The Qlik Sense services, which run on the Microsoft Windows operating system, can be deployed in different ways on a node to suit different deployment purposes.
The Qlik Sense services include:
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The Qlik Sense Repository Service (QRS) manages persistence and synchronization of apps and licensing, security, and service configuration data. The QRS is needed by all other Qlik Sense services to run and serve apps. It attaches to a repository database and manages the repository database synchronization in multi-node sites. In addition, the QRS stores the app structures and the paths to the binary files (that is, the app data stored in the local file system).
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In a default Qlik Sense installation, the Qlik Sense Repository Service (QRS) uses the Qlik Sense Repository Database (QRD) service to read and write data in the repository database. A PostgreSQL database is used by default.
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The Qlik Sense Proxy Service (QPS) manages site authentication, session handling, and load balancing.
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The Qlik Sense Scheduler Service (QSS) manages the scheduled reloads of apps as well as other types of reload triggering based on task events.
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The Qlik Sense Engine Service (QES) is the application service, which handles all application calculations and logic.
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The Qlik Sense Printing Service (QPR) manages export in Qlik Sense.
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The Qlik Sense Service Dispatcher (QSD) is a service controller that is used to launch and manage the following Qlik Sense services:
- Chart Sharing Service: The Chart Sharing Service is used to share charts between Qlik Sense users.
- Data Profiling Service: The Data Profiling Service is used to access and modify the application load model.
- Migration Service: The Migration Service ensures that your apps can be used in the currently installed version of Qlik Sense.