Table of Contents
The following release notes cover the versions of Qlik DataTransfer released in April 2022.
What's new in Qlik DataTransfer April 2022
Qlik DataTransfer April 2022 release does not have any new feature, but it has fixes for the issues described below.
Resolved Defects
Qlik DataTransfer April 2022 comes with fixes for the issues described below.
April 2022
QDT services restart and current upload are still showed "In progress".
Jira issue ID: DTB-53
Description: If for some reason the copy of a new file in a Data Folder is failed (like for example if there is no more space available, or if I just cancel the copy in the middle of the copy) then the QDT service restarts, status stuck to “In progress”.
Qlik REST connector user interface issue with query headers and parameters in the QDT.
Jira issue ID: DTB-54
Description: The problem occurs when trying to create a REST connection with more than one query headers and parameters. It is not possible to add another parameter neither a header in the REST connectors interface when using the QDT.
Improvements
Qlik DataTransfer April 2022 comes with below improvements in current features.
Improved upload process by adding validation and error handling.
Description:
- To avoid the errors coming while parallel upload of a same file, a file will be added in queue.
- Logs will have percentage value for every uploaded chunk.
- If there is an error 423 coming from QCS due to some file is locked due to reloading in QS app, QDT will retry once again after 5 seconds. Also, to avoid the file locks on local machine due to frequent change in uploading files,
- QDT copies the file to temporary location in local machine and then starts upload.
Known issues and limitations
The following issues and limitations were identified at release time. The list is not comprehensive; it does however list all known major issues and limitations.
General
- Qlik DataTransfer only uploads files with size less than 6 GB.
- You can upload a maximum of 200 tables or files per dataset. If your dataset has more than 200 tables or files, only the first 200 are uploaded. For example, if you select more than 200 tables in a data connection or Qlik app, or if you add a data folder with more than 200 files.
- When reloading apps created in Qlik Sense Desktop, Qlik DataTransfer does not support connections to Essbase.
- Files uploaded using Qlik DataTransfer must be manually deleted from SaaS editions of Qlik Sense. Qlik DataTransfer does not delete files from SaaS.
- While Qlik DataTransfer can extract data from any .qvf file, it can only reload the data in that .qvf if it was created using Qlik Sense Desktop and all of the data sources for that .qvf are accessible from the Qlik DataTransfer machine.
- Qlik Sense Desktop cannot be installed on server operating systems. Therefore, if you install Qlik DataTransfer on a server operating system, and wish to use the QVF refresh functionality, you must create the app on a desktop operating system and then copy your QVF files to the server. All data sources that are used in the QVF file must be accessible to the QVF load script when it is run on the server by Qlik DataTransfer.
- Qlik DataTransfer should not be used to upload data from Qlik apps that use section access or have load scripts that control user access to data. Protected data might be exposed to unauthorized users.
- Incremental load is not supported.
Work around: Use Qlik Sense Desktop to create an app including incremental load logic, and reload it using the Qlik Apps.
- You cannot edit the query or data sources of the Data Connection.
- There is no notification of upload and reload failures for scheduled tasks. To determine if your data has uploaded successfully, please check the last execution details or consult the log files.
- Mapped drives are not supported. You can use a shared path instead: \\<machine-name>\folder.
- If you change the service log on account after configuring Qlik DataTransfer with your tenant, you must reconfigure the tenant and connections.
- QlikView apps are not automatically reloaded by Qlik DataTransfer when data sources in apps are updated with new data. QlikView apps must be manually reloaded and saved for Qlik DataTransfer to upload data to a SaaS edition of Qlik Sense tenant.
- If write access to configured space is revoked, the upload will be failed and results in errors which can be seen in the logs but not in the UI.
- In Data Folder, if unsupported files i.e..png, .bmp, etc. are resided along with supported files and QDT tries to upload them it fails to upload unsupported files. Hence it will show status as ‘Failed’.
- On upgrade from the Oct2020 release or later, if a user chose a different location for storing configuration files or chose different ports to run QDT from configuration file - Service.conf – the installation will override it. The mitigation to this known issue is to backup this file prior to the upgrade and update the Service.conf file with earlier changes after the upgrade completed.
- You changed the configuration folder location from C:\ProgramData\Qlik to some another location in Service.conf file and when you uninstall Qlik DataTransfer, it is not deleting the configuration folder.
- While the Daylight Saving is happened, Qlik DataTransfer changes the scheduled hour. So schedules in Qlik DataTransfer are updated on new DST time.
- Qlik DataTransfer does not support the use of web proxies. If your system uses proxies, you must add a proxy bypass rule specifically for Qlik DataTransfer.
Upgrade notes
Qlik DataTransfer older versions
Backup recommendations
It is important that you make a backup of the folder C:\ProgramData\Qlik\Sense\DataTransfer before upgrading, to be able to recover the installation if the upgrade fails.
If you are installing or upgrading on machine where Qlik Sense Enterprise for Windows is already installed, please make sure you install/upgrade Qlik DataTransfer using Qlik Sense service(s) user account.
System requirements notes
Please refer to the online help for information about the requirements for Qlik DataTransfer.
System requirements for Qlik DataTransfer
About Qlik
Qlik’s vision is a data-literate world, where everyone can use data and analytics to improve decision-making and solve their most challenging problems. A private SaaS company, Qlik offers an Active Intelligence platform, delivering end-to-end, real-time data integration and analytics cloud solutions to close the gaps between data, insights and action. By transforming data into Active Intelligence, businesses can drive better decisions, improve revenue and profitability, and optimize customer relationships. Qlik does business in more than 100 countries and serves over 50,000 customers around the world.
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