Best practices for configuring load balancing for Atrium Integrator

The Atrium Integrator server can be used in a server group environment to distribute the jobs across multiple Atrium Integrator Carte servers. In a Remedy Action Request System server group environment, you can schedule your jobs to run from different Atrium Integrator Carte servers. This enables you to run multiple jobs at one time and also achieve load balancing.

The following figure illustrates the concept of Remedy Action Request System server group and multiple Atrium Integrator Carte server support. 

The UDM: Config form contains information about how many Remedy Action Request System servers are configured in a particular server group and which Atrium Integrator Carte server is associated with each Remedy AR System server. In Atrium Integrator server group environment, the Carte server on which a job will get executed through Atrium Integrator console depends on the entry available in the UDM:Config form. The Remedy AR System server installer creates an entry in UDM:Config form about the Carte server host and port details.The host entry in UDM:Config form must follow the DNS standard.
The UDM:PermissionInfo form contains information about jobs and the associated Atrium Integrator Carte servers they run on.

When you set up Atrium Integrator in server group environment, consider the following points:

• You must also ensure that you have installed the Atrium Integrator Carte server and Atrium Integrator Spoon components in a server group environment. When you install the Atrium Integrator server on each server within the server group environment, the CMDB plug-ins are deployed on the servers. For more information, see  Installing Atrium Integrator server in a server group .

• When you create a job by using the Integration Job Builder wizard in a server group environment, you have to select the appropriate Atrium Integrator Carte server on the Schedule page. If you run a job in the Atrium Integrator console, the job runs on the Atrium Integrator Carte of Remedy Action Request System server that you access through the mid-tier server. You can change the Atrium Integrator Carte server by scheduling the job to a run on a different Atrium Integrator Carte server. See Creating an Atrium Integrator job schedule.

• In Atrium Integrator server group environment, the cache is created on the the server from where you execute a job. For example, if server A is the primary server and server B is the secondary server, and if you execute the job from server B, the cache is created on server B. 
  If you schedule a job on a server with the cache enabled and then schedule the same job on another server within the server group, you must manually copy the cache to the second server to avoid a negative impact on the performance.
• When you create or run CSV or XML jobs in a server group, make sure, the files are physically present at the same location on all the Remedy Action Request System server in the server group.
• If you have a load balancer configured and if you want to run the job on the load balancer content server (midtier), you must update the load balancer content server (midtier) entry in the UDM:RAppPassword form.