Server Side Workflows - Load Balancer

Matt Palavido

August 06, 2019 23:17

We are currently testing out a load balancer that balances between two identical boxes with IIS. Both have Geocortex installed and save their workflow related data to common network share. This works fine for client side workflows, however when a server-side workflow is saved and the load balancer redirects to the other IIS server, it will no longer open.

 

Anyone else using a load balancer with an on-prem installation? Any tips or tricks?

 

Thanks in advance!

 

Matt

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  Tom Neer

  August 07, 2019 13:44

  Matt - This probably best answered by someone from VertiGIS but I would suggest you look at sticky-session load balancing.

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  Ken Lyon

  August 07, 2019 15:34

  Yes, Tom just beat me to it there! By using a sticky session, a given user will be routed to the same server for the duration of their session, eliminating the problems you described.

   

  We may consider improving support for other forms of load balancing in future, but there are no plans for this as of yet.

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  Matt Palavido

  August 07, 2019 15:46

  Thanks Ken and Tom! That gave me a place to look and answered my question. Turns out we have a rule set up that keeps the session active on the same VM, but only for a max duration of 30 mins.

   

  Thanks again for the quick response...it saved me from going down a rabbit hole :)

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