Configuring Azure Load Balancer for Talend Administration Center
This section explains how to configure Azure Load Balancer to switch to the second Talend Administration Center if the first one is unavailable.
For more information, see Azure Load Balancer overview.
Procedure
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Create your Azure Load Balancer as follows.
Field Value Name Name your load balancer. For example, aleducLoadBalancer.
Type Select the type of Azure Load Balancer. In this case, choose Public to have a public address.Information noteNote: Choose a static IP address for your Azure Load Balancer to make sure that it keeps the same IP addresses after a reboot.Resource group Choose the same resource group as in the Talend Administration Center virtual machines. Location Choose the same location as in the Talend Administration Center virtual machines. 
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Define the Name of your Azure Load Balancer Backend
Pool, aleducLoadBalancerBackendPool for example.
The Backend Pool contains the virtual machines that the Azure Load Balancer can use according to the rules defined.
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Configure the Azure Load Balancer Health Probe as follows.
Field Value Name Define the name of your Azure Balancer Health Probe. For example, aleducLoadBalancerHealthProbe.
The probe tests the availability of the Talend Administration Center instances.
Protocol Choose HTTP to check the Tomcat availability. Port Define the port 8080, it is the Tomcat port in this case. Path Define the path to build the URL. Interval Define the interval (in seconds) at which the probe validates the availability of an instance. Unhealthy threshold Define the number of consecutive failures allowed before switching to another instance. 
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Configure the Azure Load Balancing Rule as follows.
Field Value Name Define the name of your Azure Load Balancing Rule. For example, aleducLoadBalancerRule.
IP Version Choose IPv4. Frontend IP Address Choose the Frontend IP address corresponding to the static IP address defined during the creation of the Load Balancer. Protocol Choose TCP. Port Define the port 8080, it is the Tomcat port in this case. Backend Port Define the Backend port 8080. Backend pool Choose the Backend pool you defined before. Health probe Choose the Health probe you defined before. Session persistence Choose Client IP. 