Environment Management Hub
The Environment Management hub is a web application that is installed with the PeopleSoft Internet Architecture and portal. It is started along with the rest of the web applications when the user boots the web server. The hub is the broker for all communication between peers.
The Environment Management hub handles:
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Peer registration.
The hub registers all of the information that is published by the agents. It also assigns a unique peer ID for every peer that engages in a dialogue with the hub.
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Maintenance of configuration information.
The hub handles updates to configuration information, the correlation of information, and the grouping into environments based on the information that is published by the agents.
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Agent health monitoring.
The hub keeps track of the state or "health" information of the managed components. It shows whether a peer is still running remotely or not.
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Message brokering.
The hub services message service requests and responses from peers. The messages can be delivered to the respective peers even if the peers are not currently running. They are picked up the next time the peers “call in” to the hub. Typical messages include requests to deploy files to managed servers. It's recommended that the managed server agents be left up and running at all times to listen for messages from the hub. This is critical when applying software updates.
The Environment Management hub is installed as part of the standard PeopleSoft Internet Architecture installation. It supports both single-server and multi-server installations. The Environment Management hub is deployed in the J2EE containers as web application modules. They can be managed like any of the standard web application modules.
Environment Management hub directories are created on the J2EE container for the hub. For Oracle WebLogic, the directory is PIA_HOME\webserv\domain\applications\peoplesoft\PSEMHUB
The required JAR files for the Environment Management hub are installed in the WEB-INF\lib subdirectory.