After upgrading we noticed errors in the vnm as below:
WARNING at CsHPSERequestSender.cc(569): SNMP send took 5114ms! Device IP: xxxxx Request ID: xxx Operation Type: 0 Community: xxx
SendRetCode: 0 usReturnCode: 0 Timeout: 3000 Device Port: 161 m_strCommunity: public
m_nVersion: 0 m_strContextName: m_nSecLevel: 0 m_nAuthProtocol: 0
m_strAuthPwd: m_nPrivProtocol: 0 m_strPrivPwd:
WARNING at CsHPSERequestSender.cc(1571): timeout mutex lock took 4835ms!
A top command shows that the CPU at 100% utilization and on closer inspection, the SpectroSERVER's SNMP listen thread, is consuming 100% CPU.