topic Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips in Scalability

Qlik Sense Scalability Tools Connection Troubleshooting Tips

Daniel_Larsson — Fri, 20 Oct 2017 07:02:44 GMT

I put together check lists as a help troubleshooting connection settings problems when using Qlik Sense Scalability Tools.

Using header auth

Is the app published?
Can you connect manually to the virtual proxy with header auth using modify header plugin in firefox, fiddler or similar.
1. If it works, make sure the user which get logged in is the one from the header not your ntlm user.
2. Can the header user access the app you want to simulate?
If manual connection (1) with header works, make sure all these settings correspond to your tool settings
1. VirtualProxyPrefix settings same as Prefix defined in QMC on the virtual proxy
2. HeaderName same as Header authentication header name on the virtual proxy
3. ConnectionType set to Header.
4. Server is set to the same server name as the certificate, default fully qualified domain name, without defining protocol etc, i.e. myserver not https://myserver/hub.
5. A default sense installation uses https and a self-signed certificate. Make sure the SSL checkbox is checked when using SSL or TLS (default) and the AllowUntrustedCertificate checkbox is checked if using the self-signed or any other “untrusted” certificate.
If Connect to App doesn’t work, try doing a simple scenario of 1 user 1 iteration with only a small timerdelay in the scenario, then execute this using the executor (i.e. not connect to app). Does this get any errors?
If you are getting license access denied, make sure the header users have an appropriate amount of tokens allocated.

Using NTLM auth

Make sure the user has access to the app by manually connecting to it.
If manual connection (1) with header works, make sure all these settings correspond to your tool settings
1. VirtualProxyPrefix settings same as Prefix defined in QMC on the virtual proxy or blank if using root (default)
2. ConnectionType set to NTLM.
3. Server is set to the same server name as the certificate, default fully qualified domain name, without defining protocol etc, i.e. myserver not https://myserver/hub.
4. A default sense installation uses https and a self-signed certificate. Make sure the SSL checkbox is checked when using SSL or TLS (default) and the AllowUntrustedCertificate checkbox is checked if using the self-signed or any other “untrusted” certificate.
If Connect to App doesn’t work, try doing a simple scenario of 1 user 1 iteration with only a small timerdelay in the scenario. Does this get any errors?
If you are getting license access denied, make sure the header users have an appropriate amount of tokens allocated.

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Anonymous — Sun, 13 May 2018 13:23:54 GMT

Hi, I have checked most of the troubleshooting tips

Still, I'm not able to connect to the App Structure, please give me some guidance, I have no idea what I can do more or how to spot the error I'm making.

Message error: Failed to get app structure. Failed to connect to the app

Some context & actions already performed:

- client server I setup the Scalability tool has other software running (Amazon cloud machine)

- I have a Nginx reverse proxy in front of Qlik Sense (Amazon)

- QMC and Hub in a Amazon Cloud Server as well, all three in different machines

- My certificate (dunno why) are untrusted by I exported from QMC and I'm calling them on Nginx configuration

Trial and error based on community suggestions:

- I can make the manually header authentication

* Virtual Proxy works

* Tokens are automatically assigned for user

- I have tried to change the ports of the proxy to 81 in QMC and Client but no different result (didn't touch into Nginx config)

- Tried NTLM as well (didn't touch into Nginx config only scalability interface)

Personal background and Experience:

- I'm new into this topic's of back end config, probably some rookie mistake, as well some bad terminology use in the description.

I'm currently lost on this topic any details or specifics missing for troubleshooting let me know so I can describe them.

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Daniel_Larsson — Tue, 15 May 2018 10:56:49 GMT

I would assume it has something to do with putting nginx inbetween. The tool will add a header with the simulated user according to settings. In your case the header X-QLIK-HEADER-NAME with the first username of Exerciser_1 as it looks like. is this header properly sent through to the sense server?

Can you try doing this part?

4. If Connect to App doesn’t work, try doing a simple scenario of 1 user 1 iteration with only a small timerdelay in the scenario. Does this get any errors?

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Anonymous — Tue, 15 May 2018 12:00:52 GMT

Hi Daniel,

Thank you for replying, I reviewed the check list for authentication header.

Using header auth

Check
Check
Manual connection - check
1. Check
2. Check
3. Check
4. Which certificate? SSL I have used in the Nginx Reverse Proxy? Is the IP address enough?
5. Check
Done – Same message as the picture "Failed to get the App Structure"
Checked, Tokens allocated successfully

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Daniel_Larsson — Wed, 16 May 2018 07:07:15 GMT

I rewrote to bullet 4 to make it a bit clearer what I meant. Changing concurrentusers and iterations won't make a difference for the connect app as it will only use one user anyway. So what I meant was to run it through the executor, which should give a different error message, which might or might not help us.

When doing the manual connection. Did you use a header modifying plugin, setting the header and user according to your settings (i.e. in your specific case X-QLIK-HEADER-NAME : excerciser_1). Then did it show has the user exerciser_1 logged in, and the app showing up in the hub?

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Anonymous — Wed, 16 May 2018 09:09:42 GMT

Ok, based on your guidance we have a different error:

- I add a scenario

- I used the same user as the manual authentication (using the header changer - an Chrome extension) and gave me on the executor the following error:

09:00:52 Workers:0 Errors:0 Warnings:0 Requests:0 Sessions:0

09:00:52 Illegal user id: some-domain\some-user\nParameter name: headerUserId

09:01:02 Workers:0 Errors:1 Warnings:0 Requests:0 Sessions:1

Test Execution Finished.

