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Service cluster

A service cluster is a collection of nodes. Gathering the nodes into a cluster enables central configuration.

On a multi-node site, the service cluster stores configurations, such as persistence type, database connection, and static content folder, for all nodes. All nodes are linked to the service cluster so that the settings can be unified.

  1. Open the QMC: https://<QPS server name>/qmc

  2. Select Service cluster on the QMC start page or from the StartArrow down drop-down menu to display the service cluster page.

Identification

Identification properties
Property Description

Name

Service cluster name.

Cluster settings

Cluster settings properties
Property Description
Root folder

The root folder path will, by default, be used for the root subfolders, unless a different path is explicitly stated. If the root folder has the path //myhost/share, the default root subfolder path will be //myhost/share/<root subfolder>.

App folder Root subfolder to which all nodes connect to retrieve apps.
Static content root folder Root subfolder that contains static content, such as images.
Archived logs root folder Root subfolder, one for each host.
Failover timeout (minutes) Amount of time that the central node can be offline before a failover occurs. Default value: 10 minutes. This value is editable.

Data encryption

Database encryption properties
Property Description

QVF encryption

Encrypts the Qlik Sense apps (QVF) with the encryption key provided in the Encryption key input field.

App content (data and bookmarks) is being encrypted when saved. Apps that were created before QVF encryption was enabled will be encrypted the next time they are saved with updates to data or bookmarks.

QVD encryption

Encrypts new Qlik Sense data files (QVD) that are created with the STORE command in the data load script. The QVDs are encrypted with the encryption key provided in Encryption key input field.

Data files are being encrypted when stored. Data files that were created before QVD encryption was enabled will be encrypted the next time the data is stored.

Encryption key

The encryption key to be used to encrypt Qlik Sense apps and Qlik Sense data files. This is the Thumbprint field of the encryption certificate.

Encryption certificates

Impersonation

Impersonation properties
Property Description

Reload tasks

By selecting Reload tasks, you activate impersonation. Impersonation enables you to run reload tasks with the permissions of the app owner. Within a task chain, apps can have different owners, and then permissions to sources are dependent on each individual owner's access rights.

When Reloads tasks is unselected, reload tasks run on behalf of the internal system account, sa_scheduler, that has elevated privileges and, technically, can use any data source.

Help us improve

Help us improve properties
Property Description

Data collection

To improve our products and services, Qlik collects system and usage data. The data is anonymized, it does not contain any personal data.

Data collection is a check box in the installation procedure, and is by default selected, that is, Qlik is entitled to collect data. Both during installation and afterward, you can select not to send data to Qlik by clearing the selection Data collection. To change the data collection setting in the QMC, you must have the required privilege.