You can start a node with a specific node type, which allows the node to run only the
associated agents, listeners, job schedulers, and queue processors for that node type. If a node
is not configured with any node type, the node classification feature does not apply to that
node.
By segregating nodes by their purpose and using the appropriate node types, you can optimize resources and improve performance.
For example, if you have six nodes, you can configure three nodes to perform web user
functions, two nodes for background processing, and one for search indexing. You can also
start a node with multiple node types. In this situation, the node runs a set of listeners
and enabled agents that are associated with the specified node types.
The following procedure describes how to configure node types on an Apache Tomcat
server.
Note: For other application servers, set the JVM argument by following the documentation for that application server.
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Modify the setenv.bat file, which is in the
<TOMCAT_HOME>/bin directory, by setting the following JVM argument:
-DNodeType=<node-type>
​where <node-type>
is one or more of the following node types
that Pega Platform provides by default. For more information, see Pega node types.
To meet your specific business needs, you can create your configurable node types and
configure them for agents, listeners, job schedulers, and queue processors. To learn
more about creating your configurable node types, see Creating configurable node types.
Note: To start a node with multiple node types, enter node types separated by a comma.
For example, to start a node with the Search and the BIX type, enter:
-DNodeType=Search,BIX
. If the same agent is enabled on both node
types and there is a conflict in agent schedules, the agent schedule for the node type
that is listed earlier takes precedence. In this example, the agent that is enabled on
the Search and BIX nodes runs according to the schedule that is specified for the Search
node type.
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Verify that you have configured node types successfully by performing the following
actions:
-
In the navigation panel of Admin Studio, click .
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Check for node types that correspond to the nodes that you configured.