topic Re: NPrinting Engine Down in Qlik NPrinting

NPrinting Engine Down

dtacbi2020 — Mon, 14 Mar 2022 11:52:33 GMT

Hi Team,

From last couple of day Qlik NPrinting Engine got down !!

First time on 11th Feb 2022 (1:45 PM PM BKK) we found Engine got down and to fix we restarted the all NPrinting services and Engine is back.

Now, today again on 14th Feb 2022 (5:45 PM BKK) got down and again to fix we restarted the all NPrinting services and Engine is back.

May I request to please help us to understand the root cause.

On 10th March 2022, we upgraded the Qlik NPrinting version and after that only this issue started occurred.

Previous Version :
Qlik NPrinting February 2020
Version: 20.0.2.0

Current version Upgrade to :
Qlik NPrinting May 2021 SR2
Version: 21.14.5.0

Thanks
Santosh Kumar

Re: NPrinting Engine Down

Lucas_Gatling — Mon, 14 Mar 2022 12:53:12 GMT

Santosh,

There could be a number of reasons for why the Nprinting engine went offline. Please see the following KB article:

https://community.qlik.com/t5/Knowledge/How-to-Resolve-Qlik-NPrinting-Engine-Offline-Status/ta-p/1716166

Re: NPrinting Engine Down

Ruggero_Piccoli — Tue, 15 Mar 2022 08:34:18 GMT

Hi,

Based on the logs it seems that the Qlik NPrinting Messenger service was down. I would like to suggest to:

upgrade to May 2021 SR3, and to SR4 when it will become available, because they have some improvements on the messaging service
export also the Windows events logs (Application and System) so we can check what happened to the services

Best Regards,

Ruggero

Re: NPrinting Engine Down

dtacbi2020 — Tue, 15 Mar 2022 09:16:51 GMT

Hi Ruggero,

Thanks for prompt reply !!

Please find the attached windows event log file for your reference.

Thanks

Santosh Kumar

Re: NPrinting Engine Down

Ruggero_Piccoli — Tue, 15 Mar 2022 14:04:42 GMT

Hi Santosh,

Thanks for the logs. We checked them but the Application log has only a single event.

So we suggest to first upgrade to May 2021 SR3 that has some improvements and test if this solves. If after the upgrade you still have the issue please open a support case with:

Windows event logs. Please be sure that they are not empty
Qlik NPrinting log files
RabbitMQ log files you can find in the folder C:\ProgramData\NPrinting\RabbitMQ\log
details like hardware resources and software configuration
steps to reproduce. For example check if the issue appears after starting the creation of a huge report.

Best Regards,

Ruggero

Re: NPrinting Engine Down

dtacbi2020 — Fri, 29 Apr 2022 05:34:34 GMT

Thanks Lucas,

All the change i have done but issue still persist.

Qlik Support team is also working but yet not any concrete reply from them as well.

Thanks

Santosh

Re: NPrinting Engine Down

dtacbi2020 — Fri, 29 Apr 2022 05:35:46 GMT

Hi Ruggero,

Sorry for late response !!

All the change i have done but issue still persist.

Qlik Support team is also working but yet not any concrete reply from them as well.

Thanks

Santosh