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  • 1.  High Available web IIS server/gateway in 11.1

    Posted Tue August 04, 2020 09:18 AM
    I can't seem to find much information specifically around making the Web server/gateway running IIS highly available.  Is the feature built into Cognos Analytics 11.1 or do you have to use MS Cluster or a load balancer in front .. ?  Anyone have any thoughts or know where documentation would be ?  Thanks

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    SC
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    #CognosAnalyticswithWatson


  • 2.  RE: High Available web IIS server/gateway in 11.1

    Posted Wed August 05, 2020 06:54 AM

    SC – in the install guide, there is an area that talks about Microsoft IIS Server Farms.  If you read this section, it will guide you through how to set up high availability.  We have this implemented in our shop.

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    Peter Chan

    613-295--0428

     




    Original Message


  • 3.  RE: High Available web IIS server/gateway in 11.1

    Posted Wed August 05, 2020 07:50 AM
    Good morning!  In addition to what Peter Chan says, you can go a step further and implement 2 separate web servers (both with Cognos installed and configured with server farms).  In the network layer you would add a load balancer (ex: an F5 switch) in front of those 2 gateways, round robin-ing requests to both.  When one gateway goes down, your load balancer would route all traffic to the functioning gateway until the other came back online.

    As part of this setup you'd give the users a web address to access the load balancer  (mycognos.company.com or similar) rather than the address of one or the other of your gateway servers.

    Rich

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    Richard Chester
    Director of Business Intelligence
    LPA Software Solutions
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    Original Message


  • 4.  RE: High Available web IIS server/gateway in 11.1

    Posted Wed August 05, 2020 07:59 AM
    I am attempting to add some failover and possibly load balancer for each layer where possible.  I wanted to add a second server to be web and gateway using IIS.  So can you do these using the server farms or do I have to add a load balancer in front to achieve this goal ?  I can't say the documentation is great on this and I tried looking for videos as well but couldn't find any on this topic.  thanks everyone

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    SC
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    Original Message


  • 5.  RE: High Available web IIS server/gateway in 11.1

    Posted Wed August 05, 2020 09:57 AM
    If you are using server farms, one web server goes down you will have to provide other web URL to user login into system. 
    if you have load balancer   in place along with two gateway servers , one server goes down automatically it will redirect to second server and no impact to user still they can use same URL. 

    FYI, we had a similar approach and no issues from end users.

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    Rajitha Kalluri
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    Original Message