topic Re: QMC Tasks and Windows Patching in QlikView

QMC Tasks and Windows Patching

johnca — Mon, 26 Jan 2026 18:19:17 GMT

Hi all, I am either not searching the right terms, or it hasn't been asked yet.

Is it necessary to disable all (primary) tasks in a QlikView QMC when applying Windows patches, etc?

My thought is stopping the services, apply the patches, then restart services would suffice.

Can someone point me to a document that explains this so I can educate our admins? (and myself)

We're running version April 2019 SR3 (12.4 SR3) on Windows 2016.

Thanks!

John

Re: QMC Tasks and Windows Patching

Lucas_Gatling — Wed, 28 Jul 2021 11:44:06 GMT

@johnca Here is our KB article on best practices when applying Windows patching and OS upgrades:

https://community.qlik.com/t5/Knowledge-Base/Impact-of-Windows-Operating-System-Upgrades-and-Patches-on-Qlik/ta-p/1715827

Re: QMC Tasks and Windows Patching

johnca — Wed, 28 Jul 2021 14:15:50 GMT

Thank you, @Lucas_Gatling, but that article does not address my question on whether or not tasks need to be disabled when applying patches or upgrades. Is there another KB article that does?

Re: QMC Tasks and Windows Patching

Lucas_Gatling — Wed, 28 Jul 2021 14:21:39 GMT

@johnca For Windows patching no you do not need to disable Reload tasks or stop any services. The patches will just install on the server and restart like normal. No QlikView services need to be turned off prior to Windows patch installation.

Re: QMC Tasks and Windows Patching

johnca — Wed, 28 Jul 2021 14:35:18 GMT

Great @Lucas_Gatling , and as I suspected. But, is there a KB article (or other Qlik document) I can point our admins to? Our IT can be quite detail oriented for these things.

Re: QMC Tasks and Windows Patching

Lucas_Gatling — Wed, 28 Jul 2021 14:38:25 GMT

@johnca unfortunately we do not specifically for that. The KB article that I originally shared is the closest article we have for that topic.

Re: QMC Tasks and Windows Patching

johnca — Wed, 28 Jul 2021 15:02:37 GMT

@Lucas_Gatling I accepted your response as the solution, but I must say this should be addressed in more depth or at least mentioned in a KB or maintenance document. Just sayin'...

Thanks for the quick answers though too!

Re: QMC Tasks and Windows Patching

Lucas_Gatling — Wed, 28 Jul 2021 15:04:40 GMT

@johnca Thanks for your valuable feedback and we will look into getting that addressed in a KB article in the future.

Re: QMC Tasks and Windows Patching

johnca — Thu, 29 Jul 2021 14:10:50 GMT

@Lucas_Gatling , can I also assume then that if another database QlikView tries to connect to is undergoing patching, say our ERP database, then QlikView tasks also do not need to be disabled? The task will just fail right?

Re: QMC Tasks and Windows Patching

Lucas_Gatling — Thu, 29 Jul 2021 14:12:33 GMT

That's correct. You shouldn't have to disable any QlikView tasks.