Hi team, I am a performance test lead in one of the leading banks. My client uses SAS as their platform for building one of the systems to monitor frauds. As a part of business requirement, any request that is sent from ESB (Middleware) to the Fraud system (SAS) will wait only for 3 Seconds, post which ESB considers it as a timeout. We are currently facing weird issue where the SAS RTDM server is operating with <2% timeouts when running with 3 Nodes (basically 2 servers with 2 ports each with a total of 4 nodes, typically load balanced), whereas when we go with 4 nodes up and running, >70% requests are timedout. Our SAS team here suggests that there are some shared resources causing these issue, but unfortunately for almost a month we are not able to resolve this issue. Can someone shed some light on this issue to resolve it ASAP? Kindly let me know in case of any additional details, since I am not sure whether the info shared would suffice to clarify my area of doubt!
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