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Qlik Sense Server 3.0.1 Hub internal server error

We have installed Qlik Sense Server 3.0 and then immediately upgraded it to 3.0.1 and we get this two messages:

With firefox: First it says that there is an internal server error, when we try to refresh the page it gives us "An error occurred: No Engine service is available for the following app: app:_hub", after several refreshes it lets us to connect to hub. If we refresh it while we're in a hub it either refreshes or gives us internal error again.

With chrome: Same as with firefox but you have to refresh like 20-30 times before it will let you into hub.

QMC works perfectly fine with both browsers.

Restarting Qlik Sense Server Dispatcher does nothing.

Any idea which logs should I exactly look into or what may cause these type of errors?qlikerror.PNG

qlik error2.PNG

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17 Replies
korsikov
Valued Contributor II

Re: Qlik Sense Server 3.0.1 Hub internal server error

Faced with same problem in one aplication. other application works fine

My steps.

open application

use smart search - goto c:\ProgramData\Qlik\Sense\Apps\Search\ delete all sub folder

reload app, try use  smart search and faced with problem "internal engine error"

QS 3.0.1

Try use FF, Chrome, IE 11 - same behevior

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Re: Qlik Sense Server 3.0.1 Hub internal server error

The problem is whit the whole hub not just an app, it has already has occurred on 2 separate Windows Server 2012 machines with clean install. I had to install version 2.2.3 which seems to work just fine, but when I upgrade it to 3.x it throws errors again.

korsikov
Valued Contributor II

Re: Qlik Sense Server 3.0.1 Hub internal server error

i think it's problem linked with smart search in objects

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Re: Qlik Sense Server 3.0.1 Hub internal server error

Will try it next time I will need to install QS, thank you.

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Re: Qlik Sense Server 3.0.1 Hub internal server error

Hi Alexander,

Have you able to fix the issue with Smart Search yet?

korsikov
Valued Contributor II

Re: Qlik Sense Server 3.0.1 Hub internal server error

nope. Qlik support write "R&D developer has isolated the stack call responsible for this behavior and is working full time to resolve it. Unfortunately, the only workaround at the moment is not to use the search."

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Re: Qlik Sense Server 3.0.1 Hub internal server error

Hi Alex,

Have you seen this post https://community.qlik.com/message/1107588#1107588

I’m trying to help one of my clients with this issue. Still not sure where to look. I might try to see what’s in that link sit in their cases as well

Nhu Ngo

AtoBI Pty Ltd

m: +61 4 3357 9535 t: +61 3 9017 1820

<http://www.atobi.net/>[EmailSig_YT]<https://youtu.be/nwC7PsL5nzs>

<http://www.apacciooutlook.com/digital-magazines/Business-intelligence-special-2016/#page=19>

Not applicable

Re: Qlik Sense Server 3.0.1 Hub internal server error

I'm experiencing the exact same issue.  Random internal error when searching with QS 3.0.1.  Issue occurs on different OS and browsers so it's not related to the client.  Internal Engine error.png

korsikov
Valued Contributor II

Re: Qlik Sense Server 3.0.1 Hub internal server error

Good news, everyone.

Qlik support team report- problem with smart search fixed in 3.1 .

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