A very common problem is when a QVD file is accessed by multiple applications where one application is storing data into the QVD file while another application is attempting to write to it or read from it.
Environment:
Qlik Sense Enterprise on Windows
QlikView
Resolution
For concurrent reloads:
Implement a retry script. This is a common and a safe solution to approach locked files to make sure that the process is finished by the system.
It will not unlock the file but will automate the detection process.
See article: During STORE command the File Save occasionally fails
Locked by an external process
See Process Monitoring - How to find locked files and the processes locking them
Storage issues
Review the QVD file storage.
- Are they stored and accessed via a UNC path over the network?
Latency will lead to locking issues.
- Is the disk experiencing slowness or errors?
Disk latency and errors will cause locking issues.
