Qlik NPrinting task run but do not progress: stuck on same percentage

[Andrea_Bertazzo]

Qlik NPrinting tasks appear to run but are stuck on the same percentage.

Qlik NPrinting can work for days or even weeks, completing tasks correctly. Suddenly, all task stops at different levels of execution. New tasks start, but stay on 0%.

Idle sessions have already been removed by applying How to remove the Idle Connections from Nprinting Related processes.

This error message is shown in the rabbit logs in C:\ProgramData\NPrinting\RabbitMQ for a default installation:

{{badmatch,{error,eacces}}

Qlik NPrinting is installed on a Windows 2019 server, and the version of Qlik NPrinting works with RabbitMQ 4 or higher (see the system requirements page to identify your Qlik NPrinting track).

Environment

• Qlik NPrinting all versions

Resolution

Restarting all Qlik NPrinting and Qlik Sense services can temporarily resolve the problem.

It is possible to mitigate the problem by installing the latest release of Qlik NPrinting, but this is still not a full solution, as the same issue may repeat due to a defect in Windows Server 2019.

A complete solution is to upgrade the operating system where Qlik NPrinting is installed to a higher version.

Cause

The problem is caused by specific updates affecting Windows file system components in Windows Server 2019 that occasionally prevent system access for our messaging service.