Qlik Community

New to Qlik Sense

Discussion board where members can get started with Qlik Sense.

Announcements
Qlik® Product Spotlight: Discover what’s possible. Get more from our products.
See for yourself. Register today.
abhaysingh
Valued Contributor II

Qliksense Engine Utilization Is high than expected!!

Hey guys,

I have observed in my environment that even in Idol Situation, Qliksense Engine Consuming RAM which is near about 43gb in my case,

No user Login, no one accessing Hub etc..

Does any one have any idea about it??

Regards

abhay

16 Replies
shraddha_g
Honored Contributor III

Re: Qliksense Engine Utilization Is high than expected!!

is there any task scheduled?

MVP & Luminary
MVP & Luminary

Re: Qliksense Engine Utilization Is high than expected!!

Qlik Sense probably does not free memory, but keeps it allocated for itself. This should be no problem unless you want to run other resource hungry software like a database management system on the same server (which is a bad idea anyway). If you feel more comfortable with lots of free ram on your server then restart the Qlik Sense services often or add more ram. You won't see any effect on performance though. It's just for your peace of mind. Qlik Sense will run fine regardless.


talk is cheap, supply exceeds demand
abhaysingh
Valued Contributor II

Re: Qliksense Engine Utilization Is high than expected!!

Nopes as i mentioned it is in Idle  situation

abhaysingh
Valued Contributor II

Re: Qliksense Engine Utilization Is high than expected!!

Hi Gysbert,

Thanks for your reply, even i have observer when some task are scheduled and multiple work is there, than RAM goes till 82 % utilization and does not goes down after completion of work.

My Application Size is not more than 1 gb. and 5 users only.

Pls suggest

shraddha_g
Honored Contributor III

Re: Qliksense Engine Utilization Is high than expected!!

what is the size of ram?

MVP & Luminary
MVP & Luminary

Re: Qliksense Engine Utilization Is high than expected!!

Ok, let's try that again:

Qlik Sense probably does not free memory, but keeps it allocated for itself. This should be no problem unless you want to run other resource hungry software like a database management system on the same server (which is a bad idea anyway). If you feel more comfortable with lots of free ram on your server then restart the Qlik Sense services often or add more ram. You won't see any effect on performance though. It's just for your peace of mind. Qlik Sense will run fine regardless.


talk is cheap, supply exceeds demand
Highlighted
Vegar
Valued Contributor II

Re: Qliksense Engine Utilization Is high than expected!!

This blog post The QlikView Cache by hic‌ might help you understand why the ram is utilized even when you have no active users.


Quote:

  • Memory is not returned, when the document is unloaded. Cache entries will usually not be purged until the RAM usage is close to or has reached the lower working set limit. QlikView will then purge some entries and re-use the memory for other cache entries. This behavior sometimes makes people believe there is a memory leak in the product. But have no fear – it should be this way. So, you do not need to restart the service to clear the cache.
Please ekskuse my Norglish and Swenglish typos.
abhaysingh
Valued Contributor II

Re: Qliksense Engine Utilization Is high than expected!!

ram size =100gb, 12 core processors

abhaysingh
Valued Contributor II

Re: Qliksense Engine Utilization Is high than expected!!

Hi vegar,

but every time i can not restart the services.. this issue becomes continuous now, any alternative for that?

Community Browser