topic Re: Load Balancing Consumer Nodes in Management & Governance

Load Balancing Consumer Nodes

m_perreault — Sat, 16 Nov 2024 06:57:01 GMT

Hi All,

If I have two consumer Rim Nodes are they able to share a URL or must they have two unique URL's (Prefix). My ideal state is having one URL for users to Navigate to and when they open App A it uses the Engine on Rim Node 1 and when they open App B it uses the Engine on Rim Node 2. Sending users to different URLs for different apps becomes confusing.

Thanks,
Mark

Re: Load Balancing Consumer Nodes

Bastien_Laugiero — Thu, 03 Jan 2019 13:08:30 GMT

Hello,

You can set up a single Virtual Proxy with your two Engines load balanced and make specific apps available only on a specific engine.

To do that you will need to modify the Load Balancing rule under QMC -> Load Balancing rules.

The one called ResourcesOnNonCentralNodes will make all your applications (except monitoring apps) available on all the engine nodes.

So you will likely need to disable this rule and create a new one(s) so that you can make AppA available on Engine A and AppB available on Engine B.

You can build your load balancing rule using Custom Properties and here is an example

This will allow you to have a single URL but force specific engine(s) to load specific App(s)

Hope this helps.

Re: Load Balancing Consumer Nodes

m_perreault — Thu, 03 Jan 2019 14:16:41 GMT

Hi Bastien,

Thanks for your reply. Will this work if I am trying to balance between the Central Node and one Rim Node using one URL?

I have set up the Central Virtual Proxy to have two load balancing nodes (Central and Rim Node 1)

Then created a Custom Property for Departments = Sales and assigned this Custom Property to the Sales Stream and the Rim Node and created the below Load Balancing rule.

However when I got to the stream and open the app, the CPU is being used on the Central Node opposed to the Rim Node. I am wondering if this is because of the default Load Balancing Rule ResourcesOnCentralNode, which cannot be changed.

Thanks,
Mark

Re: Load Balancing Consumer Nodes

Bastien_Laugiero — Thu, 03 Jan 2019 15:05:19 GMT

Hello Mark,

You are correct. The central node is the only node that needs to have access to every application and this is controlled by the rule called ResourcesOnCentralNode which cannot be changed as you have mentioned.

In such case, you will need a 2nd Engine node I believe.

Having a 3 nodes setup could have some benefits such as separating the Scheduler/Engine services (reload task) to the Engines linked to your virtual proxy serving the hub so that the reload task won't consume resources on the nodes the users are connected to.

Re: Load Balancing Consumer Nodes

rohitk1609 — Fri, 04 Jan 2019 07:37:12 GMT

Hi Bastien,
you may use Network load balancer which will have a common url lets say https://yourfirmname/hub and this NLB redirect users to any of the node and when user will open the app it will consume the resources i.e CPU or RAM depends on your virtual proxy load balancing setting.

you can try to bring all your users on RIM node 1 only as https://RIMNode1/hub and set both your rim nodes in load balancing. So by round robin algo , app consumption will be happened on any of your best available rim node.

and your can set your central node scheduler as Master and Slave so your reload task consumes resources on central node while your rim nodes are getting consumed by user in app consumption

For any help please drop an comment on :
https://community.qlik.com/t5/Qlik-Sense-Enterprise-Documents/Best-Practices-for-Qlik-Sense-Multi-Node-Setup-amp-Load/tac-p/1525826
Thanks,
Rohit

Re: Load Balancing Consumer Nodes

sujay — Thu, 07 Nov 2019 06:36:24 GMT

Hi All,

Can someone please help us as it is on our production server. We have Nework load balancer created between 2 RIM node and when we try to access the lb link. it is not loading.

Can someone please help us what setting tthat needs to be changed on QMC

Thanks

Sujay

Re: Load Balancing Consumer Nodes

sujay — Thu, 07 Nov 2019 06:41:05 GMT

Could you please help me on the load balancing as we have LB created between 2 RIM and we got 1 URL but unable to accesss. port (80)also opened as we are using http.

anything needs to be changed on QMC. please let us know .

Appreciate your help.

