Usage of *.wt Files in SystemLink Server

Updated Feb 2, 2023

Reported In

Software

  • SystemLink Server

Issue Details

I noticed several *.wt files with different sizes are present in my computer after installing SystemLink Server. What are these *.wt files and how is SystemLink using them?

Solution

The *.wt files are collections in a Mongo database (MongoDB), which are similar to tables in relational databases. These files are located in the C:\ProgramData\National Instruments\Skyline\NoSqlDatabase\db folder.

The MongoDB service used in SystemLink Server stores and manages these files in the back-end. The files contain a variety of information used by the server for its operation, therefore the *.wt files shouldn't be manipulated manually as it can lead to malfunctions within the server.

Additional Information

Some collections in the SystemLink MongoDB can have a large size, for example the files used by the SystemLink Package Repository can increase as more packages and feeds are added to the server.