In Pega, a Data-Admin-Requestor instance defines a requestor type. The BROWSER requestor type indicates the characteristics of interactive user connections, such as guest connections, utilizing Internet Explorer or another web browser. Agents employ the BATCH requestor type for background processing. Pega Platform comes with four requestor types for the system name we specify during installation and a reserved requestor type prpc.BROWSER for exceptional cases.
Generally, we only require the four requestor types that contain our system name. If we want to modify the system name after installation, we have to go to Designer Studio => System => Settings => System Name to get to a landing page tab where we can make the change. When we change a system's name, new requestor instances are created that correspond to the previous name's instances. If the prior system name did not include all requestor types for some reason, the missing requestors are also produced when the system is renamed.
Following are the different requestor types in Pega :
Application : The application requestor type is used by listeners and external client systems to access the Pega Platform, such as through a service request (other than JSR-168 requests using Rule-Service-Portlet rules). Requestor IDs that begin with the letter A are used in requestor sessions that use this requestor type instance.
Batch : The batch requestor type is used by listeners, services, agents, and daemons executing background processing. The requestor ID for requestor sessions using this instance begins with the letter B. All BATCH requestors have access to the PRPC.
Browser : The browser requestor type is used for accessing the Pega Platform portal via a web browser via HTTP or HTTPS or from a browser displaying a Pega composite application. The requestor ID for requestor sessions utilizing this instance starts with the letter H.
Portal : The portal requestor type is used in conjunction with Service Portlet rules for HTTP access as a portlet. The requestor ID for requestor sessions utilizing this instance starts with the letter P.