Re: Load Balancing Consumer Nodes

rohitk1609 — Thu, 07 Nov 2019 09:35:50 GMT

Add the network load baalncer mapped URL to white host in virtual proxy

Re: Load Balancing Consumer Nodes

sujay — Thu, 07 Nov 2019 10:14:30 GMT

Thanks for the reply Rohit,

I have added lb name under the whitelist on both the server but it was not opening but if we add the lb name as a prefix on both the RIM node then it opens but it throws 404 error.

however i tried with the url name under whitelist. do you think we need to add ip of the lb instend of lb or is it required to add lb on both RIM node or center node ?

please let me know if i need to change anything .

appreciate your help .

Re: Load Balancing Consumer Nodes

sujay — Fri, 08 Nov 2019 06:37:22 GMT

Hi Rohit/All,

Could someone please help us to configure as we got stuck here and really need your help on it.

Thanks

Re: Load Balancing Consumer Nodes

sujay — Fri, 08 Nov 2019 09:06:04 GMT

When we added under the whitelisting, it is not opening but we give lb name as a prefix on both the node, it opens but it gives 404 error.

We are looking forward your help and appreciate if someone can help us though.

Please provide the steps if anythings that needs to be changed . below is complete description about the issue.

Thanks

I have added lb name under the whitelist on both the server but it was not opening but if we add the lb name as a prefix on both the RIM node then it opens but it throws 404 error.

however i tried with the url name under whitelist. do you think we need to add ip of the lb instend of lb or is it required to add lb on both RIM node or center node ?

please let me know if i need to change anything .

appreciate your help .

Re: Load Balancing Consumer Nodes

rohitk1609 — Fri, 08 Nov 2019 09:41:40 GMT

I am not sure what it means lb name and do you mean by adding as prefix . Lets say consumer nodes names are QlikServer1 and QlikServer2 and your IT mapped a name SujayAnalytics.com to Network load balancer. so you just need to add SujayAnalytics.com, Pubic IP address to the white list.

You may user few check points:

1. https://SujayAnalytics.com is accessible from VPN or inside of your network.

2. Use telnet and test 443 and 80 ports for SujayAnalytics.com.

Thanks,

Rohit

Re: Load Balancing Consumer Nodes

sujay — Mon, 11 Nov 2019 05:39:01 GMT

Thank you so much for helping.

We have load balancer created for both the RIM node. and we have added the lb name as a whitelisted on both RIM node but the load balancer page is not opening. however the 80 port is opened from both the side (citrix and our server) We are using http .

now if we added the load balancer name as a prefix , the page opens but it is throwing 404 error.

We are really got stuck and need your help on that to resolve.

Appreciate your help..

Re: Load Balancing Consumer Nodes

rohitk1609 — Mon, 11 Nov 2019 08:17:35 GMT

Did you enable http option in Proxies ?

Re: Load Balancing Consumer Nodes

sujay — Mon, 11 Nov 2019 08:45:09 GMT

Yes, It's enabled and it is opening with http://RIM1 but only load balancer is not opening .

We checked and saw that port 80 is already opened. I tried with adding load balancer in whitelisted but no luck

Re: Load Balancing Consumer Nodes

rohitk1609 — Mon, 11 Nov 2019 10:21:06 GMT

Can you share the snapshot how of your white list proxy settings ?

Re: Load Balancing Consumer Nodes

sujay — Mon, 11 Nov 2019 10:35:28 GMT

Hi Rohit,

Attached the both the RIM node's whitelisted URL . it's load balancer url.

also we have selected both the RIM node as load balancer host name.

Re: Load Balancing Consumer Nodes

rohitk1609 — Mon, 11 Nov 2019 18:42:27 GMT

just add

ibqlikhub_prod.pra.bfsiplatform.com

please check the spelling about and add IP address of ibqlikhub_prod.pra.bfsiplatform.com DNS name too.

Re: Load Balancing Consumer Nodes

sujay — Tue, 12 Nov 2019 09:54:09 GMT

Hi Rohit,

Thank you so much for helping us here. Really grateful, Now what we came to know is that it was required DNS ip on whitelisting and it got resolved . now load balancer url is opening fine .

Could you please help us on one more error we are getting while launching the url. seems like some setting has been changed. attached the error . if you could please help me.

Re: Load Balancing Consumer Nodes

rohitk1609 — Tue, 12 Nov 2019 10:00:45 GMT

Never had this issue before. Please explore community or lock a ticket or drop a note on kumar.rohit1609@gmail.com

Thanks,

Rohit