We continue to get certian exceptions in the pega/alert logs in the production enviornment . We fix it from time to time therefore minimising the risks of the cases landing in exceptionsal scenarios . Just wanted to check if by any chance the exceptions will impact the performance of the application in a multi node system where the number of users logged in at a time is above 2000.
I don't think just an exception should impact the overall performance, However you may track the exception stack traces from PegaRULES log and investigate it by correlating the alerts generated (if any) from the alert log.
Sometimes Exceptions/Alert may impact performance like 'Pega0031' alert, however that usually be a bug.