(dist)(zos)(v8550)

Intelligent Management for web servers overview

Intelligent Management increases the quality of service and decreases the total cost of ownership for the middleware. Intelligent Management capabilities are available for Apache or IBM HTTP servers in managed and unmanaged nodes. By enabling Intelligent Management for the web server, the following capabilities become available for the web server plug-in:

All of these capabilities are also available via the ODR. However, the ODR is stabilized.

The following capabilities are not available in the plug-in. Use the ODR for the following scenarios:

When Intelligent Management is enabled in the WebSphere plug-in, routing information is not defined in the plugin-cfg.xml file

The Intelligent Management daemon process is a single highly available process, which starts automatically when Intelligent Management is enabled. Each child worker process connects to the Intelligent Management daemon process to get routing information. The Intelligent Management daemon connects to an Intelligent Management REST service via XD_AGENT port of the deployment manager and each node agent. The Intelligent Management daemon process connects to only one REST service at a time per cell. If the process that the Intelligent Management daemon is connected to stops or fails, the Intelligent Management daemon connects to another process hosting the Intelligent Management REST service.

A child worker process does not connect directly to the Intelligent Management REST service; only the Intelligent Management daemon process connects to the Intelligent Management REST service. When Intelligent Management is enabled, the plugin-cfg.xml file is populated with endpoint information for all XD_AGENT ports: for the deployment manager and for each node agent. The plug-in requires this data to discover routing information in a highly available manner. After the Intelligent Management daemon connects to an Intelligent Management REST service and retrieves the initial routing information for the cell, the daemon immediately issues another request, which blocks until a change that affects routing occurs. In this way, the plug-in is immediately notified of configuration or state changes, which are important for routing.


Subtopics


Related concepts

  • Select a front end for the WAS topology
  • Create ODRs


    Related tasks

  • Configure Intelligent Management for web servers
  • Configure trace on the web server plug-in
  • Configure Intelligent Management properties for web servers
  • Create health policies
  • pluginIntelligentManagement.py script
  • Intelligent Management: administrative tasks for web servers