Large application support
With large application support, you can work with applications that are larger than the standard application size. You can configure one or more spaces in Qlik Cloud to support large applications, ensuring they have the memory needed to run efficiently.
How large application support works
Large application support provides additional memory through engines of different sizes in engine pools. Every application is loaded into an engine at runtime. An autoscaling mechanism dynamically allocates resources as needed and routes large applications to the best-suited engines. This ensures that you can work with an application even if it requires more resources than a single engine can provide.
The total large application capacity determines how many applications larger than the standard application size that you can have open at the same time. Only the in-memory size of the application is counted, not the number of user sessions on each application.
Large application capacity options
Large application capacity is available in 20 GB and 100 GB packs for the following subscriptions:
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Qlik Cloud Analytics Premium
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Qlik Cloud Enterprise
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Qlik Sense Enterprise SaaS
You can mix and match capacity packs to allocate the right amount to your tenant. Qlik Cloud Enterprise includes 40 GB of large application capacity by default.
Qlik provides support for capacity planning and provisioning. Contact Qlik Sales for more information.
Large application support is not available in Qlik Anonymous Access subscriptions.
Supported application capacity
The maximum supported application size varies depending on your subscription level and the assigned large application capacity.
| Application type | Supported application size (in-memory) |
|---|---|
| Standard application for Qlik Sense Enterprise SaaS | Up to 5 GB |
| Standard application for Qlik Cloud Analytics Premium | Up to 10 GB |
| Standard application for Qlik Cloud Analytics Enterprise | Up to 15 GB |
| Large application | Up to 50 GB |
Supported application size based on assigned capacity
If the large application capacity assigned to your tenant is less than 50 GB, the maximum supported application size is equal to the assigned capacity. The table shows the supported application size when the total large application capacity is 20, 40, or 50 GB.
| Assigned large application capacity | Supported application size (in-memory) |
|---|---|
| 1 pack of 20 GB | 20 GB |
| 2 packs of 20 GB | 40 GB |
| 50 GB or more | 50 GB |
Estimating your large application capacity needs
To determine your required large application capacity:
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Count the in-memory size of the applications you need to have open at the same time.
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If you experience peak memory constraint errors when loading data into an application, consider increasing the capacity.
Example: Calculating capacity needs
If you have five applications with the average size of 15 GB and you want to open them all at the same time, you need: 5 applications x 15 GB = 75 GB of capacity
To support this, you could:
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Assign four packs of 20 GB to your tenant (total 80 GB).
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Purchase one 100 GB pack to allow for future growth.
Working with large applications
Administrators can define which spaces that allow large applications. You can see whether a space allows large applications in the Allow large apps column of the Spaces table.
Enabling large application support for a new space
Do the following:
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In the Administration activity center, select Spaces.
- Click Create new.
- Enter the space details and select the Allow large apps checkbox.
- Click Create.
Enabling large application support for an existing space
Do the following:
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In the Administration activity center, select Spaces.
- Locate the space, click
, and select Edit space. - Select the Allow large apps checkbox.
- Click Save.
For more information about managing spaces, see Managing spaces.
Considerations when using large applications
When using large applications, consider the following:
Capacity usage
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The large application capacity is only used for applications that exceed the standard application size.
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Each open instance of an application counts toward the large application capacity. For example, if a source application is open in a shared space and a published copy of the application is open in a managed space, both count as separate instances.
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When you open a large application, it counts against your large application capacity, whether you open the application with or without data.
Space behavior
- Spaces that allow large applications are not explicitly labeled in Qlik Cloud Catalog. To indicate that a space is intended for large applications, use the description field of the space.
- Applications can be moved between standard spaces and spaces with large application support. However:
- If an application exceeds the standard in-memory limit and is moved to a standard space, it cannot be opened. You can still download the application and view its details in activity centers.
- If large application support is removed from a space, the application remains, but it cannot be opened it it exceeds the standard in-memory limit.
Reloading large applications
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When you reload data from a space with large application support, the reload runs on that space.
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The peak reload size for applications in spaces without large application support is up to 34 GB. If a reload exceeds this limit, move the application to a space that allows large applications.
Evaluating large applications
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You can evaluate large applications up to the size limit specified by your large application capacity. For more information, see Application performance evaluation.
Monitoring large application capacity
Administrators can track the usage of large application capacity from the Administration activity center.
View total large application capacity
Go to Home > Capabilities to see the total large application capacity assigned to your tenant.
Monitor current usage
The Large application utilization chart on the Home page shows current usage and peak capacity for the day. For more information, see Monitoring resource consumption.
Identify spaces allowing large applications
View the Allow large apps column on the Spaces page in Administration to see which spaces that allow large applications.
Track application sizes
View application sizes from the Applications tab on the Content page.
Monitor in-memory application size and memory usage
Use the App Analyzer monitoring application to track in-memory application size and memory usage over time.
The App Analyzer application is part of the Qlik Cloud Monitoring Apps, which are community-supported and not officially supported by Qlik. To quickly install and update these applications, use the Qlik Cloud Monitoring Apps Installer with Qlik Automate. For details on installation and support, see App Installers.
For more information, see: