Calling ZAPI “file-assign-qos” results high CPU utilization

[ Edited ]

The information is as below and you can also find case in attached link

Case Number: 2005519142

Company Name: SoFu

Case Priority: P3

Customer Region (State/Country/Timezone): Korea

Problem description:

The customer is using ZAPI file-assign-qos to configure QoS policy on this CDOT system(FAS8060 with full SSD).

They observed that calling ZAPI file-assign-qos results high CPU utilization only in the node1(Node2 is working well).

 The following perfstat captured above behavior.