Need help on Qlik Sense Automatic FailOver URLs and list of certificates

anily86 — Tue, 05 Nov 2024 15:24:08 GMT

Dear Qlik Experts,

Environment Details:

-----------------------------------------------------------------------------------------------------------------------------------------------------

Central node on Windows 2019 server with QS Nov 2023 Patch 9

URL - www.centralnode.com and IP is 1.2.3.4

RIM node (FailOver) on Windows 2019 server with QS Nov 2023 Patch 9

URL is - www.rimnode.com and IP is 5.6.7.8

Repository Db(not within Qlik Sense Central) / Postgredb 14.11 version is in Linux server

-----------------------------------------------------------------------------------------------------------------------------------------------------

Manual Failover:

-----------------------------------------

1. Currently, I am doing a manually failover by forcing Qlik services stopping in central node to take the control by FailOver node (RIM node) which is working fine.

2. Before Fail over qmc/hub URL was - www.centralnode.com/hub

3. After Fail Over qmc/hub is working with - (www.rimnode.com) which means fail over is working, but I don't want to communicate or force users to use (www.rimnode.com/hub) or feel the difference of environment usage hence to use the www.centralnode.com/hub after fail over so I have contacted the network team to switch the IPs of Central to RIM node (Fail Over) so users will be using same URL (www.centralnode.com/hub). The moment Central Node IP is mapped to FailOver node, QMC/hub url displayed with http error with "Qlik logo + 400 Bad Request The http request header is incorrect." with url lock showing as "not secure" (it was secure before failover).

Also before starting Fail Over I did below:

-------------------------------------------------------------

1. Copied the Central node Qlik Client and Service Cluster Certficate to RIM node

2. White listed Central and RIM nodes in virtual proxies of both Central and RIM.

3. Browser/URL SSL Thumbprint of Central and RIM is different as we have different certificates.

Can someone help/assist me if any other certificate/thumbprint/something else to be done to make it work? Did I miss something ? Please suggest

4. Once the above theory of IP switching works, I will map 2 IP addresses to Central node so fail over will become automatic the moment central goes down.

Thanks,

Anil

Re: Need help on Qlik Sense Automatic FailOver URLs and list of certificates

Mike_Dickson — Thu, 06 Mar 2025 19:52:57 GMT

@anily86
It sounds like you are attempting to have a type of High Availability environment for your users. I would like to provide you the following link to the Qlik Admin Playbook that might be able to provide some guidance: IE Active Central & Passive Central. You would want to be using a DNS alias so that the end users are not using the individual server names / IP addresses.

Resiliency & HA - qs-admin-playbook

And

Plan Disaster Recovery - qs-admin-playbook

I know these are not detailed guides, but I hope this is a good starting point if you have not already viewed them.

topic Need help on Qlik Sense Automatic FailOver URLs and list of certificates in Management & Governance

Need help on Qlik Sense Automatic FailOver URLs and list of certificates

Re: Need help on Qlik Sense Automatic FailOver URLs and list of certificates