapter.properties file, the ServletExec adapter applies the following algorithm to each HTTP request:

1. Locate all ServletExec AS instances that are configured for the host specified in the HTTP request.
2. Find a match between the URL in the HTTP request and the .instances property of one of the instances located in step 1.
3. Forward the HTTP request to the resulting ServletExec AS instance.