topic Re: Qlikview server Load balancing cluster on the existing environment in QlikView

Qlikview server Load balancing cluster on the existing environment

Mon, 26 Jan 2026 18:19:17 GMT

Hello Qlik folks, I can't find better material to install the Qlikview server upgrade from single node to Load balancing cluster.

Currently, we have only one Qlikview server (qvsp01) that host all the services Qlikview server , Web server , Publisher & Management Console. We attached the data hard drives to qvsp01 and the shares were created on the these drives for source & user documents folders. We are using AJAX client on the access point.

But we got 2 more servers qvsp02 , qvsp03 and we are planing to modifying the existing architecture and finally we decided to go to below:

QVSP01:

1. Qlikview Distribution Service (Publisher)

2. Qlikview Management Service (QMS API)

Source & user Documents still on the QVSP01

QVSP02 & QVSP03: [Load balancing]

1. Qlikview Server service

2. Qlikview Web server

3. Qlikview directory service.

How can I upgrade the above architecture ? what steps I need to take care of in this upgrade process ?

I can't find this type of upgrade documents in Qlikview server reference manual.

Please help me on this.

Re: Qlikview server Load balancing cluster on the existing environment

Anonymous — Tue, 13 Oct 2015 18:04:39 GMT

You will need shared file storage that all 3 servers can access.

Will you be using the file shares on qvsp01 as shared storage also for qvsp02 and qvsp03 ?

Re: Qlikview server Load balancing cluster on the existing environment

Tue, 13 Oct 2015 18:50:57 GMT

Bill, we attached data files on QVSP01 and created the shared folders like below:

\\qvsp01\QVPublic --> User Documents folder

\\qvsp01\QVSource --> Source Documents folder

\\qvsp01\QVData --> QVD Files folder

All these shared folder accessed by qvsp02/p03 with Qlikview Service account "qlikviewprod"

All these shared created on the qvsp01 server F:\ drive.

Re: Qlikview server Load balancing cluster on the existing environment

Anonymous — Tue, 13 Oct 2015 18:59:26 GMT

I'd suggest a dedicated switched VLAN with dedicated NIC's on all 3 servers for your file data network traffic.

Re: Qlikview server Load balancing cluster on the existing environment

Anonymous — Tue, 13 Oct 2015 19:16:48 GMT

For migrating some suggestions could be :

Install QV Server on QVSP02 with your new cluster licence, so you have a 1 node cluster
Add existing QV Server on QVSP01 into the new cluster, so you now have a 2 node cluster
- Will need the new cluster licence
Carefully check all ok
Remove QVSP01 from the cluster and close the service down, so you have a 1 node cluster
Install QV Server on QVSP02 with your new cluster licence, so you have a 2 node cluster
Uninstall QV Server from QVSP01

Install QV Web Server on QVSP02 & 03 and do not use for QV Management Service
Sort them in QMC

Keep QV Web Server on QVSP01 and do not use for
But use it only for QV Management Service

Never moved a QV Directory service

Re: Qlikview server Load balancing cluster on the existing environment

Tue, 13 Oct 2015 19:17:07 GMT

Thanks for your suggestion Bill. Unfortunately we need submit lot of requests to get NAS drives. The requests only approved if existing environment won't work or unstable.

Is it possible to upgrade with current infrastructure ? what are steps for upgrade process ?

Re: Qlikview server Load balancing cluster on the existing environment

Tue, 13 Oct 2015 19:33:11 GMT

Bill, In the first point, Install QV server means, I need select custom Install option & check Qlikview server & Web server ?

Our existing server license is also have cluster capability up to 5 nodes . Do we need new license again ?

This is LEF info: NUMBER_OF_CLUSTER_NODES;5;;

Re: Qlikview server Load balancing cluster on the existing environment

Tue, 20 Oct 2015 14:46:18 GMT

Bill,

I installed the Qlikview server on QVSP02 but how can I load balance the access point ?

I am using Qlikview web server not IIS.

Re: Qlikview server Load balancing cluster on the existing environment

Peter_Cammaert — Tue, 20 Oct 2015 15:01:42 GMT

A few remarks on what I think Bill was explaining (I may have misread it)

The QMS includes its own web server, you don't need a QVWS (or IIS) to navigate to the QMC. So the machine with QMS installed won't need a separate web server.
However how exactly are you going to do load balancing? The load balancing is usually done by a single QVWS (has builtin features to do that) that forwards each user from the AP to the QVS machine that a) can deliver the required document, and that b) has not much to do at the moment. If you install two web servers, you'll get two URLs to navigate to which isn't particularly user friendly

If you want a fully fail-safe set-up, you can install two QVWS but then you'll need a network load balancer (device) to direct users to the proper QVWS.

