topic Re: QlikView Memory Utilisation in Archived Groups

QlikView Memory Utilisation

Anonymous — Tue, 22 Jul 2025 17:59:49 GMT

Hi All,

We recently embarked on a project to MOVE our BI Application to a new Data Centre. Internally within our company there are some discussions going on about how much memory must be allocated to the new platform. Any ideas on the best Memory Allocation based on below, would be very helpful.

Old Platform

In the old platform we were using QlikView 10.0

There was no QlikView Publisher

Only one server was used

This was a physical blade server

Collective QVD size is ~150GB

Collective QVW size is 3GB

Memory utilization is average 80GB (Total allocated is 132GB)

New Platform

In the new platform we use QlikView 11.20

We are also using QlikView Publisher

Two servers. One to host QVS and QVWS and the other to host Publisher.

We are using Virtual Machines

If any more information is needed I'm happy to provide.

Many thanks in advance.

Sheron

Re: QlikView Memory Utilisation

Magnus_Berg — Wed, 13 Apr 2016 07:08:16 GMT

Hi Sheron, memory usage should be about the same as before, except that memory overhead when running tasks is now moved to a separate publisher.

What is the old environments Document Timeout setting? http://help.qlik.com/en-US/qlikview/12.0/Subsystems/QMC/Content/QMC_Documents_UserDocuments_Server_Performance.htm?q=document%20timeout This is the setting that releases applications from memory (8hr default), by reducing this you can lower memory consumption a lot.

Cheers

Re: QlikView Memory Utilisation

Anonymous — Wed, 13 Apr 2016 07:31:16 GMT

Hi Magnus, many thanks for your response. And that makes perfect sense to me.

I will find out the 'timeout setting parameter'

Sheron

Re: QlikView Memory Utilisation

Anonymous — Wed, 13 Apr 2016 07:47:34 GMT

Hi Magnus,

We have indicated the timeout as 'blank' in the old environment

Re: QlikView Memory Utilisation

Magnus_Berg — Wed, 13 Apr 2016 07:55:52 GMT

Sorry, you are in the wrong window. The setting should be under Settings QlikView Server, not under the document

Cheers

Re: QlikView Memory Utilisation

Anonymous — Wed, 13 Apr 2016 07:58:20 GMT

Many thanks for your recommendation Magnus

Re: QlikView Memory Utilisation

Magnus_Berg — Wed, 13 Apr 2016 12:11:08 GMT

Great Sheron, if it's helpful please select the answer as Correct Answer

Cheers

Re: QlikView Memory Utilisation

arish_delon — Thu, 21 Apr 2016 15:18:20 GMT

Hi Sheron,

Magnus mean the server performance tab.

Re: QlikView Memory Utilisation

Magnus_Berg — Thu, 21 Apr 2016 15:56:15 GMT

No, It's under the Documents tab (same window).

Cheers

Re: QlikView Memory Utilisation

arish_delon — Thu, 21 Apr 2016 19:52:28 GMT

Hi Magnus, changing the 480 minutes (8 hrs. from the time the document is published it will be available in memory) will reduce (300 minutes) or increase (720 minutes) memory usage.

Does the "Document timeout" correlates to Sessions? (Example: Maximum Inactive Session Time, Possible Session Timeout, Maximum Total Session Time)

If "Document Timeout" is set for 60 minutes, Possible Session Timeout, Maximum Inactive Secession Time should be set less than 60 minutes?

Re: QlikView Memory Utilisation

Magnus_Berg — Fri, 22 Apr 2016 06:44:41 GMT

Hi Arish, Document Timeout is when untouched applications is flushed out of memory. As soon as someone uses the app the count will restart. Maximum Session timeout is time when an non-active session is shut down, after last session of an app times out the Document timeout starts ticking. The maximum session timeout is intertwined with session timeout in the web server. If the web server has a short timeout the user will be disconnected even with a long maximum session timeout in QlikServer.

Read more under documentation on the different timeout settings:

Performance ‒ QlikView

Hope that this helps

Regards

Magnus