After upgrading to 21.2.8 we notice that topology under the Navigation window does not always populate.
Sometimes it populates after several minutes, sometimes it does not populate at all.
We have another OneClick server on 21.2.8 that does not have this problem.
Release : 21.2.8
Component : OneClick
Known performance issue in 21.2.8
DE528191 Details:
Symptom : OneClick console experiences performance issues and Tomcat log shows lot many com.aprisma.spectrum.core.idl.CsCException.CsCSpectrumException { com.aprisma.spectrum.core.idl.CsCError.CsCError_e error=NO_USER Exceptions.
Resolution: Fixed it by setting username to CORBAHELPER so that SS will not throw NO_USER Exceptions and should not hamper OC Performance.
(DE528191, 33019402)
Please open a support case and request patch 21.02.08.PTF_21.2.806a.