Peter

Re: Qlikview server Load balancing cluster on the existing environment

Peter_Cammaert — Tue, 20 Oct 2015 15:02:49 GMT

The AP doesn't need load balancing as it's a simple web site that serves static pages.

Re: Qlikview server Load balancing cluster on the existing environment

Tue, 20 Oct 2015 16:04:02 GMT

Hi Peter, I installed Qlikview server component that includes directory service connector on QVSP02. I add the second server info on the QEMC & made the cluster.

How can I route AP traffic to two servers ? I can't find settings for this.

After changes:

http://qvsp01/qlikview/index.htm ‌This is working : This QVSP01 access point

http://qvsp02/qlikview/index.htm ‌‌This is not working

How can create one access point url to manage 2 servers?

Re: Qlikview server Load balancing cluster on the existing environment

Peter_Cammaert — Tue, 20 Oct 2015 16:14:36 GMT

You don't have to do that, your Access Point server (a single QVWS) will do this. As I explained before, you will have a single AccessPoint (which is perfectly ok). As soon as a user clicks on a Document thumbnail, the load balancing software inside QVWS will talk to the two QVS services and decide based on specific parameters where to send the user to.

The AccessPoint URL will always be one of the two non-publisher servers. Configure the two QVS in QMC with your cluster license, and configure QVWS so that it knows what load balancing strategy to use.

See chapter 17.3 in the QlikView Server Reference Manual for more information.

You do have a Cluster license, don't you?

Re: Qlikview server Load balancing cluster on the existing environment

Tue, 20 Oct 2015 17:09:25 GMT

We have cluster license up to 5 nodes. I will look into server reference manual. According to your comments, qvsp01/qlikview/index.htm is send the traffic to either of servers depends on the cluster settings.

Our concerns is the access point url misleading to users, its have only one server. So can we markup the access point url like qvspv/qlikview/index.htm ?

Is it possible with QVWS ?

Re: Qlikview server Load balancing cluster on the existing environment

Peter_Cammaert — Tue, 20 Oct 2015 21:19:17 GMT

Correct.

There are two solutions for this issue:

Either install QVWS on a fourth (scaled down) server that you call 'qvspv'. It doesn't have to be a high-performance server as it will only provide the AccessPoint landing page to users, and will forward them immediately to the appropriate QVS platform when they try to open a QlikView document,
Or in your company's DNS database, register a domain alias like qvspv.yourcompany.internal or simply qlikview.yourcompany.internal and assign it to the same intranet ip-address of the machine that is running the QVWS. For example, if you do this for machine qvsp01 because that's where you installed QVWS and configured a load balancing strategy, your users will navigate to http://qvspv/qlikview (or even better: http://qlikview/qlikview) and land on the AccessPoint page.

Best,

Peter

Re: Qlikview server Load balancing cluster on the existing environment

Wed, 21 Oct 2015 16:00:33 GMT

Thanks Peter. I will discuss with my IT team & go with option 2. Even though we can change the server it doesn't impact user bookmarks.

We are doing some OS upgrades, how can we back up the all our tasks & apply task back after upgrade.

Just move the QVPR xml repository move to shared drive and move back to folder after upgrades. I need to take any other precautions to avoid re creating the tasks again.

Re: Qlikview server Load balancing cluster on the existing environment

Colin-Albert — Wed, 21 Oct 2015 16:20:09 GMT

Hi Dathu,

It would be worth you getting a copy of Steve Redmond's book on QlikView Server as this have plenty of information on setting up QV Servers in a cluster environment. stephen-x.redmond‌

The book is available from PACKT

https://www.packtpub.com/networking-and-servers/qlikview-server-and-publisher

Re: Qlikview server Load balancing cluster on the existing environment

Peter_Cammaert — Thu, 22 Oct 2015 06:02:47 GMT

I guess your post contains two questions (not entirely clezr). If it does not, just ignore my reply.

"We are doing some OS upgrades, how can we back up the all our tasks & apply task back after upgrade."?

Just make a copy of C:\ProgramData\QlikTech\ManagementService\QVPR and put it back in the exact same place after your OS upgrade. An even easier method may be to make a small change to one of your tasks. QMS will make a backup itself of the entire Task database before the change and put it in the Backups folder. You can use that zip as backup.

" I need to take any other precautions to avoid re creating the tasks again."?

Make sure that after the OS Upgrade your Source documents have the exact same names and locations. Otherwise, the restored tasks will lose track of the actual QVW documents.