Hi Ravi,
I don't think the CAS server itself runs a JVM, so this OOM is probably coming from one of the supporting services.
I'd start by checking the log of the sas-data-explorer-app pod to see if you see the java.lang.OutofMemoryError in there and if so, increase the Xmx for the service SAS Data Explorer's jvm definition in Env Mgr > Configuration > All Services > SAS Data Explorer.
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Greg Wootton | Principal Systems Technical Support Engineer