Reloading app data

Apps in the Qlik Cloud Analytics hub do not update automatically when their data sources are updated. Reloading an app updates it with the latest data from the app data sources. App reloads can be manual or scheduled.

For information about which users can reload data, see:

• Managing permissions in shared spaces

• Managing permissions in managed spaces

You can check the reload status of an app. This can be Success, Reloading, or Failed.

• In list view of apps in the Last modified column.
• In the app card in tile view or grouped view.

Scheduling reloading app data

You can create a schedule for data reloading in your app. The schedule can be based on frequency, date, and time, or when a dataset in the app is refreshed.

To set a reload schedule for an app:

1. Click on the app and select Reload schedule.

2. Click Add schedule.

3. To schedule reloads when data is refreshed, select When a dataset is refreshed in Reload the app.

   To create a time-based schedule, select any of the options under Time in Reload the app.

   Information noteIf the app does not contain a dataset that is created and refreshed by Qlik Cloud Data Integration, the Time heading and the When a dataset is refreshed option are not displayed.

Event-based schedules

You can set a schedule to reload the app when a dataset in the app is refreshed. This option is only available for apps that contain a dataset that is created and refreshed by Qlik Cloud Data Integration. For more information, see Integrating data.

Managing reload schedules

You can edit scheduled reloads for all apps that you own. Tenant admins and analytics admins can view and delete, but not edit, scheduled reload tasks.

To remove a scheduled reload from an app:

1. In the hub, select on the app, and click Reload schedule.

2. Click Delete.

Limitations and considerations

• The reload schedule is turned off if it fails to execute five times in a row. If you own the reload schedule for the app (the reload schedule is assigned to you), you will receive notifications when this happens. Notification settings can be customized for a single app, all apps in a space, or all apps in a tenant. For information about the owner of a reload schedule, see Ownership of reload schedules.

• If you have a high number of queued and executing data reload processes (and additional concurrent CPU and memory intensive processes), you might notice that some reload processes execute, in some cases, noticeably after their scheduled start time.

• Scheduled reloads are not included for the published copy of an app. Published apps must have scheduled reloads reconfigured on the app in the managed space.

• If you move an app with a reload schedule between spaces, the reload schedule is deleted. Recreate the schedule in the new space if required.

• If you add or remove datasets in an app with a When a dataset is refreshed schedule, you must remove the schedule and recreate it.

• Partial reload is not supported for When a dataset is refreshed schedules.

Ownership of reload schedules

A time-based scheduled reload runs on behalf of the user that is assigned to the reload schedule (the reload schedule owner), rather than the app owner. Certain actions will result in changes to who is assigned to the reload schedule. The user assigned to the reload schedule is determined by the following rules:

• When you create a reload schedule for an app that did not previously have one, you become the owner of that reload schedule. In other words, it is assigned to you.

• If another user edits or saves an existing reload schedule, ownership is transferred to them. In other words, the reload schedule is now assigned to them.

• If another user modifies the app's load script by making edits in Data load editor (or by loading data in Data manager), ownership is transferred to them in most cases (it will be assigned to them). However, if this user is already the most recent user to edit the load script, the ownership of the schedule will not transfer to them.

  Information noteIt is not recommended to use Data manager for collaboratively developing the app's data model. For more information, see Collaborative development and Data manager.

For more information about co-developing app data models, see Collaboratively developing data models in shared spaces.

Partial reload

Turn on Partial reload to run a pre-defined part of the load script and update the corresponding tables. A full reload always starts by deleting all tables in the existing data model, and then runs the load script. A partial reload will not do this. Instead it keeps all tables in the data model and then executes only Load and Select statements preceded by an Add, Merge, or Replace prefix.

Partial reload must first be configured in the load script in the Data load editor. For information, see Partial reload.

Manually reloading app data

You can reload an app manually, adding a reload task to the reload queue.

Do the following:

• Click on the app and select Reload now.

Viewing reload history for an app

Reload history contains the reload history for the selected app. Use it to help troubleshoot scheduled reload issues. You can view the status, start and end times, and duration of past and current reloads. You can also view and download a corresponding log file.

There are two ways to view the reload history for an app.

• In the list view of apps, click the date in the Last modified column and select View reload history.

• Select Details of an app, and click Reload history.

On the Reload history page, click the View button to view the reload summary. Optionally, you can also download a detailed log file. When the limit for the number of logs stored is reached, new logs will replace the oldest logs, on a first in, first out basis.

You might want to cancel a reload of your app if the reload is taking too long or the app has been updated with new data and you want to start a new reload. To cancel a reload, go to Reload history, and click Cancel.

You can see the canceled reload in your Reload history.

Viewing and deleting reload schedules

Tenant and analytics admins can view and delete reload schedules from the Management Console. This is done on the Schedules tab.

Managing reload schedules