CONTAP-214876: Primary node is unresponsive to REST API calls due to memory pressure.
Issue
Primary node is unresponsive to REST API calls and high latency observed for secondary node.
EMS logs reports CPU starvation in RDB.
[Sun Mar 24 23:12:27 +0000 [node-01: mgwd: rdb.node.starvation:error]: CPU starvation detected in the RDB.]
Additional observations:
-Primary node has many peered clusters of various sizes and hundreds of FlexCache volumes spread across these clusters/nodes.
-FlexCache uses CSM sessions to communicate across clusters and Each CSM session is comprised of many TLS connections.