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RalphJ avatar image
RalphJ asked RalphJ posted

Use of ZXTM Load Balancing servers with FlexLM License Servers

 

Customer would like existing iTest users to point at the normal network, fully-redundant, license server which in turn points them (via DNS), to ZXTM Load Balancing servers.

 

[BTW - ZXTM (Zeus Extensible Traffic Manager) manages your application traffic, inspecting, transforming and routing requests as it load-balances them across the application infrastructure]

 

ZXTM then load balances to the license servers.

 

The requirement is to not see direct connections to the license server because they would like to take machines in and out of the pool without client disruption.

 

Can you confirm what, if any, challenges this approach might have ?

iTestinstallation - licensing
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PaulD avatar image
PaulD answered PaulD posted

I don't think you need to use a load balancer to achieve this goal.  In fact, I don't believe that a load balancer would help you much anyway.

 

I believe that FlexLM already supports fault tolerance between license servers.  You can configure iTest with more than one license server and it will find one that is available.  And the servers can be configured in a redundant pool arrangement.  For more information, you'll need to deal with the FlexLM folks, as that is not our product.

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RalphJ avatar image RalphJ commented ·

Already utilising a Triad, redundancy approach to great effect.

The requirement to implement load balancing comes from the possibility that this customer will be implementing FlexLM LIcense Servers with multiple vendors - inc. iTest.

Hence - those License Servers will have much user access for multiple tools. I don't have any actual numbers we're working with here but this is coming from a wider adoption, admin perspective.

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PaulD avatar image PaulD RalphJ commented ·

Again, the server side of this is not a Fanfare product.  I encourage you (and your customer) to communicate with the makers of FlexLM.

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