WarningCount: 0

ErrorCount: 1

Finishing writing logs...

this was done on test Client server, I'll try to repeat it on my personal computer to see if I get the same error message. It's really weird this having different results with the same properties...

Cheers Daniel

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Anonymous — Thu, 17 May 2018 11:06:12 GMT

Problem solved:

The issue was with dynamic header expression " $ud\\$id " was blocking the authentication, I have added the double "\\" on the user and still didn't manage to authenticate.

Once I changed to " $id@$ud " and edited on Scalability tool the user equally, I manage to connect with the app.

Conclusion: Do not use " $ud\\$id " it seems it needs a specific configuration or might getting in conflict with my Reverse Proxy that I have in front of Qlik Sense machine.

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

vgutkovsky — Fri, 05 Jun 2020 23:18:44 GMT

Thank you very much for posting this solution, was having the exact same issue and switching to $id@$ud fixed it!

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Anonymous — Tue, 22 Sep 2020 09:20:51 GMT

Just downloaded the latest 5.10 package to a Windows 2012 Server, one of the nodes of a multi-node Qlik Sense site. The downloaded ZIP file does show the "unblock content" flag any more (saw this in earlier versions). Hence I just extracted it and tried to run the QlikScalabilityTools.exe. It is crashing instantly after start. Why could this be?

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Daniel_Larsson — Tue, 22 Sep 2020 13:00:50 GMT

@Anonymous wrote:
Just downloaded the latest 5.10 package to a Windows 2012 Server, one of the nodes of a multi-node Qlik Sense site. The downloaded ZIP file does show the "unblock content" flag any more (saw this in earlier versions). Hence I just extracted it and tried to run the QlikScalabilityTools.exe. It is crashing instantly after start. Why could this be?

You're right this is usually connected to the zip file being blocked. Can you try using 7zip to unzip it instead of built-in windows unzip to see if it makes a difference? It will automatically remove the windows block.

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

vegard_bakke — Fri, 13 Nov 2020 15:24:05 GMT

Yet another one struggling with 'Please verify NTLM user and app!'

Is the Scalability Tool logging the connection somewhere? Can I see the frames that Qlik Sense sends on the websocket?

It would have been great if we could separate the logging in, and opening the app. To better know where to debug.

By first complete the login, the tool could even fetch the list of available apps. This way, it will confirm that the NTLM itself is working. As well as eliminating the chance of choosing an app that the user doesn't have access to.

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

RubendeEusebio — Fri, 20 Nov 2020 15:37:06 GMT

Hi, I'm not able to connect to the app structure by NTLM connection. I have the next error:

Failed to get app structure: Failed to connect to application

If I try to execute a simple scenario but the same error occurs.

I've checked that I can connect manually to the app, virtual proxy works and tokens are assigned for user .

Could you help me?

Thanks, Rubén

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Daniel_Larsson — Mon, 23 Nov 2020 14:48:47 GMT

@RubendeEusebio wrote:

If I try to execute a simple scenario but the same error occurs.
I've checked that I can connect manually to the app, virtual proxy works and tokens are assigned for user .

Hi,
Thank you for trying those things first.

There might be a bug related to the SDK for June release specifically affecting some users connecting with NTLM. For those using sept or nov instead solves the problem. Haven't been able to reproduce it myself, so may I ask , if you can say.

1. What's the windows version of the load client?
2. What's the windows version of the server?
3. Which release are you choosing in the tool?

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

RubendeEusebio — Mon, 23 Nov 2020 16:12:40 GMT

Hi,

Thank you for your reply.

The Windows versions of the server and load client are Windows Server 2016 on both

and I use Qlik Sacalability Tools v5.10.1

Regards,

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Daniel_Larsson — Tue, 01 Dec 2020 14:52:52 GMT

For what we can see this is exclusively a problem with the the Jun2020 option. Will upload a version fixing this, however until then, choosing one version later is the workaround.

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Daniel_Larsson — Wed, 02 Dec 2020 15:10:22 GMT

NTLM problems for June 2020 option should now be fixed in v5.11.1

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

krishnakumars7 — Fri, 02 Jul 2021 16:26:32 GMT

I am using V5.12.3, I created one scenario and in tried three different network,

Inside QlikSense Server - Working Fine

Inside One of the client network - Working Fine

Inside another Client network - Throwing websocket error.

But I can qliksense url for all the three sites,

What could be the possible issue and how to debug on it.

Regards

Krishna Kumar S

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Daniel_Larsson — Mon, 05 Jul 2021 07:01:04 GMT

@krishnakumars7 wrote:
Inside another Client network - Throwing websocket error.

What's the error?

@krishnakumars7 wrote:
But I can qliksense url for all the three sites,

Sorry, don't understand what this means?

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

krishnakumars7 — Mon, 05 Jul 2021 11:15:26 GMT

Hi Daniel,

Please find the error message screenshot attached

@krishnakumars7 wrote:

But I can qliksense url for all the three sites,

I meant, I can the qiksense hub from all three server, from where I tried scalability tool

Regards

Krishna Kumar S

Re: Qlik Sense Scalability Tools Connection Troubleshooting Tips

Daniel_Larsson — Tue, 06 Jul 2021 08:47:42 GMT

Hi,

I haven't seen that error message before, but see you are using the connect to app functionality. If you try executing a script with same connection settings, do you get a different error or the same? The script itself could be a timerdelay only or something, important part is the connection settings and trying to execute it instead of using the "connect" functionality.